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.impl.rdf.impl; 017 018import static com.hp.hpl.jena.graph.Triple.create; 019import static org.fcrepo.kernel.RdfLexicon.DESCRIBES; 020import static org.fcrepo.kernel.RdfLexicon.DESCRIBED_BY; 021 022import org.fcrepo.kernel.models.NonRdfSourceDescription; 023import org.fcrepo.kernel.models.FedoraBinary; 024import org.fcrepo.kernel.models.FedoraResource; 025import org.fcrepo.kernel.identifiers.IdentifierConverter; 026 027import com.hp.hpl.jena.graph.Node; 028import com.hp.hpl.jena.rdf.model.Resource; 029 030/** 031 * @author cabeer 032 * @since 10/16/14 033 */ 034public class ContentRdfContext extends NodeRdfContext { 035 /** 036 * Default constructor. 037 * 038 * @param resource the resource 039 * @param idTranslator the idTranslator 040 */ 041 public ContentRdfContext(final FedoraResource resource, 042 final IdentifierConverter<Resource, FedoraResource> idTranslator) { 043 super(resource, idTranslator); 044 045 // if there's an accessible jcr:content node, include information about 046 // it 047 if (resource instanceof NonRdfSourceDescription) { 048 final FedoraResource contentNode = ((NonRdfSourceDescription) resource()).getDescribedResource(); 049 final Node subject = translator().reverse().convert(resource()).asNode(); 050 final Node contentSubject = translator().reverse().convert(contentNode).asNode(); 051 // add triples representing parent-to-content-child relationship 052 concat(create(subject, DESCRIBES.asNode(), contentSubject)); 053 054 } else if (resource instanceof FedoraBinary) { 055 final FedoraResource description = ((FedoraBinary) resource).getDescription(); 056 concat(create(translator().reverse().convert(resource).asNode(), 057 DESCRIBED_BY.asNode(), 058 translator().reverse().convert(description).asNode())); 059 } 060 } 061}