intermediate commit

src/app/core/data/search-response-parsing.service.ts

@@ -0,0 +1,42 @@
+import { Injectable } from '@angular/core';
+import {
+  DSOSuccessResponse, RestResponse,
+  SearchSuccessResponse
+} from '../cache/response-cache.models';
+import { DSOResponseParsingService } from './dso-response-parsing.service';
+import { ResponseParsingService } from './parsing.service';
+import { RestRequest } from './request.models';
+import { DSpaceRESTV2Response } from '../dspace-rest-v2/dspace-rest-v2-response.model';
+import { DSpaceRESTv2Serializer } from '../dspace-rest-v2/dspace-rest-v2.serializer';
+import { PageInfo } from '../shared/page-info.model';
+import { hasValue, isNotEmpty } from '../../shared/empty.util';
+import { SearchQueryResponse } from '../../+search-page/search-service/search-query-response.model';
+
+@Injectable()
+export class SearchResponseParsingService implements ResponseParsingService {
+  constructor(private dsoParser: DSOResponseParsingService) {}
+
+  parse(request: RestRequest, data: DSpaceRESTV2Response): RestResponse {
+    const payload = data.payload;
+    const dsoSelfLinks = payload._embedded.objects
+      .map((object) => object._embedded.dspaceObject)
+      // we don't need embedded collections, bitstreamformats, etc for search results.
+      // And parsing them all takes up a lot of time. Throw them away to improve performance
+      // until objs until partial results are supported by the rest api
+      .map((dso) => Object.assign({}, dso, { _embedded: undefined }))
+      .map((dso) => this.dsoParser.parse(request, {
+        payload: dso,
+        statusCode: data.statusCode
+      }))
+      .map((obj) => obj.resourceSelfLinks)
+      .reduce((combined, thisElement) => [...combined, ...thisElement], []);
+
+    const objects = payload._embedded.objects
+      .map((object, index) => Object.assign({}, object, { dspaceObject: dsoSelfLinks[index] }));
+
+    payload.objects = objects;
+    const deserialized = new DSpaceRESTv2Serializer(SearchQueryResponse).deserialize(payload);
+    return new SearchSuccessResponse(deserialized, data.statusCode, undefined);
+  }
+
+}