i have no idea where the bug i just found came from.
[mir.git] / source / mircoders / producer / IndexingProducerNode.java
1 /* Copyright (C) 2001, 2002  The Mir-coders group
2  *
3  * This file is part of Mir.
4  *
5  * Mir is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * Mir is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with Mir; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  *
19  * In addition, as a special exception, The Mir-coders gives permission to link
20  * the code of this program with the com.oreilly.servlet library, any library
21  * licensed under the Apache Software License, The Sun (tm) Java Advanced
22  * Imaging library (JAI), The Sun JIMI library (or with modified versions of
23  * the above that use the same license as the above), and distribute linked
24  * combinations including the two.  You must obey the GNU General Public
25  * License in all respects for all of the code used other than the above
26  * mentioned libraries.  If you modify this file, you may extend this exception
27  * to your version of the file, but you are not obligated to do so.  If you do
28  * not wish to do so, delete this exception statement from your version.
29  */
30
31 package mircoders.producer;
32
33 import java.util.*;
34 import java.io.*;
35
36 import org.apache.lucene.analysis.standard.StandardAnalyzer;
37 import org.apache.lucene.index.*;
38 import org.apache.lucene.document.Document;
39 import org.apache.lucene.document.Field;
40 import org.apache.lucene.store.FSDirectory;
41
42 import freemarker.template.*;
43
44
45 import mir.util.*;
46 import mir.log.*;
47 import mir.producer.*;
48 //import mir.generator.*;
49 import mircoders.global.*;
50 import mircoders.localizer.*;
51 import mir.entity.*;
52 import mir.entity.adapter.*;
53 import mircoders.entity.*;
54 import mircoders.storage.*;
55 import mircoders.search.*;
56
57
58 public class IndexingProducerNode implements ProducerNode {
59   private String contentKey;
60   private String indexPath;
61
62
63   public IndexingProducerNode(String aContentKey, String pathToIndex) {
64     contentKey = aContentKey;
65     indexPath=pathToIndex;
66   }
67
68   public void produce(Map aValueMap, String aVerb, LoggerWrapper aLogger) throws ProducerFailure {
69     IndexReader indexReader = null;
70     IndexWriter indexWriter = null;
71     Object data;
72     Entity entity;
73
74     long startTime;
75     long endTime;
76
77     startTime = System.currentTimeMillis();
78
79     try {
80       data = ParameterExpander.findValueForKey( aValueMap, contentKey );
81
82       if (! (data instanceof EntityAdapter)) {
83         throw new ProducerFailure("IndexingProducerNode: value of '"+contentKey+"' is not an EntityAdapter, but an " + data.getClass().getName(), null);
84       }
85
86       entity = ((EntityAdapter) data).getEntity();
87       if (! (entity instanceof EntityContent)) {
88         throw new ProducerFailure("IndexingProducerNode: value of '"+contentKey+"' is not a content EntityAdapter, but a " + entity.getClass().getName() + " adapter", null);
89       }
90       aLogger.info("Indexing " + (String) entity.getValue("id") + " into " + indexPath);
91
92       // create an index here if one did not already exist
93       if (! (IndexReader.indexExists(indexPath))){
94         aLogger.error("Didn't find existing index, so I'm making one in "+indexPath);
95         IndexWriter indexCreator = new IndexWriter(indexPath,new StandardAnalyzer(),true);
96         indexCreator.close();
97       }
98
99       indexReader = IndexReader.open(indexPath);
100       indexReader.delete(new Term("id",entity.getValue("id")));
101       indexReader.close();
102
103       indexWriter = new IndexWriter(indexPath, new StandardAnalyzer(), false);
104       Document theDoc =  new Document();
105
106       // Keyword is stored and indexed, but not tokenized
107       // Text is tokenized,stored, indexed
108       // Unindexed is not tokenized or indexed, only stored
109       // Unstored is tokenized and indexed, but not stored
110       
111       //this initialization should go somewhere global like an xml file....
112
113       (new KeywordSearchTerm("id","","id","","id")).index(theDoc,entity);
114       
115       (new KeywordSearchTerm("webdb_create_formatted","search_date","webdb_create_formatted","webdb_create_formatted","webdb_create_formatted")).index(theDoc,entity);
116       
117       (new UnIndexedSearchTerm("","","","where","where")).indexValue(theDoc,entity.getValue("publish_path")+entity.getValue("id")+".shtml");
118
119       (new TextSearchTerm("creator","search_creator","creator","creator","creator")).index(theDoc,entity);
120       (new TextSearchTerm("title","search_title","title","title","title")).index(theDoc,entity);
121       (new UnIndexedSearchTerm("description","search_content","description","description","description")).index(theDoc,entity);
122       (new UnIndexedSearchTerm("webdb_create","search_irrelevant","creationDate","creationDate","creationDate")).index(theDoc,entity);
123
124       (new ContentSearchTerm("content_data","search_content","content","","")).indexValue(theDoc,
125                                                                                      entity.getValue("content_data")+ " "
126                                                                                      + entity.getValue("description")+ " "
127                                                                                      + entity.getValue("title")
128                                                                                      );
129
130       (new TopicSearchTerm()).index(theDoc,entity);
131
132       (new ImagesSearchTerm()).index(theDoc,entity);
133       
134       (new AudioSearchTerm()).index(theDoc,entity);
135       
136       (new VideoSearchTerm()).index(theDoc,entity);
137
138
139       //comments-just aggregate all relevant fields
140       //removed until i get a chance to do this right
141
142       //String commentsAggregate = "";
143       //TemplateModel comments=entity.get("to_comments");
144       //if (comments != null){
145       // while (((TemplateListModel)comments).hasNext()){
146       //    TemplateModel aComment = ((TemplateListModel)comments).next();
147       //    commentsAggregate = commentsAggregate + " " + ((TemplateHashModel)aComment).get("title").toString()
148       //     + " " + ((TemplateHashModel)aComment).get("creator").toString()
149       //      + " " + ((TemplateHashModel)aComment).get("text").toString();
150       //  }
151       //}
152       //theDoc.add(Field.UnStored("comments",commentsAggregate));
153
154       indexWriter.addDocument(theDoc);
155
156
157     }
158     catch (Throwable t) {
159       aLogger.error("Error while indexing content: " + t.getMessage());
160       t.printStackTrace(new PrintWriter(new LoggerToWriterAdapter(aLogger, LoggerWrapper.DEBUG_MESSAGE)));
161     }
162     finally {
163       if (indexReader != null){
164         try{
165           indexReader.close();
166         }
167         catch (Throwable t) {
168           aLogger.warn("Error while closing indexReader: " + t.getMessage());
169         }
170
171       }
172
173       if (indexWriter != null){
174         try{
175           indexWriter.close();
176         }
177         catch (Throwable t) {
178           aLogger.warn("Error while closing indexWriter: " + t.getMessage());
179         }
180
181       }
182
183
184       try{
185         FSDirectory theIndexDir=FSDirectory.getDirectory(indexPath,false);
186         if (indexReader.isLocked(theIndexDir)){
187           indexReader.unlock(theIndexDir);
188         }
189       }
190       catch (Throwable t) {
191         aLogger.warn("Error while unlocking index: " + t.getMessage());
192       }
193     }
194
195
196
197
198     endTime = System.currentTimeMillis();
199
200     aLogger.info("  IndexTime: " + (endTime-startTime) + " ms<br>");
201   }
202 }
203
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