/*
* Copyright (c) 2008-2014 the original author or authors.
*
* 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 org.cometd.client;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.cometd.bayeux.Channel;
import org.cometd.bayeux.Message;
import org.cometd.bayeux.client.ClientSessionChannel;
import org.junit.Assert;
import org.junit.Test;
public class SubscriptionTest extends ClientServerTest
{
@Test
public void testSubscriptionToMetaChannelFails() throws Exception
{
startServer(null);
BayeuxClient client = newBayeuxClient();
client.handshake();
Assert.assertTrue(client.waitFor(5000, BayeuxClient.State.CONNECTED));
final CountDownLatch latch = new CountDownLatch(1);
String channelName = Channel.META_CONNECT;
ClientSessionChannel channel = client.getChannel(channelName);
channel.subscribe(new ClientSessionChannel.MessageListener()
{
@Override
public void onMessage(ClientSessionChannel channel, Message message)
{
}
}, new ClientSessionChannel.MessageListener()
{
@Override
public void onMessage(ClientSessionChannel channel, Message message)
{
Assert.assertFalse(message.isSuccessful());
latch.countDown();
}
});
Assert.assertTrue(latch.await(5, TimeUnit.SECONDS));
Assert.assertEquals(0, channel.getSubscribers().size());
Assert.assertEquals(0, bayeux.getChannel(channelName).getSubscribers().size());
disconnectBayeuxClient(client);
}
@Test
public void testSubscriptionToServiceChannelIsANoOperation() throws Exception
{
startServer(null);
BayeuxClient client = newBayeuxClient();
client.handshake();
Assert.assertTrue(client.waitFor(5000, BayeuxClient.State.CONNECTED));
String channelName = "/service/test";
final CountDownLatch subscribeLatch = new CountDownLatch(1);
final CountDownLatch messageLatch = new CountDownLatch(1);
ClientSessionChannel channel = client.getChannel(channelName);
ClientSessionChannel.MessageListener listener = new ClientSessionChannel.MessageListener()
{
@Override
public void onMessage(ClientSessionChannel channel, Message message)
{
messageLatch.countDown();
}
};
channel.subscribe(listener, new ClientSessionChannel.MessageListener()
{
@Override
public void onMessage(ClientSessionChannel channel, Message message)
{
Assert.assertTrue(message.isSuccessful());
subscribeLatch.countDown();
}
});
Assert.assertTrue(subscribeLatch.await(5, TimeUnit.SECONDS));
Assert.assertEquals(1, channel.getSubscribers().size());
Assert.assertEquals(0, bayeux.getChannel(channelName).getSubscribers().size());
channel.publish("test");
Assert.assertFalse(messageLatch.await(1, TimeUnit.SECONDS));
final CountDownLatch unsubscribeLatch = new CountDownLatch(1);
channel.unsubscribe(listener, new ClientSessionChannel.MessageListener()
{
@Override
public void onMessage(ClientSessionChannel channel, Message message)
{
Assert.assertTrue(message.isSuccessful());
unsubscribeLatch.countDown();
}
});
Assert.assertTrue(subscribeLatch.await(5, TimeUnit.SECONDS));
Assert.assertEquals(0, channel.getSubscribers().size());
disconnectBayeuxClient(client);
}
}