deletes content from the index...

haven't quite figured out where to plug this in to
producers.xml, the same code also
needs to go in module=content&do=delete in order to
be really thorough

diff --git a/source/mircoders/producer/UnIndexingProducerNode.java b/source/mircoders/producer/UnIndexingProducerNode.java
new file mode 100755 (executable)
index 0000000..60b21b2
--- /dev/null
+++ b/source/mircoders/producer/UnIndexingProducerNode.java
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2001, 2002  The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with the com.oreilly.servlet library, any library
+ * licensed under the Apache Software License, The Sun (tm) Java Advanced
+ * Imaging library (JAI), The Sun JIMI library (or with modified versions of
+ * the above that use the same license as the above), and distribute linked
+ * combinations including the two.  You must obey the GNU General Public
+ * License in all respects for all of the code used other than the above
+ * mentioned libraries.  If you modify this file, you may extend this exception
+ * to your version of the file, but you are not obligated to do so.  If you do
+ * not wish to do so, delete this exception statement from your version.
+ */
+
+package mircoders.producer;
+
+import java.util.*;
+import java.io.*;
+
+
+import org.apache.lucene.index.*;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.store.FSDirectory;
+
+import freemarker.template.*;
+
+
+import mir.util.*;
+import mir.log.*;
+import mir.producer.*;
+//import mir.generator.*;
+import mircoders.global.*;
+import mircoders.localizer.*;
+import mir.entity.*;
+import mir.entity.adapter.*;
+import mircoders.entity.*;
+import mircoders.storage.*;
+import mircoders.search.*;
+
+
+public class UnIndexingProducerNode implements ProducerNode {
+  private String contentKey;
+  private String indexPath;
+
+
+  public UnIndexingProducerNode(String aContentKey, String pathToIndex) {
+    contentKey = aContentKey;
+    indexPath=pathToIndex;
+  }
+
+  public void produce(Map aValueMap, String aVerb, LoggerWrapper aLogger) throws ProducerFailure {
+    IndexReader indexReader = null;
+    Object data;
+    Entity entity;
+
+    long startTime;
+    long endTime;
+
+    startTime = System.currentTimeMillis();
+
+    try {
+      data = ParameterExpander.findValueForKey( aValueMap, contentKey );
+
+      if (! (data instanceof EntityAdapter)) {
+        throw new ProducerFailure("UnIndexingProducerNode: value of '"+contentKey+"' is not an EntityAdapter, but an " + data.getClass().getName(), null);
+      }
+
+      entity = ((EntityAdapter) data).getEntity();
+      if (! (entity instanceof EntityContent)) {
+        throw new ProducerFailure("UnIndexingProducerNode: value of '"+contentKey+"' is not a content EntityAdapter, but a " + entity.getClass().getName() + " adapter", null);
+      }
+      aLogger.info("UnIndexing " + (String) entity.getValue("id") + " out of " + indexPath);
+
+      indexReader = IndexReader.open(indexPath);
+      indexReader.delete(new Term("id",entity.getValue("id")));
+      indexReader.close();
+      
+    }
+    catch (Throwable t) {
+      aLogger.error("Error while unindexing content: " + t.getMessage());
+      t.printStackTrace(new PrintWriter(new LoggerToWriterAdapter(aLogger, LoggerWrapper.DEBUG_MESSAGE)));
+    }
+    finally {
+      if (indexReader != null){
+        try{
+          indexReader.close();
+        }
+        catch (Throwable t) {
+          aLogger.warn("Error while closing indexReader: " + t.getMessage());
+        }
+
+      }
+
+      try{
+        FSDirectory theIndexDir=FSDirectory.getDirectory(indexPath,false);
+        if (indexReader.isLocked(theIndexDir)){
+          indexReader.unlock(theIndexDir);
+        }
+      }
+      catch (Throwable t) {
+        aLogger.warn("Error while unlocking index: " + t.getMessage());
+      }
+    }
+
+
+
+
+    endTime = System.currentTimeMillis();
+
+    aLogger.info("  UnIndexTime: " + (endTime-startTime) + " ms<br>");
+  }
+}
+
+
+
+
+
+
+
+
+
+