Merge remote-tracking branch 'remotes/origin/master' into submission

# Conflicts:
#	package.json
#	src/app/+item-page/edit-item-page/item-delete/item-delete.component.spec.ts
#	src/app/+item-page/edit-item-page/item-private/item-private.component.spec.ts
#	src/app/+item-page/edit-item-page/item-public/item-public.component.spec.ts
#	src/app/+item-page/edit-item-page/item-reinstate/item-reinstate.component.spec.ts
#	src/app/+item-page/edit-item-page/item-withdraw/item-withdraw.component.spec.ts
#	src/app/+item-page/edit-item-page/simple-item-action/abstract-simple-item-action.component.spec.ts
#	src/app/+search-page/search-service/search.service.spec.ts
#	src/app/core/auth/auth-response-parsing.service.spec.ts
#	src/app/core/auth/auth-response-parsing.service.ts
#	src/app/core/cache/builders/remote-data-build.service.ts
#	src/app/core/cache/response-cache.reducer.spec.ts
#	src/app/core/cache/response-cache.service.spec.ts
#	src/app/core/cache/response.models.ts
#	src/app/core/config/config-response-parsing.service.ts
#	src/app/core/core.effects.ts
#	src/app/core/core.module.ts
#	src/app/core/core.reducers.ts
#	src/app/core/data/base-response-parsing.service.ts
#	src/app/core/data/data.service.ts
#	src/app/core/data/item-data.service.spec.ts
#	src/app/core/data/request.models.ts
#	src/app/core/data/request.service.spec.ts
#	src/app/core/data/request.service.ts
#	src/app/core/integration/integration-response-parsing.service.spec.ts
#	src/app/core/integration/integration-response-parsing.service.ts
#	src/app/core/integration/integration.service.ts
#	src/app/core/metadata/metadata.service.spec.ts
#	src/app/core/registry/registry.service.spec.ts
#	src/app/core/shared/hal-endpoint.service.ts
#	src/app/shared/form/builder/ds-dynamic-form-ui/ds-dynamic-form-control.component.ts
#	src/app/shared/mocks/mock-response-cache.service.ts
#	src/app/shared/shared.module.ts

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

@@ -10,54 +10,43 @@ import { AuthResponseParsingService } from '../auth/auth-response-parsing.servic
 import { HttpOptions } from '../dspace-rest-v2/dspace-rest-v2.service';
 import { SubmissionResponseParsingService } from '../submission/submission-response-parsing.service';
 import { IntegrationResponseParsingService } from '../integration/integration-response-parsing.service';
+import { RestRequestMethod } from './rest-request-method';
 import { SearchParam } from '../cache/models/search-param.model';
 import { EpersonResponseParsingService } from '../eperson/eperson-response-parsing.service';
 import { BrowseItemsResponseParsingService } from './browse-items-response-parsing-service';
 
 /* tslint:disable:max-classes-per-file */
 
-/**
- * Represents a Request Method.
- *
- * I didn't reuse the RequestMethod enum in @angular/http because
- * it uses numbers. The string values here are more clear when
- * debugging.
- *
- * The ones commented out are still unsupported in the rest of the codebase
- */
-export enum RestRequestMethod {
-  Get = 'GET',
-  Post = 'POST',
-  Put = 'PUT',
-  Delete = 'DELETE',
-  Options = 'OPTIONS',
-  Head = 'HEAD',
-  Patch = 'PATCH'
-}
-
 export abstract class RestRequest {
+  public responseMsToLive = 0;
   constructor(
     public uuid: string,
     public href: string,
-    public method: RestRequestMethod = RestRequestMethod.Get,
+    public method: RestRequestMethod = RestRequestMethod.GET,
     public body?: any,
-    public options?: HttpOptions
+    public options?: HttpOptions,
   ) {
   }
 
   getResponseParser(): GenericConstructor<ResponseParsingService> {
     return DSOResponseParsingService;
   }
+
+  get toCache(): boolean {
+    return this.responseMsToLive > 0;
+  }
 }
 
 export class GetRequest extends RestRequest {
+  public responseMsToLive = 60 * 15 * 1000;
+
   constructor(
     public uuid: string,
     public href: string,
     public body?: any,
-    public options?: HttpOptions
+    public options?: HttpOptions,
   )  {
-    super(uuid, href, RestRequestMethod.Get, body)
+    super(uuid, href, RestRequestMethod.GET, body, options)
   }
 }
 
@@ -68,7 +57,7 @@ export class PostRequest extends RestRequest {
     public body?: any,
     public options?: HttpOptions
   )  {
-    super(uuid, href, RestRequestMethod.Post, body)
+    super(uuid, href, RestRequestMethod.POST, body)
   }
 }
 
@@ -79,7 +68,7 @@ export class PutRequest extends RestRequest {
     public body?: any,
     public options?: HttpOptions
   )  {
-    super(uuid, href, RestRequestMethod.Put, body)
+    super(uuid, href, RestRequestMethod.PUT, body)
   }
 }
 
@@ -90,7 +79,7 @@ export class DeleteRequest extends RestRequest {
     public body?: any,
     public options?: HttpOptions
   )  {
-    super(uuid, href, RestRequestMethod.Delete, body)
+    super(uuid, href, RestRequestMethod.DELETE, body)
   }
 }
 
@@ -101,7 +90,7 @@ export class OptionsRequest extends RestRequest {
     public body?: any,
     public options?: HttpOptions
   )  {
-    super(uuid, href, RestRequestMethod.Options, body)
+    super(uuid, href, RestRequestMethod.OPTIONS, body)
   }
 }
 
@@ -112,7 +101,7 @@ export class HeadRequest extends RestRequest {
     public body?: any,
     public options?: HttpOptions
   )  {
-    super(uuid, href, RestRequestMethod.Head, body)
+    super(uuid, href, RestRequestMethod.HEAD, body)
   }
 }
 
@@ -123,7 +112,7 @@ export class PatchRequest extends RestRequest {
     public body?: any,
     public options?: HttpOptions
   )  {
-    super(uuid, href, RestRequestMethod.Patch, body)
+    super(uuid, href, RestRequestMethod.PATCH, body)
   }
 }
 
@@ -303,6 +292,29 @@ export class EpersonRequest extends GetRequest {
   }
 }
 
+export class CreateRequest extends PostRequest {
+  constructor(uuid: string, href: string, public body?: any, public options?: HttpOptions) {
+    super(uuid, href, body, options);
+  }
+
+  getResponseParser(): GenericConstructor<ResponseParsingService> {
+    return DSOResponseParsingService;
+  }
+}
+
+/**
+ * Request to delete an object based on its identifier
+ */
+export class DeleteByIDRequest extends DeleteRequest {
+  constructor(
+    uuid: string,
+    href: string,
+    public resourceID: string
+  ) {
+    super(uuid, href);
+  }
+}
+
 export class RequestError extends Error {
   statusCode: number;
   statusText: string;