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.rdf.impl;
017
018import com.hp.hpl.jena.rdf.model.Resource;
019import org.fcrepo.kernel.api.models.FedoraResource;
020import org.fcrepo.kernel.api.identifiers.IdentifierConverter;
021import org.slf4j.Logger;
022
023import javax.jcr.RepositoryException;
024
025import static java.util.stream.Stream.of;
026import static com.hp.hpl.jena.graph.Triple.create;
027import static org.fcrepo.kernel.api.RdfLexicon.HAS_PARENT;
028import static org.fcrepo.kernel.modeshape.FedoraJcrConstants.VERSIONABLE;
029import static org.slf4j.LoggerFactory.getLogger;
030
031/**
032 * @author cabeer
033 * @author ajs6f
034 * @since 9/16/14
035 */
036public class ParentRdfContext extends NodeRdfContext {
037
038    private static final Logger LOGGER = getLogger(ParentRdfContext.class);
039
040    /**
041     * Default constructor.
042     *
043     * @param resource the resource
044     * @param idTranslator the id translator
045     * @throws javax.jcr.RepositoryException if repository exception occurred
046     */
047    public ParentRdfContext(final FedoraResource resource,
048                            final IdentifierConverter<Resource, FedoraResource> idTranslator)
049            throws RepositoryException {
050        super(resource, idTranslator);
051
052        if (resource.getNode().getDepth() > 0) {
053            LOGGER.trace("Determined that this resource has a parent.");
054            // The parent node of a frozen node for a versionable resource is not a node we want to link to because it
055            // is in the jcr:system space
056            if (!resource().isFrozenResource() || !resource().getUnfrozenResource().hasType(VERSIONABLE)) {
057                concat(of(create(subject(), HAS_PARENT.asNode(), uriFor(resource().getContainer()))));
058            }
059        }
060    }
061}