InfoCourseNodeIndexer.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
*/

package org.olat.search.service.indexer.repository.course;

import java.io.IOException;
import java.util.List;

import org.apache.lucene.document.Document;
import org.olat.commons.info.manager.InfoMessageManager;
import org.olat.commons.info.model.InfoMessage;
import org.olat.core.id.OLATResourceable;
import org.olat.core.logging.OLog;
import org.olat.core.logging.Tracing;
import org.olat.core.util.resource.OresHelper;
import org.olat.course.ICourse;
import org.olat.course.nodes.CourseNode;
import org.olat.search.service.SearchResourceContext;
import org.olat.search.service.document.CourseNodeDocument;
import org.olat.search.service.document.InfoMessageDocument;
import org.olat.search.service.indexer.DefaultIndexer;
import org.olat.search.service.indexer.OlatFullIndexer;

/**
 * 
 * Description:<br>
 * 
 * <P>
 * Initial Date:  29 juil. 2010 <br>
 * @author srosse, stephane.rosse@frentix.com, http://www.frentix.com
 */
public class InfoCourseNodeIndexer extends DefaultIndexer  implements CourseNodeIndexer {
	private static final OLog log = Tracing.createLoggerFor(InfoCourseNodeIndexer.class);
	// Must correspond with LocalString_xx.properties
	// Do not use '_' because we want to seach for certain documenttype and lucene haev problems with '_' 
	public final static String TYPE = "type.course.node.info.message";

	private final static String SUPPORTED_TYPE_NAME = "org.olat.course.nodes.InfoCourseNode";
	
	private InfoMessageManager infoMessageManager;
	
	/**
	 * [used by Spring]
	 * @param infoMessageManager
	 */
	public void setInfoMessageManager(InfoMessageManager infoMessageManager) {
		this.infoMessageManager = infoMessageManager;
	}

	@Override
	public void doIndex(SearchResourceContext searchResourceContext, Object parentObject, OlatFullIndexer indexer)
	throws IOException, InterruptedException {
		//
	}

	@Override
	public void doIndex(SearchResourceContext repositoryResourceContext, ICourse course, CourseNode courseNode, OlatFullIndexer indexWriter) {
		try {
			SearchResourceContext courseNodeResourceContext = createSearchResourceContext(repositoryResourceContext, courseNode, TYPE);
			Document document = CourseNodeDocument.createDocument(courseNodeResourceContext, courseNode);
			indexWriter.addDocument(document);
			
			doIndexInfos(courseNodeResourceContext, course, courseNode, indexWriter);
		} catch(Exception ex) {
			log.error("Exception indexing courseNode=" + courseNode, ex);
		} catch (Error err) {
			log.error("Error indexing courseNode=" + courseNode, err);
		}
	}

	@Override
	public String getSupportedTypeName() {
		return SUPPORTED_TYPE_NAME;
	}
	
	private void doIndexInfos(SearchResourceContext parentResourceContext, ICourse course, CourseNode courseNode, OlatFullIndexer indexWriter)
	throws IOException, InterruptedException {
		List<InfoMessage> messages = infoMessageManager.loadInfoMessageByResource(course, courseNode.getIdent(), null, null, null, 0, -1);
		for(InfoMessage message : messages) {
			SearchResourceContext searchResourceContext = new SearchResourceContext(parentResourceContext);
			OLATResourceable ores = OresHelper.createOLATResourceableInstance(InfoMessage.class, message.getKey());
			searchResourceContext.setBusinessControlFor(ores);
			Document document = InfoMessageDocument.createDocument(searchResourceContext, message);
			indexWriter.addDocument(document);
		}
	}
}