/*
* 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.topic.impl.reliable;
import com.hazelcast.config.Config;
import com.hazelcast.config.ReliableTopicConfig;
import com.hazelcast.config.RingbufferConfig;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.Member;
import com.hazelcast.core.Message;
import com.hazelcast.monitor.LocalTopicStats;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.util.Clock;
import org.junit.Before;
import org.junit.Test;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;
import static java.util.Arrays.asList;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
public abstract class ReliableTopicAbstractTest extends HazelcastTestSupport {
private static final int CAPACITY = 10;
private ReliableTopicProxy<String> topic;
private HazelcastInstance local;
@Before
public void setup() {
ReliableTopicConfig topicConfig = new ReliableTopicConfig("reliableTopic*");
RingbufferConfig ringbufferConfig = new RingbufferConfig(topicConfig.getName());
ringbufferConfig.setCapacity(CAPACITY);
Config config = new Config();
config.addReliableTopicConfig(topicConfig);
config.addRingBufferConfig(ringbufferConfig);
HazelcastInstance[] instances = newInstances(config);
local = instances[0];
HazelcastInstance target = instances[instances.length - 1];
String name = randomNameOwnedBy(target, "reliableTopic");
topic = (ReliableTopicProxy<String>) local.<String>getReliableTopic(name);
}
protected abstract HazelcastInstance[] newInstances(Config config);
// ============== addMessageListener ==============================
@Test(expected = NullPointerException.class)
public void addMessageListener_whenNull() {
topic.addMessageListener(null);
}
@Test
public void addMessageListener() {
String id = topic.addMessageListener(new ReliableMessageListenerMock());
assertNotNull(id);
}
// ============== removeMessageListener ==============================
@Test(expected = NullPointerException.class)
public void removeMessageListener_whenNull() {
topic.removeMessageListener(null);
}
@Test
public void removeMessageListener_whenExisting() {
final ReliableMessageListenerMock listener = new ReliableMessageListenerMock();
String id = topic.addMessageListener(listener);
boolean removed = topic.removeMessageListener(id);
assertTrue(removed);
topic.publish("1");
// it should not receive any events
assertTrueDelayed5sec(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(0, listener.objects.size());
}
});
}
@Test
public void removeMessageListener_whenNonExisting() {
boolean result = topic.removeMessageListener(UUID.randomUUID().toString());
assertFalse(result);
}
@Test
public void removeMessageListener_whenAlreadyRemoved() {
final ReliableMessageListenerMock listener = new ReliableMessageListenerMock();
String id = topic.addMessageListener(listener);
topic.removeMessageListener(id);
boolean result = topic.removeMessageListener(id);
assertFalse(result);
topic.publish("1");
// it should not receive any events
assertTrueDelayed5sec(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(0, listener.objects.size());
}
});
}
// ============================================
@Test
public void publishSingle() throws InterruptedException {
final ReliableMessageListenerMock listener = new ReliableMessageListenerMock();
topic.addMessageListener(listener);
final String msg = "foobar";
topic.publish(msg);
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertContains(listener.objects, msg);
}
});
}
@Test
public void publishNull() throws InterruptedException {
final ReliableMessageListenerMock listener = new ReliableMessageListenerMock();
topic.addMessageListener(listener);
topic.publish(null);
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertContains(listener.objects, null);
}
});
}
@Test
public void publishMultiple() throws InterruptedException {
final ReliableMessageListenerMock listener = new ReliableMessageListenerMock();
topic.addMessageListener(listener);
final List<String> items = new ArrayList<String>();
for (int k = 0; k < 5; k++) {
items.add("" + k);
}
for (String item : items) {
topic.publish(item);
}
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(items, Arrays.asList(listener.objects.toArray()));
}
});
}
@Test
public void testMessageFieldSetCorrectly() {
final ReliableMessageListenerMock listener = new ReliableMessageListenerMock();
topic.addMessageListener(listener);
final long beforePublishTime = Clock.currentTimeMillis();
topic.publish("foo");
final long afterPublishTime = Clock.currentTimeMillis();
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(1, listener.messages.size());
Message<String> message = listener.messages.get(0);
assertEquals("foo", message.getMessageObject());
Member localMember = local.getCluster().getLocalMember();
assertEquals(localMember, message.getPublishingMember());
long actualPublishTime = message.getPublishTime();
assertTrue(actualPublishTime >= beforePublishTime);
assertTrue(actualPublishTime <= afterPublishTime);
}
});
}
// makes sure that when a listener is register, we don't see any messages being published before
// it got registered. We'll only see the messages after it got registered.
@Test
public void testAlwaysStartAfterTail() {
topic.publish("1");
topic.publish("2");
topic.publish("3");
spawn(new Runnable() {
@Override
public void run() {
sleepSeconds(5);
topic.publish("4");
topic.publish("5");
topic.publish("6");
}
});
final ReliableMessageListenerMock listener = new ReliableMessageListenerMock();
topic.addMessageListener(listener);
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(asList("4", "5", "6"), Arrays.asList(listener.objects.toArray()));
}
});
}
@Test
public void statistics() {
final ReliableMessageListenerMock listener = new ReliableMessageListenerMock();
topic.addMessageListener(listener);
final int messageCount = 10;
final LocalTopicStats localTopicStats = topic.getLocalTopicStats();
for (int k = 0; k < messageCount; k++) {
topic.publish("foo");
}
assertEquals(messageCount, localTopicStats.getPublishOperationCount());
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(messageCount, localTopicStats.getReceiveOperationCount());
}
});
}
}