/*

  * Copyright (C) The Apache Software Foundation. All rights reserved.

  *

  * This software is published under the terms of the Apache Software License

  * version 1.1, a copy of which has been included with this distribution in

  * the LICENSE file.

  * 

  * $Id: BufferedServletOutputStream.java 155459 2005-02-26 13:24:44Z dirkv $

  */

 package org.apache.commons.messagelet.impl;

 import java.io.ByteArrayOutputStream;

 import java.io.IOException;

 import java.io.OutputStream;

 import java.io.UnsupportedEncodingException;

 import javax.servlet.ServletOutputStream;

 /** 

  * <p><code>BufferedServletOutputStream</code> implements

  * a buffered ServletOutputStream in a similar way to

  * ByteArrayOutputStream represents a buffered OutputStream.</p>

  *

   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>

   * @version $Revision: 155459 $

  */

 public class BufferedServletOutputStream extends ServletOutputStream {

     /** The underlying <code>ByteArrayOutputStream</code> that the output

      * is written to */

     protected ByteArrayOutputStream buffer;

     public BufferedServletOutputStream() {

         buffer = new ByteArrayOutputStream();

     }

     public BufferedServletOutputStream(int size) {

         buffer = new ByteArrayOutputStream(size);

     }

     // Delegating methods from OutputStream

     //-------------------------------------------------------------------------    

     public void write(byte[] b) throws  IOException {

         buffer.write(b);

     }

     public void write(byte[] b, int off, int len) throws  IOException {

         buffer.write(b, off, len);

     }

     public void write(int b) throws  IOException {

         buffer.write(b);

     }

     public void close() throws  IOException {

         buffer.close();

     }

     public void flush() throws  IOException {

         buffer.flush();

     }    

     // Methods promoted from ByteArrayOutputStream

     //-------------------------------------------------------------------------    

     /** Resets the count field of this buffer to zero, 

      * so that all currently accumulated output in the 

      * ouput stream is discarded. 

      */

     public void reset() {

         buffer.reset();

     }

     /** Returns the current size of the buffer. 

      */ 

     public int size() {

         return buffer.size();

     }

     /** Creates a newly allocated byte array. 

      */

     public byte[] toByteArray() {

         return buffer.toByteArray();

     }

     /** Converts the buffer's contents into a string, 

      * translating bytes into characters according 

      * to the platform's default character encoding. 

      */          

     public String toString() {

         return buffer.toString();

     }

     /** Converts the buffer's contents into a string, 

      * translating bytes into characters according 

      * to the specified character encoding. 

      */

     public String toString(String enc) throws UnsupportedEncodingException {

         return buffer.toString(enc);

     }

     /** Writes the complete contents of this buffer

      * to the specified output stream argument, 

      * as if by calling the output stream's write 

      * method using out.write(buf, 0, count). 

      */

     public void writeTo(OutputStream out) throws  IOException {

         buffer.writeTo(out);

     }

 }