1 /**
2 * MicroEmulator
3 * Copyright (C) 2001-2007 Bartek Teodorczyk <barteo@barteo.net>
4 * Copyright (C) 2006-2007 Vlad Skarzhevskyy
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library 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 GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 * @version $Id: QueueAppender.java 1197 2007-05-02 16:30:29Z vlads $
21 */
22 package org.microemu.log;
23
24 import java.util.LinkedList;
25 import java.util.List;
26
27 public class QueueAppender implements LoggerAppender {
28
29 private int buferSize;
30
31 private List queue = new LinkedList();
32
33 public QueueAppender(int buferSize) {
34 this.buferSize = buferSize;
35 }
36
37 public void append(LoggingEvent event) {
38 queue.add(event);
39 if (queue.size() > buferSize) {
40 queue.remove(0);
41 }
42 }
43
44 public LoggingEvent poll() {
45 if (queue.size() == 0) {
46 return null;
47 }
48 return (LoggingEvent) queue.remove(0);
49 }
50
51 }