[DSpace-CRIS] Creation of a custom URL for Items (Frontend)

src/app/audit-page/object-audit-overview/object-audit-logs.component.spec.ts

@@ -60,9 +60,9 @@ describe('ObjectAuditLogsComponent', () => {
       { findOwningCollectionFor: createSuccessfulRemoteDataObject$(createPaginatedList([{ id : 'collectionId' }])) },
     );
     activatedRoute = new MockActivatedRoute({ objectId: mockItemId });
-    activatedRoute.paramMap = of({
-      get: () => mockItemId,
-    });
+    activatedRoute.data = of({ dso: {
+      payload: mockItem,
+    } });
     locationStub = jasmine.createSpyObj('location', {
       back: jasmine.createSpy('back'),
     });

src/app/audit-page/object-audit-overview/object-audit-logs.component.ts

@@ -8,7 +8,7 @@ import {
 } from '@angular/core';
 import {
   ActivatedRoute,
-  ParamMap,
+  Data,
   Router,
   RouterLink,
 } from '@angular/router';
@@ -111,9 +111,8 @@ export class ObjectAuditLogsComponent implements OnInit {
   ) {}
 
   ngOnInit(): void {
-    this.objectId$ = this.route.paramMap.pipe(
-      map((paramMap: ParamMap) => paramMap.get('id')),
-      switchMap((id: string) => this.dSpaceObjectDataService.findById(id, true, true)),
+    this.objectId$ = this.route.data.pipe(
+      switchMap((data: Data) => this.dSpaceObjectDataService.findById(data.dso.payload.id, true, true)),
       getFirstSucceededRemoteDataPayload(),
       tap((object) => {
         this.objectRoute = getDSORoute(object);

src/app/core/breadcrumbs/dso-breadcrumb.resolver.ts

@@ -7,6 +7,7 @@ import { Observable } from 'rxjs';
 import { map } from 'rxjs/operators';
 
 import { IdentifiableDataService } from '../data/base/identifiable-data.service';
+import { ItemDataService } from '../data/item-data.service';
 import { getDSORoute } from '../router/utils/dso-route.utils';
 import { DSpaceObject } from '../shared/dspace-object.model';
 import { FollowLinkConfig } from '../shared/follow-link-config.model';
@@ -55,7 +56,9 @@ export const DSOBreadcrumbResolverByUuid: (route: ActivatedRouteSnapshot, state:
   dataService: IdentifiableDataService<DSpaceObject>,
   ...linksToFollow: FollowLinkConfig<DSpaceObject>[]
 ): Observable<BreadcrumbConfig<DSpaceObject>> => {
-  return dataService.findById(uuid, true, false, ...linksToFollow).pipe(
+  const isItemDataService = dataService instanceof ItemDataService;
+  const findMethod = isItemDataService ? dataService.findByIdOrCustomUrl.bind(dataService) : dataService.findById.bind(dataService);
+  return findMethod(uuid, true, false, ...linksToFollow).pipe(
     getFirstCompletedRemoteData(),
     getRemoteDataPayload(),
     map((object: DSpaceObject) => {

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

@@ -1,4 +1,5 @@
 import { HttpClient } from '@angular/common/http';
+import { createSuccessfulRemoteDataObject$ } from '@dspace/core/utilities/remote-data.utils';
 import { Store } from '@ngrx/store';
 import {
   cold,
@@ -13,6 +14,7 @@ import { RestResponse } from '../cache/response.models';
 import { CoreState } from '../core-state.model';
 import { NotificationsService } from '../notification-system/notifications.service';
 import { ExternalSourceEntry } from '../shared/external-source-entry.model';
+import { Item } from '../shared/item.model';
 import { HALEndpointServiceStub } from '../testing/hal-endpoint-service.stub';
 import { getMockRemoteDataBuildService } from '../testing/remote-data-build.service.mock';
 import { getMockRequestService } from '../testing/request.service.mock';
@@ -209,4 +211,93 @@ describe('ItemDataService', () => {
     });
   });
 
+  describe('findByCustomUrl', () => {
+    let itemDataService: ItemDataService;
+    let searchData: any;
+    let findByHrefSpy: jasmine.Spy;
+    let getSearchByHrefSpy: jasmine.Spy;
+    const id = 'custom-id';
+    const fakeHrefObs = of('https://rest.api/core/items/search/findByCustomURL?q=custom-id');
+    const linksToFollow = [];
+    const projections = ['full', 'detailed'];
+
+    beforeEach(() => {
+      searchData = jasmine.createSpyObj('searchData', ['getSearchByHref']);
+      getSearchByHrefSpy = searchData.getSearchByHref.and.returnValue(fakeHrefObs);
+      itemDataService = new ItemDataService(
+        requestService,
+        rdbService,
+        objectCache,
+        halEndpointService,
+        notificationsService,
+        comparator,
+        browseService,
+        bundleService,
+      );
+
+      (itemDataService as any).searchData = searchData;
+      findByHrefSpy = spyOn(itemDataService, 'findByHref').and.returnValue(createSuccessfulRemoteDataObject$(new Item()));
+    });
+
+    it('should call searchData.getSearchByHref with correct parameters', () => {
+      itemDataService.findByCustomUrl(id, true, true, linksToFollow, projections).subscribe();
+
+      expect(getSearchByHrefSpy).toHaveBeenCalledWith(
+        'findByCustomURL',
+        jasmine.objectContaining({
+          searchParams: jasmine.arrayContaining([
+            jasmine.objectContaining({ fieldName: 'q', fieldValue: id }),
+            jasmine.objectContaining({ fieldName: 'projection', fieldValue: 'full' }),
+            jasmine.objectContaining({ fieldName: 'projection', fieldValue: 'detailed' }),
+          ]),
+        }),
+        ...linksToFollow,
+      );
+    });
+
+    it('should call findByHref with the href observable returned from getSearchByHref', () => {
+      itemDataService.findByCustomUrl(id, true, false, linksToFollow, projections).subscribe();
+
+      expect(findByHrefSpy).toHaveBeenCalledWith(fakeHrefObs, true, false, ...linksToFollow);
+    });
+  });
+
+  describe('findById', () => {
+    let itemDataService: ItemDataService;
+
+    beforeEach(() => {
+      itemDataService = new ItemDataService(
+        requestService,
+        rdbService,
+        objectCache,
+        halEndpointService,
+        notificationsService,
+        comparator,
+        browseService,
+        bundleService,
+      );
+      spyOn(itemDataService, 'findByCustomUrl').and.returnValue(createSuccessfulRemoteDataObject$(new Item()));
+      spyOn(itemDataService, 'findByHref').and.returnValue(createSuccessfulRemoteDataObject$(new Item()));
+      spyOn(itemDataService as any, 'getIDHrefObs').and.returnValue(of('uuid-href'));
+    });
+
+    it('should call findByHref when given a valid UUID', () => {
+      const validUuid = '4af28e99-6a9c-4036-a199-e1b587046d39';
+      itemDataService.findById(validUuid).subscribe();
+
+      expect((itemDataService as any).getIDHrefObs).toHaveBeenCalledWith(encodeURIComponent(validUuid));
+      expect(itemDataService.findByHref).toHaveBeenCalled();
+      expect(itemDataService.findByCustomUrl).not.toHaveBeenCalled();
+    });
+
+    it('should call findByCustomUrl when given a non-UUID id', () => {
+      const nonUuid = 'custom-url';
+      itemDataService.findByIdOrCustomUrl(nonUuid).subscribe();
+
+      expect(itemDataService.findByCustomUrl).toHaveBeenCalledWith(nonUuid, true, true, []);
+      expect(itemDataService.findByHref).not.toHaveBeenCalled();
+    });
+  });
+
+
 });

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

@@ -24,6 +24,7 @@ import {
   switchMap,
   take,
 } from 'rxjs/operators';
+import { validate as uuidValidate } from 'uuid';
 
 import { BrowseService } from '../browse/browse.service';
 import { RemoteDataBuildService } from '../cache/builders/remote-data-build.service';
@@ -34,6 +35,7 @@ import { NotificationsService } from '../notification-system/notifications.servi
 import { Bundle } from '../shared/bundle.model';
 import { Collection } from '../shared/collection.model';
 import { ExternalSourceEntry } from '../shared/external-source-entry.model';
+import { FollowLinkConfig } from '../shared/follow-link-config.model';
 import { GenericConstructor } from '../shared/generic-constructor';
 import { HALEndpointService } from '../shared/hal-endpoint.service';
 import { Item } from '../shared/item.model';
@@ -58,6 +60,7 @@ import {
   PatchData,
   PatchDataImpl,
 } from './base/patch-data';
+import { SearchDataImpl } from './base/search-data';
 import { BundleDataService } from './bundle-data.service';
 import { DSOChangeAnalyzer } from './dso-change-analyzer.service';
 import { FindListOptions } from './find-list-options.model';
@@ -83,6 +86,7 @@ export abstract class BaseItemDataService extends IdentifiableDataService<Item>
   private createData: CreateData<Item>;
   private patchData: PatchData<Item>;
   private deleteData: DeleteData<Item>;
+  private searchData: SearchDataImpl<Item>;
 
   protected constructor(
     protected linkPath,
@@ -101,6 +105,7 @@ export abstract class BaseItemDataService extends IdentifiableDataService<Item>
     this.createData = new CreateDataImpl(this.linkPath, requestService, rdbService, objectCache, halService, notificationsService, this.responseMsToLive);
     this.patchData = new PatchDataImpl<Item>(this.linkPath, requestService, rdbService, objectCache, halService, comparator, this.responseMsToLive, this.constructIdEndpoint);
     this.deleteData = new DeleteDataImpl(this.linkPath, requestService, rdbService, objectCache, halService, notificationsService, this.responseMsToLive, this.constructIdEndpoint);
+    this.searchData = new SearchDataImpl(this.linkPath, requestService, rdbService, objectCache, halService, this.responseMsToLive);
   }
 
   /**
@@ -425,8 +430,95 @@ export abstract class BaseItemDataService extends IdentifiableDataService<Item>
     return this.createData.create(object, ...params);
   }
 
+  /**
+   * Returns an observable of {@link RemoteData} of an object, based on its custom URL, with a list of
+   * {@link FollowLinkConfig}, to automatically resolve {@link HALLink}s of the object
+   * @param id                          custom URL of object we want to retrieve
+   * @param useCachedVersionIfAvailable If this is true, the request will only be sent if there's
+   *                                    no valid cached version. Defaults to true
+   * @param reRequestOnStale            Whether or not the request should automatically be re-
+   *                                    requested after the response becomes stale
+   * @param linksToFollow               List of {@link FollowLinkConfig} that indicate which
+   *                                    {@link HALLink}s should be automatically resolved
+   * @param projections                 List of {@link projections} used to pass as parameters
+   */
+  public findByCustomUrl(id: string, useCachedVersionIfAvailable = true, reRequestOnStale = true, linksToFollow: FollowLinkConfig<Item>[], projections: string[] = []): Observable<RemoteData<Item>> {
+    const searchHref = 'findByCustomURL';
+
+    const options = Object.assign({}, {
+      searchParams: [
+        new RequestParam('q', id),
+      ],
+    });
+
+    projections.forEach((projection) => {
+      options.searchParams.push(new RequestParam('projection', projection));
+    });
+
+    const hrefObs = this.searchData.getSearchByHref(searchHref, options, ...linksToFollow);
+
+    return this.findByHref(hrefObs, useCachedVersionIfAvailable, reRequestOnStale, ...linksToFollow);
+  }
+
+
+  /**
+   * Invalidate cache of request findByCustomURL
+   *
+   * @param customUrl
+   * @param projections
+   */
+  public invalidateFindByCustomUrlCache(customUrl: string, projections: string[] = []): void {
+    const options: any = {
+      searchParams: [new RequestParam('q', customUrl)],
+    };
+
+    projections.forEach((p) => options.searchParams.push(new RequestParam('projection', p)));
+
+    this.searchData.getSearchByHref('findByCustomURL', options).pipe(take(1)).subscribe((href: string) => {
+      this.requestService.setStaleByHrefSubstring(href);
+      this.objectCache.remove(href);
+    });
+  }
+
+  /**
+   * Returns an observable of {@link RemoteData} of an object, based on its ID, with a list of
+   * {@link FollowLinkConfig}, to automatically resolve {@link HALLink}s of the object
+   * @param id                          ID of object we want to retrieve
+   * @param useCachedVersionIfAvailable If this is true, the request will only be sent if there's
+   *                                    no valid cached version. Defaults to true
+   * @param reRequestOnStale            Whether or not the request should automatically be re-
+   *                                    requested after the response becomes stale
+   * @param linksToFollow               List of {@link FollowLinkConfig} that indicate which
+   *                                    {@link HALLink}s should be automatically resolved
+   */
+  public findById(id: string, useCachedVersionIfAvailable = true, reRequestOnStale = true, ...linksToFollow: FollowLinkConfig<Item>[]): Observable<RemoteData<Item>> {
+    const href$ = this.getIDHrefObs(encodeURIComponent(id), ...linksToFollow);
+    return this.findByHref(href$, useCachedVersionIfAvailable, reRequestOnStale, ...linksToFollow);
+  }
+
+  /**
+   * Returns an observable of {@link RemoteData} of an object, based on its ID or custom URL if the parameter is not a valid id/uuid, with a list of
+   * {@link FollowLinkConfig}, to automatically resolve {@link HALLink}s of the object
+   * @param id                          ID of object we want to retrieve
+   * @param useCachedVersionIfAvailable If this is true, the request will only be sent if there's
+   *                                    no valid cached version. Defaults to true
+   * @param reRequestOnStale            Whether or not the request should automatically be re-
+   *                                    requested after the response becomes stale
+   * @param linksToFollow               List of {@link FollowLinkConfig} that indicate which
+   *                                    {@link HALLink}s should be automatically resolved
+   */
+  public findByIdOrCustomUrl(id: string, useCachedVersionIfAvailable = true, reRequestOnStale = true, ...linksToFollow: FollowLinkConfig<Item>[]): Observable<RemoteData<Item>> {
+    if (uuidValidate(id)) {
+      return this.findById(id, useCachedVersionIfAvailable, reRequestOnStale, ...linksToFollow);
+    } else {
+      return this.findByCustomUrl(id, useCachedVersionIfAvailable, reRequestOnStale, linksToFollow);
+    }
+  }
+
 }
 
+
+
 /**
  * A service for CRUD operations on Items
  */

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

@@ -1,5 +1,6 @@
 import { Injectable } from '@angular/core';
 import { RestRequestMethod } from '@dspace/config/rest-request-method';
+import { Item } from '@dspace/core/shared/item.model';
 import { isNotEmpty } from '@dspace/shared/utils/empty.util';
 import { Operation } from 'fast-json-patch';
 import {
@@ -106,4 +107,14 @@ export class VersionDataService extends IdentifiableDataService<Version> impleme
     return this.patchData.createPatchFromCache(object);
   }
 
+
+  /**
+   * Invalidates the cache of the version link for this item.
+   *
+   * @param item
+   */
+  invalidateVersionHrefCache(item: Item): void {
+    this.requestService.setStaleByHrefSubstring(item._links.version.href);
+  }
+
 }

src/app/core/provide-core.ts

@@ -4,6 +4,7 @@ import {
   makeEnvironmentProviders,
 } from '@angular/core';
 import { APP_CONFIG } from '@dspace/config/app-config.interface';
+import { SubmissionCustomUrl } from '@dspace/core/submission/models/submission-custom-url.model';
 
 import { Audit } from './audit/model/audit.model';
 import { AuthStatus } from './auth/models/auth-status.model';
@@ -230,4 +231,5 @@ export const models =
     StatisticsEndpoint,
     CorrectionType,
     SupervisionOrder,
+    SubmissionCustomUrl,
   ];

src/app/core/router/utils/dso-route.utils.ts

@@ -31,9 +31,16 @@ export function getCommunityPageRoute(communityId: string) {
  */
 export function getItemPageRoute(item: Item) {
   const type = item.firstMetadataValue('dspace.entity.type');
-  return getEntityPageRoute(type, item.uuid);
+  let url = item.uuid;
+
+  if (isNotEmpty(item.metadata) && item.hasMetadata('dspace.customurl')) {
+    url = item.firstMetadataValue('dspace.customurl');
+  }
+
+  return getEntityPageRoute(type, url);
 }
 
+
 export function getEntityPageRoute(entityType: string, itemId: string) {
   if (isNotEmpty(entityType)) {
     return new URLCombiner(`/${ENTITY_MODULE_PATH}`, encodeURIComponent(entityType.toLowerCase()), itemId).toString();

src/app/core/shared/authorized.operators.ts

@@ -56,6 +56,28 @@ export const redirectOn4xx = <T>(router: Router, authService: AuthService) =>
       }),
       map(([rd]: [RemoteData<T>, boolean]) => rd),
     );
+
+
+/**
+ * Redirect to 404 if the requested content is not found (204 No Content)
+ *
+ * @param router
+ * @param authService
+ */
+export const redirectOn204 = <T>(router: Router, authService: AuthService) =>
+  (source: Observable<RemoteData<T>>): Observable<RemoteData<T>> =>
+    source.pipe(
+      withLatestFrom(authService.isAuthenticated()),
+      filter(([rd, isAuthenticated]: [RemoteData<T>, boolean]) => {
+        if (rd.hasNoContent) {
+          router.navigateByUrl(getPageNotFoundRoute(), { skipLocationChange: true });
+          return false;
+        }
+        return true;
+      }),
+      map(([rd]: [RemoteData<T>, boolean]) => rd),
+    );
+
 /**
  * Operator that returns a UrlTree to a forbidden page or the login page when the boolean received is false
  * @param router      The router used to navigate to a forbidden page