1//
2//  ========================================================================
3//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
4//  ------------------------------------------------------------------------
5//  All rights reserved. This program and the accompanying materials
6//  are made available under the terms of the Eclipse Public License v1.0
7//  and Apache License v2.0 which accompanies this distribution.
8//
9//      The Eclipse Public License is available at
10//      http://www.eclipse.org/legal/epl-v10.html
11//
12//      The Apache License v2.0 is available at
13//      http://www.opensource.org/licenses/apache2.0.php
14//
15//  You may elect to redistribute this code under either of these licenses.
16//  ========================================================================
17//
18
19package org.eclipse.jetty.io;
20
21import java.text.DateFormatSymbols;
22import java.util.Locale;
23
24import org.eclipse.jetty.util.DateCache;
25
26public class BufferDateCache extends DateCache
27{
28    Buffer _buffer;
29    String _last;
30
31    public BufferDateCache()
32    {
33        super();
34    }
35
36    public BufferDateCache(String format, DateFormatSymbols s)
37    {
38        super(format,s);
39    }
40
41    public BufferDateCache(String format, Locale l)
42    {
43        super(format,l);
44    }
45
46    public BufferDateCache(String format)
47    {
48        super(format);
49    }
50
51    public synchronized Buffer formatBuffer(long date)
52    {
53        String d = super.format(date);
54        if (d==_last)
55            return _buffer;
56        _last=d;
57        _buffer=new ByteArrayBuffer(d);
58
59        return _buffer;
60    }
61}
62