001/*
002 *  Copyright 2016 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.plugins.userdirectory.observation;
017
018import org.apache.avalon.framework.service.ServiceException;
019import org.apache.avalon.framework.service.ServiceManager;
020
021import org.ametys.cms.ObservationConstants;
022import org.ametys.cms.repository.Content;
023import org.ametys.core.observation.Event;
024import org.ametys.web.cache.pageelement.PageElementCache;
025import org.ametys.web.repository.page.Page;
026
027/**
028 * Invalidates the ZoneItem containing a Content which has just been modified or synchronized.
029 */
030public class InvalidateZoneItemCacheOnUserContentModificationObserver extends AbstractUserObserver
031{
032    private PageElementCache _zoneItemCache;
033
034    @Override
035    public void service(ServiceManager manager) throws ServiceException
036    {
037        super.service(manager);
038        _zoneItemCache = (PageElementCache) manager.lookup(PageElementCache.ROLE + "/zoneItem");
039    }
040    
041    @Override
042    public boolean supports(Event event)
043    {
044        return event.getId().equals(ObservationConstants.EVENT_CONTENT_MODIFIED)
045                || event.getId().equals(org.ametys.plugins.contentio.synchronize.observation.ObservationConstants.EVENT_CONTENT_SYNCHRONIZED);
046    }
047
048    public int getPriority(Event event)
049    {
050        // processed just before front-office cache invalidation
051        return MAX_PRIORITY + 3500;
052    }
053
054    @Override
055    protected void _internalObserve(Event event, Page rootUsersPage, Content userContent)
056    {
057        _zoneItemCache.removeItem("default", rootUsersPage.getSiteName(), "CONTENT", userContent.getId());
058    }
059
060}