1   /**
2    * Copyright (c) 2000-2008 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.kernel.job.JobSchedulerUtil;
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.search.lucene.CleanUpJob;
30  import com.liferay.portal.search.lucene.LuceneIndexer;
31  import com.liferay.portal.search.lucene.LuceneUtil;
32  import com.liferay.portal.util.PortalInstances;
33  import com.liferay.portal.util.PropsKeys;
34  import com.liferay.portal.util.PropsUtil;
35  import com.liferay.portal.util.PropsValues;
36  
37  import java.util.ArrayList;
38  import java.util.List;
39  
40  import javax.servlet.ServletConfig;
41  import javax.servlet.ServletException;
42  import javax.servlet.http.HttpServlet;
43  
44  import org.apache.commons.logging.Log;
45  import org.apache.commons.logging.LogFactory;
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 filterConfig) throws ServletException {
57          super.init(filterConfig);
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(PropsKeys.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(PropsKeys.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(
90                      new ObjectValuePair<LuceneIndexer, Thread>(
91                          indexer, indexerThread));
92              }
93              else {
94                  LuceneUtil.checkLuceneDir(companyId);
95              }
96  
97              if (PropsValues.LUCENE_STORE_JDBC_AUTO_CLEAN_UP) {
98                  JobSchedulerUtil.schedule(new CleanUpJob());
99              }
100         }
101     }
102 
103     public void destroy() {
104 
105         // Wait for indexer to be gracefully interrupted
106 
107         for (int i = 0; i < _indexers.size(); i++) {
108             ObjectValuePair<LuceneIndexer, Thread> ovp = _indexers.get(i);
109 
110             LuceneIndexer indexer = ovp.getKey();
111             Thread indexerThread = ovp.getValue();
112 
113             if ((indexer != null) && (!indexer.isFinished()) &&
114                 (indexerThread != null)) {
115 
116                 if (_log.isWarnEnabled()) {
117                     _log.warn("Waiting for Lucene indexer to shutdown");
118                 }
119 
120                 indexer.halt();
121 
122                 try {
123                     indexerThread.join(THREAD_TIMEOUT);
124                 }
125                 catch (InterruptedException e) {
126                     _log.error("Lucene indexer shutdown interrupted", e);
127                 }
128             }
129         }
130 
131         // Parent
132 
133         super.destroy();
134     }
135 
136     private static final String THREAD_NAME = LuceneIndexer.class.getName();
137 
138     private static final int THREAD_PRIORITY = Thread.MIN_PRIORITY;
139 
140     private static final int THREAD_TIMEOUT = 60000;
141 
142     private static Log _log = LogFactory.getLog(LuceneServlet.class);
143 
144     private List<ObjectValuePair<LuceneIndexer, Thread>> _indexers =
145         new ArrayList<ObjectValuePair<LuceneIndexer, Thread>>();
146 
147 }