1/* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16import type { AsyncCallback } from '../../common/AsyncCallback'; 17import { MediaDataSource } from './MediaDataSource'; 18import { Log } from '../../../utils/Log'; 19import { TraceControllerUtils } from '../../../utils/TraceControllerUtils'; 20 21const TAG: string = 'common_GetMediaCountCallback'; 22 23// DataSource request media photo quantity callback 24export class GetMediaCountCallback implements AsyncCallback<number> { 25 source: MediaDataSource; 26 requestTime: number; 27 28 // source: MediaDataSource 29 constructor(source: MediaDataSource) { 30 this.source = source; 31 this.requestTime = Date.now(); 32 TraceControllerUtils.startTraceWithTaskId('getMediaCount', this.requestTime); 33 } 34 35 // Data callback 36 callback(count: number, dataAlbumUri?: string): void { 37 TraceControllerUtils.finishTraceWithTaskId('getMediaCount', this.requestTime); 38 if (this.source?.isInvalidData(this.source?.getAlbumUri(), dataAlbumUri)) { 39 Log.error(TAG, 'GetMediaCountCallback callback isInvalidData:this.albumUri:' + this.source?.getAlbumUri() + ' dataAlbumUri:' + dataAlbumUri); 40 return; 41 } 42 this.source.updateMediaCount(this.requestTime, count); 43 } 44}