/* */package com.sun.j2ee.workflow.control.filters;import javax.servlet.ServletRequest;import javax.servlet.ServletResponse;import javax.servlet.ServletOutputStream;import javax.servlet.Filter;import javax.servlet.FilterChain;import javax.servlet.FilterConfig;import javax.servlet.http.HttpServletResponseWrapper;import javax.servlet.http.*;import java.io.*;/** * @author Jian (James) Cai */public class GenericResponseWrapper extends HttpServletResponseWrapper{     private ByteArrayOutputStream outstream;    //this outputstream seperates the response outputstream        private int contentLength;    private String contentType;        public GenericResponseWrapper(HttpServletResponse response)    { 	super(response);	outstream=new ByteArrayOutputStream();    }     public byte[] output()    {	return outstream.toByteArray();    }        public String stringoutput()    {	return outstream.toString();    }    public ServletOutputStream getOutputStream()    {	//instead of returnning getOutputStream() on the wrapped response object.	return new FilterServletOutputStream(outstream);    }        public ByteArrayOutputStream getByteStream()    {	return outstream;    }    public PrintWriter getWriter()    {	return new PrintWriter(getOutputStream(), true);    }        public void setContentLength(int length)    {	this.contentLength = length;	super.setContentLength(length);    }        public int getContentLength()    {	return contentLength;    }    public void setContentType(String type)    {	this.contentType = type;	super.setContentType(type);    }    public String getContentType()    {	return contentType;    }    }