001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.servlet;
016    
017    import java.io.IOException;
018    import java.io.OutputStream;
019    
020    import javax.servlet.ServletOutputStream;
021    
022    /**
023     * @author Shuyang Zhou
024     */
025    public class PipingServletOutputStream extends ServletOutputStream {
026    
027            public PipingServletOutputStream(OutputStream outputStream) {
028                    _outputStream = outputStream;
029            }
030    
031            public void close() throws IOException {
032                    super.close();
033    
034                    _closed = true;
035            }
036    
037            public boolean isClosed() {
038                    return _closed;
039            }
040    
041            public void write(byte[] byteArray) throws IOException {
042                    _outputStream.write(byteArray);
043            }
044    
045            public void write(byte[] byteArray, int offset, int length)
046                    throws IOException {
047    
048                    _outputStream.write(byteArray, offset, length);
049            }
050    
051            public void write(int i) throws IOException {
052                    _outputStream.write(i);
053            }
054    
055            private boolean _closed;
056            private OutputStream _outputStream;
057    
058    }