| /* |
| * 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.interactor; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.UUID; |
| import java.util.concurrent.TimeUnit; |
| |
| 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.exception.RyaStreamsException; |
| import org.apache.rya.streams.api.interactor.LoadStatements; |
| import org.apache.rya.streams.api.interactor.RunQuery; |
| import org.apache.rya.streams.api.queries.InMemoryQueryChangeLog; |
| import org.apache.rya.streams.api.queries.InMemoryQueryRepository; |
| import org.apache.rya.streams.api.queries.QueryRepository; |
| import org.apache.rya.streams.kafka.KafkaTopics; |
| import org.apache.rya.streams.kafka.serialization.VisibilityBindingSetDeserializer; |
| import org.apache.rya.streams.kafka.serialization.VisibilityStatementSerializer; |
| import org.apache.rya.streams.kafka.topology.TopologyFactory; |
| 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; |
| import com.google.common.util.concurrent.AbstractScheduledService.Scheduler; |
| |
| /** |
| * Integration tests the methods of {@link KafkaRunQuery}. |
| */ |
| public class KafkaRunQueryIT { |
| |
| @Rule |
| public KafkaTestInstanceRule kafka = new KafkaTestInstanceRule(true); |
| |
| private Producer<String, VisibilityStatement> producer; |
| private Consumer<String, VisibilityBindingSet> consumer; |
| |
| @Before |
| public void setup() { |
| producer = KafkaTestUtil.makeProducer(kafka, StringSerializer.class, VisibilityStatementSerializer.class); |
| consumer = KafkaTestUtil.fromStartConsumer(kafka, StringDeserializer.class, VisibilityBindingSetDeserializer.class); |
| } |
| |
| @After |
| public void cleanup() { |
| producer.close(); |
| consumer.close(); |
| } |
| |
| @Test |
| public void runQuery() throws Exception { |
| // Setup some constant that will be used through the test. |
| final String ryaInstance = UUID.randomUUID().toString(); |
| final String statementsTopic = KafkaTopics.statementsTopic(ryaInstance); |
| |
| // This query is completely in memory, so it doesn't need to be closed. |
| final QueryRepository queries = new InMemoryQueryRepository( new InMemoryQueryChangeLog(), Scheduler.newFixedRateSchedule(0L, 5, TimeUnit.SECONDS) ); |
| |
| // Add the query to the query repository. |
| final StreamsQuery sQuery = queries.add("SELECT * WHERE { ?person <urn:worksAt> ?business . }", true); |
| final UUID queryId = sQuery.getQueryId(); |
| final String resultsTopic = KafkaTopics.queryResultsTopic(ryaInstance, queryId); |
| |
| // The thread that will run the tested interactor. |
| final Thread testThread = new Thread() { |
| @Override |
| public void run() { |
| final RunQuery runQuery = new KafkaRunQuery( |
| kafka.getKafkaHostname(), |
| kafka.getKafkaPort(), |
| statementsTopic, |
| resultsTopic, |
| queries, |
| new TopologyFactory()); |
| try { |
| runQuery.run(queryId); |
| } catch (final RyaStreamsException e) { |
| // Do nothing. Test will still fail because the expected results will be missing. |
| } |
| } |
| }; |
| |
| // Create the topics. |
| kafka.createTopic(statementsTopic); |
| kafka.createTopic(resultsTopic); |
| |
| // 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")); |
| |
| // Execute the test. This will result in a set of results that were read from the results topic. |
| final List<VisibilityBindingSet> results; |
| try { |
| // Wait for the program to start. |
| testThread.start(); |
| Thread.sleep(2000); |
| |
| // Write some statements to the program. |
| final LoadStatements loadStatements = new KafkaLoadStatements(statementsTopic, producer); |
| loadStatements.fromCollection(statements); |
| |
| // Read the output of the streams program. |
| consumer.subscribe( Lists.newArrayList(resultsTopic) ); |
| results = KafkaTestUtil.pollForResults(500, 6, 3, consumer); |
| } finally { |
| // Tear down the test. |
| testThread.interrupt(); |
| testThread.join(3000); |
| } |
| |
| // Show the read results matched the expected ones. |
| assertEquals(expected, results); |
| } |
| } |