| /* |
| * 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.geode.cache.query.internal; |
| |
| import static org.assertj.core.api.Assertions.assertThatThrownBy; |
| import static org.mockito.ArgumentMatchers.anyLong; |
| import static org.mockito.ArgumentMatchers.isA; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.when; |
| |
| import java.util.concurrent.ArrayBlockingQueue; |
| import java.util.concurrent.ScheduledThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mockito.ArgumentCaptor; |
| import org.mockito.Mockito; |
| |
| import org.apache.geode.cache.query.QueryExecutionLowMemoryException; |
| import org.apache.geode.cache.query.QueryExecutionTimeoutException; |
| import org.apache.geode.internal.cache.InternalCache; |
| |
| /** |
| * although max_execution_time is set as 10ms, the monitor thread can sleep more than the specified |
| * time, so query will be cancelled at un-deterministic time after 10ms. We cannot assert on |
| * specific time at which the query will be cancelled. We can only assert that the query will be |
| * cancelled at one point after 10ms. |
| */ |
| public class QueryMonitorTest { |
| |
| private QueryMonitor monitor; |
| private long max_execution_time = 5; |
| private ScheduledThreadPoolExecutor scheduledThreadPoolExecutor; |
| private ArgumentCaptor<Runnable> captor; |
| |
| @Before |
| public void setUp() { |
| scheduledThreadPoolExecutor = mock(ScheduledThreadPoolExecutor.class); |
| when(scheduledThreadPoolExecutor.getQueue()).thenReturn(new ArrayBlockingQueue<>(1)); |
| monitor = new QueryMonitor(scheduledThreadPoolExecutor, mock(InternalCache.class), |
| max_execution_time); |
| captor = ArgumentCaptor.forClass(Runnable.class); |
| } |
| |
| @After |
| public void afterClass() { |
| /* |
| * If the query cancelation task is run, it will set the isCanceled |
| * thread local on the query to true. |
| * |
| * We need to clean up that state between tests because they can run on this same thread. |
| * In production, this cleanup is done in DefaultQuery after the query executes. |
| */ |
| ExecutionContext.isCanceled.get().set(false); |
| monitor.setLowMemory(false, 100); |
| } |
| |
| @Test |
| public void monitorQueryThreadCqQueryIsNotMonitored() { |
| final ExecutionContext executionContext = mock(ExecutionContext.class); |
| when(executionContext.isCqQueryContext()).thenReturn(true); |
| monitor.monitorQueryExecution(executionContext); |
| |
| // Verify that the expiration task was not scheduled for the CQ executionContext |
| Mockito.verify(scheduledThreadPoolExecutor, never()).schedule(captor.capture(), anyLong(), |
| isA(TimeUnit.class)); |
| } |
| |
| @Test |
| public void monitorQueryThreadLowMemoryExceptionThrown() { |
| final ExecutionContext executionContext = mock(ExecutionContext.class); |
| monitor.setLowMemory(true, 100); |
| |
| assertThatThrownBy(() -> monitor.monitorQueryExecution(executionContext)) |
| .isExactlyInstanceOf(QueryExecutionLowMemoryException.class); |
| } |
| |
| @Test |
| public void monitorQueryThreadExpirationTaskScheduled() { |
| final ExecutionContext executionContext = mock(ExecutionContext.class); |
| |
| monitor.monitorQueryExecution(executionContext); |
| Mockito.verify(scheduledThreadPoolExecutor, times(1)).schedule(captor.capture(), anyLong(), |
| isA(TimeUnit.class)); |
| captor.getValue().run(); |
| |
| Mockito.verify(executionContext, times(1)) |
| .setQueryCanceledException(isA(QueryExecutionTimeoutException.class)); |
| assertThatThrownBy(QueryMonitor::throwExceptionIfQueryOnCurrentThreadIsCanceled) |
| .isExactlyInstanceOf(QueryExecutionCanceledException.class); |
| } |
| |
| @Test |
| public void setLowMemoryTrueThenFalseAllowsSubsequentMonitoring() { |
| monitor.setLowMemory(true, 1); |
| monitor.setLowMemory(false, 1); |
| /* |
| * Verify we can still monitor and expire a query after |
| * cancelling all queries due to low memory. |
| */ |
| monitorQueryThreadExpirationTaskScheduled(); |
| } |
| } |