| /** |
| * 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.querymanager.kafka; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.UUID; |
| |
| import org.apache.kafka.clients.consumer.Consumer; |
| import org.apache.kafka.clients.producer.Producer; |
| import org.apache.kafka.common.serialization.StringDeserializer; |
| import org.apache.kafka.common.serialization.StringSerializer; |
| import org.apache.rya.api.model.VisibilityBindingSet; |
| import org.apache.rya.api.model.VisibilityStatement; |
| import org.apache.rya.streams.api.entity.StreamsQuery; |
| import org.apache.rya.streams.api.interactor.LoadStatements; |
| import org.apache.rya.streams.kafka.KafkaStreamsFactory; |
| import org.apache.rya.streams.kafka.KafkaTopics; |
| import org.apache.rya.streams.kafka.SingleThreadKafkaStreamsFactory; |
| import org.apache.rya.streams.kafka.interactor.KafkaLoadStatements; |
| import org.apache.rya.streams.kafka.serialization.VisibilityBindingSetDeserializer; |
| import org.apache.rya.streams.kafka.serialization.VisibilityStatementSerializer; |
| import org.apache.rya.streams.querymanager.QueryExecutor; |
| import org.apache.rya.test.kafka.KafkaTestInstanceRule; |
| import org.apache.rya.test.kafka.KafkaTestUtil; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.openrdf.model.ValueFactory; |
| import org.openrdf.model.impl.ValueFactoryImpl; |
| import org.openrdf.query.impl.MapBindingSet; |
| |
| import com.google.common.collect.Lists; |
| |
| /** |
| * Integration tests the methods of {@link LocalQueryExecutor}. |
| */ |
| public class LocalQueryExecutorIT { |
| |
| private final String ryaInstance = UUID.randomUUID().toString(); |
| |
| private Producer<String, VisibilityStatement> stmtProducer = null; |
| private Consumer<String, VisibilityBindingSet> resultConsumer = null; |
| |
| @Rule |
| public KafkaTestInstanceRule kafka = new KafkaTestInstanceRule(false); |
| |
| @Before |
| public void setup() { |
| // Make sure the topic that the change log uses exists. |
| final String changeLogTopic = KafkaTopics.queryChangeLogTopic("" + ryaInstance); |
| kafka.createTopic(changeLogTopic); |
| |
| // Initialize the Statements Producer and the Results Consumer. |
| stmtProducer = KafkaTestUtil.makeProducer(kafka, StringSerializer.class, VisibilityStatementSerializer.class); |
| resultConsumer = KafkaTestUtil.fromStartConsumer(kafka, StringDeserializer.class, VisibilityBindingSetDeserializer.class); |
| } |
| |
| @After |
| public void cleanup() throws Exception { |
| stmtProducer.close(); |
| resultConsumer.close(); |
| } |
| |
| @Test |
| public void runQuery() throws Exception { |
| // Test values. |
| final String ryaInstance = "rya"; |
| final StreamsQuery sQuery = new StreamsQuery(UUID.randomUUID(), "SELECT * WHERE { ?person <urn:worksAt> ?business . }", true); |
| |
| // Create the statements that will be loaded. |
| final ValueFactory vf = new ValueFactoryImpl(); |
| final List<VisibilityStatement> statements = new ArrayList<>(); |
| statements.add(new VisibilityStatement(vf.createStatement( |
| vf.createURI("urn:Alice"), |
| vf.createURI("urn:worksAt"), |
| vf.createURI("urn:BurgerJoint")), "a")); |
| statements.add(new VisibilityStatement(vf.createStatement( |
| vf.createURI("urn:Bob"), |
| vf.createURI("urn:worksAt"), |
| vf.createURI("urn:TacoShop")), "a")); |
| statements.add(new VisibilityStatement(vf.createStatement( |
| vf.createURI("urn:Charlie"), |
| vf.createURI("urn:worksAt"), |
| vf.createURI("urn:TacoShop")), "a")); |
| |
| // Create the expected results. |
| final List<VisibilityBindingSet> expected = new ArrayList<>(); |
| MapBindingSet bs = new MapBindingSet(); |
| bs.addBinding("person", vf.createURI("urn:Alice")); |
| bs.addBinding("business", vf.createURI("urn:BurgerJoint")); |
| expected.add(new VisibilityBindingSet(bs, "a")); |
| bs = new MapBindingSet(); |
| bs.addBinding("person", vf.createURI("urn:Bob")); |
| bs.addBinding("business", vf.createURI("urn:TacoShop")); |
| expected.add(new VisibilityBindingSet(bs, "a")); |
| bs = new MapBindingSet(); |
| bs.addBinding("person", vf.createURI("urn:Charlie")); |
| bs.addBinding("business", vf.createURI("urn:TacoShop")); |
| expected.add(new VisibilityBindingSet(bs, "a")); |
| |
| // Start the executor that will be tested. |
| final String kafkaServers = kafka.getKafkaHostname() + ":" + kafka.getKafkaPort(); |
| final KafkaStreamsFactory jobFactory = new SingleThreadKafkaStreamsFactory(kafkaServers); |
| final QueryExecutor executor = new LocalQueryExecutor(jobFactory); |
| executor.startAndWait(); |
| try { |
| // Start the query. |
| executor.startQuery(ryaInstance, sQuery); |
| |
| // Wait for the program to start. |
| Thread.sleep(5000); |
| |
| // Write some statements to the program. |
| final String statementsTopic = KafkaTopics.statementsTopic(ryaInstance); |
| final LoadStatements loadStatements = new KafkaLoadStatements(statementsTopic, stmtProducer); |
| loadStatements.fromCollection(statements); |
| |
| // Read the output of the streams program. |
| final String resultsTopic = KafkaTopics.queryResultsTopic(sQuery.getQueryId()); |
| resultConsumer.subscribe( Lists.newArrayList(resultsTopic) ); |
| final List<VisibilityBindingSet> results = KafkaTestUtil.pollForResults(500, 6, 3, resultConsumer); |
| assertEquals(expected, results); |
| |
| } finally { |
| executor.stopAndWait(); |
| } |
| } |
| } |