001/*
002 *  Copyright 2010 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.web.indexing.observation;
017
018import java.util.Map;
019
020import org.ametys.core.observation.Event;
021import org.ametys.core.observation.Observer;
022import org.ametys.web.ObservationConstants;
023import org.ametys.web.repository.page.Page;
024
025/**
026 * {@link Observer} for observing page move in order to synchronize
027 * Solr index associated.
028 */
029public class SolrPageMovePart1Observer extends AbstractLiveSolrObserver
030{
031    @Override
032    public boolean supports(Event event)
033    {
034        return event.getId().equals(ObservationConstants.EVENT_PAGE_MOVED);
035    }
036    
037    @Override
038    public int getPriority(Event event)
039    {
040        // Will be processed BEFORE live synchronization observers, since pages have to be present in live to be unindexed
041        return MAX_PRIORITY + 500;
042    }
043    
044    @Override
045    protected void _updateIndex(Event event, Map<String, Object> transientVars) throws Exception
046    {
047        Page page = (Page) event.getArguments().get(ObservationConstants.ARGS_PAGE);
048        String oldPathInSitemap = (String) event.getArguments().get("page.old.path");
049        String newPathInSitemap = (String) event.getArguments().get(ObservationConstants.ARGS_PAGE_PATH);
050        
051        // If parent has not changed, no need to reindex anything
052        if (!oldPathInSitemap.equals(newPathInSitemap))
053        {
054            // page was in live, it will be removed by the synchronization observers
055            // we need to unindex it
056            _solrPageIndexer.unindexPage(page.getId(), true, false);
057        }
058    }
059}