Java tutorial
/** * Licensed to the Sakai Foundation (SF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The SF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. */ package org.sakaiproject.nakamura.calendar.search; import static org.sakaiproject.nakamura.api.calendar.CalendarConstants.SAKAI_CALENDAR_EVENT_RT; import static org.sakaiproject.nakamura.api.calendar.CalendarConstants.SAKAI_CALENDAR_PROFILE_LINK; import static org.sakaiproject.nakamura.api.calendar.CalendarConstants.SAKAI_CALENDAR_PROPERTY_PREFIX; import static org.sakaiproject.nakamura.api.calendar.CalendarConstants.SAKAI_CALENDAR_RT; import static org.sakaiproject.nakamura.api.calendar.CalendarConstants.SAKAI_EVENT_SIGNUP_PARTICIPANT_RT; import static org.sakaiproject.nakamura.api.calendar.CalendarConstants.SIGNUP_NODE_RT; import com.google.common.collect.ImmutableList; import com.google.common.collect.Lists; import com.google.common.collect.Sets; import org.apache.commons.lang.StringUtils; import org.apache.felix.scr.annotations.Activate; import org.apache.felix.scr.annotations.Component; import org.apache.felix.scr.annotations.Deactivate; import org.apache.felix.scr.annotations.Reference; import org.apache.sling.api.SlingConstants; import org.apache.solr.client.solrj.util.ClientUtils; import org.apache.solr.common.SolrInputDocument; import org.osgi.service.event.Event; import org.sakaiproject.nakamura.api.lite.Session; import org.sakaiproject.nakamura.api.lite.StorageClientException; import org.sakaiproject.nakamura.api.lite.accesscontrol.AccessDeniedException; import org.sakaiproject.nakamura.api.lite.authorizable.Authorizable; import org.sakaiproject.nakamura.api.lite.content.Content; import org.sakaiproject.nakamura.api.lite.content.ContentManager; import org.sakaiproject.nakamura.api.solr.IndexingHandler; import org.sakaiproject.nakamura.api.solr.RepositorySession; import org.sakaiproject.nakamura.api.solr.ResourceIndexingService; import org.sakaiproject.nakamura.util.ISO8601Date; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.util.Collection; import java.util.Collections; import java.util.List; import java.util.Map; import java.util.Set; /** * */ @Component(immediate = true) public class CalendarIndexingHandler implements IndexingHandler { private static final Logger logger = LoggerFactory.getLogger(CalendarIndexingHandler.class); @Reference(target = "(type=sparse)") private ResourceIndexingService resourceIndexingService; private static final Set<String> RESOURCE_TYPES = Sets.newHashSet(SAKAI_CALENDAR_RT, SAKAI_CALENDAR_EVENT_RT, SIGNUP_NODE_RT, SAKAI_EVENT_SIGNUP_PARTICIPANT_RT); @Activate protected void activate(Map<?, ?> props) { for (String type : RESOURCE_TYPES) { resourceIndexingService.addHandler(type, this); } } @Deactivate protected void deactivate(Map<?, ?> props) { for (String type : RESOURCE_TYPES) { resourceIndexingService.removeHandler(type, this); } } /** * {@inheritDoc} * * @see org.sakaiproject.nakamura.api.solr.IndexingHandler#getDocuments(org.sakaiproject.nakamura.api.solr.RepositorySession, * org.osgi.service.event.Event) */ public Collection<SolrInputDocument> getDocuments(RepositorySession repositorySession, Event event) { String path = (String) event.getProperty(FIELD_PATH); List<SolrInputDocument> documents = Lists.newArrayList(); if (!StringUtils.isBlank(path)) { try { Session session = repositorySession.adaptTo(Session.class); ContentManager cm = session.getContentManager(); Content content = cm.get(path); if (content != null) { SolrInputDocument doc = null; String resourceType = (String) content.getProperty(SlingConstants.PROPERTY_RESOURCE_TYPE); if (SAKAI_EVENT_SIGNUP_PARTICIPANT_RT.equals(resourceType)) { doc = new SolrInputDocument(); // the default fields are good for the other resource types. // SAKAI_EVENT_SIGNUP_PARTICIPANT_RT needs to flatten out the data to search // on the profile of the user that signed up. Object value = content.getProperty(SAKAI_CALENDAR_PROFILE_LINK); if (value != null) { doc.addField(Authorizable.NAME_FIELD, value); } doc.addField(_DOC_SOURCE_OBJECT, content); } else if (content.hasProperty(SAKAI_CALENDAR_PROPERTY_PREFIX + "DTSTART")) { doc = new SolrInputDocument(); Object value = content.getProperty(SAKAI_CALENDAR_PROPERTY_PREFIX + "DTSTART"); if (value != null) { try { ISO8601Date d = new ISO8601Date(String.valueOf(value)); String dateString = d.toString(); doc.addField("vcal-DTSTART", dateString); } catch (IllegalArgumentException e) { LoggerFactory.getLogger(this.getClass()).warn("Invalid Date object: {}", e.getMessage(), e); } } doc.addField(_DOC_SOURCE_OBJECT, content); } if (doc != null) { documents.add(doc); } } } catch (StorageClientException e) { logger.warn(e.getMessage(), e); } catch (AccessDeniedException e) { logger.warn(e.getMessage(), e); } } logger.debug("Got documents {} ", documents); return documents; } /** * {@inheritDoc} * * @see org.sakaiproject.nakamura.api.solr.IndexingHandler#getDeleteQueries(org.sakaiproject.nakamura.api.solr.RepositorySession, * org.osgi.service.event.Event) */ public Collection<String> getDeleteQueries(RepositorySession repositorySession, Event event) { List<String> retval = Collections.emptyList(); logger.debug("GetDelete for {} ", event); String path = (String) event.getProperty(FIELD_PATH); String resourceType = (String) event.getProperty("resourceType"); if (RESOURCE_TYPES.contains(resourceType)) { retval = ImmutableList.of("id:" + ClientUtils.escapeQueryChars(path)); } return retval; } }