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* 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
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* KIND, either express or implied. See the License for the
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package org.apache.brooklyn.core.test.qa.performance;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.api.mgmt.SubscriptionManager;
import org.apache.brooklyn.api.sensor.SensorEvent;
import org.apache.brooklyn.api.sensor.SensorEventListener;
import org.apache.brooklyn.core.test.entity.TestEntity;
import org.apache.brooklyn.test.performance.PerformanceTestDescriptor;
import org.apache.brooklyn.util.collections.MutableMap;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
public class SubscriptionPerformanceTest extends AbstractPerformanceTest {
private static final int NUM_ITERATIONS = 10000;
TestEntity entity;
List<TestEntity> entities;
SubscriptionManager subscriptionManager;
@BeforeMethod(alwaysRun=true)
public void setUp() throws Exception {
super.setUp();
entities = Lists.newArrayList();
for (int i = 0; i < 10; i++) {
entities.add(app.createAndManageChild(EntitySpec.create(TestEntity.class)));
}
entity = entities.get(0);
app.start(ImmutableList.of(loc));
subscriptionManager = app.getManagementContext().getSubscriptionManager();
}
@Test(groups={"Integration", "Acceptance"})
public void testManyPublishedOneSubscriber() throws Exception {
int numSubscribers = 1;
int numIterations = NUM_ITERATIONS;
double minRatePerSec = 100 * PERFORMANCE_EXPECTATION; // i.e. 100*10 events delivered per sec
final AtomicInteger iter = new AtomicInteger();
final int expectedCount = numIterations*numSubscribers;
final AtomicInteger listenerCount = new AtomicInteger();
final CountDownLatch completionLatch = new CountDownLatch(1);
for (int i = 0; i < numSubscribers; i++) {
subscriptionManager.subscribe(MutableMap.<String, Object>of("subscriber", i), entity, TestEntity.SEQUENCE, new SensorEventListener<Integer>() {
public void onEvent(SensorEvent<Integer> event) {
int count = listenerCount.incrementAndGet();
if (count >= expectedCount) completionLatch.countDown();
}});
}
measure(PerformanceTestDescriptor.create()
.summary("SubscriptionPerformanceTest.testManyPublishedOneSubscriber")
.iterations(numIterations)
.minAcceptablePerSecond(minRatePerSec)
.job(new Runnable() {
public void run() {
entity.sensors().set(TestEntity.SEQUENCE, (iter.getAndIncrement()));
}})
.completionLatch(completionLatch));
}
@Test(groups={"Integration", "Acceptance"})
public void testManyListenersForSensorEvent() throws Exception {
int numSubscribers = 10;
int numIterations = NUM_ITERATIONS;
double minRatePerSec = 100 * PERFORMANCE_EXPECTATION; // i.e. 100*10 events delivered per sec
final AtomicInteger iter = new AtomicInteger();
final int expectedCount = numIterations*numSubscribers;
final AtomicInteger listenerCount = new AtomicInteger();
final CountDownLatch completionLatch = new CountDownLatch(1);
for (int i = 0; i < numSubscribers; i++) {
subscriptionManager.subscribe(MutableMap.<String, Object>of("subscriber", i), entity, TestEntity.SEQUENCE, new SensorEventListener<Integer>() {
public void onEvent(SensorEvent<Integer> event) {
int count = listenerCount.incrementAndGet();
if (count >= expectedCount) completionLatch.countDown();
}});
}
measure(PerformanceTestDescriptor.create()
.summary("SubscriptionPerformanceTest.testManyListenersForSensorEvent")
.iterations(numIterations)
.minAcceptablePerSecond(minRatePerSec)
.job(new Runnable() {
@Override public void run() {
entity.sensors().set(TestEntity.SEQUENCE, (iter.getAndIncrement()));
}})
.completionLatch(completionLatch));
}
@Test(groups={"Integration", "Acceptance"})
public void testUpdateAttributeWithNoListenersButManyUnrelatedListeners() throws Exception {
int numUnrelatedSubscribers = 1000;
int numIterations = NUM_ITERATIONS;
double minRatePerSec = 1000 * PERFORMANCE_EXPECTATION;
final AtomicInteger iter = new AtomicInteger();
final AtomicReference<RuntimeException> exception = new AtomicReference<RuntimeException>();
for (int i = 0; i < (numUnrelatedSubscribers/2); i++) {
subscriptionManager.subscribe(MutableMap.<String, Object>of("subscriber", i), entities.get(1), TestEntity.SEQUENCE, new SensorEventListener<Integer>() {
public void onEvent(SensorEvent<Integer> event) {
exception.set(new RuntimeException("Unrelated subscriber called with "+event));
throw exception.get();
}});
subscriptionManager.subscribe(MutableMap.<String, Object>of("subscriber", i), entity, TestEntity.MY_NOTIF, new SensorEventListener<Integer>() {
public void onEvent(SensorEvent<Integer> event) {
exception.set(new RuntimeException("Unrelated subscriber called with "+event));
throw exception.get();
}});
}
measure(PerformanceTestDescriptor.create()
.summary("SubscriptionPerformanceTest.testUpdateAttributeWithNoListenersButManyUnrelatedListeners")
.iterations(numIterations)
.minAcceptablePerSecond(minRatePerSec)
.job(new Runnable() {
@Override public void run() {
entity.sensors().set(TestEntity.SEQUENCE, (iter.incrementAndGet()));
}}));
if (exception.get() != null) {
throw exception.get();
}
}
}