001/* 002 * Licensed to DuraSpace under one or more contributor license agreements. 003 * See the NOTICE file distributed with this work for additional information 004 * regarding copyright ownership. 005 * 006 * DuraSpace licenses this file to you under the Apache License, 007 * Version 2.0 (the "License"); you may not use this file except in 008 * compliance with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.fcrepo.kernel.modeshape; 019 020import static org.fcrepo.kernel.modeshape.utils.FedoraTypesUtils.isNonRdfSourceDescription; 021import static org.modeshape.jcr.api.JcrConstants.JCR_CONTENT; 022import static org.slf4j.LoggerFactory.getLogger; 023 024import javax.jcr.Node; 025import javax.jcr.RepositoryException; 026 027import org.fcrepo.kernel.api.exception.RepositoryRuntimeException; 028import org.fcrepo.kernel.api.models.FedoraResource; 029import org.fcrepo.kernel.api.models.NonRdfSourceDescription; 030import org.slf4j.Logger; 031 032import java.util.Calendar; 033 034/** 035 * Abstraction for a Fedora datastream backed by a JCR node. 036 * 037 * @author ajs6f 038 * @since Feb 21, 2013 039 */ 040public class NonRdfSourceDescriptionImpl extends FedoraResourceImpl implements NonRdfSourceDescription { 041 042 private static final Logger LOGGER = getLogger(NonRdfSourceDescriptionImpl.class); 043 044 /** 045 * The JCR node for this datastream 046 * 047 * @param n an existing {@link Node} 048 */ 049 public NonRdfSourceDescriptionImpl(final Node n) { 050 super(n); 051 } 052 053 @Override 054 public FedoraResource getDescribedResource() { 055 return new FedoraBinaryImpl(getContentNode()); 056 } 057 058 @Override 059 public FedoraResource getBaseVersion() { 060 try { 061 return new NonRdfSourceDescriptionImpl(getVersionManager().getBaseVersion(getPath()).getFrozenNode()); 062 } catch (final RepositoryException e) { 063 throw new RepositoryRuntimeException(e); 064 } 065 } 066 067 private Node getContentNode() { 068 LOGGER.trace("Retrieved datastream content node."); 069 try { 070 return node.getNode(JCR_CONTENT); 071 } catch (final RepositoryException e) { 072 throw new RepositoryRuntimeException(e); 073 } 074 } 075 076 /** 077 * Check if the node has a fedora:datastream mixin 078 * 079 * @param node node to check 080 * @return whether the node has a fedora:datastream mixin 081 */ 082 public static boolean hasMixin(final Node node) { 083 return isNonRdfSourceDescription.test(node); 084 } 085 086 /** 087 * Overrides the superclass to propagate updates to certain properties to the binary if explicitly set. 088 */ 089 public void touch(final boolean includeMembershipResource, final Calendar createdDate, final String createdUser, 090 final Calendar modifiedDate, final String modifyingUser) throws RepositoryException { 091 super.touch(includeMembershipResource, createdDate, createdUser, modifiedDate, modifyingUser); 092 if (createdDate != null || createdUser != null || modifiedDate != null || modifyingUser != null) { 093 ((FedoraBinaryImpl) getDescribedResource()).touch(false, createdDate, createdUser, 094 modifiedDate, modifyingUser); 095 } 096 } 097 098}