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1   //========================================================================
2   //$Id: SimpleBuffers.java,v 1.1 2005/10/05 14:09:25 janb Exp $
3   //Copyright 2004-2005 Mort Bay Consulting Pty. Ltd.
4   //------------------------------------------------------------------------
5   //Licensed under the Apache License, Version 2.0 (the "License");
6   //you may not use this file except in compliance with the License.
7   //You may obtain a copy of the License at 
8   //http://www.apache.org/licenses/LICENSE-2.0
9   //Unless required by applicable law or agreed to in writing, software
10  //distributed under the License is distributed on an "AS IS" BASIS,
11  //WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  //See the License for the specific language governing permissions and
13  //limitations under the License.
14  //========================================================================
15  
16  package org.mortbay.io;
17  
18  /* ------------------------------------------------------------ */
19  /** SimpleBuffers.
20   * Simple implementation of Buffers holder.
21   * @author gregw
22   *
23   */
24  public class SimpleBuffers implements Buffers
25  {   
26      Buffer[] _buffers;
27      
28      /* ------------------------------------------------------------ */
29      /**
30       * 
31       */
32      public SimpleBuffers(Buffer[] buffers)
33      {
34          _buffers=buffers;
35      }
36  
37      /* ------------------------------------------------------------ */
38      /* 
39       * @see org.mortbay.io.Buffers#getBuffer(boolean)
40       */
41      public Buffer getBuffer(int size)
42      {
43          if (_buffers!=null)
44          {
45              for (int i=0;i<_buffers.length;i++)
46              {
47                  if (_buffers[i]!=null && _buffers[i].capacity()==size)
48                  {
49                      Buffer b=_buffers[i];
50                      _buffers[i]=null;
51                      return b;
52                  }
53              }
54          }
55          return new ByteArrayBuffer(size);
56      }
57  
58      /* ------------------------------------------------------------ */
59      /* 
60       * @see org.mortbay.io.Buffers#returnBuffer(org.mortbay.io.Buffer)
61       */
62      public void returnBuffer(Buffer buffer)
63      {
64          buffer.clear();
65          if (_buffers!=null)
66          {
67              for (int i=0;i<_buffers.length;i++)
68              {
69                  if (_buffers[i]==null)
70                      _buffers[i]=buffer;
71              }
72          }
73      }
74      
75  
76  }