1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights 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.log.Log;
27  import com.liferay.portal.kernel.log.LogFactoryUtil;
28  import com.liferay.portal.kernel.util.GetterUtil;
29  import com.liferay.portal.kernel.util.ObjectValuePair;
30  import com.liferay.portal.kernel.util.PropsKeys;
31  import com.liferay.portal.search.lucene.CleanUpJob;
32  import com.liferay.portal.search.lucene.LuceneIndexer;
33  import com.liferay.portal.util.PortalInstances;
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  /**
45   * <a href="LuceneServlet.java.html"><b><i>View Source</i></b></a>
46   *
47   * @author Brian Wing Shun Chan
48   * @author Jorge Ferrer
49   */
50  public class LuceneServlet extends HttpServlet {
51  
52      public void init(ServletConfig servletConfig) throws ServletException {
53          super.init(servletConfig);
54  
55          long[] companyIds = PortalInstances.getCompanyIds();
56  
57          for (int i = 0; i < companyIds.length; i++) {
58              long companyId = companyIds[i];
59  
60              if (GetterUtil.getBoolean(
61                      PropsUtil.get(PropsKeys.INDEX_ON_STARTUP))) {
62  
63                  if (_log.isInfoEnabled()) {
64                      _log.info("Indexing Lucene on startup");
65                  }
66  
67                  LuceneIndexer indexer = new LuceneIndexer(companyId);
68                  Thread indexerThread = null;
69  
70                  if (GetterUtil.getBoolean(
71                          PropsUtil.get(PropsKeys.INDEX_WITH_THREAD))) {
72  
73                      indexerThread = new Thread(
74                          indexer, THREAD_NAME + "." + companyId);
75  
76                      indexerThread.setPriority(THREAD_PRIORITY);
77  
78                      indexerThread.start();
79                  }
80                  else {
81                      indexer.reIndex();
82                  }
83  
84                  _indexers.add(
85                      new ObjectValuePair<LuceneIndexer, Thread>(
86                          indexer, indexerThread));
87              }
88  
89              if (PropsValues.LUCENE_STORE_JDBC_AUTO_CLEAN_UP) {
90                  JobSchedulerUtil.schedule(new CleanUpJob());
91              }
92          }
93      }
94  
95      public void destroy() {
96  
97          // Wait for indexer to be gracefully interrupted
98  
99          for (int i = 0; i < _indexers.size(); i++) {
100             ObjectValuePair<LuceneIndexer, Thread> ovp = _indexers.get(i);
101 
102             LuceneIndexer indexer = ovp.getKey();
103             Thread indexerThread = ovp.getValue();
104 
105             if ((indexer != null) && (!indexer.isFinished()) &&
106                 (indexerThread != null)) {
107 
108                 if (_log.isWarnEnabled()) {
109                     _log.warn("Waiting for Lucene indexer to shutdown");
110                 }
111 
112                 indexer.halt();
113 
114                 try {
115                     indexerThread.join(THREAD_TIMEOUT);
116                 }
117                 catch (InterruptedException e) {
118                     _log.error("Lucene indexer shutdown interrupted", e);
119                 }
120             }
121         }
122 
123         // Parent
124 
125         super.destroy();
126     }
127 
128     private static final String THREAD_NAME = LuceneIndexer.class.getName();
129 
130     private static final int THREAD_PRIORITY = Thread.MIN_PRIORITY;
131 
132     private static final int THREAD_TIMEOUT = 60000;
133 
134     private static Log _log = LogFactoryUtil.getLog(LuceneServlet.class);
135 
136     private List<ObjectValuePair<LuceneIndexer, Thread>> _indexers =
137         new ArrayList<ObjectValuePair<LuceneIndexer, Thread>>();
138 
139 }