| /** |
| * 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; |
| |
| import static org.mockito.Matchers.any; |
| import static org.mockito.Matchers.eq; |
| import static org.mockito.Mockito.doAnswer; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import java.util.UUID; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.rya.streams.api.entity.StreamsQuery; |
| import org.apache.rya.streams.api.queries.InMemoryQueryChangeLog; |
| import org.apache.rya.streams.api.queries.QueryChange; |
| import org.apache.rya.streams.api.queries.QueryChangeLog; |
| import org.apache.rya.streams.querymanager.QueryChangeLogSource.SourceListener; |
| import org.junit.Test; |
| |
| /** |
| * Unit tests the methods of {@link QueryManager}. |
| */ |
| public class QueryManagerTest { |
| |
| /** |
| * Tests when the query manager is notified to create a new query, the query |
| * is created and started. |
| */ |
| @Test |
| public void testCreateQuery() throws Exception { |
| //The new QueryChangeLog |
| final QueryChangeLog newChangeLog = new InMemoryQueryChangeLog(); |
| final String ryaInstance = "ryaTestInstance"; |
| final StreamsQuery query = new StreamsQuery(UUID.randomUUID(), "some query", true); |
| |
| // when the query executor is told to start the test query on the test |
| // rya instance, count down on the countdown latch |
| final QueryExecutor qe = mock(QueryExecutor.class); |
| when(qe.isRunning()).thenReturn(true); |
| |
| final CountDownLatch queryStarted = new CountDownLatch(1); |
| doAnswer(invocation -> { |
| queryStarted.countDown(); |
| return null; |
| }).when(qe).startQuery(eq(ryaInstance), eq(query)); |
| final QueryChangeLogSource source = mock(QueryChangeLogSource.class); |
| |
| //When the QueryChangeLogSource is subscribed to in the QueryManager, mock notify of a new QueryChangeLog |
| doAnswer(invocation -> { |
| //The listener created by the Query Manager |
| final SourceListener listener = (SourceListener) invocation.getArguments()[0]; |
| listener.notifyCreate(ryaInstance, newChangeLog); |
| newChangeLog.write(QueryChange.create(query.getQueryId(), query.getSparql(), query.isActive())); |
| return null; |
| }).when(source).subscribe(any(SourceListener.class)); |
| |
| final QueryManager qm = new QueryManager(qe, source, 50, TimeUnit.MILLISECONDS); |
| try { |
| qm.startAndWait(); |
| queryStarted.await(5, TimeUnit.SECONDS); |
| verify(qe).startQuery(ryaInstance, query); |
| } finally { |
| qm.stopAndWait(); |
| } |
| } |
| |
| /** |
| * Tests when the query manager is notified to delete a new query, the query |
| * is stopped and deleted. |
| */ |
| @Test |
| public void testDeleteQuery() throws Exception { |
| //The new QueryChangeLog |
| final QueryChangeLog newChangeLog = new InMemoryQueryChangeLog(); |
| final StreamsQuery query = new StreamsQuery(UUID.randomUUID(), "some query", true); |
| final String ryaInstance = "ryaTestInstance"; |
| |
| // when the query executor is told to start the test query on the test |
| // rya instance, count down on the countdown latch |
| final QueryExecutor qe = mock(QueryExecutor.class); |
| when(qe.isRunning()).thenReturn(true); |
| |
| final CountDownLatch queryStarted = new CountDownLatch(1); |
| final CountDownLatch queryDeleted = new CountDownLatch(1); |
| doAnswer(invocation -> { |
| queryDeleted.countDown(); |
| return null; |
| }).when(qe).stopQuery(query.getQueryId()); |
| final QueryChangeLogSource source = mock(QueryChangeLogSource.class); |
| |
| // when the query executor is told to start the test query on the test |
| // rya instance, count down on the countdown latch |
| doAnswer(invocation -> { |
| queryStarted.countDown(); |
| return null; |
| }).when(qe).startQuery(eq(ryaInstance), eq(query)); |
| |
| //When the QueryChangeLogSource is subscribed to in the QueryManager, mock notify of a new QueryChangeLog |
| // add the query, so it can be removed |
| doAnswer(invocation -> { |
| //The listener created by the Query Manager |
| final SourceListener listener = (SourceListener) invocation.getArguments()[0]; |
| listener.notifyCreate(ryaInstance, newChangeLog); |
| Thread.sleep(1000); |
| newChangeLog.write(QueryChange.create(query.getQueryId(), query.getSparql(), query.isActive())); |
| queryStarted.await(5, TimeUnit.SECONDS); |
| newChangeLog.write(QueryChange.delete(query.getQueryId())); |
| return null; |
| }).when(source).subscribe(any(SourceListener.class)); |
| |
| final QueryManager qm = new QueryManager(qe, source, 50, TimeUnit.MILLISECONDS); |
| try { |
| qm.startAndWait(); |
| queryDeleted.await(5, TimeUnit.SECONDS); |
| verify(qe).stopQuery(query.getQueryId()); |
| } finally { |
| qm.stopAndWait(); |
| } |
| } |
| |
| /** |
| * Tests when the query manager is notified to update an existing query, the |
| * query is stopped. |
| */ |
| @Test |
| public void testUpdateQuery() throws Exception { |
| // The new QueryChangeLog |
| final QueryChangeLog newChangeLog = new InMemoryQueryChangeLog(); |
| final StreamsQuery query = new StreamsQuery(UUID.randomUUID(), "some query", true); |
| final String ryaInstance = "ryaTestInstance"; |
| |
| // when the query executor is told to start the test query on the test |
| // rya instance, count down on the countdown latch |
| final QueryExecutor qe = mock(QueryExecutor.class); |
| when(qe.isRunning()).thenReturn(true); |
| |
| final CountDownLatch queryStarted = new CountDownLatch(1); |
| final CountDownLatch queryDeleted = new CountDownLatch(1); |
| doAnswer(invocation -> { |
| queryDeleted.countDown(); |
| return null; |
| }).when(qe).stopQuery(query.getQueryId()); |
| final QueryChangeLogSource source = mock(QueryChangeLogSource.class); |
| |
| // when the query executor is told to start the test query on the test |
| // rya instance, count down on the countdown latch |
| doAnswer(invocation -> { |
| queryStarted.countDown(); |
| return null; |
| }).when(qe).startQuery(eq(ryaInstance), eq(query)); |
| |
| // When the QueryChangeLogSource is subscribed to in the QueryManager, |
| // mock notify of a new QueryChangeLog |
| // add the query, so it can be removed |
| doAnswer(invocation -> { |
| // The listener created by the Query Manager |
| final SourceListener listener = (SourceListener) invocation.getArguments()[0]; |
| listener.notifyCreate(ryaInstance, newChangeLog); |
| Thread.sleep(1000); |
| newChangeLog.write(QueryChange.create(query.getQueryId(), query.getSparql(), query.isActive())); |
| queryStarted.await(5, TimeUnit.SECONDS); |
| newChangeLog.write(QueryChange.update(query.getQueryId(), false)); |
| return null; |
| }).when(source).subscribe(any(SourceListener.class)); |
| |
| final QueryManager qm = new QueryManager(qe, source, 50, TimeUnit.MILLISECONDS); |
| try { |
| qm.startAndWait(); |
| queryDeleted.await(10, TimeUnit.SECONDS); |
| verify(qe).stopQuery(query.getQueryId()); |
| } finally { |
| qm.stopAndWait(); |
| } |
| } |
| } |