Add “Cite” button to item page for generating bibliographic references using Citation Style Language (CSL)

src/app/core/data-services-map.ts

@@ -30,6 +30,7 @@ import { RESOURCE_POLICY } from './resource-policy/models/resource-policy.resour
 import { ACCESS_STATUS } from './shared/access-status.resource-type';
 import { ADMIN_NOTIFY_MESSAGE } from './shared/admin-notify-message.resource-type';
 import { AUTHORIZATION } from './shared/authorization.resource-type';
+import { BIBLIOGRAPHY } from './shared/bibliography/bibliography.resource-type';
 import { BITSTREAM } from './shared/bitstream.resource-type';
 import { BITSTREAM_FORMAT } from './shared/bitstream-format.resource-type';
 import { BROWSE_DEFINITION } from './shared/browse-definition.resource-type';
@@ -88,6 +89,7 @@ export const LAZY_DATA_SERVICES: LazyDataServicesMap = new Map([
   [SUBSCRIPTION.value, () => import('./data/subscriptions-data.service').then(m => m.SubscriptionsDataService)],
   [COMMUNITY.value, () => import('./data/community-data.service').then(m => m.CommunityDataService)],
   [VOCABULARY.value, () => import('./submission/vocabularies/vocabulary.data.service').then(m => m.VocabularyDataService)],
+  [BIBLIOGRAPHY.value, () => import('./data/bibliography-data.service').then(m => m.ItemBibliographyService)],
   [BUNDLE.value, () => import('./data/bundle-data.service').then(m => m.BundleDataService)],
   [CONFIG_PROPERTY.value, () => import('./data/configuration-data.service').then(m => m.ConfigurationDataService)],
   [POOL_TASK.value, () => import('./tasks/pool-task-data.service').then(m => m.PoolTaskDataService)],

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

@@ -0,0 +1,37 @@
+import { Injectable } from '@angular/core';
+import {
+  map,
+  Observable,
+} from 'rxjs';
+
+import { RemoteDataBuildService } from '../cache/builders/remote-data-build.service';
+import { ObjectCacheService } from '../cache/object-cache.service';
+import { BibliographyData } from '../shared/bibliography/bibliography-data.model';
+import { HALEndpointService } from '../shared/hal-endpoint.service';
+import { Item } from '../shared/item.model';
+import { getFirstCompletedRemoteData } from '../shared/operators';
+import { BaseDataService } from './base/base-data.service';
+import { RequestService } from './request.service';
+
+
+
+
+@Injectable({ providedIn: 'root' })
+export class ItemBibliographyService extends BaseDataService<BibliographyData> {
+
+  constructor(
+    protected requestService: RequestService,
+    protected rdbService: RemoteDataBuildService,
+    protected objectCache: ObjectCacheService,
+    protected halService: HALEndpointService,
+  ) {
+    super('bibliographies', requestService, rdbService, objectCache, halService);
+  }
+
+  getBibliographies(item: Item): Observable<BibliographyData> {
+    return this.findByHref(item._links.bibliography.href).pipe(
+      getFirstCompletedRemoteData(),
+      map(res => res.payload),
+    );
+  }
+}

src/app/core/provide-core.ts

@@ -50,6 +50,7 @@ import { ResearcherProfile } from './profile/model/researcher-profile.model';
 import { ResourcePolicy } from './resource-policy/models/resource-policy.model';
 import { AccessStatusObject } from './shared/access-status.model';
 import { Authorization } from './shared/authorization.model';
+import { BibliographyData } from './shared/bibliography/bibliography-data.model';
 import { Bitstream } from './shared/bitstream.model';
 import { BitstreamFormat } from './shared/bitstream-format.model';
 import { BrowseDefinition } from './shared/browse-definition.model';
@@ -134,6 +135,7 @@ export const models =
   [
     Root,
     DSpaceObject,
+    BibliographyData,
     Bundle,
     Bitstream,
     BitstreamFormat,

src/app/core/shared/bibliography/bibliography-data.model.ts

@@ -0,0 +1,42 @@
+import {
+  autoserialize,
+  deserialize,
+} from 'cerialize';
+import { typedObject } from 'src/app/core/cache/builders/build-decorators';
+import { DSpaceObject } from 'src/app/core/shared/dspace-object.model';
+import { HALLink } from 'src/app/core/shared/hal-link.model';
+import { ResourceType } from 'src/app/core/shared/resource-type';
+import { excludeFromEquals } from 'src/app/core/utilities/equals.decorators';
+
+import { Bibliography } from './bibliography.model';
+import { BIBLIOGRAPHY } from './bibliography.resource-type';
+
+/**
+ * Class representing a DSpace Version
+ */
+@typedObject
+export class BibliographyData extends DSpaceObject {
+  static type = BIBLIOGRAPHY;
+
+  /**
+   * The type for this IdentifierData
+   */
+  @excludeFromEquals
+  @autoserialize
+  type: ResourceType;
+
+  /**
+   * The
+   */
+  @autoserialize
+  bibliographies: Bibliography[];
+
+  /**
+   * The {@link HALLink}s for this IdentifierData
+   */
+  @deserialize
+  _links: {
+    self: HALLink;
+  };
+
+}

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

@@ -0,0 +1,9 @@
+import { autoserialize } from 'cerialize';
+
+export class Bibliography {
+  @autoserialize
+  style: string;
+
+  @autoserialize
+  value: string;
+}

src/app/core/shared/bibliography/bibliography.resource-type.ts

@@ -0,0 +1,9 @@
+import { ResourceType } from 'src/app/core/shared/resource-type';
+
+/**
+ * The resource type for Bibliography
+ *
+ * Needs to be in a separate file to prevent circular
+ * dependencies in webpack.
+ */
+export const BIBLIOGRAPHY = new ResourceType('bibliography');

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

@@ -107,6 +107,7 @@ export class Item extends DSpaceObject implements ChildHALResource, HandleObject
     mappedCollections: HALLink;
     relationships: HALLink;
     bundles: HALLink;
+    bibliography: HALLink;
     owningCollection: HALLink;
     templateItemOf: HALLink;
     version: HALLink;
@@ -155,8 +156,8 @@ export class Item extends DSpaceObject implements ChildHALResource, HandleObject
    * The access status for this Item
    * Will be undefined unless the access status {@link HALLink} has been resolved.
    */
-   @link(ACCESS_STATUS, false, 'accessStatus')
-     accessStatus?: Observable<RemoteData<AccessStatusObject>>;
+  @link(ACCESS_STATUS, false, 'accessStatus')
+  accessStatus?: Observable<RemoteData<AccessStatusObject>>;
 
   /**
    * The identifier data for this Item