[PATCH] LuceneSearchService - configurable analyzer, specified by class-name.

[Enrique Lara]

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Index: 
src/java/org/apache/jetspeed/services/search/lucene/LuceneSearchService.java
===================================================================
RCS file: 
/home/cvspublic/jakarta-jetspeed/src/java/org/apache/jetspeed/services/search/lucene/LuceneSearchService.java,v
retrieving revision 1.11
diff -u -r1.11 LuceneSearchService.java
--- 
src/java/org/apache/jetspeed/services/search/lucene/LuceneSearchService.java	19 
May 2004 21:04:41 -0000	1.11
+++ 
src/java/org/apache/jetspeed/services/search/lucene/LuceneSearchService.java	16 
Jun 2004 15:35:59 -0000
@@ -85,6 +85,10 @@
    private File rootDir = null;
    private String indexRoot = null;

+    private static final String DEFAULT_ANALYZER_CLASS_NAME = 
"org.apache.lucene.analysis.standard.StandardAnalyzer";
+    private static final String CONFIG_ANALYZER_CLASS_NAME = "analyzer";
+    private String analyzerClassName = null;
+
    /**
     * This is the early initialization method called by the
     * Turbine <code>Service</code> framework
@@ -192,7 +196,7 @@
        {
            try
            {
-                IndexWriter indexWriter = new IndexWriter(rootDir, new 
StandardAnalyzer(), true);
+                IndexWriter indexWriter = new IndexWriter(rootDir, 
newAnalyzer(), true);
                indexWriter.close();
                indexWriter = null;
                logger.info("Created Lucene Index in " + 
rootDir.getPath());
@@ -204,6 +208,9 @@
            }
        }

+        // Get analyze class name
+        analyzerClassName = 
serviceConf.getString(CONFIG_ANALYZER_CLASS_NAME, 
DEFAULT_ANALYZER_CLASS_NAME);
+
        //Mark that we are done
        setInit(true);
    }
@@ -231,7 +238,7 @@
            return null;
        }

-        Analyzer analyzer = new StandardAnalyzer();
+        Analyzer analyzer = newAnalyzer();
        String[] searchFields = {ParsedObject.FIELDNAME_CONTENT, 
ParsedObject.FIELDNAME_DESCRIPTION, ParsedObject.FIELDNAME_FIELDS,
                           ParsedObject.FIELDNAME_KEY, 
ParsedObject.FIELDNAME_KEYWORDS, ParsedObject.FIELDNAME_LANGUAGE,
@@ -407,7 +414,7 @@
        IndexWriter indexWriter;
        try
        {
-            indexWriter = new IndexWriter(rootDir, new StandardAnalyzer(), 
false);
+            indexWriter = new IndexWriter(rootDir, newAnalyzer(), false);
        }
        catch (IOException e)
        {
@@ -620,7 +627,7 @@

            indexReader.close();
-            IndexWriter indexWriter = new IndexWriter(rootDir, new 
StandardAnalyzer(), false);
+            IndexWriter indexWriter = new IndexWriter(rootDir, 
newAnalyzer(), false);
            indexWriter.optimize();
            indexWriter.close();

@@ -683,4 +690,25 @@
        return false;
    }
+
+    private Analyzer newAnalyzer() {
+        Analyzer rval = null;
+
+        try {
+            Class analyzerClass = Class.forName(analyzerClassName);
+            rval = (Analyzer) analyzerClass.newInstance();
+        } catch(InstantiationException e) {
+            logger.error("InstantiationException", e);
+        } catch(ClassNotFoundException e) {
+            logger.error("ClassNotFoundException", e);
+        } catch(IllegalAccessException e) {
+            logger.error("IllegalAccessException", e);
+        }
+
+        if(rval == null) {
+            rval = new StandardAnalyzer();
+        }
+
+        return rval;
+    }
}

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