| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * 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. |
| */ |
| package com.android.tradefed.result; |
| |
| import com.android.tradefed.util.FileUtil; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** |
| * A {@link InputStreamSource} that takes an input file. |
| * |
| * <p>Caller is responsible for deleting the file |
| */ |
| public class FileInputStreamSource implements InputStreamSource { |
| |
| private final File mFile; |
| private boolean mIsCancelled = false; |
| private boolean mDeleteOnCancel = false; |
| |
| public FileInputStreamSource(File file) { |
| mFile = file; |
| } |
| |
| /** |
| * Ctor |
| * |
| * @param file {@link File} containing the data to be streamed |
| * @param deleteFileOnCancel if true, the file associated will be deleted when {@link #close()} |
| * is called |
| */ |
| public FileInputStreamSource(File file, boolean deleteFileOnCancel) { |
| mFile = file; |
| mDeleteOnCancel = deleteFileOnCancel; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public synchronized InputStream createInputStream() { |
| if (mIsCancelled) { |
| return null; |
| } |
| try { |
| return new FileInputStream(mFile); |
| } catch (IOException e) { |
| return null; |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public synchronized void close() { |
| mIsCancelled = true; |
| if (mDeleteOnCancel) { |
| cleanFile(); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public long size() { |
| return mFile.length(); |
| } |
| |
| /** |
| * Convenience method to delete the file associated with the FileInputStreamSource. Not safe. |
| */ |
| public void cleanFile() { |
| FileUtil.deleteFile(mFile); |
| } |
| } |
| |