/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file 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 "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.apache.camel.component.jgroups;
import java.util.concurrent.TimeUnit;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.jgroups.JChannel;
import org.jgroups.Message;
import org.jgroups.ReceiverAdapter;
import org.junit.Test;
public class JGroupsProducerTest extends CamelTestSupport {
static final String CLUSTER_NAME = "CLUSTER_NAME";
static final String MESSAGE = "MESSAGE";
// Fixtures
JChannel channel;
Object messageReceived;
// Routes fixture
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
@Override
public void configure() throws Exception {
from("direct:start").to("jgroups:" + CLUSTER_NAME);
}
};
}
// Fixture setup
@Override
protected void doPreSetup() throws Exception {
super.doPreSetup();
channel = new JChannel();
channel.setReceiver(new ReceiverAdapter() {
@Override
public void receive(Message msg) {
messageReceived = msg.getObject();
}
});
channel.connect(CLUSTER_NAME);
}
@Override
public void tearDown() throws Exception {
channel.close();
super.tearDown();
}
@Test
public void shouldReceiveMulticastedBody() throws Exception {
// When
sendBody("direct:start", MESSAGE);
// Then
waitForMulticastChannel(5);
assertEquals(MESSAGE, messageReceived);
}
@Test
public void shouldNotSendNullMessage() throws Exception {
// When
sendBody("direct:start", null);
// Then
waitForMulticastChannel(2);
assertNull(messageReceived);
}
// Helpers
private void waitForMulticastChannel(int attempts) throws InterruptedException {
while (messageReceived == null && attempts > 0) {
TimeUnit.SECONDS.sleep(1);
attempts--;
}
}
}