001    /**
002     * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
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)
049                    throws IOException {
050    
051                    _outputStream.write(bytes, offset, length);
052            }
053    
054            @Override
055            public void write(int b) throws IOException {
056                    _outputStream.write(b);
057            }
058    
059            private boolean _closed;
060            private OutputStream _outputStream;
061    
062    }