001/*
002 *  Copyright 2018 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.frontoffice.search.instance;
017
018import java.util.Map;
019
020import org.apache.avalon.framework.service.ServiceException;
021import org.apache.avalon.framework.service.ServiceManager;
022import org.apache.avalon.framework.service.Serviceable;
023
024import org.ametys.core.observation.Event;
025import org.ametys.core.observation.Observer;
026import org.ametys.runtime.plugin.component.AbstractLogEnabled;
027import org.ametys.web.ObservationConstants;
028
029/**
030 * Observer to remove if needed a {@link SearchServiceInstance} in the {@link SearchServiceInstanceManager}.
031 */
032public class RemoveSearchServiceInstanceObserver extends AbstractLogEnabled implements Observer, Serviceable
033{
034    private SearchServiceInstanceManager _searchServiceInstanceManager;
035
036    @Override
037    public void service(ServiceManager manager) throws ServiceException
038    {
039        _searchServiceInstanceManager = (SearchServiceInstanceManager) manager.lookup(SearchServiceInstanceManager.ROLE);
040    }
041
042    @Override
043    public boolean supports(Event event)
044    {
045        String eventId = event.getId();
046        return ObservationConstants.EVENT_ZONEITEM_DELETED.equals(eventId) 
047                || ObservationConstants.EVENT_SERVICE_MODIFIED.equals(eventId);
048    }
049
050    @Override
051    public int getPriority(Event event)
052    {
053        return Observer.MIN_PRIORITY;
054    }
055
056    @Override
057    public void observe(Event event, Map<String, Object> transientVars) throws Exception
058    {
059        String zoneItemId = (String) event.getArguments().get(ObservationConstants.ARGS_ZONE_ITEM_ID);
060        _searchServiceInstanceManager.remove(zoneItemId);
061    }
062}