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.api;
019
020import static java.util.Arrays.asList;
021import static org.apache.jena.graph.NodeFactory.createURI;
022import static org.junit.Assert.assertEquals;
023
024import java.util.List;
025
026import org.apache.jena.graph.Node;
027import org.apache.jena.graph.Triple;
028import org.apache.jena.rdf.model.Model;
029
030import org.junit.Test;
031
032/**
033 * @author acoburn
034 */
035public class RdfCollectorsTest {
036
037    @Test
038    public void streamToModel() {
039        final Node subject = createURI("subject");
040        final Node prop1 = createURI("prop1");
041        final Node prop2 = createURI("prop2");
042        final List<Triple> triples = asList(
043                new Triple(subject, prop1, createURI("obj1")),
044                new Triple(subject, prop1, createURI("obj2")),
045                new Triple(subject, prop1, createURI("obj3")),
046                new Triple(subject, prop2, createURI("obj1")),
047                new Triple(subject, prop2, createURI("obj2")),
048                new Triple(subject, prop2, createURI("obj3")));
049
050        final Model filtered = triples.stream().filter(x -> x.getPredicate().equals(prop1))
051                .collect(RdfCollectors.toModel());
052
053        assertEquals(3, filtered.size());
054    }
055}
056