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Java > Open Source Codes > org > tigris > scarab > actions > admin > UpdateSearchIndex


1 package org.tigris.scarab.actions.admin;
2
3 /* ================================================================
4  * Copyright (c) 2000-2002 CollabNet. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are
8  * met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in the
15  * documentation and/or other materials provided with the distribution.
16  *
17  * 3. The end-user documentation included with the redistribution, if
18  * any, must include the following acknowlegement: "This product includes
19  * software developed by Collab.Net <http://www.Collab.Net/>."
20  * Alternately, this acknowlegement may appear in the software itself, if
21  * and wherever such third-party acknowlegements normally appear.
22  *
23  * 4. The hosted project names must not be used to endorse or promote
24  * products derived from this software without prior written
25  * permission. For written permission, please contact info@collab.net.
26  *
27  * 5. Products derived from this software may not use the "Tigris" or
28  * "Scarab" names nor may "Tigris" or "Scarab" appear in their names without
29  * prior written permission of Collab.Net.
30  *
31  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
32  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
33  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
34  * IN NO EVENT SHALL COLLAB.NET OR ITS CONTRIBUTORS BE LIABLE FOR ANY
35  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
37  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
38  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
39  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
40  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42  *
43  * ====================================================================
44  *
45  * This software consists of voluntary contributions made by many
46  * individuals on behalf of Collab.Net.
47  */
48
49
50 // Turbine Stuff
51 import org.apache.turbine.TemplateContext;
52 import org.apache.turbine.RunData;
53
54 // Scarab Stuff
55 import org.tigris.scarab.tools.ScarabRequestTool;
56 import org.tigris.scarab.tools.ScarabLocalizationTool;
57 import org.tigris.scarab.actions.base.RequireLoginFirstAction;
58 import org.tigris.scarab.util.word.SearchFactory;
59 import org.tigris.scarab.util.word.SearchIndex;
60 import org.tigris.scarab.util.Log;
61
62 /**
63  * This class allows an admin to update the search index. It performs
64  * its magic by creating a background thread which executes until it is
65  * finished. The page will continue to refresh until the thread is
66  * done executing.
67  *
68  * @author <a HREF="mailto:jmcnally@collab.net">John McNally</a>
69  * @author <a HREF="mailto:jon@collab.net">Jon Scott Stevens</a>
70  * @version $Id: UpdateSearchIndex.java 9104 2004-05-10 21:04:51Z dabbous $
71  */
72 public class UpdateSearchIndex extends RequireLoginFirstAction
73 {
74     private static ThreadGroup JavaDoc tg = null;
75     private static int seconds = 5;
76     private static int counter = 0;
77
78     private void reset()
79     {
80         seconds = 5;
81         counter = 0;
82         tg = null;
83     }
84
85     public void doPerform(RunData data, TemplateContext context)
86         throws Exception JavaDoc
87     {
88         ScarabRequestTool scarabR = getScarabRequestTool(context);
89         ScarabLocalizationTool l10n = getLocalizationTool(context);
90         
91         synchronized (this)
92         {
93             Integer JavaDoc inttime = new Integer JavaDoc(seconds);
94             Object JavaDoc[] time = {inttime};
95             if (tg == null)
96             {
97                 try
98                 {
99                     tg = new ThreadGroup JavaDoc("UpdateIndex");
100                     Thread JavaDoc updateThread = new Thread JavaDoc(tg, new UpdateThread());
101                     updateThread.start();
102                     context.put("updateFrequency", inttime.toString());
103                     scarabR.setConfirmMessage(l10n.format("SearchIndexDoNoteLeavePage",time));
104                 }
105                 catch (Exception JavaDoc e)
106                 {
107                     reset();
108                     context.put("updateFrequency", "");
109                     scarabR.setAlertMessage(l10n.getMessage(e));
110                 }
111             }
112             else if (tg.activeCount() == 0)
113             {
114                 reset();
115                 context.put("updateFrequency", "");
116                 scarabR.setConfirmMessage(l10n.get("SearchIndexUpdated"));
117             }
118             else
119             {
120                 if (counter > 5)
121                 {
122                     seconds = 15;
123                 }
124                 else if (counter > 10)
125                 {
126                     seconds = 20;
127                 }
128                 context.put("updateFrequency", inttime.toString());
129                 scarabR.setConfirmMessage(l10n.format("SearchIndexDoNoteLeavePage",time));
130                 counter++;
131             }
132         }
133
134         String JavaDoc template = getCurrentTemplate(data, null);
135         String JavaDoc nextTemplate = getNextTemplate(data, template);
136         setTarget(data, nextTemplate);
137     }
138
139     public class UpdateThread implements Runnable JavaDoc
140     {
141         public UpdateThread()
142         {
143         }
144
145         public void run()
146         {
147             try
148             {
149                 Log.get().info("Update index started!");
150                 SearchIndex indexer = SearchFactory.getInstance();
151                 indexer.updateIndex();
152                 Log.get().info("Update index completed!");
153             }
154             catch (Exception JavaDoc e)
155             {
156                 Log.get().error("Update index failed:", e);
157             }
158         }
159     }
160 }
161
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