/** * $RCSfile$ * $Revision: 3144 $ * $Date: 2005-12-01 14:20:11 -0300 (Thu, 01 Dec 2005) $ * * Copyright (C) 2004-2008 Jive Software. 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 org.jivesoftware.util; import java.io.InputStream; import java.io.OutputStream; import java.util.concurrent.Callable; /** * Callable which will read from an input stream and write to an output stream. * * @author Alexander Wenckus */ public class InputOutputStreamWrapper implements Callable { private static final int DEFAULT_BUFFER_SIZE = 8000; private long amountWritten = 0; private int bufferSize; private InputStream in; private OutputStream out; public InputOutputStreamWrapper(InputStream in, OutputStream out, int bufferSize) { if(bufferSize <= 0) { bufferSize = DEFAULT_BUFFER_SIZE; } this.bufferSize = bufferSize; this.in = in; this.out = out; } public InputOutputStreamWrapper(InputStream in, OutputStream out) { this(in, out, DEFAULT_BUFFER_SIZE); } public Object call() throws Exception { final byte[] b = new byte[bufferSize]; int count = 0; amountWritten = 0; do { // write to the output stream out.write(b, 0, count); amountWritten += count; // read more bytes from the input stream count = in.read(b); } while (count >= 0); return amountWritten; } public long getAmountWritten() { return amountWritten; } }