/*
 * BufferedResponse.java
 *
 * Created on June 2, 2005, 2:15 PM
 *
 * To change this template, choose Tools | Options and locate the template under
 * the Source Creation and Management node. Right-click the template and choose
 * Open. You can then make changes to the template in the Source Editor.
 */

package com.xpn.xwiki.web.includeservletasstring;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.OutputStreamWriter;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;

/**
 *
 * @author LBlaze
 */
public class BufferedResponse
extends HttpServletResponseWrapper {
  
    protected HttpServletResponse internalResponse;
    
    protected BufferOutputStream outputStream;
    protected PrintWriter writer;
  
    /** Creates a new instance of BufferedResponse */
    public BufferedResponse(HttpServletResponse internalResponse) {
      
        super(internalResponse);
      
        this.internalResponse = internalResponse;
    }

    
    public ServletOutputStream getOutputStream()
    throws IOException
    {
        if( outputStream == null )
        {
            outputStream = new BufferOutputStream();
        }
        return outputStream;
    }

    
    public PrintWriter getWriter()
    throws IOException
    {
        if( writer == null )
        {
            writer = new PrintWriter(new OutputStreamWriter(getOutputStream(), getCharacterEncoding()));
        }
        return writer;
    }
    
    
    public byte[] getBufferAsByteArray()
    throws IOException
    {
        if( writer != null )
        {
            writer.flush();
        }
        outputStream.flush();
        
        return outputStream.getContentsAsByteArray();
    }
    
  
}