Java tutorial
/** * Copyright 2014 Google Inc. All rights reserved. * * 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.google.mr4c.sources; import java.io.InputStream; import java.io.IOException; import java.io.ByteArrayOutputStream; import java.io.OutputStream; import org.apache.commons.io.IOUtils; public class BytesDataFileSink extends AbstractDataFileSink { private ByteArrayOutputStream m_stream = new ByteArrayOutputStream(); public synchronized OutputStream getFileOutputStream() throws IOException { m_stream.reset(); return m_stream; } public synchronized void writeFile(byte[] bytes) throws IOException { m_stream.reset(); m_stream.write(bytes, 0, bytes.length); } public synchronized void writeFile(InputStream input) throws IOException { m_stream.reset(); IOUtils.copy(input, m_stream); } public String getDescription() { return "in memory file sink"; } public synchronized byte[] getWrittenBytes() { return m_stream.toByteArray(); } }