GenericResponseWrapper.java

package org.activiti.explorer.servlet;

import java.io.ByteArrayOutputStream;
import java.io.PrintWriter;

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

public class GenericResponseWrapper extends HttpServletResponseWrapper { 
  private ByteArrayOutputStream output;
  private int contentLength;
  private String contentType;

  public GenericResponseWrapper(HttpServletResponse response) { 
    super(response);
    output=new ByteArrayOutputStream();
  } 

  public byte[] getData() { 
    return output.toByteArray(); 
  } 

  public ServletOutputStream getOutputStream() { 
    return new FilterServletOutputStream(output); 
  } 
  
  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; 
  } 
}