[ADF-4793] The filters don't work on community-edition [ Use local storage for community version ] (#4973)

* * Use local storage for community version.

* * Created a communityModule.

* * Updated unit tests the recent changes

* * Updated documents.

* * Modified process/task filters doc.

lib/process-services-cloud/src/lib/services/user-preference-cloud.service.ts

@@ -0,0 +1,151 @@
+/*!
+ * @license
+ * Copyright 2019 Alfresco Software, Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Injectable } from '@angular/core';
+import { PreferenceCloudServiceInterface } from './preference-cloud.interface';
+import { AlfrescoApiService, AppConfigService, LogService } from '@alfresco/adf-core';
+import { from, throwError, Observable } from 'rxjs';
+import { catchError } from 'rxjs/operators';
+import { BaseCloudService } from './base-cloud.service';
+
+@Injectable()
+export class UserPreferenceCloudService extends BaseCloudService implements PreferenceCloudServiceInterface {
+
+  contentTypes = ['application/json'];
+  accepts = ['application/json'];
+
+  constructor(
+    private alfrescoApiService: AlfrescoApiService,
+    private appConfigService: AppConfigService,
+    private logService: LogService) {
+    super();
+  }
+
+  /**
+   * Gets user preferences
+   * @param appName Name of the target app
+   * @returns List of user preferences
+   */
+  getPreferences(appName: string): Observable<any> {
+    if (appName || appName === '') {
+      const uri = this.buildPreferenceServiceUri(appName);
+      return from(this.alfrescoApiService.getInstance()
+        .oauth2Auth.callCustomApi(uri, 'GET',
+          null, null, null,
+          null, null, this.contentTypes,
+          this.accepts, null, null)
+      );
+    } else {
+      this.logService.error('Appname is mandatory for querying preferences');
+      return throwError('Appname not configured');
+    }
+  }
+
+  /**
+   * Gets user preference.
+   * @param appName Name of the target app
+   * @param key Key of the target preference
+   * @returns Observable of user preference
+   */
+  getPreferenceByKey(appName: string, key: string): Observable<any> {
+    if (appName || appName === '') {
+      const uri = this.buildPreferenceServiceUri(appName) + '/' + `${key}`;
+      return from(
+        this.alfrescoApiService.getInstance()
+          .oauth2Auth.callCustomApi(uri, 'GET',
+            null, null, null,
+            null, null, this.contentTypes,
+            this.accepts, null, null)
+      ).pipe(catchError((error) => throwError(error)));
+    } else {
+      this.logService.error('Appname and key are mandatory for querying preference');
+      return throwError('Appname not configured');
+    }
+  }
+
+  /**
+   * Creates user preference.
+   * @param appName Name of the target app
+   * @param key Key of the target preference
+   * @newPreference Details of new user preference
+   * @returns Observable of created user preferences
+   */
+  createPreference(appName: string, key: string, newPreference: any): Observable<any> {
+    if (appName || appName === '') {
+      const uri = this.buildPreferenceServiceUri(appName) + '/' + `${key}`;
+      const requestPayload = JSON.stringify(newPreference);
+      return from(this.alfrescoApiService.getInstance()
+        .oauth2Auth.callCustomApi(uri, 'PUT',
+          null, null,
+          null, null, requestPayload,
+          this.contentTypes, this.accepts,
+          Object, null, null)
+      ).pipe(
+        catchError((err) => this.handleProcessError(err))
+      );
+    } else {
+      this.logService.error('Appname  and key are  mandatory for creating preference');
+      return throwError('Appname not configured');
+    }
+  }
+
+  /**
+   * Updates user preference.
+   * @param appName Name of the target app
+   * @param key Key of the target preference
+   * @param updatedPreference Details of updated preference
+   * @returns Observable of updated user preferences
+   */
+  updatePreference(appName: string, key: string, updatedPreference: any): Observable<any> {
+    return this.createPreference(appName, key, updatedPreference);
+  }
+
+  /**
+   * Deletes user preference by given preference key.
+   * @param appName Name of the target app
+   * @param key Key of the target preference
+   * @returns Observable of delete operation status
+   */
+  deletePreference(appName: string, key: string): Observable<any> {
+    if (appName || appName === '') {
+      const uri = this.buildPreferenceServiceUri(appName) + '/' + `${key}`;
+      return from(this.alfrescoApiService.getInstance()
+        .oauth2Auth.callCustomApi(uri, 'DELETE',
+          null, null, null,
+          null, null, this.contentTypes,
+          this.accepts, null, null, null)
+      );
+    } else {
+      this.logService.error('Appname and key are mandatory to delete preference');
+      return throwError('Appname not configured');
+    }
+  }
+
+  /**
+   * Creates preference uri
+   * @param appName Name of the target app
+   * @returns String of preference service uri
+   */
+  private buildPreferenceServiceUri(appName: string): string {
+    this.contextRoot = this.appConfigService.get('bpmHost', '');
+    return `${this.getBasePath(appName)}/preference/v1/preferences`;
+  }
+
+  private handleProcessError(error: any) {
+    return throwError(error || 'Server error');
+  }
+}