1   /**
2    * Copyright (c) 2000-2007 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.servlet;
24  
25  import com.liferay.portal.job.JobScheduler;
26  import com.liferay.portal.kernel.util.GetterUtil;
27  import com.liferay.portal.kernel.util.ObjectValuePair;
28  import com.liferay.portal.kernel.util.ServerDetector;
29  import com.liferay.portal.lucene.CleanUpJob;
30  import com.liferay.portal.lucene.LuceneIndexer;
31  import com.liferay.portal.lucene.LuceneUtil;
32  import com.liferay.portal.util.PortalInstances;
33  import com.liferay.portal.util.PropsUtil;
34  
35  import java.util.ArrayList;
36  import java.util.List;
37  
38  import javax.servlet.ServletConfig;
39  import javax.servlet.ServletException;
40  import javax.servlet.http.HttpServlet;
41  
42  import org.apache.commons.logging.Log;
43  import org.apache.commons.logging.LogFactory;
44  
45  import org.quartz.SchedulerException;
46  
47  /**
48   * <a href="LuceneServlet.java.html"><b><i>View Source</i></b></a>
49   *
50   * @author Brian Wing Shun Chan
51   * @author Jorge Ferrer
52   *
53   */
54  public class LuceneServlet extends HttpServlet {
55  
56      public void init(ServletConfig config) throws ServletException {
57          super.init(config);
58  
59          long[] companyIds = PortalInstances.getCompanyIds();
60  
61          for (int i = 0; i < companyIds.length; i++) {
62              long companyId = companyIds[i];
63  
64              if (GetterUtil.getBoolean(
65                      PropsUtil.get(PropsUtil.INDEX_ON_STARTUP))) {
66  
67                  if (_log.isInfoEnabled()) {
68                      _log.info("Indexing Lucene on startup");
69                  }
70  
71                  LuceneIndexer indexer = new LuceneIndexer(companyId);
72                  Thread indexerThread = null;
73  
74                  if (GetterUtil.getBoolean(
75                          PropsUtil.get(PropsUtil.INDEX_WITH_THREAD)) ||
76                      ServerDetector.isOrion()) {
77  
78                      indexerThread = new Thread(
79                          indexer, THREAD_NAME + "." + companyId);
80  
81                      indexerThread.setPriority(THREAD_PRIORITY);
82  
83                      indexerThread.start();
84                  }
85                  else {
86                      indexer.reIndex();
87                  }
88  
89                  _indexers.add(new ObjectValuePair(indexer, indexerThread));
90              }
91              else {
92                  LuceneUtil.checkLuceneDir(companyId);
93              }
94  
95              if (GetterUtil.getBoolean(
96                      PropsUtil.get(PropsUtil.LUCENE_STORE_JDBC_AUTO_CLEAN_UP))) {
97  
98                  try {
99                      JobScheduler.schedule(new CleanUpJob());
100                 }
101                 catch (SchedulerException se) {
102                     _log.error(se);
103                 }
104             }
105         }
106     }
107 
108     public void destroy() {
109 
110         // Wait for indexer to be gracefully interrupted
111 
112         for (int i = 0; i < _indexers.size(); i++) {
113             ObjectValuePair ovp = (ObjectValuePair)_indexers.get(i);
114 
115             LuceneIndexer indexer = (LuceneIndexer)ovp.getKey();
116             Thread indexerThread = (Thread)ovp.getValue();
117 
118             if ((indexer != null) && (!indexer.isFinished()) &&
119                 (indexerThread != null)) {
120 
121                 if (_log.isWarnEnabled()) {
122                     _log.warn("Waiting for Lucene indexer to shutdown");
123                 }
124 
125                 indexer.halt();
126 
127                 try {
128                     indexerThread.join(THREAD_TIMEOUT);
129                 }
130                 catch (InterruptedException e) {
131                     _log.error("Lucene indexer shutdown interrupted", e);
132                 }
133             }
134         }
135 
136         // Parent
137 
138         super.destroy();
139     }
140 
141     private static final String THREAD_NAME = LuceneIndexer.class.getName();
142 
143     private static final int THREAD_PRIORITY = Thread.MIN_PRIORITY;
144 
145     private static final int THREAD_TIMEOUT = 60000;
146 
147     private static Log _log = LogFactory.getLog(LuceneServlet.class);
148 
149     private List _indexers = new ArrayList();
150 
151 }