/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.spi.impl.operationexecutor.impl;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastSerialClassRunner;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.TimeUnit;
import static com.hazelcast.spi.Operation.GENERIC_PARTITION_ID;
import static com.hazelcast.spi.properties.GroupProperty.GENERIC_OPERATION_THREAD_COUNT;
import static com.hazelcast.spi.properties.GroupProperty.PARTITION_COUNT;
import static com.hazelcast.spi.properties.GroupProperty.PARTITION_OPERATION_THREAD_COUNT;
import static com.hazelcast.spi.properties.GroupProperty.PRIORITY_GENERIC_OPERATION_THREAD_COUNT;
import static org.junit.Assert.assertEquals;
@RunWith(HazelcastSerialClassRunner.class)
@Category(QuickTest.class)
public class OperationExecutorImpl_BasicTest extends OperationExecutorImpl_AbstractTest {
@Test
public void testConstruction() {
initExecutor();
assertEquals(props.getInteger(PARTITION_COUNT), executor.getPartitionOperationRunners().length);
assertEquals(executor.getGenericThreadCount(), executor.getGenericOperationRunners().length);
assertEquals(props.getInteger(PARTITION_OPERATION_THREAD_COUNT),
executor.getPartitionThreadCount());
assertEquals(props.getInteger(GENERIC_OPERATION_THREAD_COUNT) + props.getInteger(PRIORITY_GENERIC_OPERATION_THREAD_COUNT),
executor.getGenericThreadCount());
}
@Test
public void test_getRunningOperationCount() {
initExecutor();
executor.execute(new DummyOperation(GENERIC_PARTITION_ID).durationMs(2000));
executor.execute(new DummyOperation(GENERIC_PARTITION_ID).durationMs(2000));
executor.execute(new DummyOperation(0).durationMs(2000));
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
int runningOperationCount = executor.getRunningOperationCount();
System.out.println("runningOperationCount:" + runningOperationCount);
assertEquals(3, runningOperationCount);
}
});
}
@Test
public void test_getQueueSize() {
config.setProperty(PRIORITY_GENERIC_OPERATION_THREAD_COUNT.getName(), "0");
initExecutor();
// first we need to set the threads to work so the queues are going to be left alone.
for (int k = 0; k < executor.getGenericThreadCount(); k++) {
executor.execute(new DummyOperation(GENERIC_PARTITION_ID).durationMs(2000));
}
for (int k = 0; k < executor.getPartitionThreadCount(); k++) {
executor.execute(new DummyOperation(k).durationMs(2000));
}
// now we throw in some work in the queues that wont' be picked up
int count = 0;
for (int l = 0; l < 3; l++) {
for (int k = 0; k < executor.getGenericThreadCount(); k++) {
executor.execute(new DummyOperation(GENERIC_PARTITION_ID).durationMs(2000));
count++;
}
}
for (int l = 0; l < 5; l++) {
for (int k = 0; k < executor.getPartitionThreadCount(); k++) {
executor.execute(new DummyOperation(k).durationMs(2000));
count++;
}
}
final int expectedCount = count;
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(expectedCount, executor.getQueueSize());
}
});
}
@Test(expected = NullPointerException.class)
public void test_runOnAllPartitionThreads_whenTaskNull() {
initExecutor();
executor.executeOnPartitionThreads(null);
}
@Test
public void test_runOnAllPartitionThreads() throws Exception {
initExecutor();
int threadCount = executor.getPartitionThreadCount();
final CyclicBarrier barrier = new CyclicBarrier(threadCount + 1);
executor.executeOnPartitionThreads(new Runnable() {
@Override
public void run() {
// current thread must be a PartitionOperationThread
if (Thread.currentThread() instanceof PartitionOperationThread) {
try {
awaitBarrier(barrier);
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
awaitBarrier(barrier);
}
@Test
public void test_interruptAllPartitionThreads() throws Exception {
initExecutor();
int threadCount = executor.getPartitionThreadCount();
final CyclicBarrier barrier = new CyclicBarrier(threadCount + 1);
executor.executeOnPartitionThreads(new Runnable() {
@Override
public void run() {
// current thread must be a PartitionOperationThread
if (Thread.currentThread() instanceof PartitionOperationThread) {
try {
Thread.sleep(Long.MAX_VALUE);
} catch (InterruptedException ignored) {
} finally {
try {
awaitBarrier(barrier);
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
}
});
executor.interruptPartitionThreads();
awaitBarrier(barrier);
}
@Test
public void genericPriorityTaskIsPickedUpEvenWhenAllGenericThreadsBusy() {
initExecutor();
// lets keep the regular generic threads busy
for (int k = 0; k < executor.getGenericThreadCount() * 10; k++) {
executor.execute(new DummyOperation(GENERIC_PARTITION_ID).durationMs(20000000));
}
final CountDownLatch open = new CountDownLatch(1);
// then we schedule a priority task
executor.execute(new UrgentDummyOperation(GENERIC_PARTITION_ID) {
public void run() {
open.countDown();
}
});
// and verify it completes.
assertOpenEventually(open);
}
private static void awaitBarrier(CyclicBarrier barrier) throws Exception {
barrier.await(ASSERT_TRUE_EVENTUALLY_TIMEOUT, TimeUnit.SECONDS);
}
}