intermediate commit

package.json

@@ -109,6 +109,7 @@
     "ng2-nouislider": "^1.7.11",
     "ngx-bootstrap": "^3.0.1",
     "ngx-infinite-scroll": "6.0.1",
+    "ngx-moment": "^3.1.0",
     "ngx-pagination": "3.0.3",
     "nouislider": "^11.0.0",
     "pem": "1.12.3",
@@ -154,7 +155,7 @@
     "css-loader": "0.28.9",
     "deep-freeze": "0.0.1",
     "exports-loader": "^0.7.0",
-    "html-webpack-plugin": "3.2.0",
+    "html-webpack-plugin": "^4.0.0-alpha",
     "imports-loader": "0.7.1",
     "istanbul-instrumenter-loader": "3.0.1",
     "jasmine-core": "^3.2.1",
@@ -188,7 +189,7 @@
     "protractor": "^5.3.0",
     "protractor-istanbul-plugin": "2.0.0",
     "raw-loader": "0.5.1",
-    "resolve-url-loader": "2.2.1",
+    "resolve-url-loader": "^2.3.0",
     "rimraf": "2.6.2",
     "rollup": "^0.56.0",
     "rollup-plugin-commonjs": "^8.3.0",

src/app/+collection-page/collection-page.component.ts

@@ -1,6 +1,6 @@
 import { ChangeDetectionStrategy, Component, OnDestroy, OnInit } from '@angular/core';
 import { ActivatedRoute } from '@angular/router';
-import { Observable ,  Subscription } from 'rxjs';
+import { Observable,  Subscription } from 'rxjs';
 import { SortDirection, SortOptions } from '../core/cache/models/sort-options.model';
 import { CollectionDataService } from '../core/data/collection-data.service';
 import { PaginatedList } from '../core/data/paginated-list';

src/app/+community-page/community-page.component.ts

@@ -1,7 +1,8 @@
+import {mergeMap, filter, map} from 'rxjs/operators';
 import { ChangeDetectionStrategy, Component, OnDestroy, OnInit } from '@angular/core';
 import { ActivatedRoute } from '@angular/router';
 
-import { Subscription ,  Observable } from 'rxjs';
+import { Subscription, Observable } from 'rxjs';
 import { CommunityDataService } from '../core/data/community-data.service';
 import { RemoteData } from '../core/data/remote-data';
 import { Bitstream } from '../core/shared/bitstream.model';
@@ -34,11 +35,11 @@ export class CommunityPageComponent implements OnInit, OnDestroy {
   }
 
   ngOnInit(): void {
-    this.communityRD$ = this.route.data.pipe((data) => data.community);
-    this.logoRD$ = this.communityRD$
-      .map((rd: RemoteData<Community>) => rd.payload)
-      .filter((community: Community) => hasValue(community))
-      .flatMap((community: Community) => community.logo);
+    this.communityRD$ = this.route.data.pipe(map((data) => data.community));
+    this.logoRD$ = this.communityRD$.pipe(
+      map((rd: RemoteData<Community>) => rd.payload),
+      filter((community: Community) => hasValue(community)),
+      mergeMap((community: Community) => community.logo));
   }
 
   ngOnDestroy(): void {

src/app/+item-page/field-components/collections/collections.component.ts

@@ -1,3 +1,5 @@
+
+import {map} from 'rxjs/operators';
 import { Component, Input, OnInit } from '@angular/core';
 import { Observable } from 'rxjs';
 
@@ -35,11 +37,11 @@ export class CollectionsComponent implements OnInit {
     // TODO: this should use parents, but the collections
     // for an Item aren't returned by the REST API yet,
     // only the owning collection
-    this.collections = this.item.owner.map((rd: RemoteData<Collection>) => [rd.payload]);
+    this.collections = this.item.owner.pipe(map((rd: RemoteData<Collection>) => [rd.payload]));
   }
 
   hasSucceeded() {
-    return this.item.owner.map((rd: RemoteData<Collection>) => rd.hasSucceeded);
+    return this.item.owner.pipe(map((rd: RemoteData<Collection>) => rd.hasSucceeded));
   }
 
 }

src/app/+item-page/full/field-components/file-section/full-file-section.component.ts

@@ -1,5 +1,6 @@
+
+import {combineLatest as observableCombineLatest,  Observable } from 'rxjs';
 import { Component, Input, OnInit } from '@angular/core';
-import { Observable } from 'rxjs';
 
 import { Bitstream } from '../../../../core/shared/bitstream.model';
 import { Item } from '../../../../core/shared/item.model';
@@ -33,7 +34,7 @@ export class FullFileSectionComponent extends FileSectionComponent implements On
   initialize(): void {
     const originals = this.item.getFiles();
     const licenses = this.item.getBitstreamsByBundleName('LICENSE');
-    this.bitstreamsObs = Observable.combineLatest(originals, licenses, (o, l) => [...o, ...l]);
+    this.bitstreamsObs = observableCombineLatest(originals, licenses, (o, l) => [...o, ...l]);
     this.bitstreamsObs.subscribe(
       (files) =>
         files.forEach(

src/app/+item-page/full/full-item-page.component.ts

@@ -1,3 +1,5 @@
+
+import {filter, map} from 'rxjs/operators';
 import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
 import { ActivatedRoute } from '@angular/router';
 
@@ -41,9 +43,9 @@ export class FullItemPageComponent extends ItemPageComponent implements OnInit {
   /*** AoT inheritance fix, will hopefully be resolved in the near future **/
   ngOnInit(): void {
     super.ngOnInit();
-    this.metadata$ = this.itemRD$
-      .map((rd: RemoteData<Item>) => rd.payload)
-      .filter((item: Item) => hasValue(item))
-      .map((item: Item) => item.metadata);
+    this.metadata$ = this.itemRD$.pipe(
+      map((rd: RemoteData<Item>) => rd.payload),
+      filter((item: Item) => hasValue(item)),
+      map((item: Item) => item.metadata),);
   }
 }

src/app/+item-page/simple/item-page.component.ts

@@ -1,3 +1,5 @@
+
+import {mergeMap, filter, map} from 'rxjs/operators';
 import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
 import { ActivatedRoute } from '@angular/router';
 
@@ -44,11 +46,11 @@ export class ItemPageComponent implements OnInit {
   }
 
   ngOnInit(): void {
-    this.itemRD$ = this.route.data.map((data) => data.item);
+    this.itemRD$ = this.route.data.pipe(map((data) => data.item));
     this.metadataService.processRemoteData(this.itemRD$);
-    this.thumbnail$ = this.itemRD$
-      .map((rd: RemoteData<Item>) => rd.payload)
-      .filter((item: Item) => hasValue(item))
-      .flatMap((item: Item) => item.getThumbnail());
+    this.thumbnail$ = this.itemRD$.pipe(
+      map((rd: RemoteData<Item>) => rd.payload),
+      filter((item: Item) => hasValue(item)),
+      mergeMap((item: Item) => item.getThumbnail()),);
   }
 }

src/app/+search-page/search-filters/search-filter/search-facet-filter/search-facet-filter.component.ts

@@ -1,20 +1,19 @@
+import {combineLatest as observableCombineLatest, of as observableOf,  BehaviorSubject ,  Observable ,  Subject ,  Subscription } from 'rxjs';
+import {switchMap, distinctUntilChanged, first,  map } from 'rxjs/operators';
 import { animate, state, style, transition, trigger } from '@angular/animations';
 import { Component, Inject, OnDestroy, OnInit } from '@angular/core';
 import { Router } from '@angular/router';
-import { BehaviorSubject ,  Observable ,  Subject ,  Subscription } from 'rxjs';
 import { RemoteDataBuildService } from '../../../../core/cache/builders/remote-data-build.service';
 import { PaginatedList } from '../../../../core/data/paginated-list';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { hasNoValue, hasValue, isNotEmpty } from '../../../../shared/empty.util';
 import { EmphasizePipe } from '../../../../shared/utils/emphasize.pipe';
-import { SearchOptions } from '../../../search-options.model';
 import { FacetValue } from '../../../search-service/facet-value.model';
 import { SearchFilterConfig } from '../../../search-service/search-filter-config.model';
 import { SearchService } from '../../../search-service/search.service';
 import { FILTER_CONFIG, SearchFilterService } from '../search-filter.service';
 import { SearchConfigurationService } from '../../../search-service/search-configuration.service';
 import { getSucceededRemoteData } from '../../../../core/shared/operators';
-import { map } from 'rxjs/operators';
 
 @Component({
   selector: 'ds-search-facet-filter',
@@ -53,7 +52,7 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
   /**
    * Emits the result values for this filter found by the current filter query
    */
-  filterSearchResults: Observable<any[]> = Observable.of([]);
+  filterSearchResults: Observable<any[]> = observableOf([]);
 
   /**
    * Emits the active values for this filter
@@ -79,25 +78,25 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
    */
   ngOnInit(): void {
     this.filterValues$ = new BehaviorSubject(new RemoteData(true, false, undefined, undefined, undefined));
-    this.currentPage = this.getCurrentPage().distinctUntilChanged();
+    this.currentPage = this.getCurrentPage().pipe(distinctUntilChanged());
     this.selectedValues = this.filterService.getSelectedValuesForFilter(this.filterConfig);
     const searchOptions = this.searchConfigService.searchOptions;
     this.subs.push(this.searchConfigService.searchOptions.subscribe(() => this.updateFilterValueList()));
-    const facetValues = Observable.combineLatest(searchOptions, this.currentPage, (options, page) => {
+    const facetValues = observableCombineLatest(searchOptions, this.currentPage, (options, page) => {
       return { options, page }
-    }).switchMap(({ options, page }) => {
+    }).pipe(switchMap(({ options, page }) => {
       return this.searchService.getFacetValuesFor(this.filterConfig, page, options)
         .pipe(
           getSucceededRemoteData(),
           map((results) => {
               return {
-                values: Observable.of(results),
+                values: observableOf(results),
                 page: page
               };
             }
           )
         )
-    });
+    }));
     let filterValues = [];
     this.subs.push(facetValues.subscribe((facetOutcome) => {
       const newValues$ = facetOutcome.values;
@@ -117,7 +116,7 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
         this.animationState = 'ready';
         this.filterValues$.next(rd);
       }));
-      this.subs.push(newValues$.first().subscribe((rd) => {
+      this.subs.push(newValues$.pipe(first()).subscribe((rd) => {
         this.isLastPage$.next(hasNoValue(rd.payload.next))
       }));
     }));
@@ -180,7 +179,7 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
    * @param data The string from the input field
    */
   onSubmit(data: any) {
-    this.selectedValues.first().subscribe((selectedValues) => {
+    this.selectedValues.pipe(first()).subscribe((selectedValues) => {
         if (isNotEmpty(data)) {
           this.router.navigate([this.getSearchLink()], {
             queryParams:
@@ -189,7 +188,7 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
           });
           this.filter = '';
         }
-        this.filterSearchResults = Observable.of([]);
+        this.filterSearchResults = observableOf([]);
       }
     )
   }
@@ -211,12 +210,12 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
    * @returns {Observable<any>} The changed filter parameters
    */
   getRemoveParams(value: string): Observable<any> {
-    return this.selectedValues.map((selectedValues) => {
+    return this.selectedValues.pipe(map((selectedValues) => {
       return {
         [this.filterConfig.paramName]: selectedValues.filter((v) => v !== value),
         page: 1
       };
-    });
+    }));
   }
 
   /**
@@ -225,12 +224,12 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
    * @returns {Observable<any>} The changed filter parameters
    */
   getAddParams(value: string): Observable<any> {
-    return this.selectedValues.map((selectedValues) => {
+    return this.selectedValues.pipe(map((selectedValues) => {
       return {
         [this.filterConfig.paramName]: [...selectedValues, value],
         page: 1
       };
-    });
+    }));
   }
 
   /**
@@ -249,7 +248,7 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
    */
   findSuggestions(data): void {
     if (isNotEmpty(data)) {
-      this.searchConfigService.searchOptions.first().subscribe(
+      this.searchConfigService.searchOptions.pipe(first()).subscribe(
         (options) => {
           this.filterSearchResults = this.searchService.getFacetValuesFor(this.filterConfig, 1, options, data.toLowerCase())
             .pipe(
@@ -264,7 +263,7 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
         }
       )
     } else {
-      this.filterSearchResults = Observable.of([]);
+      this.filterSearchResults = observableOf([]);
     }
   }
 

src/app/+search-page/search-filters/search-filter/search-filter.component.ts

@@ -1,3 +1,5 @@
+
+import {first} from 'rxjs/operators';
 import { Component, Input, OnInit } from '@angular/core';
 import { SearchFilterConfig } from '../../search-service/search-filter-config.model';
 import { SearchFilterService } from './search-filter.service';
@@ -35,7 +37,7 @@ export class SearchFilterComponent implements OnInit {
    * Else, the filter should initially be collapsed
    */
   ngOnInit() {
-    this.getSelectedValues().first().subscribe((isActive) => {
+    this.getSelectedValues().pipe(first()).subscribe((isActive) => {
       if (this.filter.isOpenByDefault || isNotEmpty(isActive)) {
         this.initialExpand();
       } else {

src/app/+search-page/search-filters/search-filter/search-filter.service.ts

@@ -1,8 +1,8 @@
+import { combineLatest as observableCombineLatest, Observable } from 'rxjs';
 import { Injectable, InjectionToken } from '@angular/core';
 import { distinctUntilChanged, map } from 'rxjs/operators';
 import { SearchFiltersState, SearchFilterState } from './search-filter.reducer';
-import { createSelector, MemoizedSelector, Store } from '@ngrx/store';
-import { Observable } from 'rxjs';
+import { createSelector, MemoizedSelector, select, Store } from '@ngrx/store';
 import {
   SearchFilterCollapseAction,
   SearchFilterDecrementPageAction,
@@ -63,8 +63,8 @@ export class SearchFilterService {
    */
   getSelectedValuesForFilter(filterConfig: SearchFilterConfig): Observable<string[]> {
     const values$ = this.routeService.getQueryParameterValues(filterConfig.paramName);
-    const prefixValues$ = this.routeService.getQueryParamsWithPrefix(filterConfig.paramName + '.').map((params: Params) => [].concat(...Object.values(params)));
-    return Observable.combineLatest(values$, prefixValues$, (values, prefixValues) => {
+    const prefixValues$ = this.routeService.getQueryParamsWithPrefix(filterConfig.paramName + '.').pipe(map((params: Params) => [].concat(...Object.values(params))));
+    return observableCombineLatest(values$, prefixValues$, (values, prefixValues) => {
       if (isNotEmpty(values)) {
         return values;
       }
@@ -78,14 +78,16 @@ export class SearchFilterService {
    * @returns {Observable<boolean>} Emits the current collapsed state of the given filter, if it's unavailable, return false
    */
   isCollapsed(filterName: string): Observable<boolean> {
-    return this.store.select(filterByNameSelector(filterName))
-      .map((object: SearchFilterState) => {
+    return this.store.pipe(
+      select(filterByNameSelector(filterName)),
+      map((object: SearchFilterState) => {
         if (object) {
           return object.filterCollapsed;
         } else {
           return false;
         }
-      });
+      })
+    );
   }
 
   /**
@@ -94,14 +96,15 @@ export class SearchFilterService {
    * @returns {Observable<boolean>} Emits the current page state of the given filter, if it's unavailable, return 1
    */
   getPage(filterName: string): Observable<number> {
-    return this.store.select(filterByNameSelector(filterName))
-      .map((object: SearchFilterState) => {
+    return this.store.pipe(
+      select(filterByNameSelector(filterName)),
+      map((object: SearchFilterState) => {
         if (object) {
           return object.page;
         } else {
           return 1;
         }
-      });
+      }));
   }
 
   /**
@@ -159,6 +162,7 @@ export class SearchFilterService {
   public incrementPage(filterName: string): void {
     this.store.dispatch(new SearchFilterIncrementPageAction(filterName));
   }
+
   /**
    * Dispatches a reset page action to the store for a given filter
    * @param {string} filterName The filter for which the action is dispatched

src/app/+search-page/search-filters/search-filter/search-range-filter/search-range-filter.component.ts

@@ -1,3 +1,5 @@
+import {of as observableOf, combineLatest as observableCombineLatest,  Observable ,  Subscription } from 'rxjs';
+import {startWith} from 'rxjs/operators';
 import { isPlatformBrowser } from '@angular/common';
 import { Component, Inject, OnDestroy, OnInit, PLATFORM_ID } from '@angular/core';
 import { RemoteDataBuildService } from '../../../../core/cache/builders/remote-data-build.service';
@@ -12,7 +14,6 @@ import { FILTER_CONFIG, SearchFilterService } from '../search-filter.service';
 import { SearchService } from '../../../search-service/search.service';
 import { Router } from '@angular/router';
 import * as moment from 'moment';
-import { Observable ,  Subscription } from 'rxjs';
 import { RouteService } from '../../../../shared/services/route.service';
 import { hasValue } from '../../../../shared/empty.util';
 import { SearchConfigurationService } from '../../../search-service/search-configuration.service';
@@ -79,9 +80,9 @@ export class SearchRangeFilterComponent extends SearchFacetFilterComponent imple
     super.ngOnInit();
     this.min = moment(this.filterConfig.minValue, dateFormats).year() || this.min;
     this.max = moment(this.filterConfig.maxValue, dateFormats).year() || this.max;
-    const iniMin = this.route.getQueryParameterValue(this.filterConfig.paramName + minSuffix).startWith(undefined);
-    const iniMax = this.route.getQueryParameterValue(this.filterConfig.paramName + maxSuffix).startWith(undefined);
-    this.sub = Observable.combineLatest(iniMin, iniMax, (min, max) => {
+    const iniMin = this.route.getQueryParameterValue(this.filterConfig.paramName + minSuffix).pipe(startWith(undefined));
+    const iniMax = this.route.getQueryParameterValue(this.filterConfig.paramName + maxSuffix).pipe(startWith(undefined));
+    this.sub = observableCombineLatest(iniMin, iniMax, (min, max) => {
       const minimum = hasValue(min) ? min : this.min;
       const maximum = hasValue(max) ? max : this.max;
       return [minimum, maximum]
@@ -97,7 +98,7 @@ export class SearchRangeFilterComponent extends SearchFacetFilterComponent imple
     const parts = value.split(rangeDelimiter);
     const min = parts.length > 1 ? parts[0].trim() : value;
     const max = parts.length > 1 ? parts[1].trim() : value;
-    return Observable.of(
+    return observableOf(
       {
         [this.filterConfig.paramName + minSuffix]: [min],
         [this.filterConfig.paramName + maxSuffix]: [max],

src/app/+search-page/search-filters/search-filters.component.ts

@@ -1,8 +1,10 @@
+import { Observable, of as observableOf } from 'rxjs';
+
+import { filter, map, mergeMap, startWith, switchMap } from 'rxjs/operators';
 import { Component } from '@angular/core';
 import { SearchService } from '../search-service/search.service';
 import { RemoteData } from '../../core/data/remote-data';
 import { SearchFilterConfig } from '../search-service/search-filter-config.model';
-import { Observable } from 'rxjs';
 import { SearchConfigurationService } from '../search-service/search-configuration.service';
 import { isNotEmpty } from '../../shared/empty.util';
 import { SearchFilterService } from './search-filter/search-filter.service';
@@ -37,10 +39,10 @@ export class SearchFiltersComponent {
    */
   constructor(private searchService: SearchService, private searchConfigService: SearchConfigurationService, private filterService: SearchFilterService) {
     this.filters = searchService.getConfig().pipe(getSucceededRemoteData());
-    this.clearParams = searchConfigService.getCurrentFrontendFilters().map((filters) => {
+    this.clearParams = searchConfigService.getCurrentFrontendFilters().pipe(map((filters) => {
       Object.keys(filters).forEach((f) => filters[f] = null);
       return filters;
-    });
+    }));
   }
 
   /**
@@ -55,23 +57,23 @@ export class SearchFiltersComponent {
    * @param {SearchFilterConfig} filter The filter to check for
    * @returns {Observable<boolean>} Emits true whenever a given filter config should be shown
    */
-  isActive(filter: SearchFilterConfig): Observable<boolean> {
+  isActive(filterConfig: SearchFilterConfig): Observable<boolean> {
     // console.log(filter.name);
-    return this.filterService.getSelectedValuesForFilter(filter)
-      .flatMap((isActive) => {
+    return this.filterService.getSelectedValuesForFilter(filterConfig).pipe(
+      mergeMap((isActive) => {
         if (isNotEmpty(isActive)) {
-          return Observable.of(true);
+          return observableOf(true);
         } else {
-          return this.searchConfigService.searchOptions
-            .switchMap((options) => {
-                return this.searchService.getFacetValuesFor(filter, 1, options)
-                  .filter((RD) => !RD.isLoading)
-                  .map((valuesRD) => {
+          return this.searchConfigService.searchOptions.pipe(
+            switchMap((options) => {
+                return this.searchService.getFacetValuesFor(filterConfig, 1, options).pipe(
+                  filter((RD) => !RD.isLoading),
+                  map((valuesRD) => {
                     return valuesRD.payload.totalElements > 0
-                  })
+                  }),)
               }
-            )
+            ))
         }
-      }).startWith(true);
+      }),startWith(true),);
   }
 }

src/app/+search-page/search-page.component.ts

@@ -1,6 +1,6 @@
 import { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
-import { Observable ,  Subscription ,  BehaviorSubject } from 'rxjs';
-import { flatMap, switchMap, } from 'rxjs/operators';
+import { BehaviorSubject, Observable, Subscription } from 'rxjs';
+import { switchMap, } from 'rxjs/operators';
 import { PaginatedList } from '../core/data/paginated-list';
 import { RemoteData } from '../core/data/remote-data';
 import { DSpaceObject } from '../core/shared/dspace-object.model';
@@ -76,8 +76,8 @@ export class SearchPageComponent implements OnInit {
    */
   ngOnInit(): void {
     this.searchOptions$ = this.searchConfigService.paginatedSearchOptions;
-    this.sub = this.searchOptions$
-      .switchMap((options) => this.service.search(options).pipe(getSucceededRemoteData()))
+    this.sub = this.searchOptions$.pipe(
+      switchMap((options) => this.service.search(options).pipe(getSucceededRemoteData())))
       .subscribe((results) => {
         this.resultsRD$.next(results);
       });

src/app/+search-page/search-service/search-configuration.service.ts

@@ -1,7 +1,8 @@
+import {of as observableOf, merge as observableMerge, combineLatest as observableCombineLatest,  Observable ,  BehaviorSubject ,  Subscription } from 'rxjs';
+import {filter, map} from 'rxjs/operators';
 import { SortDirection, SortOptions } from '../../core/cache/models/sort-options.model';
 import { PaginationComponentOptions } from '../../shared/pagination/pagination-component-options.model';
 import { SearchOptions } from '../search-options.model';
-import { Observable ,  BehaviorSubject ,  Subscription } from 'rxjs';
 import { ActivatedRoute, Params } from '@angular/router';
 import { PaginatedSearchOptions } from '../paginated-search-options.model';
 import { Injectable, OnDestroy } from '@angular/core';
@@ -85,27 +86,27 @@ export class SearchConfigurationService implements OnDestroy {
    * @returns {Observable<string>} Emits the current scope's identifier
    */
   getCurrentScope(defaultScope: string) {
-    return this.routeService.getQueryParameterValue('scope').map((scope) => {
+    return this.routeService.getQueryParameterValue('scope').pipe(map((scope) => {
       return scope || defaultScope;
-    });
+    }));
   }
 
   /**
    * @returns {Observable<string>} Emits the current query string
    */
   getCurrentQuery(defaultQuery: string) {
-    return this.routeService.getQueryParameterValue('query').map((query) => {
+    return this.routeService.getQueryParameterValue('query').pipe(map((query) => {
       return query || defaultQuery;
-    });
+    }));
   }
 
   /**
    * @returns {Observable<number>} Emits the current DSpaceObject type as a number
    */
   getCurrentDSOType(): Observable<DSpaceObjectType> {
-    return this.routeService.getQueryParameterValue('dsoType')
-      .filter((type) => hasValue(type) && hasValue(DSpaceObjectType[type.toUpperCase()]))
-      .map((type) => DSpaceObjectType[type.toUpperCase()]);
+    return this.routeService.getQueryParameterValue('dsoType').pipe(
+      filter((type) => hasValue(type) && hasValue(DSpaceObjectType[type.toUpperCase()])),
+      map((type) => DSpaceObjectType[type.toUpperCase()]),);
   }
 
   /**
@@ -114,7 +115,7 @@ export class SearchConfigurationService implements OnDestroy {
   getCurrentPagination(defaultPagination: PaginationComponentOptions): Observable<PaginationComponentOptions> {
     const page$ = this.routeService.getQueryParameterValue('page');
     const size$ = this.routeService.getQueryParameterValue('pageSize');
-    return Observable.combineLatest(page$, size$, (page, size) => {
+    return observableCombineLatest(page$, size$, (page, size) => {
       return Object.assign(new PaginationComponentOptions(), defaultPagination, {
         currentPage: page || defaultPagination.currentPage,
         pageSize: size || defaultPagination.pageSize
@@ -128,7 +129,7 @@ export class SearchConfigurationService implements OnDestroy {
   getCurrentSort(defaultSort: SortOptions): Observable<SortOptions> {
     const sortDirection$ = this.routeService.getQueryParameterValue('sortDirection');
     const sortField$ = this.routeService.getQueryParameterValue('sortField');
-    return Observable.combineLatest(sortDirection$, sortField$, (sortDirection, sortField) => {
+    return observableCombineLatest(sortDirection$, sortField$, (sortDirection, sortField) => {
         // Dirty fix because sometimes the observable value is null somehow
         sortField = this.route.snapshot.queryParamMap.get('sortField');
 
@@ -143,7 +144,7 @@ export class SearchConfigurationService implements OnDestroy {
    * @returns {Observable<Params>} Emits the current active filters with their values as they are sent to the backend
    */
   getCurrentFilters(): Observable<SearchFilter[]> {
-    return this.routeService.getQueryParamsWithPrefix('f.').map((filterParams) => {
+    return this.routeService.getQueryParamsWithPrefix('f.').pipe(map((filterParams) => {
       if (isNotEmpty(filterParams)) {
         const filters = [];
         Object.keys(filterParams).forEach((key) => {
@@ -161,7 +162,7 @@ export class SearchConfigurationService implements OnDestroy {
         return filters;
       }
       return [];
-    });
+    }));
   }
 
   /**
@@ -177,7 +178,7 @@ export class SearchConfigurationService implements OnDestroy {
    * @returns {Subscription} The subscription to unsubscribe from
    */
   subscribeToSearchOptions(defaults: SearchOptions): Subscription {
-    return Observable.merge(
+    return observableMerge(
       this.getScopePart(defaults.scope),
       this.getQueryPart(defaults.query),
       this.getDSOTypePart(),
@@ -195,7 +196,7 @@ export class SearchConfigurationService implements OnDestroy {
    * @returns {Subscription} The subscription to unsubscribe from
    */
   subscribeToPaginatedSearchOptions(defaults: PaginatedSearchOptions): Subscription {
-    return Observable.merge(
+    return observableMerge(
       this.getPaginationPart(defaults.pagination),
       this.getSortPart(defaults.sort),
       this.getScopePart(defaults.scope),
@@ -220,7 +221,7 @@ export class SearchConfigurationService implements OnDestroy {
         scope: this.defaultScope,
         query: this.defaultQuery
       });
-      this._defaults = Observable.of(new RemoteData(false, false, true, null, options));
+      this._defaults = observableOf(new RemoteData(false, false, true, null, options));
     }
     return this._defaults;
   }
@@ -238,53 +239,53 @@ export class SearchConfigurationService implements OnDestroy {
    * @returns {Observable<string>} Emits the current scope's identifier
    */
   private getScopePart(defaultScope: string): Observable<any> {
-    return this.getCurrentScope(defaultScope).map((scope) => {
+    return this.getCurrentScope(defaultScope).pipe(map((scope) => {
       return { scope }
-    });
+    }));
   }
 
   /**
    * @returns {Observable<string>} Emits the current query string as a partial SearchOptions object
    */
   private getQueryPart(defaultQuery: string): Observable<any> {
-    return this.getCurrentQuery(defaultQuery).map((query) => {
+    return this.getCurrentQuery(defaultQuery).pipe(map((query) => {
       return { query }
-    });
+    }));
   }
 
   /**
    * @returns {Observable<string>} Emits the current query string as a partial SearchOptions object
    */
   private getDSOTypePart(): Observable<any> {
-    return this.getCurrentDSOType().map((dsoType) => {
+    return this.getCurrentDSOType().pipe(map((dsoType) => {
       return { dsoType }
-    });
+    }));
   }
 
   /**
    * @returns {Observable<string>} Emits the current pagination settings as a partial SearchOptions object
    */
   private getPaginationPart(defaultPagination: PaginationComponentOptions): Observable<any> {
-    return this.getCurrentPagination(defaultPagination).map((pagination) => {
+    return this.getCurrentPagination(defaultPagination).pipe(map((pagination) => {
       return { pagination }
-    });
+    }));
   }
 
   /**
    * @returns {Observable<string>} Emits the current sorting settings as a partial SearchOptions object
    */
   private getSortPart(defaultSort: SortOptions): Observable<any> {
-    return this.getCurrentSort(defaultSort).map((sort) => {
+    return this.getCurrentSort(defaultSort).pipe(map((sort) => {
       return { sort }
-    });
+    }));
   }
 
   /**
    * @returns {Observable<Params>} Emits the current active filters as a partial SearchOptions object
    */
   private getFiltersPart(): Observable<any> {
-    return this.getCurrentFilters().map((filters) => {
+    return this.getCurrentFilters().pipe(map((filters) => {
       return { filters }
-    });
+    }));
   }
 }

src/app/+search-page/search-service/search.service.ts

@@ -1,3 +1,4 @@
+import {of as observableOf, combineLatest as observableCombineLatest,  Observable } from 'rxjs';
 import { Injectable, OnDestroy } from '@angular/core';
 import {
   ActivatedRoute,
@@ -6,7 +7,6 @@ import {
   Router,
   UrlSegmentGroup
 } from '@angular/router';
-import { Observable } from 'rxjs';
 import { flatMap, map, switchMap } from 'rxjs/operators';
 import { RemoteDataBuildService } from '../../core/cache/builders/remote-data-build.service';
 import {
@@ -122,7 +122,7 @@ export class SearchService implements OnDestroy {
     );
 
     // Create search results again with the correct dso objects linked to each result
-    const tDomainListObs = Observable.combineLatest(sqrObs, dsoObs, (sqr: SearchQueryResponse, dsos: RemoteData<DSpaceObject[]>) => {
+    const tDomainListObs = observableCombineLatest(sqrObs, dsoObs, (sqr: SearchQueryResponse, dsos: RemoteData<DSpaceObject[]>) => {
 
       return sqr.objects.map((object: NormalizedSearchResult, index: number) => {
         let co = DSpaceObject;
@@ -143,7 +143,7 @@ export class SearchService implements OnDestroy {
       map((response: FacetValueSuccessResponse) => response.pageInfo)
     );
 
-    const payloadObs = Observable.combineLatest(tDomainListObs, pageInfoObs, (tDomainList, pageInfo) => {
+    const payloadObs = observableCombineLatest(tDomainListObs, pageInfoObs, (tDomainList, pageInfo) => {
       return new PaginatedList(pageInfo, tDomainList);
     });
 
@@ -244,7 +244,7 @@ export class SearchService implements OnDestroy {
       map((response: FacetValueSuccessResponse) => response.pageInfo)
     );
 
-    const payloadObs = Observable.combineLatest(facetValueObs, pageInfoObs, (facetValue, pageInfo) => {
+    const payloadObs = observableCombineLatest(facetValueObs, pageInfoObs, (facetValue, pageInfo) => {
       return new PaginatedList(pageInfo, facetValue);
     });
 
@@ -272,12 +272,12 @@ export class SearchService implements OnDestroy {
       switchMap((dsoRD: RemoteData<DSpaceObject>) => {
           if (dsoRD.payload.type === ResourceType.Community) {
             const community: Community = dsoRD.payload as Community;
-            return Observable.combineLatest(community.subcommunities, community.collections, (subCommunities, collections) => {
+            return observableCombineLatest(community.subcommunities, community.collections, (subCommunities, collections) => {
               /*if this is a community, we also need to show the direct children*/
               return [community, ...subCommunities.payload.page, ...collections.payload.page]
             })
           } else {
-            return Observable.of([dsoRD.payload]);
+            return observableOf([dsoRD.payload]);
           }
         }
       ));
@@ -291,13 +291,13 @@ export class SearchService implements OnDestroy {
    * @returns {Observable<ViewMode>} The current view mode
    */
   getViewMode(): Observable<ViewMode> {
-    return this.route.queryParams.map((params) => {
+    return this.route.queryParams.pipe(map((params) => {
       if (isNotEmpty(params.view) && hasValue(params.view)) {
         return params.view;
       } else {
         return ViewMode.List;
       }
-    });
+    }));
   }
 
   /**

src/app/+search-page/search-sidebar/search-sidebar.effects.ts

@@ -1,5 +1,6 @@
+import { map, tap, filter } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
-import { Effect, Actions } from '@ngrx/effects'
+import { Effect, Actions, ofType } from '@ngrx/effects'
 import * as fromRouter from '@ngrx/router-store';
 
 import { SearchSidebarCollapseAction } from './search-sidebar.actions';
@@ -12,10 +13,14 @@ import { URLBaser } from '../../core/url-baser/url-baser';
 export class SearchSidebarEffects {
   private previousPath: string;
   @Effect() routeChange$ = this.actions$
-    .ofType(fromRouter.ROUTER_NAVIGATION)
-    .filter((action) => this.previousPath !== this.getBaseUrl(action))
-    .do((action) => {this.previousPath = this.getBaseUrl(action)})
-    .map(() => new SearchSidebarCollapseAction());
+    .pipe(
+      ofType(fromRouter.ROUTER_NAVIGATION),
+      filter((action) => this.previousPath !== this.getBaseUrl(action)),
+      tap((action) => {
+        this.previousPath = this.getBaseUrl(action)
+      }),
+      map(() => new SearchSidebarCollapseAction())
+    );
 
   constructor(private actions$: Actions) {
 

src/app/+search-page/search-sidebar/search-sidebar.service.ts

@@ -1,8 +1,8 @@
+import { combineLatest as observableCombineLatest, Observable } from 'rxjs';
 import { Injectable } from '@angular/core';
 import { SearchSidebarState } from './search-sidebar.reducer';
-import { createSelector, Store } from '@ngrx/store';
+import { createSelector, select, Store } from '@ngrx/store';
 import { SearchSidebarCollapseAction, SearchSidebarExpandAction } from './search-sidebar.actions';
-import { Observable } from 'rxjs';
 import { AppState } from '../../app.reducer';
 import { HostWindowService } from '../../shared/host-window.service';
 
@@ -26,7 +26,7 @@ export class SearchSidebarService {
 
   constructor(private store: Store<AppState>, private windowService: HostWindowService) {
     this.isXsOrSm$ = this.windowService.isXsOrSm();
-    this.isCollapsedInStore = this.store.select(sidebarCollapsedSelector);
+    this.isCollapsedInStore = this.store.pipe(select(sidebarCollapsedSelector));
   }
 
   /**
@@ -34,7 +34,7 @@ export class SearchSidebarService {
    * @returns {Observable<boolean>} Emits true if the user's screen size is mobile or when the state in the store is currently collapsed
    */
   get isCollapsed(): Observable<boolean> {
-    return Observable.combineLatest(
+    return observableCombineLatest(
       this.isXsOrSm$,
       this.isCollapsedInStore,
       (mobile, store) => mobile ? store : true);

src/app/app.component.ts

@@ -1,3 +1,4 @@
+import { filter, first, take } from 'rxjs/operators';
 import {
   AfterViewInit,
   ChangeDetectionStrategy,
@@ -9,7 +10,7 @@ import {
 } from '@angular/core';
 import { NavigationCancel, NavigationEnd, NavigationStart, Router } from '@angular/router';
 
-import { Store } from '@ngrx/store';
+import { select, Store } from '@ngrx/store';
 
 import { TranslateService } from '@ngx-translate/core';
 
@@ -62,10 +63,10 @@ export class AppComponent implements OnInit, AfterViewInit {
     this.dispatchWindowSize(this._window.nativeWindow.innerWidth, this._window.nativeWindow.innerHeight);
 
     // Whether is not authenticathed try to retrieve a possible stored auth token
-    this.store.select(isAuthenticated)
-      .take(1)
-      .filter((authenticated) => !authenticated)
-      .subscribe((authenticated) => this.authService.checkAuthenticationToken());
+    this.store.pipe(select(isAuthenticated),
+      first(),
+      filter((authenticated) => !authenticated)
+    ).subscribe((authenticated) => this.authService.checkAuthenticationToken());
 
   }
 

src/app/core/auth/auth-request.service.ts

@@ -1,4 +1,6 @@
-import { Observable, throwError as observableThrowError } from 'rxjs';
+import { Observable, of as observableOf, throwError as observableThrowError } from 'rxjs';
+
+import { distinctUntilChanged, filter, map, mergeMap, tap } from 'rxjs/operators';
 import { Inject, Injectable } from '@angular/core';
 import { HALEndpointService } from '../shared/hal-endpoint.service';
 import { ResponseCacheService } from '../cache/response-cache.service';
@@ -8,7 +10,7 @@ import { GlobalConfig } from '../../../config/global-config.interface';
 import { isNotEmpty } from '../../shared/empty.util';
 import { AuthGetRequest, AuthPostRequest, PostRequest, RestRequest } from '../data/request.models';
 import { ResponseCacheEntry } from '../cache/response-cache.reducer';
-import { AuthStatusResponse, ErrorResponse, RestResponse } from '../cache/response-cache.models';
+import { AuthStatusResponse, ErrorResponse } from '../cache/response-cache.models';
 import { HttpOptions } from '../dspace-rest-v2/dspace-rest-v2.service';
 
 @Injectable()
@@ -23,18 +25,18 @@ export class AuthRequestService {
   }
 
   protected fetchRequest(request: RestRequest): Observable<any> {
-    const [successResponse, errorResponse] = this.responseCache.get(request.href)
-      .map((entry: ResponseCacheEntry) => entry.response)
+    return this.responseCache.get(request.href).pipe(
+      map((entry: ResponseCacheEntry) => entry.response),
       // TODO to review when https://github.com/DSpace/dspace-angular/issues/217 will be fixed
-      .do(() => this.responseCache.remove(request.href))
-      .partition((response: RestResponse) => response.isSuccessful);
-    return Observable.merge(
-      errorResponse.flatMap((response: ErrorResponse) =>
-        observableThrowError(new Error(response.errorMessage))),
-      successResponse
-        .filter((response: AuthStatusResponse) => isNotEmpty(response))
-        .map((response: AuthStatusResponse) => response.response)
-        .distinctUntilChanged());
+      tap(() => this.responseCache.remove(request.href)),
+      mergeMap((response) => {
+        if (response.isSuccessful && isNotEmpty(response)) {
+            return observableOf((response as AuthStatusResponse).response);
+        } else if (!response.isSuccessful) {
+          return observableThrowError(new Error((response as ErrorResponse).errorMessage));
+        }
+      })
+    );
   }
 
   protected getEndpointByMethod(endpoint: string, method: string): string {
@@ -42,24 +44,24 @@ export class AuthRequestService {
   }
 
   public postToEndpoint(method: string, body: any, options?: HttpOptions): Observable<any> {
-    return this.halService.getEndpoint(this.linkName)
-      .filter((href: string) => isNotEmpty(href))
-      .map((endpointURL) => this.getEndpointByMethod(endpointURL, method))
-      .distinctUntilChanged()
-      .map((endpointURL: string) => new AuthPostRequest(this.requestService.generateRequestId(), endpointURL, body, options))
-      .do((request: PostRequest) => this.requestService.configure(request, true))
-      .flatMap((request: PostRequest) => this.fetchRequest(request))
-      .distinctUntilChanged();
+    return this.halService.getEndpoint(this.linkName).pipe(
+      filter((href: string) => isNotEmpty(href)),
+      map((endpointURL) => this.getEndpointByMethod(endpointURL, method)),
+      distinctUntilChanged(),
+      map((endpointURL: string) => new AuthPostRequest(this.requestService.generateRequestId(), endpointURL, body, options)),
+      tap((request: PostRequest) => this.requestService.configure(request, true)),
+      mergeMap((request: PostRequest) => this.fetchRequest(request)),
+      distinctUntilChanged());
   }
 
   public getRequest(method: string, options?: HttpOptions): Observable<any> {
-    return this.halService.getEndpoint(this.linkName)
-      .filter((href: string) => isNotEmpty(href))
-      .map((endpointURL) => this.getEndpointByMethod(endpointURL, method))
-      .distinctUntilChanged()
-      .map((endpointURL: string) => new AuthGetRequest(this.requestService.generateRequestId(), endpointURL, options))
-      .do((request: PostRequest) => this.requestService.configure(request, true))
-      .flatMap((request: PostRequest) => this.fetchRequest(request))
-      .distinctUntilChanged();
+    return this.halService.getEndpoint(this.linkName).pipe(
+      filter((href: string) => isNotEmpty(href)),
+      map((endpointURL) => this.getEndpointByMethod(endpointURL, method)),
+      distinctUntilChanged(),
+      map((endpointURL: string) => new AuthGetRequest(this.requestService.generateRequestId(), endpointURL, options)),
+      tap((request: PostRequest) => this.requestService.configure(request, true)),
+      mergeMap((request: PostRequest) => this.fetchRequest(request)),
+      distinctUntilChanged());
   }
 }

src/app/core/auth/auth.effects.ts

@@ -1,11 +1,11 @@
+import { of as observableOf, Observable } from 'rxjs';
+
+import { filter, debounceTime, switchMap, take, tap, catchError, map, first } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
 
 // import @ngrx
-import { Actions, Effect } from '@ngrx/effects';
-import { Action, Store } from '@ngrx/store';
-
-// import rxjs
-import { Observable } from 'rxjs';
+import { Actions, Effect, ofType } from '@ngrx/effects';
+import { Action, select, Store } from '@ngrx/store';
 
 // import services
 import { AuthService } from './auth.service';
@@ -43,112 +43,131 @@ export class AuthEffects {
    * @method authenticate
    */
   @Effect()
-  public authenticate$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.AUTHENTICATE)
-    .switchMap((action: AuthenticateAction) => {
-      return this.authService.authenticate(action.payload.email, action.payload.password)
-        .first()
-        .map((response: AuthStatus) => new AuthenticationSuccessAction(response.token))
-        .catch((error) => Observable.of(new AuthenticationErrorAction(error)));
-    });
+  public authenticate$: Observable<Action> = this.actions$.pipe(
+      ofType(AuthActionTypes.AUTHENTICATE),
+      switchMap((action: AuthenticateAction) => {
+        return this.authService.authenticate(action.payload.email, action.payload.password).pipe(
+          first(),
+          map((response: AuthStatus) => new AuthenticationSuccessAction(response.token)),
+          catchError((error) => observableOf(new AuthenticationErrorAction(error)))
+        );
+      })
+    );
 
   @Effect()
-  public authenticateSuccess$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.AUTHENTICATE_SUCCESS)
-    .do((action: AuthenticationSuccessAction) => this.authService.storeToken(action.payload))
-    .map((action: AuthenticationSuccessAction) => new AuthenticatedAction(action.payload));
+  public authenticateSuccess$: Observable<Action> = this.actions$.pipe(
+      ofType(AuthActionTypes.AUTHENTICATE_SUCCESS),
+      tap((action: AuthenticationSuccessAction) => this.authService.storeToken(action.payload)),
+      map((action: AuthenticationSuccessAction) => new AuthenticatedAction(action.payload))
+    );
 
   @Effect()
-  public authenticated$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.AUTHENTICATED)
-    .switchMap((action: AuthenticatedAction) => {
-      return this.authService.authenticatedUser(action.payload)
-        .map((user: Eperson) => new AuthenticatedSuccessAction((user !== null), action.payload, user))
-        .catch((error) => Observable.of(new AuthenticatedErrorAction(error)));
-    });
+  public authenticated$: Observable<Action> = this.actions$.pipe(
+      ofType(AuthActionTypes.AUTHENTICATED),
+      switchMap((action: AuthenticatedAction) => {
+        return this.authService.authenticatedUser(action.payload).pipe(
+          map((user: Eperson) => new AuthenticatedSuccessAction((user !== null), action.payload, user)),
+          catchError((error) => observableOf(new AuthenticatedErrorAction(error))),);
+      })
+    );
 
   // It means "reacts to this action but don't send another"
-  @Effect({dispatch: false})
-  public authenticatedError$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.AUTHENTICATED_ERROR)
-    .do((action: LogOutSuccessAction) => this.authService.removeToken());
+  @Effect({ dispatch: false })
+  public authenticatedError$: Observable<Action> = this.actions$.pipe(
+      ofType(AuthActionTypes.AUTHENTICATED_ERROR),
+      tap((action: LogOutSuccessAction) => this.authService.removeToken())
+    );
 
   @Effect()
-  public checkToken$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.CHECK_AUTHENTICATION_TOKEN)
-    .switchMap(() => {
-      return this.authService.hasValidAuthenticationToken()
-        .map((token: AuthTokenInfo) => new AuthenticatedAction(token))
-        .catch((error) => Observable.of(new CheckAuthenticationTokenErrorAction()));
-    });
+  public checkToken$: Observable<Action> = this.actions$.pipe(ofType(AuthActionTypes.CHECK_AUTHENTICATION_TOKEN),
+      switchMap(() => {
+        return this.authService.hasValidAuthenticationToken().pipe(
+          map((token: AuthTokenInfo) => new AuthenticatedAction(token)),
+          catchError((error) => observableOf(new CheckAuthenticationTokenErrorAction()))
+        );
+      })
+    );
 
   @Effect()
-  public createUser$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.REGISTRATION)
-    .debounceTime(500) // to remove when functionality is implemented
-    .switchMap((action: RegistrationAction) => {
-      return this.authService.create(action.payload)
-        .map((user: Eperson) => new RegistrationSuccessAction(user))
-        .catch((error) => Observable.of(new RegistrationErrorAction(error)));
-    });
+  public createUser$: Observable<Action> = this.actions$.pipe(
+      ofType(AuthActionTypes.REGISTRATION),
+      debounceTime(500), // to remove when functionality is implemented
+      switchMap((action: RegistrationAction) => {
+        return this.authService.create(action.payload).pipe(
+          map((user: Eperson) => new RegistrationSuccessAction(user)),
+          catchError((error) => observableOf(new RegistrationErrorAction(error)))
+        );
+      })
+    );
 
   @Effect()
-  public refreshToken$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.REFRESH_TOKEN)
-    .switchMap((action: RefreshTokenAction) => {
-      return this.authService.refreshAuthenticationToken(action.payload)
-        .map((token: AuthTokenInfo) => new RefreshTokenSuccessAction(token))
-        .catch((error) => Observable.of(new RefreshTokenErrorAction()));
-    });
+  public refreshToken$: Observable<Action> = this.actions$.pipe(ofType(AuthActionTypes.REFRESH_TOKEN),
+      switchMap((action: RefreshTokenAction) => {
+        return this.authService.refreshAuthenticationToken(action.payload).pipe(
+          map((token: AuthTokenInfo) => new RefreshTokenSuccessAction(token)),
+          catchError((error) => observableOf(new RefreshTokenErrorAction()))
+        );
+      })
+    );
 
   // It means "reacts to this action but don't send another"
-  @Effect({dispatch: false})
-  public refreshTokenSuccess$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.REFRESH_TOKEN_SUCCESS)
-    .do((action: RefreshTokenSuccessAction) => this.authService.replaceToken(action.payload));
+  @Effect({ dispatch: false })
+  public refreshTokenSuccess$: Observable<Action> = this.actions$.pipe(
+      ofType(AuthActionTypes.REFRESH_TOKEN_SUCCESS),
+      tap((action: RefreshTokenSuccessAction) => this.authService.replaceToken(action.payload))
+    );
 
   /**
    * When the store is rehydrated in the browser,
    * clear a possible invalid token or authentication errors
    */
-  @Effect({dispatch: false})
-  public clearInvalidTokenOnRehydrate$: Observable<any> = this.actions$
-    .ofType(StoreActionTypes.REHYDRATE)
-    .switchMap(() => {
-      return this.store.select(isAuthenticated)
-        .take(1)
-        .filter((authenticated) => !authenticated)
-        .do(() => this.authService.removeToken())
-        .do(() => this.authService.resetAuthenticationError());
-    });
+  @Effect({ dispatch: false })
+  public clearInvalidTokenOnRehydrate$: Observable<any> = this.actions$.pipe(
+    ofType(StoreActionTypes.REHYDRATE),
+    switchMap(() => {
+      return this.store.pipe(
+        select(isAuthenticated),
+        first(),
+        filter((authenticated) => !authenticated),
+        tap(() => this.authService.removeToken()),
+        tap(() => this.authService.resetAuthenticationError())
+      );
+    }));
 
   @Effect()
   public logOut$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.LOG_OUT)
-    .switchMap(() => {
-      return this.authService.logout()
-        .map((value) => new LogOutSuccessAction())
-        .catch((error) => Observable.of(new LogOutErrorAction(error)));
-    });
+    .pipe(
+      ofType(AuthActionTypes.LOG_OUT),
+      switchMap(() => {
+        return this.authService.logout().pipe(
+          map((value) => new LogOutSuccessAction()),
+          catchError((error) => observableOf(new LogOutErrorAction(error)))
+        );
+      })
+    );
 
-  @Effect({dispatch: false})
+  @Effect({ dispatch: false })
   public logOutSuccess$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.LOG_OUT_SUCCESS)
-    .do(() => this.authService.removeToken())
-    .do(() => this.authService.clearRedirectUrl())
-    .do(() => this.authService.refreshAfterLogout());
+    .pipe(ofType(AuthActionTypes.LOG_OUT_SUCCESS),
+      tap(() => this.authService.removeToken()),
+      tap(() => this.authService.clearRedirectUrl()),
+      tap(() => this.authService.refreshAfterLogout())
+    );
 
-  @Effect({dispatch: false})
+  @Effect({ dispatch: false })
   public redirectToLogin$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.REDIRECT_AUTHENTICATION_REQUIRED)
-    .do(() => this.authService.removeToken())
-    .do(() => this.authService.redirectToLogin());
+    .pipe(ofType(AuthActionTypes.REDIRECT_AUTHENTICATION_REQUIRED),
+      tap(() => this.authService.removeToken()),
+      tap(() => this.authService.redirectToLogin())
+    );
 
-  @Effect({dispatch: false})
+  @Effect({ dispatch: false })
   public redirectToLoginTokenExpired$: Observable<Action> = this.actions$
-    .ofType(AuthActionTypes.REDIRECT_TOKEN_EXPIRED)
-    .do(() => this.authService.removeToken())
-    .do(() => this.authService.redirectToLoginWhenTokenExpired());
+    .pipe(
+      ofType(AuthActionTypes.REDIRECT_TOKEN_EXPIRED),
+      tap(() => this.authService.removeToken()),
+      tap(() => this.authService.redirectToLoginWhenTokenExpired())
+    );
 
   /**
    * @constructor

src/app/core/auth/auth.interceptor.ts

@@ -1,10 +1,20 @@
+import { of as observableOf, throwError as observableThrowError } from 'rxjs';
 
-import {throwError as observableThrowError,  Observable } from 'rxjs';
+import { catchError, filter, map } from 'rxjs/operators';
 import { Injectable, Injector } from '@angular/core';
 import {
-  HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpResponse,
-  HttpErrorResponse, HttpResponseBase
+  HttpErrorResponse,
+  HttpEvent,
+  HttpHandler,
+  HttpInterceptor,
+  HttpRequest,
+  HttpResponse,
+  HttpResponseBase
 } from '@angular/common/http';
+
+import { Observable } from 'rxjs';
+
+
 import { find } from 'lodash';
 
 import { AppState } from '../../app.reducer';
@@ -76,11 +86,11 @@ export class AuthInterceptor implements HttpInterceptor {
       // The access token is expired
       // Redirect to the login route
       this.store.dispatch(new RedirectWhenTokenExpiredAction('auth.messages.expired'));
-      return Observable.of(null);
+      return observableOf(null);
     } else if (!this.isAuthRequest(req) && isNotEmpty(token)) {
       // Intercept a request that is not to the authentication endpoint
-      authService.isTokenExpiring()
-        .filter((isExpiring) => isExpiring)
+      authService.isTokenExpiring().pipe(
+        filter((isExpiring) => isExpiring))
         .subscribe(() => {
           // If the current request url is already in the refresh token request list, skip it
           if (isUndefined(find(this.refreshTokenRequestUrls, req.url))) {
@@ -98,8 +108,8 @@ export class AuthInterceptor implements HttpInterceptor {
     }
 
     // Pass on the new request instead of the original request.
-    return next.handle(newReq)
-      .map((response) => {
+    return next.handle(newReq).pipe(
+      map((response) => {
         // Intercept a Login/Logout response
         if (response instanceof HttpResponse && this.isSuccess(response) && (this.isLoginResponse(response) || this.isLogoutResponse(response))) {
           // It's a success Login/Logout response
@@ -119,8 +129,8 @@ export class AuthInterceptor implements HttpInterceptor {
         } else {
           return response;
         }
-      })
-      .catch((error, caught) => {
+      }),
+      catchError((error, caught) => {
         // Intercept an error response
         if (error instanceof HttpErrorResponse) {
           // Checks if is a response from a request to an authentication endpoint
@@ -135,7 +145,7 @@ export class AuthInterceptor implements HttpInterceptor {
               statusText: error.statusText,
               url: error.url
             });
-            return Observable.of(authResponse);
+            return observableOf(authResponse);
           } else if (this.isUnauthorized(error)) {
             // The access token provided is expired, revoked, malformed, or invalid for other reasons
             // Redirect to the login route
@@ -144,7 +154,6 @@ export class AuthInterceptor implements HttpInterceptor {
         }
         // Return error response as is.
         return observableThrowError(error);
-      }) as any;
-
+      })) as any;
   }
 }

src/app/core/auth/auth.service.ts

@@ -1,13 +1,21 @@
+import { of as observableOf, Observable } from 'rxjs';
+import {
+  take,
+  filter,
+  startWith,
+  first,
+  distinctUntilChanged,
+  map,
+  withLatestFrom
+} from 'rxjs/operators';
 import { Inject, Injectable } from '@angular/core';
 import { PRIMARY_OUTLET, Router, UrlSegmentGroup, UrlTree } from '@angular/router';
 import { HttpHeaders } from '@angular/common/http';
 import { REQUEST } from '@nguniversal/express-engine/tokens';
 
 import { RouterReducerState } from '@ngrx/router-store';
-import { Store } from '@ngrx/store';
+import { select, Store } from '@ngrx/store';
 import { CookieAttributes } from 'js-cookie';
-import { Observable } from 'rxjs';
-import { map, withLatestFrom } from 'rxjs/operators';
 
 import { Eperson } from '../eperson/models/eperson.model';
 import { AuthRequestService } from './auth-request.service';
@@ -17,7 +25,12 @@ import { AuthStatus } from './models/auth-status.model';
 import { AuthTokenInfo, TOKENITEM } from './models/auth-token-info.model';
 import { isEmpty, isNotEmpty, isNotNull, isNotUndefined } from '../../shared/empty.util';
 import { CookieService } from '../../shared/services/cookie.service';
-import { getAuthenticationToken, getRedirectUrl, isAuthenticated, isTokenRefreshing } from './selectors';
+import {
+  getAuthenticationToken,
+  getRedirectUrl,
+  isAuthenticated,
+  isTokenRefreshing
+} from './selectors';
 import { AppState, routerStateSelector } from '../../app.reducer';
 import { ResetAuthenticationMessagesAction, SetRedirectUrlAction } from './auth.actions';
 import { NativeWindowRef, NativeWindowService } from '../../shared/services/window.service';
@@ -46,21 +59,24 @@ export class AuthService {
               protected router: Router,
               protected storage: CookieService,
               protected store: Store<AppState>) {
-    this.store.select(isAuthenticated)
-      .startWith(false)
-      .subscribe((authenticated: boolean) => this._authenticated = authenticated);
+    this.store.pipe(
+      select(isAuthenticated),
+      startWith(false)
+    ).subscribe((authenticated: boolean) => this._authenticated = authenticated);
 
     // If current route is different from the one setted in authentication guard
     // and is not the login route, clear redirect url and messages
-    const routeUrl$ = this.store.select(routerStateSelector)
-      .filter((routerState: RouterReducerState) => isNotUndefined(routerState) && isNotUndefined(routerState.state))
-      .filter((routerState: RouterReducerState) => !this.isLoginRoute(routerState.state.url))
-      .map((routerState: RouterReducerState) => routerState.state.url);
-    const redirectUrl$ = this.store.select(getRedirectUrl).distinctUntilChanged();
+    const routeUrl$ = this.store.pipe(
+      select(routerStateSelector),
+      filter((routerState: RouterReducerState) => isNotUndefined(routerState) && isNotUndefined(routerState.state)),
+      filter((routerState: RouterReducerState) => !this.isLoginRoute(routerState.state.url)),
+      map((routerState: RouterReducerState) => routerState.state.url)
+    );
+    const redirectUrl$ = this.store.pipe(select(getRedirectUrl), distinctUntilChanged());
     routeUrl$.pipe(
       withLatestFrom(redirectUrl$),
       map(([routeUrl, redirectUrl]) => [routeUrl, redirectUrl])
-    ).filter(([routeUrl, redirectUrl]) => isNotEmpty(redirectUrl) && (routeUrl !== redirectUrl))
+    ).pipe(filter(([routeUrl, redirectUrl]) => isNotEmpty(redirectUrl) && (routeUrl !== redirectUrl)))
       .subscribe(() => {
         this.clearRedirectUrl();
       });
@@ -93,14 +109,14 @@ export class AuthService {
     let headers = new HttpHeaders();
     headers = headers.append('Content-Type', 'application/x-www-form-urlencoded');
     options.headers = headers;
-    return this.authRequestService.postToEndpoint('login', body, options)
-      .map((status: AuthStatus) => {
+    return this.authRequestService.postToEndpoint('login', body, options).pipe(
+      map((status: AuthStatus) => {
         if (status.authenticated) {
           return status;
         } else {
           throw(new Error('Invalid email or password'));
         }
-      })
+      }))
 
   }
 
@@ -109,7 +125,7 @@ export class AuthService {
    * @returns {Observable<boolean>}
    */
   public isAuthenticated(): Observable<boolean> {
-    return this.store.select(isAuthenticated);
+    return this.store.pipe(select(isAuthenticated));
   }
 
   /**
@@ -123,14 +139,14 @@ export class AuthService {
     headers = headers.append('Accept', 'application/json');
     headers = headers.append('Authorization', `Bearer ${token.accessToken}`);
     options.headers = headers;
-    return this.authRequestService.getRequest('status', options)
-      .map((status: AuthStatus) => {
+    return this.authRequestService.getRequest('status', options).pipe(
+      map((status: AuthStatus) => {
         if (status.authenticated) {
           return status.eperson[0];
         } else {
           throw(new Error('Not authenticated'));
         }
-      });
+      }));
   }
 
   /**
@@ -144,9 +160,10 @@ export class AuthService {
    * Checks if token is present into storage and is not expired
    */
   public hasValidAuthenticationToken(): Observable<AuthTokenInfo> {
-    return this.store.select(getAuthenticationToken)
-      .take(1)
-      .map((authTokenInfo: AuthTokenInfo) => {
+    return this.store.pipe(
+      select(getAuthenticationToken),
+      take(1),
+      map((authTokenInfo: AuthTokenInfo) => {
         let token: AuthTokenInfo;
         // Retrieve authentication token info and check if is valid
         token = isNotEmpty(authTokenInfo) ? authTokenInfo : this.storage.get(TOKENITEM);
@@ -155,7 +172,8 @@ export class AuthService {
         } else {
           throw false;
         }
-      });
+      })
+    );
   }
 
   /**
@@ -167,14 +185,14 @@ export class AuthService {
     headers = headers.append('Accept', 'application/json');
     headers = headers.append('Authorization', `Bearer ${token.accessToken}`);
     options.headers = headers;
-    return this.authRequestService.postToEndpoint('login', {}, options)
-      .map((status: AuthStatus) => {
+    return this.authRequestService.postToEndpoint('login', {}, options).pipe(
+      map((status: AuthStatus) => {
         if (status.authenticated) {
           return status.token;
         } else {
           throw(new Error('Not authenticated'));
         }
-      });
+      }));
   }
 
   /**
@@ -193,7 +211,7 @@ export class AuthService {
     // details and then return the new user object
     // but, let's just return the new user for this example.
     // this._authenticated = true;
-    return Observable.of(user);
+    return observableOf(user);
   }
 
   /**
@@ -204,15 +222,15 @@ export class AuthService {
     // Send a request that sign end the session
     let headers = new HttpHeaders();
     headers = headers.append('Content-Type', 'application/x-www-form-urlencoded');
-    const options: HttpOptions = Object.create({headers, responseType: 'text'});
-    return this.authRequestService.getRequest('logout', options)
-      .map((status: AuthStatus) => {
+    const options: HttpOptions = Object.create({ headers, responseType: 'text' });
+    return this.authRequestService.getRequest('logout', options).pipe(
+      map((status: AuthStatus) => {
         if (!status.authenticated) {
           return true;
         } else {
           throw(new Error('auth.errors.invalid-user'));
         }
-      })
+      }))
 
   }
 
@@ -233,7 +251,7 @@ export class AuthService {
    */
   public getToken(): AuthTokenInfo {
     let token: AuthTokenInfo;
-    this.store.select(getAuthenticationToken)
+    this.store.pipe(select(getAuthenticationToken))
       .subscribe((authTokenInfo: AuthTokenInfo) => {
         // Retrieve authentication token info and check if is valid
         token = authTokenInfo || null;
@@ -246,9 +264,10 @@ export class AuthService {
    * @returns {boolean}
    */
   public isTokenExpiring(): Observable<boolean> {
-    return this.store.select(isTokenRefreshing)
-      .first()
-      .map((isRefreshing: boolean) => {
+    return this.store.pipe(
+      select(isTokenRefreshing),
+      first(),
+      map((isRefreshing: boolean) => {
         if (this.isTokenExpired() || isRefreshing) {
           return false;
         } else {
@@ -256,6 +275,7 @@ export class AuthService {
           return token.expires - (60 * 5 * 1000) < Date.now();
         }
       })
+    )
   }
 
   /**
@@ -279,7 +299,7 @@ export class AuthService {
 
     // Set the cookie expire date
     const expires = new Date(expireDate);
-    const options: CookieAttributes = {expires: expires};
+    const options: CookieAttributes = { expires: expires };
 
     // Save cookie with the token
     return this.storage.set(TOKENITEM, token, options);
@@ -324,8 +344,8 @@ export class AuthService {
    * Redirect to the route navigated before the login
    */
   public redirectToPreviousUrl() {
-    this.getRedirectUrl()
-      .first()
+    this.getRedirectUrl().pipe(
+      first())
       .subscribe((redirectUrl) => {
         if (isNotEmpty(redirectUrl)) {
           this.clearRedirectUrl();
@@ -359,9 +379,9 @@ export class AuthService {
   getRedirectUrl(): Observable<string> {
     const redirectUrl = this.storage.get(REDIRECT_COOKIE);
     if (isNotEmpty(redirectUrl)) {
-      return Observable.of(redirectUrl);
+      return observableOf(redirectUrl);
     } else {
-      return this.store.select(getRedirectUrl);
+      return this.store.pipe(select(getRedirectUrl));
     }
   }
 
@@ -374,7 +394,7 @@ export class AuthService {
 
     // Set the cookie expire date
     const expires = new Date(expireDate);
-    const options: CookieAttributes = {expires: expires};
+    const options: CookieAttributes = { expires: expires };
     this.storage.set(REDIRECT_COOKIE, url, options);
     this.store.dispatch(new SetRedirectUrlAction(isNotUndefined(url) ? url : ''));
   }

src/app/core/auth/authenticated.guard.ts

@@ -1,8 +1,10 @@
+
+import {take} from 'rxjs/operators';
 import { Injectable } from '@angular/core';
 import { ActivatedRouteSnapshot, CanActivate, CanLoad, Route, Router, RouterStateSnapshot } from '@angular/router';
 
 import { Observable } from 'rxjs';
-import { Store } from '@ngrx/store';
+import { select, Store } from '@ngrx/store';
 
 // reducers
 import { CoreState } from '../core.reducers';
@@ -52,12 +54,12 @@ export class AuthenticatedGuard implements CanActivate, CanLoad {
 
   private handleAuth(url: string): Observable<boolean> {
     // get observable
-    const observable = this.store.select(isAuthenticated);
+    const observable = this.store.pipe(select(isAuthenticated));
 
     // redirect to sign in page if user is not authenticated
-    observable
+    observable.pipe(
       // .filter(() => isEmpty(this.router.routerState.snapshot.url) || this.router.routerState.snapshot.url === url)
-      .take(1)
+      take(1))
       .subscribe((authenticated) => {
         if (!authenticated) {
           this.authService.setRedirectUrl(url);

src/app/core/auth/server-auth.service.ts

@@ -1,3 +1,5 @@
+
+import {first, map} from 'rxjs/operators';
 import { Injectable } from '@angular/core';
 
 import { Observable } from 'rxjs';
@@ -32,14 +34,14 @@ export class ServerAuthService extends AuthService {
     headers = headers.append('X-Forwarded-For', clientIp);
 
     options.headers = headers;
-    return this.authRequestService.getRequest('status', options)
-      .map((status: AuthStatus) => {
+    return this.authRequestService.getRequest('status', options).pipe(
+      map((status: AuthStatus) => {
         if (status.authenticated) {
           return status.eperson[0];
         } else {
           throw(new Error('Not authenticated'));
         }
-      });
+      }));
   }
 
   /**
@@ -53,8 +55,8 @@ export class ServerAuthService extends AuthService {
    * Redirect to the route navigated before the login
    */
   public redirectToPreviousUrl() {
-    this.getRedirectUrl()
-      .first()
+    this.getRedirectUrl().pipe(
+      first())
       .subscribe((redirectUrl) => {
         if (isNotEmpty(redirectUrl)) {
           // override the route reuse strategy

src/app/core/cache/builders/remote-data-build.service.ts

@@ -1,5 +1,6 @@
+
+import {combineLatest as observableCombineLatest, of as observableOf, Observable, race as observableRace } from 'rxjs';
 import { Injectable } from '@angular/core';
-import { Observable } from 'rxjs';
 import { distinctUntilChanged, flatMap, map, startWith } from 'rxjs/operators';
 import { hasValue, hasValueOperator, isEmpty, isNotEmpty } from '../../../shared/empty.util';
 import { PaginatedList } from '../../data/paginated-list';
@@ -32,24 +33,24 @@ export class RemoteDataBuildService {
 
   buildSingle<TNormalized extends NormalizedObject, TDomain>(href$: string | Observable<string>): Observable<RemoteData<TDomain>> {
     if (typeof href$ === 'string') {
-      href$ = Observable.of(href$);
+      href$ = observableOf(href$);
     }
     const requestHref$ = href$.pipe(flatMap((href: string) =>
       this.objectCache.getRequestHrefBySelfLink(href)));
 
-    const requestEntry$ = Observable.race(
+    const requestEntry$ = observableRace(
       href$.pipe(getRequestFromSelflink(this.requestService)),
       requestHref$.pipe(getRequestFromSelflink(this.requestService))
     );
 
-    const responseCache$ = Observable.race(
+    const responseCache$ = observableRace(
       href$.pipe(getResponseFromSelflink(this.responseCache)),
       requestHref$.pipe(getResponseFromSelflink(this.responseCache))
     );
 
     // always use self link if that is cached, only if it isn't, get it via the response.
     const payload$ =
-      Observable.combineLatest(
+      observableCombineLatest(
         href$.pipe(
           flatMap((href: string) => this.objectCache.getBySelfLink<TNormalized>(href)),
           startWith(undefined)
@@ -60,7 +61,7 @@ export class RemoteDataBuildService {
             if (isNotEmpty(resourceSelfLinks)) {
               return this.objectCache.getBySelfLink(resourceSelfLinks[0]);
             } else {
-              return Observable.of(undefined);
+              return observableOf(undefined);
             }
           }),
           distinctUntilChanged(),
@@ -85,7 +86,7 @@ export class RemoteDataBuildService {
   }
 
   toRemoteDataObservable<T>(requestEntry$: Observable<RequestEntry>, responseCache$: Observable<ResponseCacheEntry>, payload$: Observable<T>) {
-    return Observable.combineLatest(requestEntry$, responseCache$.startWith(undefined), payload$,
+    return observableCombineLatest(requestEntry$, responseCache$.pipe(startWith(undefined)), payload$,
       (reqEntry: RequestEntry, resEntry: ResponseCacheEntry, payload: T) => {
         const requestPending = hasValue(reqEntry.requestPending) ? reqEntry.requestPending : true;
         const responsePending = hasValue(reqEntry.responsePending) ? reqEntry.responsePending : false;
@@ -110,7 +111,7 @@ export class RemoteDataBuildService {
 
   buildList<TNormalized extends NormalizedObject, TDomain>(href$: string | Observable<string>): Observable<RemoteData<PaginatedList<TDomain>>> {
     if (typeof href$ === 'string') {
-      href$ = Observable.of(href$);
+      href$ = observableOf(href$);
     }
 
     const requestEntry$ = href$.pipe(getRequestFromSelflink(this.requestService));
@@ -119,12 +120,12 @@ export class RemoteDataBuildService {
     const tDomainList$ = responseCache$.pipe(
       getResourceLinksFromResponse(),
       flatMap((resourceUUIDs: string[]) => {
-        return this.objectCache.getList(resourceUUIDs)
-          .map((normList: TNormalized[]) => {
+        return this.objectCache.getList(resourceUUIDs).pipe(
+          map((normList: TNormalized[]) => {
             return normList.map((normalized: TNormalized) => {
               return this.build<TNormalized, TDomain>(normalized);
             });
-          });
+          }));
       }),
       startWith([]),
       distinctUntilChanged()
@@ -144,7 +145,7 @@ export class RemoteDataBuildService {
       })
   );
 
-    const payload$ = Observable.combineLatest(tDomainList$, pageInfo$, (tDomainList, pageInfo) => {
+    const payload$ = observableCombineLatest(tDomainList$, pageInfo$, (tDomainList, pageInfo) => {
       return new PaginatedList(pageInfo, tDomainList);
     });
 
@@ -204,10 +205,10 @@ export class RemoteDataBuildService {
   aggregate<T>(input: Array<Observable<RemoteData<T>>>): Observable<RemoteData<T[]>> {
 
     if (isEmpty(input)) {
-      return Observable.of(new RemoteData(false, false, true, null, []));
+      return observableOf(new RemoteData(false, false, true, null, []));
     }
 
-    return Observable.combineLatest(
+    return observableCombineLatest(
       ...input,
       (...arr: Array<RemoteData<T>>) => {
         const requestPending: boolean = arr
@@ -255,7 +256,7 @@ export class RemoteDataBuildService {
   }
 
   aggregatePaginatedList<T>(input: Observable<RemoteData<T[]>>, pageInfo: PageInfo): Observable<RemoteData<PaginatedList<T>>> {
-    return input.map((rd) => Object.assign(rd, {payload: new PaginatedList(pageInfo, rd.payload)}));
+    return input.pipe(map((rd) => Object.assign(rd, {payload: new PaginatedList(pageInfo, rd.payload)})));
   }
 
 }

src/app/core/cache/object-cache.effects.ts

@@ -1,5 +1,6 @@
+import { map } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
-import { Actions, Effect } from '@ngrx/effects';
+import { Actions, Effect, ofType } from '@ngrx/effects';
 
 import { StoreActionTypes } from '../../store.actions';
 import { ResetObjectCacheTimestampsAction } from './object-cache.actions';
@@ -16,9 +17,11 @@ export class ObjectCacheEffects {
    * time ago, and will likely need to be revisited later
    */
   @Effect() fixTimestampsOnRehydrate = this.actions$
-    .ofType(StoreActionTypes.REHYDRATE)
-    .map(() => new ResetObjectCacheTimestampsAction(new Date().getTime()));
+    .pipe(ofType(StoreActionTypes.REHYDRATE),
+      map(() => new ResetObjectCacheTimestampsAction(new Date().getTime()))
+    );
 
-  constructor(private actions$: Actions) { }
+  constructor(private actions$: Actions) {
+  }
 
 }

src/app/core/cache/object-cache.service.ts

@@ -1,16 +1,16 @@
-import { Injectable } from '@angular/core';
-import { MemoizedSelector, Store } from '@ngrx/store';
+import { combineLatest as observableCombineLatest, Observable } from 'rxjs';
 
-import { Observable } from 'rxjs';
+import { distinctUntilChanged, filter, first, map, mergeMap, take } from 'rxjs/operators';
+import { Injectable } from '@angular/core';
+import { MemoizedSelector, select, Store } from '@ngrx/store';
 import { IndexName } from '../index/index.reducer';
 
-import { ObjectCacheEntry, CacheableObject } from './object-cache.reducer';
+import { CacheableObject, ObjectCacheEntry } from './object-cache.reducer';
 import { AddToObjectCacheAction, RemoveFromObjectCacheAction } from './object-cache.actions';
 import { hasNoValue } from '../../shared/empty.util';
 import { GenericConstructor } from '../shared/generic-constructor';
 import { coreSelector, CoreState } from '../core.reducers';
 import { pathSelector } from '../shared/selectors';
-import { Item } from '../shared/item.model';
 import { NormalizedObjectFactory } from './models/normalized-object-factory';
 import { NormalizedObject } from './models/normalized-object.model';
 
@@ -73,33 +73,40 @@ export class ObjectCacheService {
    *    An observable of the requested object
    */
   getByUUID<T extends NormalizedObject>(uuid: string): Observable<T> {
-    return this.store.select(selfLinkFromUuidSelector(uuid))
-      .flatMap((selfLink: string) => this.getBySelfLink(selfLink))
+    return this.store.pipe(
+      select(selfLinkFromUuidSelector(uuid)),
+      mergeMap((selfLink: string) => this.getBySelfLink(selfLink)
+      )
+    )
   }
 
   getBySelfLink<T extends NormalizedObject>(selfLink: string): Observable<T> {
-    return this.getEntry(selfLink)
-      .map((entry: ObjectCacheEntry) => {
-        const type: GenericConstructor<NormalizedObject>= NormalizedObjectFactory.getConstructor(entry.data.type);
+    return this.getEntry(selfLink).pipe(
+      map((entry: ObjectCacheEntry) => {
+        const type: GenericConstructor<NormalizedObject> = NormalizedObjectFactory.getConstructor(entry.data.type);
         return Object.assign(new type(), entry.data) as T
-      });
+      }));
   }
 
   private getEntry(selfLink: string): Observable<ObjectCacheEntry> {
-    return this.store.select(entryFromSelfLinkSelector(selfLink))
-      .filter((entry) => this.isValid(entry))
-      .distinctUntilChanged();
+    return this.store.pipe(
+      select(entryFromSelfLinkSelector(selfLink)),
+      filter((entry) => this.isValid(entry)),
+      distinctUntilChanged()
+    );
   }
 
   getRequestHrefBySelfLink(selfLink: string): Observable<string> {
-    return this.getEntry(selfLink)
-      .map((entry: ObjectCacheEntry) => entry.requestHref)
-      .distinctUntilChanged();
+    return this.getEntry(selfLink).pipe(
+      map((entry: ObjectCacheEntry) => entry.requestHref),
+      distinctUntilChanged(),);
   }
 
   getRequestHrefByUUID(uuid: string): Observable<string> {
-    return this.store.select(selfLinkFromUuidSelector(uuid))
-      .flatMap((selfLink: string) => this.getRequestHrefBySelfLink(selfLink));
+    return this.store.pipe(
+      select(selfLinkFromUuidSelector(uuid)),
+      mergeMap((selfLink: string) => this.getRequestHrefBySelfLink(selfLink))
+    );
   }
 
   /**
@@ -122,7 +129,7 @@ export class ObjectCacheService {
    * @return Observable<Array<T>>
    */
   getList<T extends NormalizedObject>(selfLinks: string[]): Observable<T[]> {
-    return Observable.combineLatest(
+    return observableCombineLatest(
       selfLinks.map((selfLink: string) => this.getBySelfLink<T>(selfLink))
     );
   }
@@ -139,9 +146,10 @@ export class ObjectCacheService {
   hasByUUID(uuid: string): boolean {
     let result: boolean;
 
-    this.store.select(selfLinkFromUuidSelector(uuid))
-      .take(1)
-      .subscribe((selfLink: string) => result = this.hasBySelfLink(selfLink));
+    this.store.pipe(
+      select(selfLinkFromUuidSelector(uuid)),
+      first()
+    ).subscribe((selfLink: string) => result = this.hasBySelfLink(selfLink));
 
     return result;
   }
@@ -158,9 +166,9 @@ export class ObjectCacheService {
   hasBySelfLink(selfLink: string): boolean {
     let result = false;
 
-    this.store.select(entryFromSelfLinkSelector(selfLink))
-      .take(1)
-      .subscribe((entry: ObjectCacheEntry) => result = this.isValid(entry));
+    this.store.pipe(select(entryFromSelfLinkSelector(selfLink)),
+      first()
+    ).subscribe((entry: ObjectCacheEntry) => result = this.isValid(entry));
 
     return result;
   }

src/app/core/cache/response-cache.effects.ts

@@ -1,5 +1,6 @@
+import { map } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
-import { Actions, Effect } from '@ngrx/effects';
+import { Actions, Effect, ofType } from '@ngrx/effects';
 
 import { ResetResponseCacheTimestampsAction } from './response-cache.actions';
 import { StoreActionTypes } from '../../store.actions';
@@ -16,9 +17,11 @@ export class ResponseCacheEffects {
    * time ago, and will likely need to be revisited later
    */
   @Effect() fixTimestampsOnRehydrate = this.actions$
-    .ofType(StoreActionTypes.REHYDRATE)
-    .map(() => new ResetResponseCacheTimestampsAction(new Date().getTime()));
+    .pipe(ofType(StoreActionTypes.REHYDRATE),
+      map(() => new ResetResponseCacheTimestampsAction(new Date().getTime()))
+    );
 
-  constructor(private actions$: Actions, ) { }
+  constructor(private actions$: Actions,) {
+  }
 
 }

src/app/core/cache/response-cache.service.ts

@@ -1,5 +1,6 @@
+import { filter, take, distinctUntilChanged, first } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
-import { MemoizedSelector, Store } from '@ngrx/store';
+import { MemoizedSelector, select, Store } from '@ngrx/store';
 
 import { Observable } from 'rxjs';
 
@@ -21,7 +22,8 @@ function entryFromKeySelector(key: string): MemoizedSelector<CoreState, Response
 export class ResponseCacheService {
   constructor(
     private store: Store<CoreState>
-  ) { }
+  ) {
+  }
 
   add(key: string, response: RestResponse, msToLive: number): Observable<ResponseCacheEntry> {
     if (!this.has(key)) {
@@ -39,9 +41,11 @@ export class ResponseCacheService {
    *    an observable of the ResponseCacheEntry with the specified key
    */
   get(key: string): Observable<ResponseCacheEntry> {
-    return this.store.select(entryFromKeySelector(key))
-      .filter((entry: ResponseCacheEntry) => this.isValid(entry))
-      .distinctUntilChanged()
+    return this.store.pipe(
+      select(entryFromKeySelector(key)),
+      filter((entry: ResponseCacheEntry) => this.isValid(entry)),
+      distinctUntilChanged()
+    )
   }
 
   /**
@@ -56,11 +60,11 @@ export class ResponseCacheService {
   has(key: string): boolean {
     let result: boolean;
 
-    this.store.select(entryFromKeySelector(key))
-      .take(1)
-      .subscribe((entry: ResponseCacheEntry) => {
-        result = this.isValid(entry);
-      });
+    this.store.pipe(select(entryFromKeySelector(key)),
+      first()
+    ).subscribe((entry: ResponseCacheEntry) => {
+      result = this.isValid(entry);
+    });
 
     return result;
   }
@@ -70,6 +74,7 @@ export class ResponseCacheService {
       this.store.dispatch(new ResponseCacheRemoveAction(key));
     }
   }
+
   /**
    * Check whether a ResponseCacheEntry should still be cached
    *

src/app/core/config/config.service.ts

@@ -1,9 +1,8 @@
-
-import {throwError as observableThrowError,  Observable } from 'rxjs';
-
+import { Observable, of as observableOf, throwError as observableThrowError } from 'rxjs';
+import { distinctUntilChanged, filter, map, mergeMap, tap } from 'rxjs/operators';
 import { RequestService } from '../data/request.service';
 import { ResponseCacheService } from '../cache/response-cache.service';
-import { ConfigSuccessResponse, ErrorResponse, RestResponse } from '../cache/response-cache.models';
+import { ConfigSuccessResponse } from '../cache/response-cache.models';
 import { ConfigRequest, FindAllOptions, RestRequest } from '../data/request.models';
 import { ResponseCacheEntry } from '../cache/response-cache.reducer';
 import { hasValue, isNotEmpty } from '../../shared/empty.util';
@@ -19,16 +18,18 @@ export abstract class ConfigService {
   protected abstract halService: HALEndpointService;
 
   protected getConfig(request: RestRequest): Observable<ConfigData> {
-    const [successResponse, errorResponse] =  this.responseCache.get(request.href)
-      .map((entry: ResponseCacheEntry) => entry.response)
-      .partition((response: RestResponse) => response.isSuccessful);
-    return Observable.merge(
-      errorResponse.flatMap((response: ErrorResponse) =>
-        observableThrowError(new Error(`Couldn't retrieve the config`))),
-      successResponse
-        .filter((response: ConfigSuccessResponse) => isNotEmpty(response) && isNotEmpty(response.configDefinition))
-        .map((response: ConfigSuccessResponse) => new ConfigData(response.pageInfo, response.configDefinition))
-        .distinctUntilChanged());
+    return this.responseCache.get(request.href).pipe(
+      map((entry: ResponseCacheEntry) => entry.response),
+      mergeMap((response) => {
+        if (response.isSuccessful && isNotEmpty(response) && isNotEmpty((response as ConfigSuccessResponse).configDefinition)) {
+          const configResponse = response as ConfigSuccessResponse;
+          return observableOf(new ConfigData(configResponse.pageInfo, configResponse.configDefinition));
+        } else if (!response.isSuccessful) {
+          return observableThrowError(new Error(`Couldn't retrieve the config`));
+        }
+      }),
+      distinctUntilChanged()
+    );
   }
 
   protected getConfigByNameHref(endpoint, resourceName): string {
@@ -66,13 +67,13 @@ export abstract class ConfigService {
   }
 
   public getConfigAll(): Observable<ConfigData> {
-    return this.halService.getEndpoint(this.linkPath)
-      .filter((href: string) => isNotEmpty(href))
-      .distinctUntilChanged()
-      .map((endpointURL: string) => new ConfigRequest(this.requestService.generateRequestId(), endpointURL))
-      .do((request: RestRequest) => this.requestService.configure(request))
-      .flatMap((request: RestRequest) => this.getConfig(request))
-      .distinctUntilChanged();
+    return this.halService.getEndpoint(this.linkPath).pipe(
+      filter((href: string) => isNotEmpty(href)),
+      distinctUntilChanged(),
+      map((endpointURL: string) => new ConfigRequest(this.requestService.generateRequestId(), endpointURL)),
+      tap((request: RestRequest) => this.requestService.configure(request)),
+      mergeMap((request: RestRequest) => this.getConfig(request)),
+      distinctUntilChanged(),);
   }
 
   public getConfigByHref(href: string): Observable<ConfigData> {
@@ -83,25 +84,25 @@ export abstract class ConfigService {
   }
 
   public getConfigByName(name: string): Observable<ConfigData> {
-    return this.halService.getEndpoint(this.linkPath)
-      .map((endpoint: string) => this.getConfigByNameHref(endpoint, name))
-      .filter((href: string) => isNotEmpty(href))
-      .distinctUntilChanged()
-      .map((endpointURL: string) => new ConfigRequest(this.requestService.generateRequestId(), endpointURL))
-      .do((request: RestRequest) => this.requestService.configure(request))
-      .flatMap((request: RestRequest) => this.getConfig(request))
-      .distinctUntilChanged();
+    return this.halService.getEndpoint(this.linkPath).pipe(
+      map((endpoint: string) => this.getConfigByNameHref(endpoint, name)),
+      filter((href: string) => isNotEmpty(href)),
+      distinctUntilChanged(),
+      map((endpointURL: string) => new ConfigRequest(this.requestService.generateRequestId(), endpointURL)),
+      tap((request: RestRequest) => this.requestService.configure(request)),
+      mergeMap((request: RestRequest) => this.getConfig(request)),
+      distinctUntilChanged(),);
   }
 
   public getConfigBySearch(options: FindAllOptions = {}): Observable<ConfigData> {
-    return this.halService.getEndpoint(this.linkPath)
-      .map((endpoint: string) => this.getConfigSearchHref(endpoint, options))
-      .filter((href: string) => isNotEmpty(href))
-      .distinctUntilChanged()
-      .map((endpointURL: string) => new ConfigRequest(this.requestService.generateRequestId(), endpointURL))
-      .do((request: RestRequest) => this.requestService.configure(request))
-      .flatMap((request: RestRequest) => this.getConfig(request))
-      .distinctUntilChanged();
+    return this.halService.getEndpoint(this.linkPath).pipe(
+      map((endpoint: string) => this.getConfigSearchHref(endpoint, options)),
+      filter((href: string) => isNotEmpty(href)),
+      distinctUntilChanged(),
+      map((endpointURL: string) => new ConfigRequest(this.requestService.generateRequestId(), endpointURL)),
+      tap((request: RestRequest) => this.requestService.configure(request)),
+      mergeMap((request: RestRequest) => this.getConfig(request)),
+      distinctUntilChanged(),);
   }
 
 }

src/app/core/data/comcol-data.service.ts

@@ -1,10 +1,8 @@
-
-import {throwError as observableThrowError,  Observable } from 'rxjs';
+import { Observable, throwError as observableThrowError } from 'rxjs';
+import { distinctUntilChanged, filter, first, map, mergeMap, tap } from 'rxjs/operators';
 import { isEmpty, isNotEmpty } from '../../shared/empty.util';
 import { NormalizedCommunity } from '../cache/models/normalized-community.model';
-import { CacheableObject } from '../cache/object-cache.reducer';
 import { ObjectCacheService } from '../cache/object-cache.service';
-import { DSOSuccessResponse, ErrorResponse, RestResponse } from '../cache/response-cache.models';
 import { ResponseCacheEntry } from '../cache/response-cache.reducer';
 import { CommunityDataService } from './community-data.service';
 
@@ -13,7 +11,7 @@ import { FindByIDRequest } from './request.models';
 import { NormalizedObject } from '../cache/models/normalized-object.model';
 import { HALEndpointService } from '../shared/hal-endpoint.service';
 
-export abstract class ComColDataService<TNormalized extends NormalizedObject, TDomain>  extends DataService<TNormalized, TDomain> {
+export abstract class ComColDataService<TNormalized extends NormalizedObject, TDomain> extends DataService<TNormalized, TDomain> {
   protected abstract cds: CommunityDataService;
   protected abstract objectCache: ObjectCacheService;
   protected abstract halService: HALEndpointService;
@@ -32,29 +30,31 @@ export abstract class ComColDataService<TNormalized extends NormalizedObject, TD
     if (isEmpty(scopeID)) {
       return this.halService.getEndpoint(this.linkPath);
     } else {
-      const scopeCommunityHrefObs = this.cds.getEndpoint()
-        .flatMap((endpoint: string) => this.cds.getFindByIDHref(endpoint, scopeID))
-        .filter((href: string) => isNotEmpty(href))
-        .take(1)
-        .do((href: string) => {
+      const scopeCommunityHrefObs = this.cds.getEndpoint().pipe(
+        mergeMap((endpoint: string) => this.cds.getFindByIDHref(endpoint, scopeID)),
+        first((href: string) => isNotEmpty(href)),
+        tap((href: string) => {
           const request = new FindByIDRequest(this.requestService.generateRequestId(), href, scopeID);
           this.requestService.configure(request);
-        });
+        }),);
 
-      const [successResponse, errorResponse] = scopeCommunityHrefObs
-        .flatMap((href: string) => this.responseCache.get(href))
-        .map((entry: ResponseCacheEntry) => entry.response)
-        .share()
-        .partition((response: RestResponse) => response.isSuccessful);
-
-      return Observable.merge(
-        errorResponse.flatMap((response: ErrorResponse) =>
-          observableThrowError(new Error(`The Community with scope ${scopeID} couldn't be retrieved`))),
-        successResponse
-          .flatMap((response: DSOSuccessResponse) => this.objectCache.getByUUID(scopeID))
-          .map((nc: NormalizedCommunity) => nc._links[this.linkPath])
-          .filter((href) => isNotEmpty(href))
-      ).distinctUntilChanged();
+      return scopeCommunityHrefObs.pipe(
+        mergeMap((href: string) => this.responseCache.get(href)),
+        map((entry: ResponseCacheEntry) => entry.response),
+        mergeMap((response) => {
+          if (response.isSuccessful) {
+            const community$: Observable<NormalizedCommunity> = this.objectCache.getByUUID(scopeID);
+            return community$.pipe(
+              map((community) => community._links[this.linkPath]),
+              filter((href) => isNotEmpty(href)),
+              distinctUntilChanged()
+            );
+          } else if (!response.isSuccessful) {
+            return observableThrowError(new Error(`The Community with scope ${scopeID} couldn't be retrieved`))
+          }
+        }),
+        distinctUntilChanged()
+      );
     }
   }
 }

src/app/core/data/community-data.service.ts

@@ -1,3 +1,5 @@
+
+import {mergeMap, filter, take} from 'rxjs/operators';
 import { Injectable } from '@angular/core';
 
 import { Store } from '@ngrx/store';
@@ -38,12 +40,12 @@ export class CommunityDataService extends ComColDataService<NormalizedCommunity,
   }
 
   findTop(options: FindAllOptions = {}): Observable<RemoteData<PaginatedList<Community>>> {
-    const hrefObs = this.halService.getEndpoint(this.topLinkPath).filter((href: string) => isNotEmpty(href))
-      .flatMap((endpoint: string) => this.getFindAllHref(endpoint, options));
+    const hrefObs = this.halService.getEndpoint(this.topLinkPath).pipe(filter((href: string) => isNotEmpty(href)),
+      mergeMap((endpoint: string) => this.getFindAllHref(endpoint, options)),);
 
-    hrefObs
-      .filter((href: string) => hasValue(href))
-      .take(1)
+    hrefObs.pipe(
+      filter((href: string) => hasValue(href)),
+      take(1),)
       .subscribe((href: string) => {
         const request = new FindAllRequest(this.requestService.generateRequestId(), href, options);
         this.requestService.configure(request);

src/app/core/data/data.service.ts

@@ -1,5 +1,8 @@
+
+import {of as observableOf,  Observable } from 'rxjs';
+
+import {mergeMap, first, take, distinctUntilChanged, map, filter} from 'rxjs/operators';
 import { Store } from '@ngrx/store';
-import { Observable } from 'rxjs';
 import { hasValue, isNotEmpty } from '../../shared/empty.util';
 import { RemoteDataBuildService } from '../cache/builders/remote-data-build.service';
 import { ResponseCacheService } from '../cache/response-cache.service';
@@ -27,9 +30,9 @@ export abstract class DataService<TNormalized extends NormalizedObject, TDomain>
     const args = [];
 
     if (hasValue(options.scopeID)) {
-      result = this.getScopedEndpoint(options.scopeID).distinctUntilChanged();
+      result = this.getScopedEndpoint(options.scopeID).pipe(distinctUntilChanged());
     } else {
-      result = Observable.of(endpoint);
+      result = observableOf(endpoint);
     }
 
     if (hasValue(options.currentPage) && typeof options.currentPage === 'number') {
@@ -50,19 +53,19 @@ export abstract class DataService<TNormalized extends NormalizedObject, TDomain>
     }
 
     if (isNotEmpty(args)) {
-      return result.map((href: string) => new URLCombiner(href, `?${args.join('&')}`).toString());
+      return result.pipe(map((href: string) => new URLCombiner(href, `?${args.join('&')}`).toString()));
     } else {
       return result;
     }
   }
 
   findAll(options: FindAllOptions = {}): Observable<RemoteData<PaginatedList<TDomain>>> {
-    const hrefObs = this.halService.getEndpoint(this.linkPath).filter((href: string) => isNotEmpty(href))
-      .flatMap((endpoint: string) => this.getFindAllHref(endpoint, options));
+    const hrefObs = this.halService.getEndpoint(this.linkPath).pipe(filter((href: string) => isNotEmpty(href)),
+      mergeMap((endpoint: string) => this.getFindAllHref(endpoint, options)),);
 
-    hrefObs
-      .filter((href: string) => hasValue(href))
-      .take(1)
+    hrefObs.pipe(
+      filter((href: string) => hasValue(href)),
+      take(1),)
       .subscribe((href: string) => {
         const request = new FindAllRequest(this.requestService.generateRequestId(), href, options);
         this.requestService.configure(request);
@@ -76,11 +79,11 @@ export abstract class DataService<TNormalized extends NormalizedObject, TDomain>
   }
 
   findById(id: string): Observable<RemoteData<TDomain>> {
-    const hrefObs = this.halService.getEndpoint(this.linkPath)
-      .map((endpoint: string) => this.getFindByIDHref(endpoint, id));
+    const hrefObs = this.halService.getEndpoint(this.linkPath).pipe(
+      map((endpoint: string) => this.getFindByIDHref(endpoint, id)));
 
-    hrefObs
-      .first((href: string) => hasValue(href))
+    hrefObs.pipe(
+      first((href: string) => hasValue(href)))
       .subscribe((href: string) => {
         const request = new FindByIDRequest(this.requestService.generateRequestId(), href, id);
         this.requestService.configure(request);

src/app/core/data/item-data.service.ts

@@ -1,3 +1,5 @@
+
+import {distinctUntilChanged, map, filter} from 'rxjs/operators';
 import { Inject, Injectable } from '@angular/core';
 
 import { Store } from '@ngrx/store';
@@ -34,10 +36,10 @@ export class ItemDataService extends DataService<NormalizedItem, Item> {
     if (isEmpty(scopeID)) {
       return this.halService.getEndpoint(this.linkPath);
     } else {
-      return this.bs.getBrowseURLFor('dc.date.issued', this.linkPath)
-        .filter((href: string) => isNotEmpty(href))
-        .map((href: string) => new URLCombiner(href, `?scope=${scopeID}`).toString())
-        .distinctUntilChanged();
+      return this.bs.getBrowseURLFor('dc.date.issued', this.linkPath).pipe(
+        filter((href: string) => isNotEmpty(href)),
+        map((href: string) => new URLCombiner(href, `?scope=${scopeID}`).toString()),
+        distinctUntilChanged(),);
     }
   }
 

src/app/core/data/request.effects.ts

@@ -1,9 +1,9 @@
+
+import {of as observableOf,  Observable } from 'rxjs';
 import { Inject, Injectable, Injector } from '@angular/core';
 import { Request } from '@angular/http';
 import { RequestArgs } from '@angular/http/src/interfaces';
 import { Actions, Effect, ofType } from '@ngrx/effects';
-// tslint:disable-next-line:import-blacklist
-import { Observable } from 'rxjs';
 
 import { GLOBAL_CONFIG, GlobalConfig } from '../../../config';
 import { isNotEmpty } from '../../shared/empty.util';
@@ -30,7 +30,8 @@ export const addToResponseCacheAndCompleteAction = (request: RestRequest, respon
 @Injectable()
 export class RequestEffects {
 
-  @Effect() execute = this.actions$.ofType(RequestActionTypes.EXECUTE).pipe(
+  @Effect() execute = this.actions$.pipe(
+    ofType(RequestActionTypes.EXECUTE),
     flatMap((action: RequestExecuteAction) => {
       return this.requestService.getByUUID(action.payload).pipe(
         take(1)
@@ -46,7 +47,7 @@ export class RequestEffects {
       return this.restApi.request(request.method, request.href, body, request.options).pipe(
         map((data: DSpaceRESTV2Response) => this.injector.get(request.getResponseParser()).parse(request, data)),
         addToResponseCacheAndCompleteAction(request, this.responseCache, this.EnvConfig),
-        catchError((error: RequestError) => Observable.of(new ErrorResponse(error)).pipe(
+        catchError((error: RequestError) => observableOf(new ErrorResponse(error)).pipe(
           addToResponseCacheAndCompleteAction(request, this.responseCache, this.EnvConfig)
         ))
       );

src/app/core/data/request.service.spec.ts

@@ -1,7 +1,6 @@
 import { Store } from '@ngrx/store';
 import { cold, hot } from 'jasmine-marbles';
-import { Observable } from 'rxjs';
-import 'rxjs/add/observable/of';
+import { of as observableOf } from 'rxjs';
 import { getMockObjectCacheService } from '../../shared/mocks/mock-object-cache.service';
 import { getMockResponseCacheService } from '../../shared/mocks/mock-response-cache.service';
 import { getMockStore } from '../../shared/mocks/mock-store';
@@ -18,7 +17,8 @@ import {
   OptionsRequest,
   PatchRequest,
   PostRequest,
-  PutRequest, RestRequest
+  PutRequest,
+  RestRequest
 } from './request.models';
 import { RequestService } from './request.service';
 
@@ -46,12 +46,12 @@ describe('RequestService', () => {
 
     responseCache = getMockResponseCacheService();
     (responseCache.has as any).and.returnValue(false);
-    (responseCache.get as any).and.returnValue(Observable.of(undefined));
+    (responseCache.get as any).and.returnValue(observableOf(undefined));
 
     uuidService = getMockUUIDService();
 
     store = getMockStore<CoreState>();
-    (store.select as any).and.returnValue(Observable.of(undefined));
+    (store.pipe as any).and.returnValue(observableOf(undefined));
 
     service = new RequestService(
       objectCache,
@@ -74,7 +74,7 @@ describe('RequestService', () => {
   describe('isPending', () => {
     describe('before the request is configured', () => {
       beforeEach(() => {
-        spyOn(service, 'getByHref').and.returnValue(Observable.of(undefined));
+        spyOn(service, 'getByHref').and.returnValue(observableOf(undefined));
       });
 
       it('should return false', () => {
@@ -87,7 +87,7 @@ describe('RequestService', () => {
 
     describe('when the request has been configured but hasn\'t reached the store yet', () => {
       beforeEach(() => {
-        spyOn(service, 'getByHref').and.returnValue(Observable.of(undefined));
+        spyOn(service, 'getByHref').and.returnValue(observableOf(undefined));
         serviceAsAny.requestsOnTheirWayToTheStore = [testHref];
       });
 
@@ -101,7 +101,7 @@ describe('RequestService', () => {
 
     describe('when the request has reached the store, before the server responds', () => {
       beforeEach(() => {
-        spyOn(service, 'getByHref').and.returnValue(Observable.of({
+        spyOn(service, 'getByHref').and.returnValue(observableOf({
           completed: false
         }))
       });
@@ -116,7 +116,7 @@ describe('RequestService', () => {
 
     describe('after the server responds', () => {
       beforeEach(() => {
-        spyOn(service, 'getByHref').and.returnValues(Observable.of({
+        spyOn(service, 'getByHref').and.returnValues(observableOf({
           completed: true
         }));
       });
@@ -134,7 +134,7 @@ describe('RequestService', () => {
   describe('getByUUID', () => {
     describe('if the request with the specified UUID exists in the store', () => {
       beforeEach(() => {
-        (store.select as any).and.returnValues(hot('a', {
+        (store.pipe as any).and.returnValues(hot('a', {
           a: {
             completed: true
           }
@@ -155,7 +155,7 @@ describe('RequestService', () => {
 
     describe('if the request with the specified UUID doesn\'t exist in the store', () => {
       beforeEach(() => {
-        (store.select as any).and.returnValues(hot('a', {
+        (store.pipe as any).and.returnValues(hot('a', {
           a: undefined
         }));
       });
@@ -175,7 +175,7 @@ describe('RequestService', () => {
   describe('getByHref', () => {
     describe('when the request with the specified href exists in the store', () => {
       beforeEach(() => {
-        (store.select as any).and.returnValues(hot('a', {
+        (store.pipe as any).and.returnValues(hot('a', {
           a: testUUID
         }));
         spyOn(service, 'getByUUID').and.returnValue(cold('b', {
@@ -199,7 +199,7 @@ describe('RequestService', () => {
 
     describe('when the request with the specified href doesn\'t exist in the store', () => {
       beforeEach(() => {
-        (store.select as any).and.returnValues(hot('a', {
+        (store.pipe as any).and.returnValues(hot('a', {
           a: undefined
         }));
         spyOn(service, 'getByUUID').and.returnValue(cold('b', {
@@ -323,7 +323,7 @@ describe('RequestService', () => {
 
         describe('and it\'s a DSOSuccessResponse', () => {
           beforeEach(() => {
-            (responseCache.get as any).and.returnValues(Observable.of({
+            (responseCache.get as any).and.returnValues(observableOf({
                 response: {
                   isSuccessful: true,
                   resourceSelfLinks: [
@@ -356,7 +356,7 @@ describe('RequestService', () => {
           beforeEach(() => {
             (objectCache.hasBySelfLink as any).and.returnValues(false);
             (responseCache.has as any).and.returnValues(true);
-            (responseCache.get as any).and.returnValues(Observable.of({
+            (responseCache.get as any).and.returnValues(observableOf({
                 response: {
                   isSuccessful: true
                 }
@@ -428,7 +428,7 @@ describe('RequestService', () => {
 
     describe('when the request is added to the store', () => {
       it('should stop tracking the request', () => {
-        (store.select as any).and.returnValues(Observable.of({ request }));
+        (store.pipe as any).and.returnValues(observableOf({ request }));
         serviceAsAny.trackRequestsOnTheirWayToTheStore(request);
         expect(serviceAsAny.requestsOnTheirWayToTheStore.includes(request.href)).toBeFalsy();
       });

src/app/core/data/request.service.ts

@@ -1,12 +1,12 @@
+import { Observable } from 'rxjs';
+import { filter, first, map, mergeMap, take } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
 
-import { createSelector, MemoizedSelector, Store } from '@ngrx/store';
-
-import { Observable } from 'rxjs';
+import { MemoizedSelector, select, Store } from '@ngrx/store';
 import { hasValue } from '../../shared/empty.util';
 import { CacheableObject } from '../cache/object-cache.reducer';
 import { ObjectCacheService } from '../cache/object-cache.service';
-import { DSOSuccessResponse, RestResponse } from '../cache/response-cache.models';
+import { DSOSuccessResponse } from '../cache/response-cache.models';
 import { ResponseCacheEntry } from '../cache/response-cache.reducer';
 import { ResponseCacheService } from '../cache/response-cache.service';
 import { coreSelector, CoreState } from '../core.reducers';
@@ -16,8 +16,7 @@ import { UUIDService } from '../shared/uuid.service';
 import { RequestConfigureAction, RequestExecuteAction } from './request.actions';
 import { GetRequest, RestRequest, RestRequestMethod } from './request.models';
 
-import { RequestEntry, RequestState } from './request.reducer';
-import { ResponseCacheRemoveAction } from '../cache/response-cache.actions';
+import { RequestEntry } from './request.reducer';
 
 @Injectable()
 export class RequestService {
@@ -49,8 +48,8 @@ export class RequestService {
 
     // then check the store
     let isPending = false;
-    this.getByHref(request.href)
-      .take(1)
+    this.getByHref(request.href).pipe(
+      take(1))
       .subscribe((re: RequestEntry) => {
         isPending = (hasValue(re) && !re.completed)
       });
@@ -59,12 +58,14 @@ export class RequestService {
   }
 
   getByUUID(uuid: string): Observable<RequestEntry> {
-    return this.store.select(this.entryFromUUIDSelector(uuid));
+    return this.store.pipe(select(this.entryFromUUIDSelector(uuid)));
   }
 
   getByHref(href: string): Observable<RequestEntry> {
-    return this.store.select(this.uuidFromHrefSelector(href))
-      .flatMap((uuid: string) => this.getByUUID(uuid));
+    return this.store.pipe(
+      select(this.uuidFromHrefSelector(href)),
+      mergeMap((uuid: string) => this.getByUUID(uuid))
+    );
   }
 
   // TODO to review "overrideRequest" param when https://github.com/DSpace/dspace-angular/issues/217 will be fixed
@@ -81,29 +82,19 @@ export class RequestService {
   private isCachedOrPending(request: GetRequest) {
     let isCached = this.objectCache.hasBySelfLink(request.href);
     if (!isCached && this.responseCache.has(request.href)) {
-      const [successResponse, errorResponse] = this.responseCache.get(request.href)
-        .take(1)
-        .map((entry: ResponseCacheEntry) => entry.response)
-        .share()
-        .partition((response: RestResponse) => response.isSuccessful);
-
-      const [dsoSuccessResponse, otherSuccessResponse] = successResponse
-        .share()
-        .partition((response: DSOSuccessResponse) => hasValue(response.resourceSelfLinks));
-
-      Observable.merge(
-        errorResponse.map(() => true), // TODO add a configurable number of retries in case of an error.
-        otherSuccessResponse.map(() => true),
-        dsoSuccessResponse // a DSOSuccessResponse should only be considered cached if all its resources are cached
-          .map((response: DSOSuccessResponse) => response.resourceSelfLinks)
-          .map((resourceSelfLinks: string[]) => resourceSelfLinks
-            .every((selfLink) => this.objectCache.hasBySelfLink(selfLink))
-          )
+      this.responseCache.get(request.href).pipe(
+        first(),
+        map((entry: ResponseCacheEntry) => {
+          const response = entry.response;
+          if (response.isSuccessful && hasValue((response as DSOSuccessResponse).resourceSelfLinks)) {
+            return (response as DSOSuccessResponse).resourceSelfLinks.every((selfLink) => this.objectCache.hasBySelfLink(selfLink))
+          } else {
+            return true;
+          }
+        })
       ).subscribe((c) => isCached = c);
     }
-
     const isPending = this.isPending(request);
-
     return isCached || isPending;
   }
 
@@ -121,11 +112,11 @@ export class RequestService {
    */
   private trackRequestsOnTheirWayToTheStore(request: GetRequest) {
     this.requestsOnTheirWayToTheStore = [...this.requestsOnTheirWayToTheStore, request.href];
-    this.store.select(this.entryFromUUIDSelector(request.href))
-      .filter((re: RequestEntry) => hasValue(re))
-      .take(1)
-      .subscribe((re: RequestEntry) => {
-        this.requestsOnTheirWayToTheStore = this.requestsOnTheirWayToTheStore.filter((pendingHref: string) => pendingHref !== request.href)
-      });
+    this.store.pipe(select(this.entryFromUUIDSelector(request.href)),
+      filter((re: RequestEntry) => hasValue(re)),
+      take(1)
+    ).subscribe((re: RequestEntry) => {
+      this.requestsOnTheirWayToTheStore = this.requestsOnTheirWayToTheStore.filter((pendingHref: string) => pendingHref !== request.href)
+    });
   }
 }

src/app/core/dspace-rest-v2/dspace-rest-v2.service.ts

@@ -1,5 +1,5 @@
-
 import {throwError as observableThrowError,  Observable } from 'rxjs';
+import {catchError, map} from 'rxjs/operators';
 import { Injectable } from '@angular/core';
 import { Request } from '@angular/http';
 import { HttpClient, HttpHeaders, HttpParams, HttpResponse } from '@angular/common/http'
@@ -37,12 +37,12 @@ export class DSpaceRESTv2Service {
    *      An Observable<string> containing the response from the server
    */
   get(absoluteURL: string): Observable<DSpaceRESTV2Response> {
-    return this.http.get(absoluteURL, { observe: 'response' })
-      .map((res: HttpResponse<any>) => ({ payload: res.body, statusCode: res.statusText }))
-      .catch((err) => {
+    return this.http.get(absoluteURL, { observe: 'response' }).pipe(
+      map((res: HttpResponse<any>) => ({ payload: res.body, statusCode: res.statusText })),
+      catchError((err) => {
         console.log('Error: ', err);
         return observableThrowError(err);
-      });
+      }));
   }
 
   /**
@@ -67,12 +67,12 @@ export class DSpaceRESTv2Service {
     if (options && options.responseType) {
       requestOptions.responseType = options.responseType;
     }
-    return this.http.request(method, url, requestOptions)
-      .map((res) => ({ payload: res.body, headers: res.headers, statusCode: res.statusText }))
-      .catch((err) => {
+    return this.http.request(method, url, requestOptions).pipe(
+      map((res) => ({ payload: res.body, headers: res.headers, statusCode: res.statusText })),
+      catchError((err) => {
         console.log('Error: ', err);
         return observableThrowError(err);
-      });
+      }));
   }
 
 }

src/app/core/index/index.effects.ts

@@ -1,5 +1,6 @@
+import { filter, map } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
-import { Effect, Actions } from '@ngrx/effects';
+import { Effect, Actions, ofType } from '@ngrx/effects';
 
 import {
   ObjectCacheActionTypes, AddToObjectCacheAction,
@@ -15,44 +16,52 @@ import { IndexName } from './index.reducer';
 export class UUIDIndexEffects {
 
   @Effect() addObject$ = this.actions$
-    .ofType(ObjectCacheActionTypes.ADD)
-    .filter((action: AddToObjectCacheAction) => hasValue(action.payload.objectToCache.uuid))
-    .map((action: AddToObjectCacheAction) => {
-      return new AddToIndexAction(
-        IndexName.OBJECT,
-        action.payload.objectToCache.uuid,
-        action.payload.objectToCache.self
-      );
-    });
+    .pipe(
+      ofType(ObjectCacheActionTypes.ADD),
+      filter((action: AddToObjectCacheAction) => hasValue(action.payload.objectToCache.uuid)),
+      map((action: AddToObjectCacheAction) => {
+        return new AddToIndexAction(
+          IndexName.OBJECT,
+          action.payload.objectToCache.uuid,
+          action.payload.objectToCache.self
+        );
+      })
+    );
 
   @Effect() removeObject$ = this.actions$
-    .ofType(ObjectCacheActionTypes.REMOVE)
-    .map((action: RemoveFromObjectCacheAction) => {
-      return new RemoveFromIndexByValueAction(
-        IndexName.OBJECT,
-        action.payload
-      );
-    });
+    .pipe(
+      ofType(ObjectCacheActionTypes.REMOVE),
+      map((action: RemoveFromObjectCacheAction) => {
+        return new RemoveFromIndexByValueAction(
+          IndexName.OBJECT,
+          action.payload
+        );
+      })
+    );
 
   @Effect() addRequest$ = this.actions$
-    .ofType(RequestActionTypes.CONFIGURE)
-    .filter((action: RequestConfigureAction) => action.payload.method === RestRequestMethod.Get)
-    .map((action: RequestConfigureAction) => {
-      return new AddToIndexAction(
-        IndexName.REQUEST,
-        action.payload.href,
-        action.payload.uuid
-      );
-    });
+    .pipe(
+      ofType(RequestActionTypes.CONFIGURE),
+      filter((action: RequestConfigureAction) => action.payload.method === RestRequestMethod.Get),
+      map((action: RequestConfigureAction) => {
+        return new AddToIndexAction(
+          IndexName.REQUEST,
+          action.payload.href,
+          action.payload.uuid
+        );
+      })
+    );
 
   // @Effect() removeRequest$ = this.actions$
-  //   .ofType(ObjectCacheActionTypes.REMOVE)
-  //   .map((action: RemoveFromObjectCacheAction) => {
+  //   .pipe(
+  //    ofType(ObjectCacheActionTypes.REMOVE),
+  //    map((action: RemoveFromObjectCacheAction) => {
   //     return new RemoveFromIndexByValueAction(
   //       IndexName.OBJECT,
   //       action.payload
   //     );
-  //   });
+  //   })
+  // )
 
   constructor(private actions$: Actions) {
 

src/app/core/integration/integration.service.ts

@@ -1,8 +1,8 @@
-
-import {throwError as observableThrowError,  Observable } from 'rxjs';
+import { Observable, of as observableOf, throwError as observableThrowError } from 'rxjs';
+import { distinctUntilChanged, filter, map, mergeMap, tap } from 'rxjs/operators';
 import { RequestService } from '../data/request.service';
 import { ResponseCacheService } from '../cache/response-cache.service';
-import { ErrorResponse, IntegrationSuccessResponse, RestResponse } from '../cache/response-cache.models';
+import { IntegrationSuccessResponse } from '../cache/response-cache.models';
 import { GetRequest, IntegrationRequest } from '../data/request.models';
 import { ResponseCacheEntry } from '../cache/response-cache.reducer';
 import { hasValue, isNotEmpty } from '../../shared/empty.util';
@@ -19,16 +19,18 @@ export abstract class IntegrationService {
   protected abstract halService: HALEndpointService;
 
   protected getData(request: GetRequest): Observable<IntegrationData> {
-    const [successResponse, errorResponse] = this.responseCache.get(request.href)
-      .map((entry: ResponseCacheEntry) => entry.response)
-      .partition((response: RestResponse) => response.isSuccessful);
-    return Observable.merge(
-      errorResponse.flatMap((response: ErrorResponse) =>
-        observableThrowError(new Error(`Couldn't retrieve the integration data`))),
-      successResponse
-        .filter((response: IntegrationSuccessResponse) => isNotEmpty(response))
-        .map((response: IntegrationSuccessResponse) => new IntegrationData(response.pageInfo, response.dataDefinition))
-        .distinctUntilChanged());
+     return this.responseCache.get(request.href).pipe(
+        map((entry: ResponseCacheEntry) => entry.response),
+        mergeMap((response) => {
+          if (response.isSuccessful && isNotEmpty(response)) {
+            const dataResponse = response as IntegrationSuccessResponse;
+            return observableOf(new IntegrationData(dataResponse.pageInfo, dataResponse.dataDefinition));
+          } else if (!response.isSuccessful) {
+            return observableThrowError(new Error(`Couldn't retrieve the integration data`));
+          }
+        }),
+       distinctUntilChanged()
+      );
   }
 
   protected getIntegrationHref(endpoint, options: IntegrationSearchOptions = new IntegrationSearchOptions()): string {
@@ -73,14 +75,14 @@ export abstract class IntegrationService {
   }
 
   public getEntriesByName(options: IntegrationSearchOptions): Observable<IntegrationData> {
-    return this.halService.getEndpoint(this.linkPath)
-      .map((endpoint: string) => this.getIntegrationHref(endpoint, options))
-      .filter((href: string) => isNotEmpty(href))
-      .distinctUntilChanged()
-      .map((endpointURL: string) => new IntegrationRequest(this.requestService.generateRequestId(), endpointURL))
-      .do((request: GetRequest) => this.requestService.configure(request))
-      .flatMap((request: GetRequest) => this.getData(request))
-      .distinctUntilChanged();
+    return this.halService.getEndpoint(this.linkPath).pipe(
+      map((endpoint: string) => this.getIntegrationHref(endpoint, options)),
+      filter((href: string) => isNotEmpty(href)),
+      distinctUntilChanged(),
+      map((endpointURL: string) => new IntegrationRequest(this.requestService.generateRequestId(), endpointURL)),
+      tap((request: GetRequest) => this.requestService.configure(request)),
+      mergeMap((request: GetRequest) => this.getData(request)),
+      distinctUntilChanged());
   }
 
 }

src/app/core/metadata/metadata.service.ts

@@ -1,4 +1,6 @@
 
+import {distinctUntilKeyChanged, map, filter, first, take} from 'rxjs/operators';
+
 
 
 import { Inject, Injectable } from '@angular/core';
@@ -54,21 +56,21 @@ export class MetadataService {
   }
 
   public listenForRouteChange(): void {
-    this.router.events
-      .filter((event) => event instanceof NavigationEnd)
-      .map(() => this.router.routerState.root)
-      .map((route: ActivatedRoute) => {
+    this.router.events.pipe(
+      filter((event) => event instanceof NavigationEnd),
+      map(() => this.router.routerState.root),
+      map((route: ActivatedRoute) => {
         route = this.getCurrentRoute(route);
         return { params: route.params, data: route.data };
-      }).subscribe((routeInfo: any) => {
+      }),).subscribe((routeInfo: any) => {
         this.processRouteChange(routeInfo);
       });
   }
 
   public processRemoteData(remoteData: Observable<RemoteData<CacheableObject>>): void {
-    remoteData.map((rd: RemoteData<CacheableObject>) => rd.payload)
-      .filter((co: CacheableObject) => hasValue(co))
-      .take(1)
+    remoteData.pipe(map((rd: RemoteData<CacheableObject>) => rd.payload),
+      filter((co: CacheableObject) => hasValue(co)),
+      take(1),)
       .subscribe((dspaceObject: DSpaceObject) => {
         if (!this.initialized) {
           this.initialize(dspaceObject);
@@ -82,13 +84,13 @@ export class MetadataService {
       this.clearMetaTags();
     }
     if (routeInfo.data.value.title) {
-      this.translate.get(routeInfo.data.value.title).take(1).subscribe((translatedTitle: string) => {
+      this.translate.get(routeInfo.data.value.title).pipe(take(1)).subscribe((translatedTitle: string) => {
         this.addMetaTag('title', translatedTitle);
         this.title.setTitle(translatedTitle);
       });
     }
     if (routeInfo.data.value.description) {
-      this.translate.get(routeInfo.data.value.description).take(1).subscribe((translatedDescription: string) => {
+      this.translate.get(routeInfo.data.value.description).pipe(take(1)).subscribe((translatedDescription: string) => {
         this.addMetaTag('description', translatedDescription);
       });
     }
@@ -96,7 +98,7 @@ export class MetadataService {
 
   private initialize(dspaceObject: DSpaceObject): void {
     this.currentObject = new BehaviorSubject<DSpaceObject>(dspaceObject);
-    this.currentObject.asObservable().distinctUntilKeyChanged('uuid').subscribe(() => {
+    this.currentObject.asObservable().pipe(distinctUntilKeyChanged('uuid')).subscribe(() => {
       this.setMetaTags();
     });
     this.initialized = true;
@@ -268,11 +270,11 @@ export class MetadataService {
   private setCitationPdfUrlTag(): void {
     if (this.currentObject.value instanceof Item) {
       const item = this.currentObject.value as Item;
-      item.getFiles().filter((files) => isNotEmpty(files)).first().subscribe((bitstreams: Bitstream[]) => {
+      item.getFiles().pipe(filter((files) => isNotEmpty(files)),first(),).subscribe((bitstreams: Bitstream[]) => {
         for (const bitstream of bitstreams) {
-          bitstream.format.first()
-            .map((rd: RemoteData<BitstreamFormat>) => rd.payload)
-            .filter((format: BitstreamFormat) => hasValue(format))
+          bitstream.format.pipe(first(),
+            map((rd: RemoteData<BitstreamFormat>) => rd.payload),
+            filter((format: BitstreamFormat) => hasValue(format)),)
             .subscribe((format: BitstreamFormat) => {
               if (format.mimetype === 'application/pdf') {
                 this.addMetaTag('citation_pdf_url', bitstream.content);

src/app/core/registry/registry.service.ts

@@ -1,5 +1,6 @@
+
+import {combineLatest as observableCombineLatest,  Observable } from 'rxjs';
 import { Injectable } from '@angular/core';
-import { Observable } from 'rxjs';
 import { RemoteData } from '../data/remote-data';
 import { PaginatedList } from '../data/paginated-list';
 import { PageInfo } from '../shared/page-info.model';
@@ -70,7 +71,7 @@ export class RegistryService {
       map((response: RegistryMetadataschemasSuccessResponse) => response.pageInfo)
     );
 
-    const payloadObs = Observable.combineLatest(metadataschemasObs, pageInfoObs, (metadataschemas, pageInfo) => {
+    const payloadObs = observableCombineLatest(metadataschemasObs, pageInfoObs, (metadataschemas, pageInfo) => {
       return new PaginatedList(pageInfo, metadataschemas);
     });
 
@@ -132,7 +133,7 @@ export class RegistryService {
       map((response: RegistryMetadatafieldsSuccessResponse) => response.pageInfo)
     );
 
-    const payloadObs = Observable.combineLatest(metadatafieldsObs, pageInfoObs, (metadatafields, pageInfo) => {
+    const payloadObs = observableCombineLatest(metadatafieldsObs, pageInfoObs, (metadatafields, pageInfo) => {
       return new PaginatedList(pageInfo, metadatafields);
     });
 
@@ -164,7 +165,7 @@ export class RegistryService {
       map((response: RegistryBitstreamformatsSuccessResponse) => response.pageInfo)
     );
 
-    const payloadObs = Observable.combineLatest(bitstreamformatsObs, pageInfoObs, (bitstreamformats, pageInfo) => {
+    const payloadObs = observableCombineLatest(bitstreamformatsObs, pageInfoObs, (bitstreamformats, pageInfo) => {
       return new PaginatedList(pageInfo, bitstreamformats);
     });
 

src/app/core/shared/hal-endpoint.service.ts

@@ -1,5 +1,5 @@
-import { Observable } from 'rxjs';
-import { distinctUntilChanged, map, flatMap, startWith, tap } from 'rxjs/operators';
+import {of as observableOf,  Observable } from 'rxjs';
+import {filter,  distinctUntilChanged, map, flatMap, startWith, tap } from 'rxjs/operators';
 import { RequestService } from '../data/request.service';
 import { ResponseCacheService } from '../cache/response-cache.service';
 import { GlobalConfig } from '../../../config/global-config.interface';
@@ -30,11 +30,11 @@ export class HALEndpointService {
   private getEndpointMapAt(href): Observable<EndpointMap> {
     const request = new EndpointMapRequest(this.requestService.generateRequestId(), href);
     this.requestService.configure(request);
-    return this.responseCache.get(request.href)
-      .map((entry: ResponseCacheEntry) => entry.response)
-      .filter((response: EndpointMapSuccessResponse) => isNotEmpty(response))
-      .map((response: EndpointMapSuccessResponse) => response.endpointMap)
-      .distinctUntilChanged();
+    return this.responseCache.get(request.href).pipe(
+      map((entry: ResponseCacheEntry) => entry.response),
+      filter((response: EndpointMapSuccessResponse) => isNotEmpty(response)),
+      map((response: EndpointMapSuccessResponse) => response.endpointMap),
+      distinctUntilChanged(),);
   }
 
   public getEndpoint(linkPath: string): Observable<string> {
@@ -61,7 +61,7 @@ export class HALEndpointService {
         }),
       ])
       .reduce((combined, thisElement) => [...combined, ...thisElement], []);
-    return Observable.of(this.getRootHref()).pipe(...pipeArguments, distinctUntilChanged());
+    return observableOf(this.getRootHref()).pipe(...pipeArguments, distinctUntilChanged());
   }
 
   public isEnabledOnRestApi(linkPath: string): Observable<boolean> {

src/app/core/shared/item.model.ts

@@ -1,3 +1,4 @@
+import {map, startWith, filter} from 'rxjs/operators';
 import { Observable } from 'rxjs';
 
 import { DSpaceObject } from './dspace-object.model';
@@ -58,9 +59,9 @@ export class Item extends DSpaceObject {
     // TODO: currently this just picks the first thumbnail
     // should be adjusted when we have a way to determine
     // the primary thumbnail from rest
-    return this.getBitstreamsByBundleName('THUMBNAIL')
-      .filter((thumbnails) => isNotEmpty(thumbnails))
-      .map((thumbnails) => thumbnails[0])
+    return this.getBitstreamsByBundleName('THUMBNAIL').pipe(
+      filter((thumbnails) => isNotEmpty(thumbnails)),
+      map((thumbnails) => thumbnails[0]),)
   }
 
   /**
@@ -68,10 +69,10 @@ export class Item extends DSpaceObject {
    * @returns {Observable<Bitstream>} the primaryBitstream of the 'THUMBNAIL' bundle
    */
   getThumbnailForOriginal(original: Bitstream): Observable<Bitstream> {
-    return this.getBitstreamsByBundleName('THUMBNAIL')
-      .map((files) => {
+    return this.getBitstreamsByBundleName('THUMBNAIL').pipe(
+      map((files) => {
         return files.find((thumbnail) => thumbnail.name.startsWith(original.name))
-      }).startWith(undefined);
+      }),startWith(undefined),);
   }
 
   /**
@@ -88,15 +89,15 @@ export class Item extends DSpaceObject {
    * @returns {Observable<Bitstream[]>} the bitstreams with the given bundleName
    */
   getBitstreamsByBundleName(bundleName: string): Observable<Bitstream[]> {
-    return this.bitstreams
-      .map((rd: RemoteData<PaginatedList<Bitstream>>) => rd.payload.page)
-      .filter((bitstreams: Bitstream[]) => hasValue(bitstreams))
-      .startWith([])
-      .map((bitstreams) => {
+    return this.bitstreams.pipe(
+      map((rd: RemoteData<PaginatedList<Bitstream>>) => rd.payload.page),
+      filter((bitstreams: Bitstream[]) => hasValue(bitstreams)),
+      startWith([]),
+      map((bitstreams) => {
         return bitstreams
           .filter((bitstream) => hasValue(bitstream))
           .filter((bitstream) => bitstream.bundleName === bundleName)
-      });
+      }),);
   }
 
 }

src/app/header/header.component.ts

@@ -1,5 +1,5 @@
 import { Component, OnInit } from '@angular/core';
-import { createSelector, Store } from '@ngrx/store';
+import { createSelector, select, Store } from '@ngrx/store';
 import { Observable } from 'rxjs';
 import { RouterReducerState } from '@ngrx/router-store';
 
@@ -33,7 +33,7 @@ export class HeaderComponent implements OnInit {
 
   ngOnInit(): void {
     // set loading
-    this.isNavBarCollapsed = this.store.select(navCollapsedSelector);
+    this.isNavBarCollapsed = this.store.pipe(select(navCollapsedSelector));
   }
 
   public toggle(): void {

src/app/header/header.effects.ts

@@ -1,5 +1,6 @@
+import { map } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
-import { Effect, Actions } from '@ngrx/effects'
+import { Effect, Actions, ofType } from '@ngrx/effects'
 import * as fromRouter from '@ngrx/router-store';
 
 import { HostWindowActionTypes } from '../shared/host-window.actions';
@@ -9,12 +10,16 @@ import { HeaderCollapseAction } from './header.actions';
 export class HeaderEffects {
 
   @Effect() resize$ = this.actions$
-    .ofType(HostWindowActionTypes.RESIZE)
-    .map(() => new HeaderCollapseAction());
+    .pipe(
+      ofType(HostWindowActionTypes.RESIZE),
+      map(() => new HeaderCollapseAction())
+    );
 
   @Effect() routeChange$ = this.actions$
-    .ofType(fromRouter.ROUTER_NAVIGATION)
-    .map(() => new HeaderCollapseAction());
+    .pipe(
+      ofType(fromRouter.ROUTER_NAVIGATION),
+      map(() => new HeaderCollapseAction())
+    );
 
   constructor(private actions$: Actions) {
 

src/app/shared/auth-nav-menu/auth-nav-menu.component.ts

@@ -1,13 +1,19 @@
+import { of as observableOf, Observable } from 'rxjs';
+
+import { map, filter } from 'rxjs/operators';
 import { Component, OnInit } from '@angular/core';
-import { Observable } from 'rxjs';
 import { RouterReducerState } from '@ngrx/router-store';
-import { Store } from '@ngrx/store';
+import { select, Store } from '@ngrx/store';
 
 import { fadeInOut, fadeOut } from '../animations/fade';
 import { HostWindowService } from '../host-window.service';
 import { AppState, routerStateSelector } from '../../app.reducer';
 import { isNotUndefined } from '../empty.util';
-import { getAuthenticatedUser, isAuthenticated, isAuthenticationLoading } from '../../core/auth/selectors';
+import {
+  getAuthenticatedUser,
+  isAuthenticated,
+  isAuthenticationLoading
+} from '../../core/auth/selectors';
 import { Eperson } from '../../core/eperson/models/eperson.model';
 import { LOGIN_ROUTE, LOGOUT_ROUTE } from '../../core/auth/auth.service';
 
@@ -32,7 +38,7 @@ export class AuthNavMenuComponent implements OnInit {
 
   public isXsOrSm$: Observable<boolean>;
 
-  public showAuth = Observable.of(false);
+  public showAuth = observableOf(false);
 
   public user: Observable<Eperson>;
 
@@ -43,17 +49,19 @@ export class AuthNavMenuComponent implements OnInit {
 
   ngOnInit(): void {
     // set isAuthenticated
-    this.isAuthenticated = this.store.select(isAuthenticated);
+    this.isAuthenticated = this.store.pipe(select(isAuthenticated));
 
     // set loading
-    this.loading = this.store.select(isAuthenticationLoading);
+    this.loading = this.store.pipe(select(isAuthenticationLoading));
 
-    this.user = this.store.select(getAuthenticatedUser);
+    this.user = this.store.pipe(select(getAuthenticatedUser));
 
-    this.showAuth = this.store.select(routerStateSelector)
-      .filter((router: RouterReducerState) => isNotUndefined(router) && isNotUndefined(router.state))
-      .map((router: RouterReducerState) => {
+    this.showAuth = this.store.pipe(
+      select(routerStateSelector),
+      filter((router: RouterReducerState) => isNotUndefined(router) && isNotUndefined(router.state)),
+      map((router: RouterReducerState) => {
         return !router.state.url.startsWith(LOGIN_ROUTE) && !router.state.url.startsWith(LOGOUT_ROUTE);
-      });
+      })
+    );
   }
 }

src/app/shared/form/builder/ds-dynamic-form-ui/ds-dynamic-form-control.component.ts

@@ -1,24 +1,16 @@
 import {
-  ChangeDetectorRef,
   Component,
+  ComponentFactoryResolver,
   ContentChildren,
   EventEmitter,
   Input,
   OnChanges,
   Output,
   QueryList,
-  SimpleChanges
+  SimpleChanges, Type
 } from '@angular/core';
 import { FormGroup } from '@angular/forms';
 import {
-  DynamicDatePickerModel,
-  DynamicFormControlComponent,
-  DynamicFormControlEvent,
-  DynamicFormControlModel,
-  DynamicFormLayout,
-  DynamicFormLayoutService,
-  DynamicFormValidationService,
-  DynamicTemplateDirective,
   DYNAMIC_FORM_CONTROL_TYPE_ARRAY,
   DYNAMIC_FORM_CONTROL_TYPE_CHECKBOX,
   DYNAMIC_FORM_CONTROL_TYPE_CHECKBOX_GROUP,
@@ -29,6 +21,14 @@ import {
   DYNAMIC_FORM_CONTROL_TYPE_SELECT,
   DYNAMIC_FORM_CONTROL_TYPE_TEXTAREA,
   DYNAMIC_FORM_CONTROL_TYPE_TIMEPICKER,
+  DynamicDatePickerModel, DynamicFormControl,
+  DynamicFormControlContainerComponent,
+  DynamicFormControlEvent,
+  DynamicFormControlModel,
+  DynamicFormLayout,
+  DynamicFormLayoutService,
+  DynamicFormValidationService,
+  DynamicTemplateDirective,
 } from '@ng-dynamic-forms/core';
 import { DYNAMIC_FORM_CONTROL_TYPE_TYPEAHEAD } from './models/typeahead/dynamic-typeahead.model';
 import { DYNAMIC_FORM_CONTROL_TYPE_SCROLLABLE_DROPDOWN } from './models/scrollable-dropdown/dynamic-scrollable-dropdown.model';
@@ -38,7 +38,6 @@ import { DYNAMIC_FORM_CONTROL_TYPE_DSDATEPICKER } from './models/date-picker/dat
 import { DYNAMIC_FORM_CONTROL_TYPE_LOOKUP } from './models/lookup/dynamic-lookup.model';
 import { DynamicListCheckboxGroupModel } from './models/list/dynamic-list-checkbox-group.model';
 import { DynamicListRadioGroupModel } from './models/list/dynamic-list-radio-group.model';
-import { isNotEmpty } from '../../../empty.util';
 import { DYNAMIC_FORM_CONTROL_TYPE_LOOKUP_NAME } from './models/lookup/dynamic-lookup-name.model';
 
 export const enum NGBootstrapFormControlType {
@@ -69,11 +68,11 @@ export const enum NGBootstrapFormControlType {
   styleUrls: ['../../form.component.scss', './ds-dynamic-form.component.scss'],
   templateUrl: './ds-dynamic-form-control.component.html'
 })
-export class DsDynamicFormControlComponent extends DynamicFormControlComponent implements OnChanges {
+export class DsDynamicFormControlComponent extends DynamicFormControlContainerComponent implements OnChanges {
 
-    @ContentChildren(DynamicTemplateDirective) contentTemplateList: QueryList<DynamicTemplateDirective>;
-    // tslint:disable-next-line:no-input-rename
-    @Input('templates') inputTemplateList: QueryList<DynamicTemplateDirective>;
+  @ContentChildren(DynamicTemplateDirective) contentTemplateList: QueryList<DynamicTemplateDirective>;
+  // tslint:disable-next-line:no-input-rename
+  @Input('templates') inputTemplateList: QueryList<DynamicTemplateDirective>;
 
   @Input() formId: string;
   @Input() asBootstrapFormGroup = true;
@@ -90,6 +89,7 @@ export class DsDynamicFormControlComponent extends DynamicFormControlComponent i
   @Output('dfFocus') focus: EventEmitter<DynamicFormControlEvent> = new EventEmitter<DynamicFormControlEvent>();
   /* tslint:enable:no-output-rename */
 
+  componentType: Type<DynamicFormControl> | null;
   type: NGBootstrapFormControlType | null;
 
   static getFormControlType(model: DynamicFormControlModel): NGBootstrapFormControlType | null {
@@ -154,10 +154,10 @@ export class DsDynamicFormControlComponent extends DynamicFormControlComponent i
     }
   }
 
-  constructor(protected changeDetectorRef: ChangeDetectorRef, protected layoutService: DynamicFormLayoutService,
+  constructor(protected componentFactoryResolver: ComponentFactoryResolver, protected layoutService: DynamicFormLayoutService,
               protected validationService: DynamicFormValidationService) {
 
-    super(changeDetectorRef, layoutService, validationService);
+    super(componentFactoryResolver, layoutService, validationService);
   }
 
   ngOnChanges(changes: SimpleChanges) {
@@ -170,9 +170,4 @@ export class DsDynamicFormControlComponent extends DynamicFormControlComponent i
     }
   }
 
-  onChangeLanguage(event) {
-    if (isNotEmpty((this.model as any).value)) {
-      this.onValueChange(event);
-    }
-  }
 }

src/app/shared/form/builder/ds-dynamic-form-ui/ds-dynamic-form.component.ts

@@ -9,13 +9,13 @@ import {
 } from '@angular/core';
 import { FormGroup } from '@angular/forms';
 import {
-  DynamicFormComponent,
+  DynamicFormComponent, DynamicFormControlContainerComponent,
   DynamicFormControlEvent,
   DynamicFormControlModel,
-    DynamicFormLayout,
-    DynamicFormLayoutService,
-    DynamicFormService,
-    DynamicTemplateDirective,
+  DynamicFormLayout,
+  DynamicFormLayoutService,
+  DynamicFormService,
+  DynamicTemplateDirective,
 } from '@ng-dynamic-forms/core';
 import { DsDynamicFormControlComponent } from './ds-dynamic-form-control.component';
 import { FormBuilderService } from '../form-builder.service';
@@ -39,9 +39,10 @@ export class DsDynamicFormComponent extends DynamicFormComponent {
 
   @ContentChildren(DynamicTemplateDirective) templates: QueryList<DynamicTemplateDirective>;
 
-  @ViewChildren(DsDynamicFormControlComponent) components: QueryList<DsDynamicFormControlComponent>;
+  @ViewChildren(DsDynamicFormControlComponent) components: QueryList<DynamicFormControlContainerComponent>;
+
+  constructor(protected formService: FormBuilderService, protected layoutService: DynamicFormLayoutService) {
+    super(formService, layoutService);
+  }
 
-    constructor(protected formService: FormBuilderService, protected layoutService: DynamicFormLayoutService) {
-        super(formService, layoutService);
-    }
 }

src/app/shared/form/builder/ds-dynamic-form-ui/models/dynamic-group/dynamic-group.components.ts

@@ -1,3 +1,4 @@
+import {of as observableOf,  Observable ,  Subscription } from 'rxjs';
 import {
   ChangeDetectorRef,
   Component,
@@ -9,8 +10,6 @@ import {
   Output,
   ViewChild
 } from '@angular/core';
-
-import { Observable ,  Subscription } from 'rxjs';
 import { DynamicFormControlModel, DynamicFormGroupModel, DynamicInputModel } from '@ng-dynamic-forms/core';
 import { isEqual } from 'lodash';
 
@@ -48,7 +47,7 @@ export class DsDynamicGroupComponent implements OnDestroy, OnInit {
   @Output() focus: EventEmitter<any> = new EventEmitter<any>();
 
   public chips: Chips;
-  public formCollapsed = Observable.of(false);
+  public formCollapsed = observableOf(false);
   public formModel: DynamicFormControlModel[];
   public editMode = false;
 
@@ -66,7 +65,7 @@ export class DsDynamicGroupComponent implements OnDestroy, OnInit {
   ngOnInit() {
     const config = {rows: this.model.formConfiguration} as SubmissionFormsModel;
     if (!this.model.isEmpty()) {
-      this.formCollapsed = Observable.of(true);
+      this.formCollapsed = observableOf(true);
     }
     this.model.valueUpdates.subscribe((value: any[]) => {
       if ((isNotEmpty(value) && !(value.length === 1 && hasOnlyEmptyProperties(value[0])))) {
@@ -151,12 +150,12 @@ export class DsDynamicGroupComponent implements OnDestroy, OnInit {
   }
 
   collapseForm() {
-    this.formCollapsed = Observable.of(true);
+    this.formCollapsed = observableOf(true);
     this.clear();
   }
 
   expandForm() {
-    this.formCollapsed = Observable.of(false);
+    this.formCollapsed = observableOf(false);
   }
 
   clear() {
@@ -167,7 +166,7 @@ export class DsDynamicGroupComponent implements OnDestroy, OnInit {
     }
     this.resetForm();
     if (!this.model.isEmpty()) {
-      this.formCollapsed = Observable.of(true);
+      this.formCollapsed = observableOf(true);
     }
   }
 

src/app/shared/form/builder/ds-dynamic-form-ui/models/list/dynamic-list.component.ts

@@ -99,7 +99,7 @@ export class DsDynamicListComponent implements OnInit {
           const value = option.id || option.value;
           const checked: boolean = isNotEmpty(findKey(
             this.model.value,
-            {value: option.value}));
+            (v) => v.value === option.value));
 
           const item: ListItem = {
             id: value,

src/app/shared/form/builder/ds-dynamic-form-ui/models/lookup/dynamic-lookup.component.ts

@@ -1,3 +1,5 @@
+
+import {distinctUntilChanged} from 'rxjs/operators';
 import { ChangeDetectorRef, Component, EventEmitter, Input, OnDestroy, OnInit, Output } from '@angular/core';
 import { FormGroup } from '@angular/forms';
 
@@ -137,8 +139,8 @@ export class DsDynamicLookupComponent implements OnDestroy, OnInit {
     this.searchOptions.query = this.getCurrentValue();
 
     this.loading = true;
-    this.authorityService.getEntriesByName(this.searchOptions)
-      .distinctUntilChanged()
+    this.authorityService.getEntriesByName(this.searchOptions).pipe(
+      distinctUntilChanged())
       .subscribe((object: IntegrationData) => {
         this.optionsList = object.payload;
         this.pageInfo = object.pageInfo;

src/app/shared/form/builder/ds-dynamic-form-ui/models/scrollable-dropdown/dynamic-scrollable-dropdown.component.ts

@@ -1,3 +1,5 @@
+
+import {tap} from 'rxjs/operators';
 import { ChangeDetectorRef, Component, EventEmitter, Input, OnInit, Output, ViewChild } from '@angular/core';
 import { FormGroup } from '@angular/forms';
 
@@ -66,8 +68,8 @@ export class DsDynamicScrollableDropdownComponent implements OnInit {
     if (!this.loading && this.pageInfo.currentPage <= this.pageInfo.totalPages) {
       this.loading = true;
       this.searchOptions.currentPage++;
-      this.authorityService.getEntriesByName(this.searchOptions)
-        .do(() => this.loading = false)
+      this.authorityService.getEntriesByName(this.searchOptions).pipe(
+        tap(() => this.loading = false))
         .subscribe((object: IntegrationData) => {
           this.optionsList = this.optionsList.concat(object.payload);
           this.pageInfo = object.pageInfo;

src/app/shared/form/builder/ds-dynamic-form-ui/models/tag/dynamic-tag.component.ts

@@ -1,7 +1,9 @@
+
+import {of as observableOf,  Observable } from 'rxjs';
+
+import {catchError, debounceTime, distinctUntilChanged, tap, switchMap, map, merge} from 'rxjs/operators';
 import { ChangeDetectorRef, Component, EventEmitter, Inject, Input, OnInit, Output } from '@angular/core';
 import { FormGroup } from '@angular/forms';
-
-import { Observable } from 'rxjs';
 import { NgbTypeaheadSelectItemEvent } from '@ng-bootstrap/ng-bootstrap';
 
 import { AuthorityService } from '../../../../../../core/integration/authority.service';
@@ -40,33 +42,33 @@ export class DsDynamicTagComponent implements OnInit {
   formatter = (x: { display: string }) => x.display;
 
   search = (text$: Observable<string>) =>
-    text$
-      .debounceTime(300)
-      .distinctUntilChanged()
-      .do(() => this.changeSearchingStatus(true))
-      .switchMap((term) => {
+    text$.pipe(
+      debounceTime(300),
+      distinctUntilChanged(),
+      tap(() => this.changeSearchingStatus(true)),
+      switchMap((term) => {
         if (term === '' || term.length < this.model.minChars) {
-          return Observable.of({list: []});
+          return observableOf({list: []});
         } else {
           this.searchOptions.query = term;
-          return this.authorityService.getEntriesByName(this.searchOptions)
-            .map((authorities) => {
+          return this.authorityService.getEntriesByName(this.searchOptions).pipe(
+            map((authorities) => {
               // @TODO Pagination for authority is not working, to refactor when it will be fixed
               return {
                 list: authorities.payload,
                 pageInfo: authorities.pageInfo
               };
-            })
-            .do(() => this.searchFailed = false)
-            .catch(() => {
+            }),
+            tap(() => this.searchFailed = false),
+            catchError(() => {
               this.searchFailed = true;
-              return Observable.of({list: []});
-            });
+              return observableOf({list: []});
+            }),);
         }
-      })
-      .map((results) => results.list)
-      .do(() => this.changeSearchingStatus(false))
-      .merge(this.hideSearchingWhenUnsubscribed);
+      }),
+      map((results) => results.list),
+      tap(() => this.changeSearchingStatus(false)),
+      merge(this.hideSearchingWhenUnsubscribed),);
 
   constructor(@Inject(GLOBAL_CONFIG) protected EnvConfig: GlobalConfig,
               private authorityService: AuthorityService,

src/app/shared/form/builder/ds-dynamic-form-ui/models/typeahead/dynamic-typeahead.component.ts

@@ -1,7 +1,9 @@
+
+import {of as observableOf,  Observable } from 'rxjs';
+
+import {distinctUntilChanged, switchMap, tap, filter, catchError, debounceTime, merge, map} from 'rxjs/operators';
 import { ChangeDetectorRef, Component, EventEmitter, Input, OnInit, Output } from '@angular/core';
 import { FormGroup } from '@angular/forms';
-
-import { Observable } from 'rxjs';
 import { NgbTypeaheadSelectItemEvent } from '@ng-bootstrap/ng-bootstrap';
 
 import { AuthorityService } from '../../../../../../core/integration/authority.service';
@@ -37,33 +39,33 @@ export class DsDynamicTypeaheadComponent implements OnInit {
   };
 
   search = (text$: Observable<string>) =>
-    text$
-      .debounceTime(300)
-      .distinctUntilChanged()
-      .do(() => this.changeSearchingStatus(true))
-      .switchMap((term) => {
+    text$.pipe(
+      debounceTime(300),
+      distinctUntilChanged(),
+      tap(() => this.changeSearchingStatus(true)),
+      switchMap((term) => {
         if (term === '' || term.length < this.model.minChars) {
-          return Observable.of({list: []});
+          return observableOf({list: []});
         } else {
           this.searchOptions.query = term;
-          return this.authorityService.getEntriesByName(this.searchOptions)
-            .map((authorities) => {
+          return this.authorityService.getEntriesByName(this.searchOptions).pipe(
+            map((authorities) => {
               // @TODO Pagination for authority is not working, to refactor when it will be fixed
               return {
                 list: authorities.payload,
                 pageInfo: authorities.pageInfo
               };
-            })
-            .do(() => this.searchFailed = false)
-            .catch(() => {
+            }),
+            tap(() => this.searchFailed = false),
+            catchError(() => {
               this.searchFailed = true;
-              return Observable.of({list: []});
-            });
+              return observableOf({list: []});
+            }),);
         }
-      })
-      .map((results) => results.list)
-      .do(() => this.changeSearchingStatus(false))
-      .merge(this.hideSearchingWhenUnsubscribed);
+      }),
+      map((results) => results.list),
+      tap(() => this.changeSearchingStatus(false)),
+      merge(this.hideSearchingWhenUnsubscribed),);
 
   constructor(private authorityService: AuthorityService, private cdr: ChangeDetectorRef) {
   }
@@ -74,8 +76,8 @@ export class DsDynamicTypeaheadComponent implements OnInit {
       this.model.authorityOptions.scope,
       this.model.authorityOptions.name,
       this.model.authorityOptions.metadata);
-    this.group.get(this.model.id).valueChanges
-      .filter((value) => this.currentValue !== value)
+    this.group.get(this.model.id).valueChanges.pipe(
+      filter((value) => this.currentValue !== value))
       .subscribe((value) => {
         this.currentValue = value;
       });

src/app/shared/form/form.component.ts

@@ -1,3 +1,5 @@
+
+import {distinctUntilChanged, map, filter} from 'rxjs/operators';
 import { ChangeDetectorRef, Component, EventEmitter, Input, OnDestroy, OnInit, Output } from '@angular/core';
 import { AbstractControl, FormArray, FormControl, FormGroup } from '@angular/forms';
 
@@ -8,7 +10,7 @@ import {
   DynamicFormGroupModel,
   DynamicFormLayout,
 } from '@ng-dynamic-forms/core';
-import { Store } from '@ngrx/store';
+import { select, Store } from '@ngrx/store';
 import { findIndex } from 'lodash';
 
 import { AppState } from '../../app.reducer';
@@ -143,8 +145,8 @@ export class FormComponent implements OnDestroy, OnInit {
 
     this.formValid = this.getFormGroupValidStatus();
 
-    this.subs.push(this.formGroup.statusChanges
-      .filter((currentStatus) => this.formValid !== this.getFormGroupValidStatus())
+    this.subs.push(this.formGroup.statusChanges.pipe(
+      filter((currentStatus) => this.formValid !== this.getFormGroupValidStatus()))
       .subscribe((currentStatus) => {
         // Dispatch a FormStatusChangeAction if the form status has changed
         this.store.dispatch(new FormStatusChangeAction(this.formId, this.getFormGroupValidStatus()));
@@ -152,10 +154,11 @@ export class FormComponent implements OnDestroy, OnInit {
       }));
 
     this.subs.push(
-      this.store.select(formObjectFromIdSelector(this.formId))
-        .filter((formState: FormEntry) => !!formState && (isNotEmpty(formState.errors) || isNotEmpty(this.formErrors)))
-        .map((formState) => formState.errors)
-        .distinctUntilChanged()
+      this.store.pipe(
+        select(formObjectFromIdSelector(this.formId)),
+        filter((formState: FormEntry) => !!formState && (isNotEmpty(formState.errors) || isNotEmpty(this.formErrors))),
+        map((formState) => formState.errors),
+        distinctUntilChanged(),)
         // .delay(100) // this terrible delay is here to prevent the detection change error
         .subscribe((errors: FormError[]) => {
           const {formGroup, formModel} = this;

src/app/shared/form/form.service.ts

@@ -1,7 +1,8 @@
+import { map, distinctUntilChanged, filter } from 'rxjs/operators';
 import { Inject, Injectable } from '@angular/core';
 import { AbstractControl, FormControl, FormGroup } from '@angular/forms';
 import { Observable } from 'rxjs';
-import { Store } from '@ngrx/store';
+import { select, Store } from '@ngrx/store';
 
 import { AppState } from '../../app.reducer';
 import { formObjectFromIdSelector } from './selectors';
@@ -25,39 +26,47 @@ export class FormService {
    * Method to retrieve form's status from state
    */
   public isValid(formId: string): Observable<boolean> {
-    return this.store.select(formObjectFromIdSelector(formId))
-      .filter((state) => isNotUndefined(state))
-      .map((state) => state.valid)
-      .distinctUntilChanged();
+    return this.store.pipe(
+      select(formObjectFromIdSelector(formId)),
+      filter((state) => isNotUndefined(state)),
+      map((state) => state.valid),
+      distinctUntilChanged()
+    );
   }
 
   /**
    * Method to retrieve form's data from state
    */
   public getFormData(formId: string): Observable<any> {
-    return this.store.select(formObjectFromIdSelector(formId))
-      .filter((state) => isNotUndefined(state))
-      .map((state) => state.data)
-      .distinctUntilChanged();
+    return this.store.pipe(
+      select(formObjectFromIdSelector(formId)),
+      filter((state) => isNotUndefined(state)),
+      map((state) => state.data),
+      distinctUntilChanged()
+    );
   }
 
   /**
    * Method to retrieve form's errors from state
    */
   public getFormErrors(formId: string): Observable<any> {
-    return this.store.select(formObjectFromIdSelector(formId))
-      .filter((state) => isNotUndefined(state))
-      .map((state) => state.errors)
-      .distinctUntilChanged();
+    return this.store.pipe(
+      select(formObjectFromIdSelector(formId)),
+      filter((state) => isNotUndefined(state)),
+      map((state) => state.errors),
+      distinctUntilChanged()
+    );
   }
 
   /**
    * Method to retrieve form's data from state
    */
   public isFormInitialized(formId: string): Observable<boolean> {
-    return this.store.select(formObjectFromIdSelector(formId))
-      .distinctUntilChanged()
-      .map((state) => isNotUndefined(state));
+    return this.store.pipe(
+      select(formObjectFromIdSelector(formId)),
+      distinctUntilChanged(),
+      map((state) => isNotUndefined(state))
+    );
   }
 
   public getUniqueId(formId): string {
@@ -71,7 +80,7 @@ export class FormService {
     Object.keys(formGroup.controls).forEach((field) => {
       const control = formGroup.get(field);
       if (control instanceof FormControl) {
-        control.markAsTouched({onlySelf: true});
+        control.markAsTouched({ onlySelf: true });
       } else if (control instanceof FormGroup) {
         this.validateAllFormFields(control);
       }

src/app/shared/host-window.service.ts

@@ -1,8 +1,9 @@
-import { distinctUntilChanged, map } from 'rxjs/operators';
+import { combineLatest as observableCombineLatest, Observable } from 'rxjs';
+
+import { filter, distinctUntilChanged, map } from 'rxjs/operators';
 import { HostWindowState } from './host-window.reducer';
 import { Injectable } from '@angular/core';
-import { createSelector, Store } from '@ngrx/store';
-import { Observable } from 'rxjs';
+import { createSelector, select, Store } from '@ngrx/store';
 
 import { hasValue } from './empty.util';
 import { AppState } from '../app.reducer';
@@ -35,8 +36,10 @@ export class HostWindowService {
   }
 
   private getWidthObs(): Observable<number> {
-    return this.store.select(widthSelector)
-      .filter((width) => hasValue(width));
+    return this.store.pipe(
+      select(widthSelector),
+      filter((width) => hasValue(width))
+    );
   }
 
   get widthCategory(): Observable<WidthCategory> {
@@ -94,10 +97,10 @@ export class HostWindowService {
   }
 
   isXsOrSm(): Observable<boolean> {
-    return Observable.combineLatest(
-        this.isXs(),
-        this.isSm(),
-        ((isXs, isSm) => isXs || isSm)
-      ).distinctUntilChanged();
+    return observableCombineLatest(
+      this.isXs(),
+      this.isSm(),
+      ((isXs, isSm) => isXs || isSm)
+    ).pipe(distinctUntilChanged());
   }
 }

src/app/shared/log-in/log-in.component.ts

@@ -1,12 +1,15 @@
+import { filter, takeWhile, map } from 'rxjs/operators';
 import { Component, OnDestroy, OnInit } from '@angular/core';
 import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 
-import { Store } from '@ngrx/store';
+import { select, Store } from '@ngrx/store';
 import { Observable } from 'rxjs';
 
 
-
-import { AuthenticateAction, ResetAuthenticationMessagesAction } from '../../core/auth/auth.actions';
+import {
+  AuthenticateAction,
+  ResetAuthenticationMessagesAction
+} from '../../core/auth/auth.actions';
 
 import {
   getAuthenticationError,
@@ -99,7 +102,7 @@ export class LogInComponent implements OnDestroy, OnInit {
    */
   public ngOnInit() {
     // set isAuthenticated
-    this.isAuthenticated = this.store.select(isAuthenticated);
+    this.isAuthenticated = this.store.pipe(select(isAuthenticated));
 
     // set formGroup
     this.form = this.formBuilder.group({
@@ -108,29 +111,35 @@ export class LogInComponent implements OnDestroy, OnInit {
     });
 
     // set error
-    this.error = this.store.select(getAuthenticationError)
-      .map((error) => {
+    this.error = this.store.pipe(select(
+      getAuthenticationError),
+      map((error) => {
         this.hasError = (isNotEmpty(error));
         return error;
-      });
+      })
+    );
 
     // set error
-    this.message = this.store.select(getAuthenticationInfo)
-      .map((message) => {
+    this.message = this.store.pipe(
+      select(getAuthenticationInfo),
+      map((message) => {
         this.hasMessage = (isNotEmpty(message));
         return message;
-      });
+      })
+    );
 
     // set loading
-    this.loading = this.store.select(isAuthenticationLoading);
+    this.loading = this.store.pipe(select(isAuthenticationLoading));
 
     // subscribe to success
-    this.store.select(isAuthenticated)
-      .takeWhile(() => this.alive)
-      .filter((authenticated) => authenticated)
+    this.store.pipe(
+      select(isAuthenticated),
+      takeWhile(() => this.alive),
+      filter((authenticated) => authenticated),)
       .subscribe(() => {
-        this.authService.redirectToPreviousUrl();
-      });
+          this.authService.redirectToPreviousUrl();
+        }
+      );
   }
 
   /**

src/app/shared/log-out/log-out.component.ts

@@ -2,7 +2,7 @@ import { Component, OnDestroy, OnInit } from '@angular/core';
 import { Router } from '@angular/router';
 
 // @ngrx
-import { Store } from '@ngrx/store';
+import { select, Store } from '@ngrx/store';
 
 // actions
 import { LogOutAction } from '../../core/auth/auth.actions';
@@ -48,7 +48,8 @@ export class LogOutComponent implements OnDestroy, OnInit {
    * @param {Store<State>} store
    */
   constructor(private router: Router,
-              private store: Store<AppState>) { }
+              private store: Store<AppState>) {
+  }
 
   /**
    *  Lifecycle hook that is called when a directive, pipe or service is destroyed.
@@ -62,10 +63,10 @@ export class LogOutComponent implements OnDestroy, OnInit {
    */
   ngOnInit() {
     // set error
-    this.error = this.store.select(getLogOutError);
+    this.error = this.store.pipe(select(getLogOutError));
 
     // set loading
-    this.loading = this.store.select(isAuthenticationLoading);
+    this.loading = this.store.pipe(select(isAuthenticationLoading));
   }
 
   /**

src/app/shared/mocks/mock-host-window-service.ts

@@ -1,4 +1,4 @@
-import { Observable } from 'rxjs';
+import {of as observableOf,  Observable } from 'rxjs';
 
 // declare a stub service
 export class MockHostWindowService {
@@ -14,10 +14,10 @@ export class MockHostWindowService {
   }
 
   isXs(): Observable<boolean> {
-    return Observable.of(this.width < 576);
+    return observableOf(this.width < 576);
   }
 
   isSm(): Observable<boolean> {
-    return Observable.of(this.width < 768);
+    return observableOf(this.width < 768);
   }
 }

src/app/shared/mocks/mock-item.ts

@@ -1,4 +1,4 @@
-import { Observable } from 'rxjs';
+import {of as observableOf,  Observable } from 'rxjs';
 
 import { Item } from '../../core/shared/item.model';
 
@@ -9,7 +9,7 @@ export const MockItem: Item = Object.assign(new Item(), {
   isArchived: true,
   isDiscoverable: true,
   isWithdrawn: false,
-  bitstreams: Observable.of({
+  bitstreams: observableOf({
     self: 'dspace-angular://aggregated/object/1507836003548',
     requestPending: false,
     responsePending: false,
@@ -28,7 +28,7 @@ export const MockItem: Item = Object.assign(new Item(), {
         {
           sizeBytes: 10201,
           content: 'https://dspace7.4science.it/dspace-spring-rest/api/core/bitstreams/cf9b0c8e-a1eb-4b65-afd0-567366448713/content',
-          format: Observable.of({
+          format: observableOf({
             self: 'https://dspace7.4science.it/dspace-spring-rest/api/core/bitstreamformats/10',
             requestPending: false,
             responsePending: false,
@@ -63,7 +63,7 @@ export const MockItem: Item = Object.assign(new Item(), {
         {
           sizeBytes: 31302,
           content: 'https://dspace7.4science.it/dspace-spring-rest/api/core/bitstreams/99b00f3c-1cc6-4689-8158-91965bee6b28/content',
-          format: Observable.of({
+          format: observableOf({
             self: 'https://dspace7.4science.it/dspace-spring-rest/api/core/bitstreamformats/4',
             requestPending: false,
             responsePending: false,
@@ -195,7 +195,7 @@ export const MockItem: Item = Object.assign(new Item(), {
       value: 'text'
     }
   ],
-  owningCollection: Observable.of({
+  owningCollection: observableOf({
       self: 'https://dspace7.4science.it/dspace-spring-rest/api/core/collections/1c11f3f1-ba1f-4f36-908a-3f1ea9a557eb',
       requestPending: false,
       responsePending: false,

src/app/shared/mocks/mock-request.service.ts

@@ -1,8 +1,8 @@
-import { Observable } from 'rxjs';
+import {of as observableOf,  Observable } from 'rxjs';
 import { RequestService } from '../../core/data/request.service';
 import { RequestEntry } from '../../core/data/request.reducer';
 
-export function getMockRequestService(getByHref$: Observable<RequestEntry> = Observable.of(new RequestEntry())): RequestService {
+export function getMockRequestService(getByHref$: Observable<RequestEntry> = observableOf(new RequestEntry())): RequestService {
   return jasmine.createSpyObj('requestService', {
     configure: false,
     generateRequestId: 'clients/b186e8ce-e99c-4183-bc9a-42b4821bdb78',

src/app/shared/mocks/mock-response-cache.service.ts

@@ -1,10 +1,10 @@
-import { Observable } from 'rxjs';
+import {of as observableOf,  Observable } from 'rxjs';
 import { ResponseCacheEntry } from '../../core/cache/response-cache.reducer';
 import { ResponseCacheService } from '../../core/cache/response-cache.service';
 
 export function getMockResponseCacheService(
-  add$: Observable<ResponseCacheEntry> = Observable.of(new ResponseCacheEntry()),
-  get$: Observable<ResponseCacheEntry> = Observable.of(new ResponseCacheEntry()),
+  add$: Observable<ResponseCacheEntry> = observableOf(new ResponseCacheEntry()),
+  get$: Observable<ResponseCacheEntry> = observableOf(new ResponseCacheEntry()),
   has: boolean = false
 ): ResponseCacheService {
   return jasmine.createSpyObj('ResponseCacheService', {

src/app/shared/mocks/mock-translate-loader.ts

@@ -1,8 +1,8 @@
+import {of as observableOf,  Observable } from 'rxjs';
 import { TranslateLoader } from '@ngx-translate/core';
-import { Observable } from 'rxjs';
 
 export class MockTranslateLoader implements TranslateLoader {
   getTranslation(lang: string): Observable<any> {
-    return Observable.of({});
+    return observableOf({});
   }
 }

src/app/shared/notifications/notification/notification.component.ts

@@ -1,3 +1,5 @@
+
+import {of as observableOf,  Observable } from 'rxjs';
 import {
   ChangeDetectionStrategy,
   ChangeDetectorRef,
@@ -21,7 +23,6 @@ import { fromLeftEnter, fromLeftInState, fromLeftLeave, fromLeftOutState } from
 import { fromTopEnter, fromTopInState, fromTopLeave, fromTopOutState } from '../../animations/fromTop';
 import { fadeInEnter, fadeInState, fadeOutLeave, fadeOutState } from '../../animations/fade';
 import { NotificationAnimationsStatus } from '../models/notification-animations-type';
-import { Observable } from 'rxjs';
 import { isNotEmpty } from '../../empty.util';
 
 @Component({
@@ -130,14 +131,14 @@ export class NotificationComponent implements OnInit, OnDestroy {
       let value = null;
       if (isNotEmpty(item)) {
         if (typeof item === 'string') {
-          value = Observable.of(item);
+          value = observableOf(item);
         } else if (item instanceof Observable) {
           value = item;
         } else if (typeof item === 'object' && isNotEmpty(item.value)) {
           // when notifications state is transferred from SSR to CSR,
           // Observables Object loses the instance type and become simply object,
           // so converts it again to Observable
-          value = Observable.of(item.value);
+          value = observableOf(item.value);
         }
       }
       this[key] = value

src/app/shared/notifications/notifications-board/notifications-board.component.ts

@@ -8,7 +8,7 @@ import {
   ViewEncapsulation
 } from '@angular/core';
 
-import { Store } from '@ngrx/store';
+import { select, Store } from '@ngrx/store';
 import { Subscription } from 'rxjs';
 import { difference } from 'lodash';
 
@@ -50,7 +50,7 @@ export class NotificationsBoardComponent implements OnInit, OnDestroy {
   }
 
   ngOnInit(): void {
-    this.sub = this.store.select(notificationsStateSelector)
+    this.sub = this.store.pipe(select(notificationsStateSelector))
       .subscribe((state: NotificationsState) => {
         if (state.length === 0) {
           this.notifications = [];

src/app/shared/notifications/notifications.effects.ts

@@ -12,14 +12,14 @@ export class NotificationsEffects {
    */
  /* @Effect()
   public timer: Observable<Action> = this.actions$
-    .ofType(NotificationsActionTypes.NEW_NOTIFICATION_WITH_TIMER)
+    .pipe(ofType(NotificationsActionTypes.NEW_NOTIFICATION_WITH_TIMER),
     // .debounceTime((action: any) => action.payload.options.timeOut)
-    .debounceTime(3000)
-    .map(() => new RemoveNotificationAction());
+    debounceTime(3000),
+    map(() => new RemoveNotificationAction());
      .switchMap((action: NewNotificationWithTimerAction) => Observable
       .timer(30000)
       .mapTo(() => new RemoveNotificationAction())
-    );*/
+    ));*/
 
   /**
    * @constructor

src/app/shared/notifications/notifications.service.ts

@@ -1,3 +1,5 @@
+
+import {of as observableOf,  Observable } from 'rxjs';
 import { Inject, Injectable } from '@angular/core';
 import { INotification, Notification } from './models/notification.model';
 import { NotificationType } from './models/notification-type';
@@ -5,7 +7,6 @@ import { NotificationOptions } from './models/notification-options.model';
 import { uniqueId } from 'lodash';
 import { Store } from '@ngrx/store';
 import { NewNotificationAction, RemoveAllNotificationsAction, RemoveNotificationAction } from './notifications.actions';
-import { Observable } from 'rxjs';
 import { GLOBAL_CONFIG, GlobalConfig } from '../../../config';
 
 @Injectable()
@@ -21,8 +22,8 @@ export class NotificationsService {
     this.store.dispatch(notificationAction);
   }
 
-  success(title: any = Observable.of(''),
-          content: any = Observable.of(''),
+  success(title: any = observableOf(''),
+          content: any = observableOf(''),
           options: NotificationOptions = this.getDefaultOptions(),
           html: boolean = false): INotification {
     const notification = new Notification(uniqueId(), NotificationType.Success, title, content, options, html);
@@ -30,8 +31,8 @@ export class NotificationsService {
     return notification;
   }
 
-  error(title: any = Observable.of(''),
-        content: any = Observable.of(''),
+  error(title: any = observableOf(''),
+        content: any = observableOf(''),
         options: NotificationOptions = this.getDefaultOptions(),
         html: boolean = false): INotification {
     const notification = new Notification(uniqueId(), NotificationType.Error, title, content, options, html);
@@ -39,8 +40,8 @@ export class NotificationsService {
     return notification;
   }
 
-  info(title: any = Observable.of(''),
-       content: any = Observable.of(''),
+  info(title: any = observableOf(''),
+       content: any = observableOf(''),
        options: NotificationOptions = this.getDefaultOptions(),
        html: boolean = false): INotification {
     const notification = new Notification(uniqueId(), NotificationType.Info, title, content, options, html);
@@ -48,8 +49,8 @@ export class NotificationsService {
     return notification;
   }
 
-  warning(title: any = Observable.of(''),
-          content: any = Observable.of(''),
+  warning(title: any = observableOf(''),
+          content: any = observableOf(''),
           options: NotificationOptions = this.getDefaultOptions(),
           html: boolean = false): INotification {
     const notification = new Notification(uniqueId(), NotificationType.Warning, title, content, options, html);

src/app/shared/object-collection/object-collection.component.ts

@@ -1,3 +1,5 @@
+
+import {map} from 'rxjs/operators';
 import { Component, EventEmitter,
   Input,
   OnInit,
@@ -88,11 +90,11 @@ export class ObjectCollectionComponent implements OnChanges, OnInit {
   }
 
   getViewMode(): ViewMode {
-    this.route.queryParams.map((params) => {
+    this.route.queryParams.pipe(map((params) => {
       if (isNotEmpty(params.view) && hasValue(params.view)) {
         this.currentMode = params.view;
       }
-    });
+    }));
     return this.currentMode;
   }
 

src/app/shared/object-grid/object-grid.component.ts

@@ -1,3 +1,7 @@
+
+import {combineLatest as observableCombineLatest,  BehaviorSubject ,  Observable } from 'rxjs';
+
+import {startWith,  distinctUntilChanged, map } from 'rxjs/operators';
 import {
   ChangeDetectionStrategy,
   Component,
@@ -6,8 +10,6 @@ import {
   Output,
   ViewEncapsulation
 } from '@angular/core';
-import { BehaviorSubject ,  Observable } from 'rxjs';
-import { distinctUntilChanged, map } from 'rxjs/operators';
 
 import { SortDirection, SortOptions } from '../../core/cache/models/sort-options.model';
 import { PaginatedList } from '../../core/data/paginated-list';
@@ -105,9 +107,9 @@ export class ObjectGridComponent implements OnInit {
         }
       }),
       distinctUntilChanged()
-    ).startWith(3);
+    ).pipe(startWith(3));
 
-    this.columns$ = Observable.combineLatest(
+    this.columns$ = observableCombineLatest(
       nbColumns$,
       this._objects$,
       (nbColumns, objects) => {

src/app/shared/pagination/pagination.component.ts

@@ -11,15 +11,14 @@ import {
 
 import { ActivatedRoute, Router } from '@angular/router';
 
-import { Subscription ,  Observable } from 'rxjs';
-import { isNumeric } from 'rxjs/util';
-
+import { Subscription, Observable } from 'rxjs';
 import { HostWindowService } from '../host-window.service';
 import { HostWindowState } from '../host-window.reducer';
 import { PaginationComponentOptions } from './pagination-component-options.model';
 import { SortDirection, SortOptions } from '../../core/cache/models/sort-options.model';
 import { hasValue, isNotEmpty } from '../empty.util';
 import { PageInfo } from '../../core/shared/page-info.model';
+import { isNumeric } from 'tslint';
 
 /**
  * The default pagination controls component.

src/app/shared/services/api.service.ts

@@ -1,4 +1,6 @@
 import { throwError as observableThrowError } from 'rxjs';
+import { catchError } from 'rxjs/operators';
+
 import { Injectable } from '@angular/core';
 import { HttpClient } from '@angular/common/http';
 
@@ -12,11 +14,11 @@ export class ApiService {
    * whatever domain/feature method name
    */
   get(url: string, options?: any) {
-    return this._http.get(url, options)
-      .catch((err) => {
+    return this._http.get(url, options).pipe(
+      catchError((err) => {
         console.log('Error: ', err);
         return observableThrowError(err);
-      });
+      }));
   }
 
 }

src/app/shared/services/route.service.ts

@@ -1,3 +1,5 @@
+
+import {distinctUntilChanged, map} from 'rxjs/operators';
 import { Injectable } from '@angular/core';
 import { Observable } from 'rxjs';
 import {
@@ -13,24 +15,24 @@ export class RouteService {
   }
 
   getQueryParameterValues(paramName: string): Observable<string[]> {
-    return this.route.queryParamMap.map((map) => [...map.getAll(paramName)]).distinctUntilChanged();
+    return this.route.queryParamMap.pipe(map((map) => [...map.getAll(paramName)]),distinctUntilChanged(),);
   }
 
   getQueryParameterValue(paramName: string): Observable<string> {
-    return this.route.queryParamMap.map((map) => map.get(paramName)).distinctUntilChanged();
+    return this.route.queryParamMap.pipe(map((map) => map.get(paramName)),distinctUntilChanged(),);
   }
 
   hasQueryParam(paramName: string): Observable<boolean> {
-    return this.route.queryParamMap.map((map) => map.has(paramName)).distinctUntilChanged();
+    return this.route.queryParamMap.pipe(map((map) => map.has(paramName)),distinctUntilChanged(),);
   }
 
   hasQueryParamWithValue(paramName: string, paramValue: string): Observable<boolean> {
-    return this.route.queryParamMap.map((map) => map.getAll(paramName).indexOf(paramValue) > -1).distinctUntilChanged();
+    return this.route.queryParamMap.pipe(map((map) => map.getAll(paramName).indexOf(paramValue) > -1),distinctUntilChanged(),);
   }
 
   getQueryParamsWithPrefix(prefix: string): Observable<Params> {
-    return this.route.queryParamMap
-      .map((map) => {
+    return this.route.queryParamMap.pipe(
+      map((map) => {
           const params = {};
           map.keys
             .filter((key) => key.startsWith(prefix))
@@ -38,7 +40,7 @@ export class RouteService {
               params[key] = [...map.getAll(key)];
             });
           return params;
-        })
-      .distinctUntilChanged((a, b) => JSON.stringify(a) === JSON.stringify(b));
+        }),
+      distinctUntilChanged((a, b) => JSON.stringify(a) === JSON.stringify(b)),);
   }
 }

src/app/shared/shared.module.ts

@@ -4,7 +4,12 @@ import { RouterModule } from '@angular/router';
 import { FormsModule, ReactiveFormsModule } from '@angular/forms';
 import { NouisliderModule } from 'ng2-nouislider';
 
-import { NgbDatepickerModule, NgbModule, NgbTimepickerModule, NgbTypeaheadModule } from '@ng-bootstrap/ng-bootstrap';
+import {
+  NgbDatepickerModule,
+  NgbModule,
+  NgbTimepickerModule,
+  NgbTypeaheadModule
+} from '@ng-bootstrap/ng-bootstrap';
 
 import { TranslateModule } from '@ngx-translate/core';
 
@@ -56,8 +61,6 @@ import { DsDynamicFormComponent } from './form/builder/ds-dynamic-form-ui/ds-dyn
 import { DynamicFormsCoreModule } from '@ng-dynamic-forms/core';
 import { DynamicFormsNGBootstrapUIModule } from '@ng-dynamic-forms/ui-ng-bootstrap';
 import { TextMaskModule } from 'angular2-text-mask';
-import { NotificationComponent } from './notifications/notification/notification.component';
-import { NotificationsBoardComponent } from './notifications/notifications-board/notifications-board.component';
 import { DragClickDirective } from './utils/drag-click.directive';
 import { TruncatePipe } from './utils/truncate.pipe';
 import { TruncatableComponent } from './truncatable/truncatable.component';
@@ -78,8 +81,8 @@ import { ClickOutsideDirective } from './utils/click-outside.directive';
 import { EmphasizePipe } from './utils/emphasize.pipe';
 import { InputSuggestionsComponent } from './input-suggestions/input-suggestions.component';
 import { CapitalizePipe } from './utils/capitalize.pipe';
-import { MomentModule } from 'angular2-moment';
 import { ObjectKeysPipe } from './utils/object-keys-pipe';
+import { MomentModule } from 'ngx-moment';
 
 const MODULES = [
   // Do NOT include UniversalModule, HttpModule, or JsonpModule here

src/app/shared/testing/active-router-stub.ts

@@ -1,3 +1,5 @@
+
+import {map} from 'rxjs/operators';
 import { convertToParamMap, ParamMap, Params } from '@angular/router';
 
 import { BehaviorSubject } from 'rxjs';
@@ -10,7 +12,7 @@ export class ActivatedRouteStub {
 
   params = this.subject.asObservable();
   queryParams = this.subject.asObservable();
-  queryParamMap = this.subject.asObservable().map((params: Params) => convertToParamMap(params));
+  queryParamMap = this.subject.asObservable().pipe(map((params: Params) => convertToParamMap(params)));
 
   constructor(params?: Params) {
     if (params) {

src/app/shared/testing/auth-request-service-stub.ts

@@ -1,4 +1,4 @@
-import { Observable } from 'rxjs';
+import {of as observableOf,  Observable } from 'rxjs';
 import { HttpOptions } from '../../core/dspace-rest-v2/dspace-rest-v2.service';
 import { AuthStatus } from '../../core/auth/models/auth-status.model';
 import { AuthTokenInfo } from '../../core/auth/models/auth-token-info.model';
@@ -31,7 +31,7 @@ export class AuthRequestServiceStub {
         authStatusStub.authenticated = false;
       }
     }
-    return Observable.of(authStatusStub);
+    return observableOf(authStatusStub);
   }
 
   public getRequest(method: string, options?: HttpOptions): Observable<any> {
@@ -51,7 +51,7 @@ export class AuthRequestServiceStub {
         }
         break;
     }
-    return Observable.of(authStatusStub);
+    return observableOf(authStatusStub);
   }
 
   private validateToken(token): boolean {

src/app/shared/testing/auth-service-stub.ts

@@ -1,5 +1,6 @@
+
+import {of as observableOf,  Observable } from 'rxjs';
 import { AuthStatus } from '../../core/auth/models/auth-status.model';
-import { Observable } from 'rxjs';
 import { AuthTokenInfo } from '../../core/auth/models/auth-token-info.model';
 import { EpersonMock } from './eperson-mock';
 import { Eperson } from '../../core/eperson/models/eperson.model';
@@ -20,7 +21,7 @@ export class AuthServiceStub {
       authStatus.authenticated = true;
       authStatus.token = this.token;
       authStatus.eperson = [EpersonMock];
-      return Observable.of(authStatus);
+      return observableOf(authStatus);
     } else {
       console.log('error');
       throw(new Error('Message Error test'));
@@ -29,7 +30,7 @@ export class AuthServiceStub {
 
   public authenticatedUser(token: AuthTokenInfo): Observable<Eperson> {
     if (token.accessToken === 'token_test') {
-      return Observable.of(EpersonMock);
+      return observableOf(EpersonMock);
     } else {
       throw(new Error('Message Error test'));
     }
@@ -44,11 +45,11 @@ export class AuthServiceStub {
   }
 
   public hasValidAuthenticationToken(): Observable<AuthTokenInfo> {
-    return Observable.of(this.token);
+    return observableOf(this.token);
   }
 
   public logout(): Observable<boolean> {
-    return Observable.of(true);
+    return observableOf(true);
   }
 
   public isTokenExpired(token?: AuthTokenInfo): boolean {
@@ -70,11 +71,11 @@ export class AuthServiceStub {
   }
 
   public isTokenExpiring(): Observable<boolean> {
-    return Observable.of(false);
+    return observableOf(false);
   }
 
   public refreshAuthenticationToken(token: AuthTokenInfo): Observable<AuthTokenInfo> {
-    return Observable.of(this.token);
+    return observableOf(this.token);
   }
 
   public redirectToPreviousUrl() {

src/app/shared/testing/authority-service-stub.ts

@@ -1,4 +1,4 @@
-import { Observable } from 'rxjs';
+import {of as observableOf,  Observable } from 'rxjs';
 import { IntegrationSearchOptions } from '../../core/integration/models/integration-options.model';
 import { IntegrationData } from '../../core/integration/integration-data';
 import { PageInfo } from '../../core/shared/page-info.model';
@@ -16,6 +16,6 @@ export class AuthorityServiceStub {
   }
 
   getEntriesByName(options: IntegrationSearchOptions) {
-    return Observable.of(new IntegrationData(new PageInfo(), this._payload));
+    return observableOf(new IntegrationData(new PageInfo(), this._payload));
   }
 }

src/app/shared/testing/hal-endpoint-service-stub.ts

@@ -1,9 +1,9 @@
-import { Observable } from 'rxjs';
+import { of as observableOf } from 'rxjs';
 
 export class HALEndpointServiceStub {
 
   constructor(private url: string) {};
   getEndpoint(path: string) {
-    return Observable.of(this.url + '/' + path);
+    return observableOf(this.url + '/' + path);
   }
 }

src/app/shared/testing/host-window-service-stub.ts

@@ -1,4 +1,4 @@
-import { Observable } from 'rxjs';
+import {of as observableOf,  Observable } from 'rxjs';
 
 // declare a stub service
 export class HostWindowServiceStub {
@@ -14,7 +14,7 @@ export class HostWindowServiceStub {
   }
 
   isXs(): Observable<boolean> {
-    return Observable.of(this.width < 576);
+    return observableOf(this.width < 576);
   }
 
   isXsOrSm(): Observable<boolean> {

src/app/shared/testing/mock-store.ts

@@ -1,3 +1,5 @@
+
+import {map} from 'rxjs/operators';
 import { Action } from '@ngrx/store';
 import { Observable ,  BehaviorSubject } from 'rxjs';
 
@@ -12,8 +14,8 @@ export class MockStore<T> extends BehaviorSubject<T> {
   };
 
   select = <R>(pathOrMapFn: any): Observable<T> => {
-    return this.asObservable()
-      .map((value) => pathOrMapFn.projector(value))
+    return this.asObservable().pipe(
+      map((value) => pathOrMapFn.projector(value)))
   };
 
   nextState(_newState: T) {

src/app/shared/testing/mock-translate-loader.ts

@@ -1,8 +1,8 @@
+import {of as observableOf,  Observable } from 'rxjs';
 import { TranslateLoader } from '@ngx-translate/core';
-import { Observable } from 'rxjs';
 
 export class MockTranslateLoader implements TranslateLoader {
   getTranslation(lang: string): Observable<any> {
-    return Observable.of({});
+    return observableOf({});
   }
 }

src/app/shared/testing/notifications-service-stub.ts

@@ -1,32 +1,32 @@
-import { Observable } from 'rxjs';
+import {of as observableOf,  Observable } from 'rxjs';
 import { INotification } from '../notifications/models/notification.model';
 import { NotificationOptions } from '../notifications/models/notification-options.model';
 
 export class NotificationsServiceStub {
 
-  success(title: any = Observable.of(''),
-          content: any = Observable.of(''),
+  success(title: any = observableOf(''),
+          content: any = observableOf(''),
           options: NotificationOptions = this.getDefaultOptions(),
           html?: any): INotification {
     return
   }
 
-  error(title: any = Observable.of(''),
-        content: any = Observable.of(''),
+  error(title: any = observableOf(''),
+        content: any = observableOf(''),
         options: NotificationOptions = this.getDefaultOptions(),
         html?: any): INotification {
     return
   }
 
-  info(title: any = Observable.of(''),
-       content: any = Observable.of(''),
+  info(title: any = observableOf(''),
+       content: any = observableOf(''),
        options: NotificationOptions = this.getDefaultOptions(),
        html?: any): INotification {
     return
   }
 
-  warning(title: any = Observable.of(''),
-          content: any = Observable.of(''),
+  warning(title: any = observableOf(''),
+          content: any = observableOf(''),
           options: NotificationOptions = this.getDefaultOptions(),
           html?: any): INotification {
     return

src/app/shared/testing/search-service-stub.ts

@@ -1,4 +1,4 @@
-import { Observable, BehaviorSubject } from 'rxjs';
+import {of as observableOf,  Observable ,  BehaviorSubject } from 'rxjs';
 import { ViewMode } from '../../core/shared/view-mode.model';
 
 export class SearchServiceStub {
@@ -38,6 +38,6 @@ export class SearchServiceStub {
   }
 
   getFilterLabels() {
-    return Observable.of([]);
+    return observableOf([]);
   }
 }

src/app/shared/truncatable/truncatable.service.ts

@@ -1,8 +1,13 @@
+import { map } from 'rxjs/operators';
 import { Injectable } from '@angular/core';
-import { createSelector, MemoizedSelector, Store } from '@ngrx/store';
+import { createSelector, MemoizedSelector, select, Store } from '@ngrx/store';
 import { Observable } from 'rxjs';
 import { TruncatablesState, TruncatableState } from './truncatable.reducer';
-import { TruncatableExpandAction, TruncatableToggleAction, TruncatableCollapseAction } from './truncatable.actions';
+import {
+  TruncatableExpandAction,
+  TruncatableToggleAction,
+  TruncatableCollapseAction
+} from './truncatable.actions';
 import { hasValue } from '../empty.util';
 
 const truncatableStateSelector = (state: TruncatablesState) => state.truncatable;
@@ -22,14 +27,16 @@ export class TruncatableService {
    * @returns {Observable<boolean>} Emits true if the state in the store is currently collapsed for the given truncatable component
    */
   isCollapsed(id: string): Observable<boolean> {
-    return this.store.select(truncatableByIdSelector(id))
-      .map((object: TruncatableState) => {
+    return this.store.pipe(
+      select(truncatableByIdSelector(id)),
+      map((object: TruncatableState) => {
         if (object) {
           return object.collapsed;
         } else {
           return false;
         }
-      });
+      })
+    );
   }
 
   /**

src/app/shared/uploader/uploader.component.ts

@@ -1,3 +1,5 @@
+
+import {of as observableOf,  Observable } from 'rxjs';
 import {
   ChangeDetectionStrategy,
   ChangeDetectorRef,
@@ -10,7 +12,6 @@ import {
 } from '@angular/core'
 
 import { FileUploader } from 'ng2-file-upload';
-import { Observable } from 'rxjs';
 import { uniqueId } from 'lodash';
 import { ScrollToConfigOptions, ScrollToService } from '@nicky-lenaers/ngx-scroll-to';
 
@@ -60,8 +61,8 @@ export class UploaderComponent {
 
   public uploader: FileUploader;
   public uploaderId: string;
-  public isOverBaseDropZone = Observable.of(false);
-  public isOverDocumentDropZone = Observable.of(false);
+  public isOverBaseDropZone = observableOf(false);
+  public isOverDocumentDropZone = observableOf(false);
 
   @HostListener('window:dragover', ['$event'])
   onDragOver(event: any) {
@@ -70,7 +71,7 @@ export class UploaderComponent {
       // Show drop area on the page
       event.preventDefault();
       if ((event.target as any).tagName !== 'HTML') {
-        this.isOverDocumentDropZone = Observable.of(true);
+        this.isOverDocumentDropZone = observableOf(true);
       }
     }
   }
@@ -111,7 +112,7 @@ export class UploaderComponent {
     });
     this.uploader.onBeforeUploadItem = () => {
       this.onBeforeUpload();
-      this.isOverDocumentDropZone = Observable.of(false);
+      this.isOverDocumentDropZone = observableOf(false);
 
       // Move page target to the uploader
       const config: ScrollToConfigOptions = {
@@ -133,7 +134,7 @@ export class UploaderComponent {
    * Called when files are dragged on the base drop area.
    */
   public fileOverBase(isOver: boolean): void {
-    this.isOverBaseDropZone = Observable.of(isOver);
+    this.isOverBaseDropZone = observableOf(isOver);
   }
 
   /**
@@ -141,7 +142,7 @@ export class UploaderComponent {
    */
   public fileOverDocument(isOver: boolean) {
     if (!isOver) {
-      this.isOverDocumentDropZone = Observable.of(isOver);
+      this.isOverDocumentDropZone = observableOf(isOver);
     }
   }
 

src/app/shared/utils/debounce.directive.ts

@@ -1,3 +1,5 @@
+
+import {distinctUntilChanged, debounceTime, takeUntil} from 'rxjs/operators';
 import { Directive, Input, Output, EventEmitter, OnDestroy, OnInit } from '@angular/core';
 import { NgControl } from '@angular/forms';
 
@@ -44,10 +46,10 @@ export class DebounceDirective implements OnInit, OnDestroy {
    * Emit it when the debounceTime is over without new changes
    */
   ngOnInit() {
-    this.model.valueChanges
-      .takeUntil(this.subject)
-      .debounceTime(this.dsDebounce)
-      .distinctUntilChanged()
+    this.model.valueChanges.pipe(
+      takeUntil(this.subject),
+      debounceTime(this.dsDebounce),
+      distinctUntilChanged(),)
       .subscribe((modelValue) => {
         if (this.isFirstChange) {
           this.isFirstChange = false;

src/app/store.effects.ts

@@ -1,27 +1,33 @@
+import { of as observableOf } from 'rxjs';
+
+import { map } from 'rxjs/operators';
 
 
 import { Injectable } from '@angular/core';
 import { Action, Store } from '@ngrx/store';
-import { Effect, Actions } from '@ngrx/effects';
-
-import { Observable } from 'rxjs';
+import { Actions, Effect, ofType } from '@ngrx/effects';
 
 import { AppState } from './app.reducer';
-import { StoreAction, StoreActionTypes } from './store.actions';
-import { HostWindowResizeAction, HostWindowActionTypes } from './shared/host-window.actions';
+import { StoreActionTypes } from './store.actions';
+import { HostWindowResizeAction } from './shared/host-window.actions';
 
 @Injectable()
 export class StoreEffects {
 
-  @Effect({ dispatch: false }) replay = this.actions.ofType(StoreActionTypes.REPLAY).map((replayAction: Action) => {
-    // TODO: should be able to replay all actions before the browser attempts to
-    // replayAction.payload.forEach((action: Action) => {
-    //   this.store.dispatch(action);
-    // });
-    return Observable.of({});
-  });
+  @Effect({ dispatch: false }) replay = this.actions.pipe(
+    ofType(StoreActionTypes.REPLAY),
+    map((replayAction: Action) => {
+      // TODO: should be able to replay all actions before the browser attempts to
+      // replayAction.payload.forEach((action: Action) => {
+      //   this.store.dispatch(action);
+      // });
+      return observableOf({});
+    }));
 
-  @Effect() resize = this.actions.ofType(StoreActionTypes.REPLAY, StoreActionTypes.REHYDRATE).map(() => new HostWindowResizeAction(window.innerWidth, window.innerHeight));
+  @Effect() resize = this.actions.pipe(
+    ofType(StoreActionTypes.REPLAY, StoreActionTypes.REHYDRATE),
+    map(() => new HostWindowResizeAction(window.innerWidth, window.innerHeight))
+  );
 
   constructor(private actions: Actions, private store: Store<AppState>) {
 

src/modules/transfer-state/dspace-server-transfer-state.service.ts

@@ -1,3 +1,5 @@
+
+import {take} from 'rxjs/operators';
 import { Injectable } from '@angular/core';
 import { DSpaceTransferState } from './dspace-transfer-state.service';
 
@@ -6,7 +8,7 @@ export class DSpaceServerTransferState extends DSpaceTransferState {
   transfer() {
     this.transferState.onSerialize(DSpaceTransferState.NGRX_STATE, () => {
       let state;
-      this.store.take(1).subscribe((saveState: any) => {
+      this.store.pipe(take(1)).subscribe((saveState: any) => {
         state = saveState;
       });
 

yarn.lock

@@ -267,16 +267,16 @@
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-2.0.29.tgz#5002e14f75e2d71e564281df0431c8c1b4a2a36a"
 
 "@types/node@*":
-  version "10.9.1"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.9.1.tgz#06f002136fbcf51e730995149050bb3c45ee54e6"
+  version "10.9.2"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.9.2.tgz#f0ab8dced5cd6c56b26765e1c0d9e4fdcc9f2a00"
 
 "@types/node@^6.0.46":
   version "6.0.116"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-6.0.116.tgz#2f9cd62b4ecc4927e3942e2655c182eecf5b45f1"
 
 "@types/node@^9.4.6":
-  version "9.6.29"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.6.29.tgz#9b3c5b288c77fbd2ab5684d36e3528cb9ee5429f"
+  version "9.6.30"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.6.30.tgz#1ecf83eaf7ac2d0dada7a9d61a1e4e7a6183ac06"
 
 "@types/q@^0.0.32":
   version "0.0.32"
@@ -318,6 +318,10 @@
   version "0.0.30"
   resolved "https://registry.yarnpkg.com/@types/strip-json-comments/-/strip-json-comments-0.0.30.tgz#9aa30c04db212a9a0649d6ae6fd50accc40748a1"
 
+"@types/tapable@1.0.2":
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-1.0.2.tgz#e13182e1b69871a422d7863e11a4a6f5b814a4bd"
+
 "@types/uuid@^3.4.3":
   version "3.4.3"
   resolved "https://registry.yarnpkg.com/@types/uuid/-/uuid-3.4.3.tgz#121ace265f5569ce40f4f6d0ff78a338c732a754"
@@ -816,13 +820,6 @@ array-flatten@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-2.1.1.tgz#426bb9da84090c1838d812c8150af20a8331e296"
 
-array-includes@^3.0.3:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/array-includes/-/array-includes-3.0.3.tgz#184b48f62d92d7452bb31b323165c7f8bd02266d"
-  dependencies:
-    define-properties "^1.1.2"
-    es-abstract "^1.7.0"
-
 array-map@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/array-map/-/array-map-0.0.0.tgz#88a2bab73d1cf7bcd5c1b118a003f66f665fa662"
@@ -2127,7 +2124,7 @@ convert-source-map@^0.3.3:
   version "0.3.5"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-0.3.5.tgz#f1d802950af7dd2631a1febe0596550c86ab3190"
 
-convert-source-map@^1.1.1, convert-source-map@^1.5.0:
+convert-source-map@^1.5.0, convert-source-map@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
 
@@ -2960,7 +2957,7 @@ error-ex@^1.2.0, error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-es-abstract@^1.4.3, es-abstract@^1.5.1, es-abstract@^1.6.1, es-abstract@^1.7.0:
+es-abstract@^1.4.3, es-abstract@^1.5.1, es-abstract@^1.6.1:
   version "1.12.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.12.0.tgz#9dbbdd27c6856f0001421ca18782d786bf8a6165"
   dependencies:
@@ -3479,6 +3476,12 @@ find-up@^2.0.0, find-up@^2.1.0:
   dependencies:
     locate-path "^2.0.0"
 
+find-up@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-3.0.0.tgz#49169f1d7993430646da61ecc5ae355c21c97b73"
+  dependencies:
+    locate-path "^3.0.0"
+
 flatten@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
@@ -3679,8 +3682,8 @@ gaze@^1.0.0:
     globule "^1.0.0"
 
 generate-function@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.2.0.tgz#1aeac896147293d27bce65eb295ce5f3f094a292"
 
 generate-object-property@^1.1.0:
   version "1.2.0"
@@ -3763,19 +3766,9 @@ glob@^5.0.15:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^6.0.4:
-  version "6.0.4"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-6.0.4.tgz#0f08860f6a155127b2fadd4f9ce24b1aab6e4d22"
-  dependencies:
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "2 || 3"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
 glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.0, glob@^7.1.1, glob@^7.1.2, glob@~7.1.1:
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.3.tgz#3960832d3f1574108342dafd3a67b332c0969df1"
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
@@ -4135,16 +4128,16 @@ html-minifier@^3.2.3:
     relateurl "0.2.x"
     uglify-js "3.4.x"
 
-html-webpack-plugin@3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/html-webpack-plugin/-/html-webpack-plugin-3.2.0.tgz#b01abbd723acaaa7b37b6af4492ebda03d9dd37b"
+html-webpack-plugin@^4.0.0-alpha:
+  version "4.0.0-alpha"
+  resolved "https://registry.yarnpkg.com/html-webpack-plugin/-/html-webpack-plugin-4.0.0-alpha.tgz#b2c7b6d4885a209c999dfce3ffb9866e2c8c0eaa"
   dependencies:
+    "@types/tapable" "1.0.2"
     html-minifier "^3.2.3"
-    loader-utils "^0.2.16"
-    lodash "^4.17.3"
+    loader-utils "^1.1.0"
+    lodash "^4.17.10"
     pretty-error "^2.0.2"
     tapable "^1.0.0"
-    toposort "^1.0.0"
     util.promisify "1.0.0"
 
 htmlescape@^1.1.0:
@@ -5298,6 +5291,13 @@ locate-path@^2.0.0:
     p-locate "^2.0.0"
     path-exists "^3.0.0"
 
+locate-path@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
+  dependencies:
+    p-locate "^3.0.0"
+    path-exists "^3.0.0"
+
 lodash._baseassign@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/lodash._baseassign/-/lodash._baseassign-3.2.0.tgz#8c38a099500f215ad09e59f1722fd0c52bfe0a4e"
@@ -5468,7 +5468,7 @@ lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
 
-lodash@4.17.10, lodash@^4.0.0, lodash@^4.0.1, lodash@^4.13.1, lodash@^4.15.0, lodash@^4.17.10, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0, lodash@~4.17.10:
+lodash@4.17.10, lodash@^4.0.0, lodash@^4.0.1, lodash@^4.13.1, lodash@^4.15.0, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0, lodash@~4.17.10:
   version "4.17.10"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
 
@@ -5779,19 +5779,15 @@ miller-rabin@^4.0.0:
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
-"mime-db@>= 1.34.0 < 2":
+"mime-db@>= 1.34.0 < 2", mime-db@~1.36.0:
   version "1.36.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.36.0.tgz#5020478db3c7fe93aad7bbcc4dcf869c43363397"
 
-mime-db@~1.35.0:
-  version "1.35.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.35.0.tgz#0569d657466491283709663ad379a99b90d9ab47"
-
 mime-types@^2.1.11, mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19, mime-types@~2.1.7:
-  version "2.1.19"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.19.tgz#71e464537a7ef81c15f2db9d97e913fc0ff606f0"
+  version "2.1.20"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.20.tgz#930cb719d571e903738520f8470911548ca2cc19"
   dependencies:
-    mime-db "~1.35.0"
+    mime-db "~1.36.0"
 
 mime@1.4.1:
   version "1.4.1"
@@ -5965,8 +5961,8 @@ mute-stream@0.0.7:
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
 nan@^2.10.0, nan@^2.9.2:
-  version "2.10.0"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.11.0.tgz#574e360e4d954ab16966ec102c0c049fd961a099"
 
 nanomatch@^1.2.9:
   version "1.2.13"
@@ -6032,6 +6028,12 @@ ngx-infinite-scroll@6.0.1:
   dependencies:
     opencollective "^1.0.3"
 
+ngx-moment@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/ngx-moment/-/ngx-moment-3.1.0.tgz#41380b4dd8b68e7bd6d17cc6fe7f703ae506dc3a"
+  dependencies:
+    tslib "^1.9.0"
+
 ngx-pagination@3.0.3:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/ngx-pagination/-/ngx-pagination-3.0.3.tgz#314145263613738d8c544da36cd8dacc5aa89a6f"
@@ -6534,12 +6536,24 @@ p-limit@^1.0.0, p-limit@^1.1.0:
   dependencies:
     p-try "^1.0.0"
 
+p-limit@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.0.0.tgz#e624ed54ee8c460a778b3c9f3670496ff8a57aec"
+  dependencies:
+    p-try "^2.0.0"
+
 p-locate@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
   dependencies:
     p-limit "^1.1.0"
 
+p-locate@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-3.0.0.tgz#322d69a05c0264b25997d9f40cd8a891ab0064a4"
+  dependencies:
+    p-limit "^2.0.0"
+
 p-map@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
@@ -6548,6 +6562,10 @@ p-try@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
 
+p-try@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.0.0.tgz#85080bb87c64688fa47996fe8f7dfbe8211760b1"
+
 pac-proxy-agent@^2.0.1:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/pac-proxy-agent/-/pac-proxy-agent-2.0.2.tgz#90d9f6730ab0f4d2607dcdcd4d3d641aa26c3896"
@@ -8129,18 +8147,18 @@ resolve-from@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-3.0.0.tgz#b22c7af7d9d6881bc8b6e653335eebcb0a188748"
 
-resolve-url-loader@2.2.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/resolve-url-loader/-/resolve-url-loader-2.2.1.tgz#13a1396fb773edf959550e400e688f5ed32548bf"
+resolve-url-loader@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/resolve-url-loader/-/resolve-url-loader-2.3.0.tgz#e1b37034d48f22f8cfb9f04c026faaa070fdaf26"
   dependencies:
     adjust-sourcemap-loader "^1.1.0"
-    camelcase "^4.0.0"
-    convert-source-map "^1.1.1"
-    loader-utils "^1.0.0"
+    camelcase "^4.1.0"
+    convert-source-map "^1.5.1"
+    loader-utils "^1.1.0"
     lodash.defaults "^4.0.0"
     rework "^1.0.1"
     rework-visit "^1.0.0"
-    source-map "^0.5.6"
+    source-map "^0.5.7"
     urix "^0.1.0"
 
 resolve-url@^0.2.1:
@@ -8912,8 +8930,8 @@ statuses@~1.4.0:
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
 
 stdout-stream@^1.4.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/stdout-stream/-/stdout-stream-1.4.0.tgz#a2c7c8587e54d9427ea9edb3ac3f2cd522df378b"
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/stdout-stream/-/stdout-stream-1.4.1.tgz#5ac174cdd5cd726104aa0c0b2bd83815d8d535de"
   dependencies:
     readable-stream "^2.0.1"
 
@@ -9286,10 +9304,6 @@ to-string-loader@1.1.5:
   dependencies:
     loader-utils "^0.2.16"
 
-toposort@^1.0.0:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/toposort/-/toposort-1.0.7.tgz#2e68442d9f64ec720b8cc89e6443ac6caa950029"
-
 touch@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/touch/-/touch-3.1.0.tgz#fe365f5f75ec9ed4e56825e0bb76d24ab74af83b"
@@ -9326,10 +9340,10 @@ trim-right@^1.0.1:
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
 
 "true-case-path@^1.0.2":
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/true-case-path/-/true-case-path-1.0.2.tgz#7ec91130924766c7f573be3020c34f8fdfd00d62"
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/true-case-path/-/true-case-path-1.0.3.tgz#f813b5a8c86b40da59606722b144e3225799f47d"
   dependencies:
-    glob "^6.0.4"
+    glob "^7.1.2"
 
 tryer@^1.0.0:
   version "1.0.1"
@@ -9477,14 +9491,10 @@ typescript@2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.4.1.tgz#c3ccb16ddaa0b2314de031e7e6fee89e5ba346bc"
 
-typescript@^2.5.0:
+typescript@^2.5.0, typescript@^2.9.1:
   version "2.9.2"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.9.2.tgz#1cbf61d05d6b96269244eb6a3bce4bd914e0f00c"
 
-typescript@^2.9.1:
-  version "2.9.1"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.9.1.tgz#fdb19d2c67a15d11995fd15640e373e09ab09961"
-
 uglify-es@^3.3.4, uglify-es@^3.3.7:
   version "3.3.9"
   resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.3.9.tgz#0c1c4f0700bed8dbc124cdb304d2592ca203e677"
@@ -9921,18 +9931,6 @@ webpack-command@^0.4.1:
     webpack-log "^1.1.2"
     wordwrap "^1.0.0"
 
-webpack-dev-middleware@3.1.3:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.1.3.tgz#8b32aa43da9ae79368c1bf1183f2b6cf5e1f39ed"
-  dependencies:
-    loud-rejection "^1.6.0"
-    memory-fs "~0.4.1"
-    mime "^2.1.0"
-    path-is-absolute "^1.0.0"
-    range-parser "^1.0.3"
-    url-join "^4.0.0"
-    webpack-log "^1.0.1"
-
 webpack-dev-middleware@3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.2.0.tgz#a20ceef194873710052da678f3c6ee0aeed92552"
@@ -9958,11 +9956,10 @@ webpack-dev-middleware@^2.0.6:
     webpack-log "^1.0.1"
 
 webpack-dev-server@^3.1.5:
-  version "3.1.5"
-  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.5.tgz#87477252e1ac6789303fb8cd3e585fa5d508a401"
+  version "3.1.6"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.6.tgz#8617503768b1131fd539cf43c3e2e63bd34c1521"
   dependencies:
     ansi-html "0.0.7"
-    array-includes "^3.0.3"
     bonjour "^3.5.0"
     chokidar "^2.0.0"
     compression "^1.5.2"
@@ -9986,9 +9983,9 @@ webpack-dev-server@^3.1.5:
     spdy "^3.4.1"
     strip-ansi "^3.0.0"
     supports-color "^5.1.0"
-    webpack-dev-middleware "3.1.3"
-    webpack-log "^1.1.2"
-    yargs "11.0.0"
+    webpack-dev-middleware "3.2.0"
+    webpack-log "^2.0.0"
+    yargs "12.0.1"
 
 webpack-log@^1.0.1, webpack-log@^1.1.2:
   version "1.2.0"
@@ -10197,7 +10194,7 @@ y18n@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
 
-y18n@^4.0.0:
+"y18n@^3.2.1 || ^4.0.0", y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
 
@@ -10209,7 +10206,7 @@ yallist@^3.0.0, yallist@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
 
-yargs-parser@^10.0.0:
+yargs-parser@^10.0.0, yargs-parser@^10.1.0:
   version "10.1.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-10.1.0.tgz#7202265b89f7e9e9f2e5765e0fe735a905edbaa8"
   dependencies:
@@ -10227,13 +10224,13 @@ yargs-parser@^9.0.2:
   dependencies:
     camelcase "^4.1.0"
 
-yargs@11.0.0:
-  version "11.0.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.0.0.tgz#c052931006c5eee74610e5fc0354bedfd08a201b"
+yargs@12.0.1:
+  version "12.0.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.1.tgz#6432e56123bb4e7c3562115401e98374060261c2"
   dependencies:
     cliui "^4.0.0"
-    decamelize "^1.1.1"
-    find-up "^2.1.0"
+    decamelize "^2.0.0"
+    find-up "^3.0.0"
     get-caller-file "^1.0.1"
     os-locale "^2.0.0"
     require-directory "^2.1.1"
@@ -10241,8 +10238,8 @@ yargs@11.0.0:
     set-blocking "^2.0.0"
     string-width "^2.0.0"
     which-module "^2.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^9.0.2"
+    y18n "^3.2.1 || ^4.0.0"
+    yargs-parser "^10.1.0"
 
 yargs@^11.0.0:
   version "11.1.0"