/**********************************************************************************
 * $URL: https://source.sakaiproject.org/svn/search/tags/sakai_2-3-1/search-impl/impl/src/java/org/sakaiproject/search/index/impl/SearchAnalyzerFactory.java $
 * $Id: SearchAnalyzerFactory.java 10080 2006-05-30 05:24:18Z ian@caret.cam.ac.uk $
 ***********************************************************************************
 *
 * Copyright (c) 2003, 2004, 2005, 2006 The Sakai Foundation.
 *
 * Licensed under the Educational Community License, Version 1.0 (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/ecl1.php
 *
 * 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.index.impl;

import java.util.Map;

import org.apache.lucene.analysis.Analyzer;
import org.sakaiproject.search.index.AnalyzerFactory;

/**
 * A Factory to generate search analyzers based on a configurable type setting.
 * The type of analyzer produced is selected by setting the analyzerFactory name that will 
 * select one of the same name ijected into the currentAnalyzers Map.
 * @author ieb
 *
 */
public class SearchAnalyzerFactory implements AnalyzerFactory
{
	private AnalyzerFactory runningAnalyzerFactory = null;
	private Map currentAnalyzers = null;
	private AnalyzerFactory defaultAnalyzerFactory;
	private String analyzerFactoryName;

	public void init() {
		runningAnalyzerFactory = (AnalyzerFactory)currentAnalyzers.get(analyzerFactoryName);
		if ( runningAnalyzerFactory == null ) {
			runningAnalyzerFactory = defaultAnalyzerFactory;
		}
	}

	public Analyzer newAnalyzer()
	{
		return defaultAnalyzerFactory.newAnalyzer();
	}

	/**
	 * @return Returns the analyzerFactoryName.
	 */
	public String getAnalyzerFactoryName()
	{
		return analyzerFactoryName;
	}

	/**
	 * @param analyzerFactoryName The analyzerFactoryName to set.
	 */
	public void setAnalyzerFactoryName(String analyzerFactoryName)
	{
		this.analyzerFactoryName = analyzerFactoryName;
	}

	/**
	 * @return Returns the currentAnalyzers.
	 */
	public Map getCurrentAnalyzers()
	{
		return currentAnalyzers;
	}

	/**
	 * @param currentAnalyzers The currentAnalyzers to set.
	 */
	public void setCurrentAnalyzers(Map currentAnalyzers)
	{
		this.currentAnalyzers = currentAnalyzers;
	}

	/**
	 * @return Returns the defaultAnalyzerFactory.
	 */
	public AnalyzerFactory getDefaultAnalyzerFactory()
	{
		return defaultAnalyzerFactory;
	}

	/**
	 * @param defaultAnalyzerFactory The defaultAnalyzerFactory to set.
	 */
	public void setDefaultAnalyzerFactory(AnalyzerFactory defaultAnalyzerFactory)
	{
		this.defaultAnalyzerFactory = defaultAnalyzerFactory;
	}

	/**
	 * @return Returns the runningAnalyzerFactory.
	 */
	public AnalyzerFactory getRunningAnalyzerFactory()
	{
		return runningAnalyzerFactory;
	}

	/**
	 * @param runningAnalyzerFactory The runningAnalyzerFactory to set.
	 */
	public void setRunningAnalyzerFactory(AnalyzerFactory runningAnalyzerFactory)
	{
		this.runningAnalyzerFactory = runningAnalyzerFactory;
	}

}
