org.sakaiproject.search.journal.impl.MonitoredIndexWriter.java Source code

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Here is the source code for org.sakaiproject.search.journal.impl.MonitoredIndexWriter.java

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/**********************************************************************************
 * $URL: https://source.sakaiproject.org/svn/search/trunk/search-impl/impl/src/java/org/sakaiproject/search/journal/impl/MonitoredIndexWriter.java $
 * $Id: MonitoredIndexWriter.java 105078 2012-02-24 23:00:38Z ottenhoff@longsight.com $
 ***********************************************************************************
 *
 * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008 The Sakai Foundation
 *
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.opensource.org/licenses/ECL-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 **********************************************************************************/

package org.sakaiproject.search.journal.impl;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.store.Directory;
import org.sakaiproject.search.journal.api.IndexMonitorListener;

/**
 * An index writer where you can monitor the close operations
 * 
 * @author ieb
 */
public class MonitoredIndexWriter extends IndexWriter {

    private List<IndexMonitorListener> indexMonitorListeners = new ArrayList<IndexMonitorListener>();

    /**
     * @param arg0
     * @param arg1
     * @param arg2
     * @throws IOException
     */
    public MonitoredIndexWriter(String arg0, Analyzer arg1, boolean arg2) throws IOException {
        super(arg0, arg1, arg2);
    }

    /**
     * @param arg0
     * @param arg1
     * @param arg2
     * @throws IOException
     */
    public MonitoredIndexWriter(File arg0, Analyzer arg1, boolean arg2) throws IOException {
        super(arg0, arg1, arg2);
    }

    /**
     * @param arg0
     * @param arg1
     * @param arg2
     * @throws IOException
     */
    public MonitoredIndexWriter(Directory arg0, Analyzer arg1, boolean arg2) throws IOException {
        super(arg0, arg1, arg2);
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.apache.lucene.index.IndexWriter#close()
     */
    @Override
    public synchronized void close() throws IOException {
        super.close();
        fireIndexClosed();
    }

    /**
     * 
     */
    private void fireIndexClosed() {
        for (Iterator<IndexMonitorListener> itl = indexMonitorListeners.iterator(); itl.hasNext();) {
            IndexMonitorListener tl = itl.next();
            tl.doIndexMonitorClose(this);
        }
    }

    /**
     * @return
     */
    private List<IndexMonitorListener> getMonitorIndexListeners() {
        return indexMonitorListeners;
    }

    public void addMonitorIndexListener(IndexMonitorListener indexListener) {
        List<IndexMonitorListener> tl = new ArrayList<IndexMonitorListener>();
        tl.addAll(this.indexMonitorListeners);
        tl.add(indexListener);
        this.indexMonitorListeners = tl;
    }

    public void setMonitorIndexListener(List<IndexMonitorListener> indexListeners) {
        List<IndexMonitorListener> tl = new ArrayList<IndexMonitorListener>();
        tl.addAll(indexListeners);
        this.indexMonitorListeners = tl;
    }

}