001/*
002 *  Copyright 2017 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.odfweb.observation.solr;
017
018import java.util.Map;
019
020import org.apache.avalon.framework.service.ServiceException;
021import org.apache.avalon.framework.service.ServiceManager;
022import org.apache.commons.lang3.ArrayUtils;
023
024import org.ametys.cms.ObservationConstants;
025import org.ametys.cms.content.indexing.solr.observation.ObserverHelper;
026import org.ametys.core.observation.Event;
027import org.ametys.core.observation.Observer;
028import org.ametys.odf.ProgramItem;
029import org.ametys.odf.orgunit.OrgUnit;
030import org.ametys.plugins.odfweb.repository.OdfPageHandler;
031import org.ametys.plugins.odfweb.restrictions.OdfProgramRestrictionManager;
032import org.ametys.web.indexing.observation.AbstractSolrObserver;
033import org.ametys.web.repository.page.Page;
034import org.ametys.web.repository.site.Site;
035import org.ametys.web.repository.site.SiteManager;
036import org.ametys.web.repository.sitemap.Sitemap;
037import org.ametys.web.site.SiteConfigurationExtensionPoint;
038
039/**
040 * {@link Observer} for observing orgunit modifications
041 * in order to synchronize Solr index.
042 */
043public abstract class AbstractSolrOrgUnitObserver extends AbstractSolrObserver
044{
045    /** The site manager. */
046    protected SiteManager _siteManager;
047    /** The site configuration. */
048    protected SiteConfigurationExtensionPoint _siteConf;
049    /** The ODF page handler. */
050    protected OdfPageHandler _odfPageHandler;
051    /** Odf program restriction manager */
052    protected OdfProgramRestrictionManager _odfProgramRestrictionManager;
053    
054    @Override
055    public void service(ServiceManager serviceManager) throws ServiceException
056    {
057        super.service(serviceManager);
058        _siteManager = (SiteManager) serviceManager.lookup(SiteManager.ROLE);
059        _odfPageHandler = (OdfPageHandler) serviceManager.lookup(OdfPageHandler.ROLE);
060        _siteConf = (SiteConfigurationExtensionPoint) serviceManager.lookup(SiteConfigurationExtensionPoint.ROLE);
061        _odfProgramRestrictionManager = (OdfProgramRestrictionManager) serviceManager.lookup(OdfProgramRestrictionManager.ROLE);
062    }
063    
064    @Override
065    public boolean supports(Event event)
066    {
067        return event.getArguments().get(ObservationConstants.ARGS_CONTENT) instanceof OrgUnit && ArrayUtils.contains(_supportedEventIds(), event.getId());
068    }
069    
070    /**
071     * Gets the supported event ids for this Observer to look for the {@link OrgUnit}s
072     * @return the supported event ids for this Observer
073     */
074    protected abstract String[] _supportedEventIds();
075
076    @Override
077    public void observe(Event event, Map<String, Object> transientVars) throws Exception
078    {
079        if (ObserverHelper.isNotSuspendedObservationForIndexation())
080        {
081            for (Site site : _siteManager.getSites())
082            {
083                String siteName = site.getName();
084                if (_odfPageHandler.hasOdfRootPage(site))
085                {
086                    for (Sitemap sitemap : site.getSitemaps())
087                    {
088                        for (Page odfRootPage : _odfPageHandler.getOdfRootPages(siteName, sitemap.getSitemapName()))
089                        {
090                            if (_odfProgramRestrictionManager.hasOrgunitRestrictions(odfRootPage)
091                                || ProgramItem.ORG_UNITS_REFERENCES.equals(_odfPageHandler.getLevel1Metadata(odfRootPage))
092                                || ProgramItem.ORG_UNITS_REFERENCES.equals(_odfPageHandler.getLevel2Metadata(odfRootPage)))
093                            {
094                                _updateIndex(odfRootPage);
095                            }
096                        }
097                    }
098                }
099            }
100        }
101    }
102
103    /**
104     * Update the index from the observed event. 
105     * @param odfRootPage the odf root page
106     * @throws Exception if an error occurs.
107     */
108    protected abstract void _updateIndex(Page odfRootPage) throws Exception;
109}