CompressionResponseStream

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compressionFilters
Class CompressionResponseStream

java.lang.Object
  java.io.OutputStream
      javax.servlet.ServletOutputStream
          compressionFilters.CompressionResponseStream

public class CompressionResponseStream
extends javax.servlet.ServletOutputStream

Implementation of ServletOutputStream that works with the CompressionServletResponseWrapper implementation.

Version:: $Revision: 267129 $, $Date: 2004-03-18 11:40:35 -0500 (Thu, 18 Mar 2004) $

Field Summary

protected byte[] buffer
          The buffer through which all of our output bytes are passed.

protected int bufferCount
          The number of data bytes currently in the buffer.

protected boolean closed
          Has this stream been closed?

protected int compressionThreshold
          The threshold number which decides to compress or not.

private int debug
          Debug level

protected java.util.zip.GZIPOutputStream gzipstream
          The underlying gzip output stream to which we should write data.

protected int length
          The content length past which we will not write, or -1 if there is no defined content length.

protected javax.servlet.ServletOutputStream output
          The underlying servket output stream to which we should write data.

protected javax.servlet.http.HttpServletResponse response
          The response with which this servlet output stream is associated.

Fields inherited from class javax.servlet.ServletOutputStream

Constructor Summary

CompressionResponseStream(javax.servlet.http.HttpServletResponse response)
          Construct a servlet output stream associated with the specified Response.

Method Summary

void close()
          Close this output stream, causing any buffered data to be flushed and any further output data to throw an IOException.

boolean closed()
          Has this response stream been closed?

void flush()
          Flush any buffered data for this output stream, which also causes the response to be committed.

void flushToGZip()


protected void setBuffer(int threshold)
          Set the compressionThreshold number and create buffer for this size

void setDebugLevel(int debug)
          Set debug level

void write(byte[] b)
          Write b.length bytes from the specified byte array to our output stream.

void write(byte[] b, int off, int len)
          Write len bytes from the specified byte array, starting at the specified offset, to our output stream.

void write(int b)
          Write the specified byte to our output stream.

void writeToGZip(byte[] b, int off, int len)


Methods inherited from class javax.servlet.ServletOutputStream

print, print, print, print, print, print, print, println, println, println, println, println, println, println, println

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

compressionThreshold

protected int compressionThreshold

The threshold number which decides to compress or not. Users can configure in web.xml to set it to fit their needs.

debug

private int debug

Debug level

buffer

protected byte[] buffer

The buffer through which all of our output bytes are passed.

bufferCount

protected int bufferCount

The number of data bytes currently in the buffer.

gzipstream

protected java.util.zip.GZIPOutputStream gzipstream

The underlying gzip output stream to which we should write data.

closed

protected boolean closed

Has this stream been closed?

length

protected int length

The content length past which we will not write, or -1 if there is no defined content length.

response

protected javax.servlet.http.HttpServletResponse response

The response with which this servlet output stream is associated.

output

protected javax.servlet.ServletOutputStream output

The underlying servket output stream to which we should write data.

Constructor Detail