Addition of SearchService that mocks an array SearchResult objects

src/app/search/search.service.ts

@@ -0,0 +1,75 @@
+import { Injectable } from '@angular/core';
+import { RemoteData } from '../core/data/remote-data';
+import { Observable } from 'rxjs/Observable';
+import { SearchResult } from './searchresult.model';
+import { ItemDataService } from '../core/data/item-data.service';
+import { PageInfo } from '../core/shared/page-info.model';
+import { DSpaceObject } from '../core/shared/dspace-object.model';
+
+@Injectable()
+export class SearchService {
+
+  idsToMock: string[] = new Array(
+    'ed5d5f21-1ce4-4b06-b7c2-a7272835ade0',
+    '0ec7ff22-f211-40ab-a69e-c819b0b1f357',
+    '9f3288b2-f2ad-454f-9f4c-70325646dcee',
+    'fdf0175b-6b0c-421f-9266-28b04341b940',
+    'dbe26193-2fa0-4d6c-9f52-edd3572b65a0',
+    '6212604b-c778-42b3-88e4-cc3b1262ad28',
+    'a352a28f-fd5f-4c7b-81bb-06a28b4ea780',
+    '55a24a8a-1a2f-4fee-b5e8-ca07826d9ff3',
+    '75664e4e-0000-48e5-b2b6-fbe51ad05f92',
+    '848e4058-d7b2-482a-b481-e681e7c4016b',
+  );
+
+  constructor(private itemDataService: ItemDataService) {
+  }
+
+  search(query: string, scopeId: string): RemoteData<SearchResult<DSpaceObject>[]> {
+    const self = `https://dspace7.4science.it/dspace-spring-rest/api/search?query=${query}&scope=${scopeId}`;
+    const requestPending = Observable.of(false);
+    const responsePending = Observable.of(false);
+    const isSuccessFul = Observable.of(true);
+    const errorMessage = Observable.of(undefined);
+    const statusCode = Observable.of('200');
+    const pageInfo = Observable.of(new PageInfo());
+
+    let mockSearchResults: SearchResult<DSpaceObject>[] = [];
+    let dsoObsArr = [];
+    this.idsToMock = this.idsToMock
+
+    this.idsToMock.forEach(id => {
+      let remoteObject: RemoteData<DSpaceObject> = this.itemDataService.findById(id);
+
+      let dsoObs = remoteObject.payload.take(1);
+      dsoObsArr.push(dsoObs);
+      dsoObs.subscribe((dso: DSpaceObject) => {
+        let mockResult: SearchResult<DSpaceObject> = new SearchResult();
+        mockResult.result = dso;
+        // Just return the first metadatum as a "highlight"
+        mockResult.hitHiglights = dso.metadata.slice(0, 1);
+        mockSearchResults.push(mockResult);
+      });
+    });
+
+    // combineLatest ->Merges observables. When this is done, put the "mockSearchResults" as a payload
+    const payload = Observable.combineLatest(...dsoObsArr
+      , () => {
+        // Shuffle the searchresult to mimick a changed in the query
+        let randomization: number[] = new Array(-1, 0, 1);
+        let number = randomization[ Math.floor(Math.random() * randomization.length) ];
+        return mockSearchResults.sort(() => number);
+      });
+
+    return new RemoteData(
+      self,
+      requestPending,
+      responsePending,
+      isSuccessFul,
+      errorMessage,
+      statusCode,
+      pageInfo,
+      payload
+    )
+  }
+}

src/app/search/searchresult.model.ts

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+import { NgModule } from '@angular/core';
+import { DSpaceObject } from '../core/shared/dspace-object.model';
+import { Metadatum } from '../core/shared/metadatum.model';
+import { Observable } from 'rxjs/Observable';
+
+@NgModule({
+
+})
+
+export class SearchResult<T extends DSpaceObject>{
+
+  result: T;
+  hitHiglights : Metadatum[];
+
+}