1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.tradefed.build; 17 18 import java.io.File; 19 20 /** 21 * A wrapper class that provides {@link FileDownloadCache} facilities while implementing the 22 * {@link IFileDownloader} interface. 23 * <p/> 24 * Useful for cases where you want to abstract the use of the cache from callers. 25 */ 26 public class FileDownloadCacheWrapper implements IFileDownloader { 27 28 private final FileDownloadCache mCache; 29 private final IFileDownloader mDelegateDownloader; 30 31 public FileDownloadCacheWrapper(File cacheDir, IFileDownloader delegateDownloader) { 32 mCache = FileDownloadCacheFactory.getInstance().getCache(cacheDir); 33 mDelegateDownloader = delegateDownloader; 34 } 35 36 /** 37 * {@inheritDoc} 38 */ 39 @Override 40 public File downloadFile(String remoteFilePath) throws BuildRetrievalError { 41 return mCache.fetchRemoteFile(mDelegateDownloader, remoteFilePath); 42 } 43 44 /** 45 * {@inheritDoc} 46 */ 47 @Override 48 public void downloadFile(String remotePath, File destFile) throws BuildRetrievalError { 49 throw new UnsupportedOperationException(); 50 } 51 } 52
