| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.rya.streams.kafka.topology; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.List; |
| |
| import org.apache.rya.api.domain.VarNameUtils; |
| import org.apache.rya.api.function.projection.RandomUUIDFactory; |
| import org.apache.rya.streams.kafka.topology.TopologyFactory.ProcessorEntry; |
| import org.eclipse.rdf4j.model.ValueFactory; |
| import org.eclipse.rdf4j.model.impl.SimpleValueFactory; |
| import org.eclipse.rdf4j.query.algebra.Join; |
| import org.eclipse.rdf4j.query.algebra.Projection; |
| import org.eclipse.rdf4j.query.algebra.StatementPattern; |
| import org.eclipse.rdf4j.query.algebra.Var; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| /** |
| * Unit tests the methods of {@link TopologyFactory}. |
| */ |
| public class TopologyFactoryTest { |
| private static TopologyFactory FACTORY; |
| |
| private static final ValueFactory VF = SimpleValueFactory.getInstance(); |
| private static final Var TALKS_TO = VarNameUtils.createUniqueConstVar(VF.createIRI("urn:talksTo")); |
| private static final Var CHEWS = VarNameUtils.createUniqueConstVar(VF.createIRI("urn:chews")); |
| |
| static { |
| TALKS_TO.setAnonymous(true); |
| TALKS_TO.setConstant(true); |
| CHEWS.setAnonymous(true); |
| CHEWS.setConstant(true); |
| } |
| |
| @Before |
| public void setup() { |
| FACTORY = new TopologyFactory(); |
| } |
| |
| @Test |
| public void projectionStatementPattern() throws Exception { |
| final String query = "SELECT * WHERE { " |
| + "?person <urn:talksTo> ?otherPerson . " |
| + "}"; |
| |
| FACTORY.build(query, "source", "sink", new RandomUUIDFactory()); |
| final List<ProcessorEntry> entries = FACTORY.getProcessorEntry(); |
| |
| assertTrue(entries.get(0).getNode() instanceof Projection); |
| assertTrue(entries.get(1).getNode() instanceof StatementPattern); |
| |
| final StatementPattern expected = new StatementPattern(new Var("person"), TALKS_TO, new Var("otherPerson")); |
| assertEquals(expected, entries.get(1).getNode()); |
| } |
| |
| @Test |
| public void projectionJoinStatementPattern() throws Exception { |
| final String query = "SELECT * WHERE { " |
| + "?person <urn:talksTo> ?otherPerson . " |
| + "?otherPerson <urn:talksTo> ?dog . " |
| + "}"; |
| |
| FACTORY.build(query, "source", "sink", new RandomUUIDFactory()); |
| final List<ProcessorEntry> entries = FACTORY.getProcessorEntry(); |
| |
| assertTrue(entries.get(0).getNode() instanceof Projection); |
| assertTrue(entries.get(1).getNode() instanceof Join); |
| StatementPattern expected = new StatementPattern(new Var("person"), TALKS_TO, new Var("otherPerson")); |
| assertEquals(expected, entries.get(2).getNode()); |
| expected = new StatementPattern(new Var("otherPerson"), TALKS_TO, new Var("dog")); |
| assertEquals(expected, entries.get(3).getNode()); |
| } |
| |
| @Test |
| public void projectionJoinJoinStatementPattern() throws Exception { |
| final String query = "SELECT * WHERE { " |
| + "?person <urn:talksTo> ?otherPerson . " |
| + "?otherPerson <urn:talksTo> ?dog . " |
| + "?dog <urn:chews> ?toy . " |
| + "}"; |
| |
| FACTORY.build(query, "source", "sink", new RandomUUIDFactory()); |
| final List<ProcessorEntry> entries = FACTORY.getProcessorEntry(); |
| |
| assertTrue(entries.get(0).getNode() instanceof Projection); |
| assertTrue(entries.get(1).getNode() instanceof Join); |
| assertTrue(entries.get(2).getNode() instanceof Join); |
| StatementPattern expected = new StatementPattern(new Var("person"), TALKS_TO, new Var("otherPerson")); |
| assertEquals(expected, entries.get(3).getNode()); |
| expected = new StatementPattern(new Var("otherPerson"), TALKS_TO, new Var("dog")); |
| assertEquals(expected, entries.get(4).getNode()); |
| expected = new StatementPattern(new Var("dog"), CHEWS, new Var("toy")); |
| assertEquals(expected, entries.get(5).getNode()); |
| } |
| |
| @Test |
| public void projectionStatementPattern_rebind() throws Exception { |
| final String query = "CONSTRUCT { ?person <urn:mightKnow> ?otherPerson } WHERE { " |
| + "?person <urn:talksTo> ?otherPerson . " |
| + "}"; |
| |
| FACTORY.build(query, "source", "sink", new RandomUUIDFactory()); |
| final List<ProcessorEntry> entries = FACTORY.getProcessorEntry(); |
| |
| assertTrue(entries.get(0).getNode() instanceof Projection); |
| final StatementPattern expected = new StatementPattern(new Var("person"), TALKS_TO, new Var("otherPerson")); |
| assertEquals(expected, entries.get(1).getNode()); |
| } |
| } |