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| SplitServletOutputStream.java | - | 0% | 0% | 0% |
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/*
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* Copyright (c) 2002-2003 by OpenSymphony
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* All rights reserved.
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*/
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package com.opensymphony.oscache.web.filter;
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import java.io.IOException;
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import java.io.OutputStream;
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import javax.servlet.ServletOutputStream;
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/**
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* Extends the base <code>ServletOutputStream</code> class so that
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* the stream can be captured as it gets written. This is achieved
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* by overriding the <code>write()</code> methods and outputting
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* the data to two streams - the original stream and a secondary stream
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* that is designed to capture the written data.
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*
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* @version $Revision: 1.1 $
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* @author <a href="mailto:sergek@lokitech.com">Serge Knystautas</a>
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*/
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public class SplitServletOutputStream extends ServletOutputStream { |
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OutputStream captureStream = null;
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OutputStream passThroughStream = null;
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/**
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* Constructs a split output stream that both captures and passes through
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* the servlet response.
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*
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* @param captureStream The stream that will be used to capture the data.
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* @param passThroughStream The pass-through <code>ServletOutputStream</code>
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* that will write the response to the client as originally intended.
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*/
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public SplitServletOutputStream(OutputStream captureStream, OutputStream passThroughStream) {
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this.captureStream = captureStream;
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this.passThroughStream = passThroughStream;
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} |
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/**
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* Writes the incoming data to both the output streams.
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*
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* @param value The int data to write.
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* @throws IOException
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*/
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public void write(int value) throws IOException { |
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captureStream.write(value); |
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passThroughStream.write(value); |
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} |
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/**
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* Writes the incoming data to both the output streams.
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*
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* @param value The bytes to write to the streams.
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* @throws IOException
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*/
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public void write(byte[] value) throws IOException { |
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captureStream.write(value); |
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passThroughStream.write(value); |
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} |
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/**
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* Writes the incoming data to both the output streams.
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*
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* @param b The bytes to write out to the streams.
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* @param off The offset into the byte data where writing should begin.
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* @param len The number of bytes to write.
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* @throws IOException
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*/
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public void write(byte[] b, int off, int len) throws IOException { |
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captureStream.write(b, off, len); |
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passThroughStream.write(b, off, len); |
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} |
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} |
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