001/** 002 * Copyright 2015 DuraSpace, Inc. 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.fcrepo.kernel.modeshape.observer; 017 018import java.util.function.Function; 019 020import org.fcrepo.kernel.api.observer.FedoraEvent; 021 022import org.slf4j.Logger; 023 024import javax.jcr.NamespaceRegistry; 025import javax.jcr.RepositoryException; 026import javax.jcr.Session; 027 028import static com.hp.hpl.jena.rdf.model.ResourceFactory.createProperty; 029import static org.fcrepo.kernel.api.RdfLexicon.jcrProperties; 030import static org.fcrepo.kernel.modeshape.utils.NamespaceTools.getNamespaceRegistry; 031import static org.fcrepo.kernel.api.RdfLexicon.REPOSITORY_NAMESPACE; 032import static org.slf4j.LoggerFactory.getLogger; 033 034/** 035 * @author Andrew Woods 036 * @author ajs6f 037 * @since 11/22/14 038 */ 039public class GetNamespacedProperties implements Function<FedoraEvent, FedoraEvent> { 040 041 private static final Logger LOGGER = getLogger(SimpleObserver.class); 042 043 private final Session session; 044 045 /** 046 * Constructor 047 * 048 * @param session used to get NamespaceRegistry 049 */ 050 public GetNamespacedProperties(final Session session) { 051 this.session = session; 052 } 053 054 @Override 055 public FedoraEvent apply(final FedoraEvent evt) { 056 final NamespaceRegistry namespaceRegistry = getNamespaceRegistry(session); 057 058 final FedoraEvent event = new FedoraEventImpl(evt); 059 for (final String property : evt.getProperties()) { 060 final String[] parts = property.split(":", 2); 061 if (parts.length == 2) { 062 final String prefix = parts[0]; 063 if ("jcr".equals(prefix)) { 064 if (jcrProperties.contains(createProperty(REPOSITORY_NAMESPACE + parts[1]))) { 065 event.addProperty(REPOSITORY_NAMESPACE + parts[1]); 066 } else { 067 LOGGER.debug("Swallowing jcr property: {}", property); 068 } 069 } else { 070 try { 071 event.addProperty(namespaceRegistry.getURI(prefix) + parts[1]); 072 } catch (final RepositoryException ex) { 073 LOGGER.debug("Prefix could not be dereferenced using the namespace registry: {}", property); 074 event.addProperty(property); 075 } 076 } 077 } else { 078 event.addProperty(property); 079 } 080 } 081 evt.getTypes().forEach(event::addType); 082 return event; 083 } 084 085}