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Java > Open Source Codes > net > jforum > util > search > quartz > QuartzSearchManager


1 /*
2  * Copyright (c) Rafael Steil
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms,
6  * with or without modification, are permitted provided
7  * that the following conditions are met:
8  *
9  * 1) Redistributions of source code must retain the above
10  * copyright notice, this list of conditions and the
11  * following disclaimer.
12  * 2) Redistributions in binary form must reproduce the
13  * above copyright notice, this list of conditions and
14  * the following disclaimer in the documentation and/or
15  * other materials provided with the distribution.
16  * 3) Neither the name of "Rafael Steil" nor
17  * the names of its contributors may be used to endorse
18  * or promote products derived from this software without
19  * specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
22  * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
23  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
24  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
27  * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
32  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
33  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
34  * IN CONTRACT, STRICT LIABILITY, OR TORT
35  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
36  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
37  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
38  *
39  * Created on Mar 11, 2005 11:52:24 AM
40  * The JForum Project
41  * http://www.jforum.net
42  */
43 package net.jforum.util.search.quartz;
44
45 import net.jforum.entities.Post;
46 import net.jforum.exceptions.SearchInstantiationException;
47 import net.jforum.util.preferences.ConfigKeys;
48 import net.jforum.util.preferences.SystemGlobals;
49 import net.jforum.util.search.SearchManager;
50
51 import org.apache.log4j.Logger;
52 import org.quartz.CronTrigger;
53 import org.quartz.JobDetail;
54 import org.quartz.Scheduler;
55 import org.quartz.Trigger;
56 import org.quartz.impl.StdSchedulerFactory;
57
58 /**
59  * @author Rafael Steil
60  * @version $Id: QuartzSearchManager.java,v 1.5 2005/11/29 00:27:01 rafaelsteil Exp $
61  */
62 public class QuartzSearchManager implements SearchManager
63 {
64     private static Logger logger = Logger.getLogger(QuartzSearchManager.class);
65     private static Scheduler scheduler;
66     /**
67      * @see net.jforum.util.search.SearchManager#init()
68      */
69     public void init()
70     {
71         try {
72             String JavaDoc filename = SystemGlobals.getValue(ConfigKeys.SEARCH_INDEXER_QUARTZ_CONFIG);
73             
74             SystemGlobals.loadAdditionalDefaults(filename);
75             String JavaDoc cronExpression = SystemGlobals.getValue(
76                     ConfigKeys.QUARTZ_CONTEXT + ConfigKeys.SEARCH_INDEXER_CRON_EXPRESSON);
77             
78             scheduler = new StdSchedulerFactory(filename).getScheduler();
79             Trigger trigger = new CronTrigger(QuartzSearchIndexerJob.class.getName(),
80                     "indexer",
81                     cronExpression);
82             
83             logger.info("Starting quartz search manager using expression " + cronExpression);
84             
85             scheduler.scheduleJob(new JobDetail(QuartzSearchIndexerJob.class.getName(),
86                     "indexer",
87                     QuartzSearchIndexerJob.class),
88                 trigger);
89             scheduler.start();
90         }
91         catch (Exception JavaDoc e) {
92             if (e.toString().indexOf("org.quartz.ObjectAlreadyExistsException") == -1) {
93                 throw new SearchInstantiationException("Error while trying to start " + this.getClass().getName() + ": " + e);
94             }
95         }
96     }
97
98     /**
99      * @see net.jforum.util.search.SearchManager#index(net.jforum.entities.Post)
100      */
101     public void index(Post post) {}
102 }
103
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