/*
* 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.client.topic;
import com.hazelcast.client.proxy.ClientReliableTopicProxy;
import com.hazelcast.client.test.TestHazelcastFactory;
import com.hazelcast.config.Config;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.ITopic;
import com.hazelcast.core.Message;
import com.hazelcast.core.MessageListener;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import com.hazelcast.topic.impl.reliable.ReliableMessageListenerMock;
import com.hazelcast.util.Clock;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
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.assertNull;
import static org.junit.Assert.assertTrue;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class ClientReliableTopicTest extends HazelcastTestSupport {
private final TestHazelcastFactory hazelcastFactory = new TestHazelcastFactory();
private HazelcastInstance client;
@Before
public void setup() {
Config config = new Config();
hazelcastFactory.newHazelcastInstance(config);
client = hazelcastFactory.newHazelcastClient();
}
@After
public void tearDown() {
hazelcastFactory.terminateAll();
}
@Test
public void testCreation() {
ITopic topic = client.getReliableTopic(randomString());
assertInstanceOf(ClientReliableTopicProxy.class, topic);
}
// ============== addMessageListener ==============================
@Test(expected = NullPointerException.class)
public void addMessageListener_whenNull() {
ITopic topic = client.getReliableTopic(randomString());
topic.addMessageListener(null);
}
@Test
public void addMessageListener() {
ITopic topic = client.getReliableTopic(randomString());
String id = topic.addMessageListener(new ReliableMessageListenerMock());
assertNotNull(id);
}
// ============== removeMessageListener ==============================
@Test(expected = NullPointerException.class)
public void removeMessageListener_whenNull() {
ITopic topic = client.getReliableTopic(randomString());
topic.removeMessageListener(null);
}
@Test
public void removeMessageListener_whenExisting() {
ITopic topic = client.getReliableTopic(randomString());
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() {
ITopic topic = client.getReliableTopic(randomString());
boolean result = topic.removeMessageListener(UUID.randomUUID().toString());
assertFalse(result);
}
@Test
public void removeMessageListener_whenAlreadyRemoved() {
ITopic topic = client.getReliableTopic(randomString());
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 {
ITopic topic = client.getReliableTopic(randomString());
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 {
ITopic topic = client.getReliableTopic(randomString());
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 {
ITopic topic = client.getReliableTopic(randomString());
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() {
ITopic topic = client.getReliableTopic(randomString());
final ReliableMessageListenerMock listener = new ReliableMessageListenerMock();
topic.addMessageListener(listener);
final long beforePublishTime = Clock.currentTimeMillis();
final String messageStr = randomString();
topic.publish(messageStr);
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(messageStr, message.getMessageObject());
assertNull(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() {
final ITopic topic = client.getReliableTopic(randomString());
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 testListener() throws InterruptedException {
ITopic topic = client.getReliableTopic(randomString());
int messageCount = 10;
final CountDownLatch latch = new CountDownLatch(messageCount);
MessageListener listener = new MessageListener() {
public void onMessage(Message message) {
latch.countDown();
}
};
topic.addMessageListener(listener);
for (int i = 0; i < messageCount; i++) {
topic.publish(i);
}
assertTrue(latch.await(20, TimeUnit.SECONDS));
}
@Test
public void testRemoveListener() {
ITopic topic = client.getReliableTopic(randomString());
MessageListener listener = new MessageListener() {
public void onMessage(Message message) {
}
};
String id = topic.addMessageListener(listener);
assertTrue(topic.removeMessageListener(id));
}
@Test(expected = UnsupportedOperationException.class)
public void testGetLocalTopicStats() throws Exception {
ITopic topic = client.getReliableTopic(randomString());
topic.getLocalTopicStats();
}
}