001    /**
002     * Copyright (c) 2000-2013 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            @Override
032            public void close() throws IOException {
033                    super.close();
034    
035                    _closed = true;
036            }
037    
038            public boolean isClosed() {
039                    return _closed;
040            }
041    
042            @Override
043            public void write(byte[] bytes) throws IOException {
044                    _outputStream.write(bytes);
045            }
046    
047            @Override
048            public void write(byte[] bytes, int offset, int length) throws IOException {
049                    _outputStream.write(bytes, offset, length);
050            }
051    
052            @Override
053            public void write(int b) throws IOException {
054                    _outputStream.write(b);
055            }
056    
057            private boolean _closed;
058            private OutputStream _outputStream;
059    
060    }