1 /* WebappLifecycle
2 *
3 * Created on Oct 26, 2004
4 *
5 * Copyright (C) 2004 Internet Archive.
6 *
7 * This file is part of the Heritrix web crawler (crawler.archive.org).
8 *
9 * Heritrix is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU Lesser Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * any later version.
13 *
14 * Heritrix is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Lesser Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser Public License
20 * along with Heritrix; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23 package org.archive.crawler;
24
25 import java.io.IOException;
26
27 import javax.servlet.ServletContextEvent;
28 import javax.servlet.ServletContextListener;
29
30
31 /***
32 * Calls start and stop of Heritrix when Heritrix is bundled as a webapp.
33 * @author stack
34 * @version $Date: 2005-11-17 00:55:56 +0000 (Thu, 17 Nov 2005) $, $Revision: 3959 $
35 */
36 public class WebappLifecycle implements ServletContextListener {
37 private Heritrix heritrix = null;
38 public void contextInitialized(ServletContextEvent sce) {
39 if (!Heritrix.isCommandLine()) {
40 try {
41 this.heritrix = new Heritrix(true);
42 } catch (IOException e) {
43 e.printStackTrace();
44 }
45 if (this.heritrix != null) {
46 this.heritrix.start();
47 }
48 }
49 }
50
51 public void contextDestroyed(ServletContextEvent sce) {
52 if (this.heritrix != null) {
53 this.heritrix.destroy();
54 this.heritrix = null;
55 }
56 }
57 }