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.api; 017 018import java.util.stream.Collector; 019 020import com.hp.hpl.jena.rdf.model.ModelFactory; 021import com.hp.hpl.jena.graph.Triple; 022import com.hp.hpl.jena.rdf.model.Model; 023 024/** 025 * A class of Collectors for use with RdfStreams 026 * @author acoburn 027 * @since Dec 4, 2015 028 */ 029public class RdfCollectors { 030 031 /** 032 * @return a Collector for use with aggregating an RdfStream into a Model. 033 */ 034 public static Collector<Triple, ?, Model> toModel() { 035 return Collector.of(ModelFactory::createDefaultModel, 036 (m, t) -> m.add(m.asStatement(t)), 037 (left, right) -> { left.add(right); return left; }, 038 Collector.Characteristics.UNORDERED); 039 } 040 041 private RdfCollectors() { 042 // prevent instantiation 043 } 044} 045