org.blojsom.filter
Class GZIPResponseWrapper

java.lang.Object
  javax.servlet.ServletResponseWrapper
      javax.servlet.http.HttpServletResponseWrapper
          org.blojsom.filter.GZIPResponseWrapper

All Implemented Interfaces:

javax.servlet.http.HttpServletResponse, javax.servlet.ServletResponse

public class GZIPResponseWrapper

extends javax.servlet.http.HttpServletResponseWrapper

GZIPResponseWrapper

Copyright 2003 Jayson Falkner (jayson@jspinsider.com) This code is from "Servlets and JavaServer pages; the J2EE Web Tier", http://www.jspbook.com. You may freely use the code both commercially and non-commercially. If you like the code, please pick up a copy of the book and help support the authors, development of more free code, and the JSP/Servlet/J2EE community.

Since:

blojsom 2.10

Version:

$Id: GZIPResponseWrapper.java,v 1.6 2006/01/04 16:59:54 czarneckid Exp $

Field Summary

protected javax.servlet.http.HttpServletResponse	origResponse
protected javax.servlet.ServletOutputStream	stream
protected java.io.PrintWriter	writer

Fields inherited from interface javax.servlet.http.HttpServletResponse

SC_ACCEPTED, SC_BAD_GATEWAY, SC_BAD_REQUEST, SC_CONFLICT, SC_CONTINUE, SC_CREATED, SC_EXPECTATION_FAILED, SC_FORBIDDEN, SC_GATEWAY_TIMEOUT, SC_GONE, SC_HTTP_VERSION_NOT_SUPPORTED, SC_INTERNAL_SERVER_ERROR, SC_LENGTH_REQUIRED, SC_METHOD_NOT_ALLOWED, SC_MOVED_PERMANENTLY, SC_MOVED_TEMPORARILY, SC_MULTIPLE_CHOICES, SC_NO_CONTENT, SC_NON_AUTHORITATIVE_INFORMATION, SC_NOT_ACCEPTABLE, SC_NOT_FOUND, SC_NOT_IMPLEMENTED, SC_NOT_MODIFIED, SC_OK, SC_PARTIAL_CONTENT, SC_PAYMENT_REQUIRED, SC_PRECONDITION_FAILED, SC_PROXY_AUTHENTICATION_REQUIRED, SC_REQUEST_ENTITY_TOO_LARGE, SC_REQUEST_TIMEOUT, SC_REQUEST_URI_TOO_LONG, SC_REQUESTED_RANGE_NOT_SATISFIABLE, SC_RESET_CONTENT, SC_SEE_OTHER, SC_SERVICE_UNAVAILABLE, SC_SWITCHING_PROTOCOLS, SC_TEMPORARY_REDIRECT, SC_UNAUTHORIZED, SC_UNSUPPORTED_MEDIA_TYPE, SC_USE_PROXY

Constructor Summary

GZIPResponseWrapper(javax.servlet.http.HttpServletResponse response)
Create a new GZIPResponseWrapper

Method Summary

javax.servlet.ServletOutputStream	createOutputStream() Create a new ServletOutputStream which returns a GZIPResponseStream
void	finishResponse() Finish the response
void	flushBuffer() Flush the output buffer
javax.servlet.ServletOutputStream	getOutputStream() Retrieve the output stream for this response wrapper
java.io.PrintWriter	getWriter() Retrieve a writer for this response wrapper
void	setContentLength(int length) Set the content length for the response.

Methods inherited from class javax.servlet.http.HttpServletResponseWrapper

addCookie, addDateHeader, addHeader, addIntHeader, containsHeader, encodeRedirectUrl, encodeRedirectURL, encodeUrl, encodeURL, sendError, sendError, sendRedirect, setDateHeader, setHeader, setIntHeader, setStatus, setStatus

Methods inherited from class javax.servlet.ServletResponseWrapper

getBufferSize, getCharacterEncoding, getLocale, getResponse, isCommitted, reset, resetBuffer, setBufferSize, setContentType, setLocale, setResponse

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.servlet.ServletResponse

getBufferSize, getCharacterEncoding, getLocale, isCommitted, reset, resetBuffer, setBufferSize, setContentType, setLocale

Field Detail

origResponse

protected javax.servlet.http.HttpServletResponse origResponse

stream

protected javax.servlet.ServletOutputStream stream

writer

protected java.io.PrintWriter writer

Constructor Detail

GZIPResponseWrapper

public GZIPResponseWrapper(javax.servlet.http.HttpServletResponse response)

Create a new GZIPResponseWrapper

Parameters:

response - Original HTTP servlet response

Method Detail

createOutputStream

public javax.servlet.ServletOutputStream createOutputStream()
                                                     throws java.io.IOException

Create a new ServletOutputStream which returns a GZIPResponseStream

Returns:

GZIPResponseStream object

Throws:

java.io.IOException - If there is an error creating the response stream

finishResponse

public void finishResponse()
                    throws java.io.IOException

Finish the response

Throws:

java.io.IOException

flushBuffer

public void flushBuffer()
                 throws java.io.IOException

Flush the output buffer

Throws:

java.io.IOException - If there is an error flushing the buffer

getOutputStream

public javax.servlet.ServletOutputStream getOutputStream()
                                                  throws java.io.IOException

Retrieve the output stream for this response wrapper

Returns:

createOutputStream()

Throws:

java.io.IOException - If there is an error retrieving the output stream

getWriter

public java.io.PrintWriter getWriter()
                              throws java.io.IOException

Retrieve a writer for this response wrapper

Returns:

PrintWriter that wraps an OutputStreamWriter (using UTF-8 as encoding)

Throws:

java.io.IOException - If there is an error retrieving the writer

setContentLength

public void setContentLength(int length)

Set the content length for the response. Currently a no-op.

Parameters:

length - Content length