RefByteArrayOutputStream


1   /*
2    * 
3    * Jsmtpd, Java SMTP daemon
4    * Copyright (C) 2005  Jean-Francois POUX, jf.poux@laposte.net
5    *
6    * This program is free software; you can redistribute it and/or
7    * modify it under the terms of the GNU General Public License
8    * as published by the Free Software Foundation; either version 2
9    * of the License, or (at your option) any later version.
10   *
11   * This program is distributed in the hope that it will be useful,
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   * GNU General Public License for more details.
15   *
16   * You should have received a copy of the GNU General Public License
17   * along with this program; if not, write to the Free Software
18   * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19   *
20   */
21  package org.jsmtpd.core.common.io;
22  
23  import java.io.ByteArrayOutputStream  ;
24  
25  
26  /**
27   * A ByteArrayOutputStream with acces to internal buffer without copying it.
28   * For single thread env
29   * 
30   * @author Jean-Francois POUX
31   */
32  public class RefByteArrayOutputStream extends ByteArrayOutputStream   {
33      public byte[] toRefByteArray () {
34          return this.buf;
35      }
36      public int validData (){
37          return this.count;
38      }
39      public void remove (int n) {
40          if (this.count>=n) {
41              count-=n;
42          }
43      }
44      public String   toString (){
45          return new String  (buf);
46      }
47  }
48

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