| /* |
| * 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.internal.monitoring.executor; |
| |
| import static org.apache.geode.test.awaitility.GeodeAwaitility.await; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.assertj.core.api.Assertions; |
| import org.junit.Test; |
| |
| import org.apache.geode.test.awaitility.GeodeAwaitility; |
| |
| /** |
| * Contains simple tests for the {@link AbstractExecutor}. |
| * |
| * |
| * @since Geode 1.5 |
| */ |
| public class AbstractExecutorGroupJUnitTest { |
| |
| private final AbstractExecutor abstractExecutorGroup = |
| new FunctionExecutionPooledExecutorGroup(); |
| |
| private static final long timeoutInMilliseconds = GeodeAwaitility.getTimeout().toMillis(); |
| |
| @Test |
| public void testInitializationValues() { |
| assertTrue(abstractExecutorGroup.getStartTime() <= System.currentTimeMillis()); |
| assertTrue(abstractExecutorGroup.getNumIterationsStuck() == 0); |
| assertTrue(abstractExecutorGroup.getThreadID() == Thread.currentThread().getId()); |
| } |
| |
| @Test |
| public void testWorkFlow() { |
| abstractExecutorGroup.handleExpiry(12); |
| assertTrue(abstractExecutorGroup.getNumIterationsStuck() == 1); |
| } |
| |
| /** |
| * If a thread is blocked by another thread we want to see the other thread's |
| * stack in a "stuck thread" report. This test creates such a thread and |
| * generates a "stuck thread" report to make sure the report on the other thread |
| * is included. |
| */ |
| @Test |
| public void lockOwnerThreadStackIsReported() throws InterruptedException { |
| final Object syncObject = new Object(); |
| final Object releaseObject = new Object(); |
| final boolean[] blockingThreadWaiting = new boolean[1]; |
| final boolean[] blockedThreadWaiting = new boolean[1]; |
| Thread blockingThread = new Thread("blocking thread") { |
| public void run() { |
| synchronized (syncObject) { |
| synchronized (releaseObject) { |
| try { |
| blockingThreadWaiting[0] = true; |
| releaseObject.wait(timeoutInMilliseconds); |
| } catch (InterruptedException e) { |
| return; |
| } |
| } |
| } |
| } |
| }; |
| Thread blockedThread = new Thread("blocked thread") { |
| public void run() { |
| blockedThreadWaiting[0] = true; |
| synchronized (syncObject) { |
| try { |
| syncObject.wait(timeoutInMilliseconds); |
| } catch (InterruptedException e) { |
| return; |
| } |
| } |
| } |
| }; |
| blockingThread.start(); |
| await().until(() -> blockingThreadWaiting[0]); |
| blockedThread.start(); |
| await().until(() -> blockedThreadWaiting[0]); |
| try { |
| AbstractExecutor executor = new AbstractExecutor("testGroup", blockedThread.getId()) { |
| @Override |
| public void handleExpiry(long stuckTime) { |
| // no-op |
| } |
| }; |
| await().untilAsserted(() -> { |
| String threadReport = executor.createThreadReport(60000); |
| Assertions.assertThat(threadReport).contains(AbstractExecutor.LOCK_OWNER_THREAD_STACK); |
| }); |
| } finally { |
| blockingThread.interrupt(); |
| blockedThread.interrupt(); |
| blockingThread.join(timeoutInMilliseconds); |
| blockedThread.join(timeoutInMilliseconds); |
| } |
| } |
| } |