001/*
002 *  Copyright 2019 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.inputdata;
017
018import java.util.Arrays;
019import java.util.List;
020import java.util.Map;
021
022import org.apache.avalon.framework.service.ServiceException;
023import org.apache.avalon.framework.service.ServiceManager;
024import org.apache.avalon.framework.service.Serviceable;
025
026import org.ametys.core.observation.Event;
027import org.ametys.core.observation.Observer;
028import org.ametys.runtime.plugin.component.AbstractLogEnabled;
029import org.ametys.web.ObservationConstants;
030import org.ametys.web.WebHelper;
031import org.ametys.web.repository.site.Site;
032import org.ametys.web.repository.site.SiteManager;
033
034/**
035 * Invalidates the {@link SitemapSaxer}'s cache used by the {@link SitemapInputData}.
036 */
037public class InvalidateSitemapSaxerCacheObserver extends AbstractLogEnabled implements Observer, Serviceable
038{
039    private SiteManager _siteManager;
040    private SitemapSaxer _sitemapSaxer;
041    private List<String> _defaultWorkspaceEvents = Arrays.asList(ObservationConstants.EVENT_PAGE_ADDED,
042                                                                ObservationConstants.EVENT_PAGE_CHANGED,
043                                                                ObservationConstants.EVENT_PAGE_DELETED,
044                                                                ObservationConstants.EVENT_PAGE_MOVED,
045                                                                ObservationConstants.EVENT_PAGE_RENAMED,
046                                                                ObservationConstants.EVENT_PAGE_UPDATED,
047                                                                org.ametys.core.ObservationConstants.EVENT_ACL_UPDATED);
048    private List<String> _liveWorkspaceEvents = Arrays.asList(org.ametys.cms.ObservationConstants.EVENT_CONTENT_ADDED,
049                                                                org.ametys.cms.ObservationConstants.EVENT_CONTENT_VALIDATED,
050                                                                org.ametys.cms.ObservationConstants.EVENT_CONTENT_DELETED,
051                                                                org.ametys.cms.ObservationConstants.EVENT_CONTENT_UNTAG_LIVE,
052                                                                ObservationConstants.EVENT_ZONEITEM_ADDED,
053                                                                ObservationConstants.EVENT_ZONEITEM_DELETED,
054                                                                ObservationConstants.EVENT_ZONEITEM_MODIFIED);
055    
056    public void service(ServiceManager manager) throws ServiceException
057    {
058        _siteManager = (SiteManager) manager.lookup(SiteManager.ROLE);
059        _sitemapSaxer = (SitemapSaxer) manager.lookup(SitemapSaxer.ROLE);
060    }
061    
062    public int getPriority()
063    {
064        // Will be processed after Solr update
065        return Observer.MAX_PRIORITY + 4000;
066    }
067
068    public boolean supports(Event event)
069    {
070        return _defaultWorkspaceEvents.contains(event.getId())
071                || _liveWorkspaceEvents.contains(event.getId());
072    }
073
074    public void observe(Event event, Map<String, Object> transientVars) throws Exception
075    {
076        boolean defaultWorkspace = _defaultWorkspaceEvents.contains(event.getId());
077        boolean liveWorkspace = defaultWorkspace || _liveWorkspaceEvents.contains(event.getId());
078                
079        Site site = WebHelper.findSite(event);
080
081        if (site != null)
082        {
083            _clearCache(site, defaultWorkspace, liveWorkspace);
084        }
085        else
086        {
087            for (Site s : _siteManager.getSites())
088            {
089                _clearCache(s, defaultWorkspace, liveWorkspace);
090            }
091        }
092    }
093    
094    private void _clearCache(Site site, boolean defaultWorkspace, boolean liveWorkspace)
095    {
096        if (defaultWorkspace)
097        {
098            _clearCache("default", site);
099        }
100        
101        if (liveWorkspace)
102        {
103            _clearCache("live", site);
104        }
105    }
106    
107    private void _clearCache(String workspace, Site site)
108    {
109        getLogger().info("Clearing SitemapSaxer cache for site {} and workspace {}.", site.getName(), workspace);
110        _sitemapSaxer.clearCache(site.getName(), workspace);
111    }
112}