/**
* 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.flume.node;
import junit.framework.Assert;
import org.apache.flume.conf.FlumeConfiguration;
import org.apache.flume.conf.FlumeConfiguration.AgentConfiguration;
import org.apache.flume.lifecycle.LifecycleController;
import org.apache.flume.lifecycle.LifecycleState;
import org.junit.Test;
import com.google.common.eventbus.EventBus;
import com.google.common.eventbus.Subscribe;
public class TestPollingZooKeeperConfigurationProvider extends
TestAbstractZooKeeperConfigurationProvider {
private EventBus eb;
private EventSync es;
private PollingZooKeeperConfigurationProvider cp;
private class EventSync {
private boolean notified;
@Subscribe
public synchronized void notifyEvent(MaterializedConfiguration mConfig) {
notified = true;
notifyAll();
}
public synchronized void awaitEvent() throws InterruptedException {
while (!notified) {
wait();
}
}
public synchronized void reset() {
notified = false;
}
}
@Override
protected void doSetUp() throws Exception {
eb = new EventBus("test");
es = new EventSync();
es.reset();
eb.register(es);
cp = new PollingZooKeeperConfigurationProvider(AGENT_NAME, "localhost:"
+ zkServer.getPort(), null, eb);
cp.start();
LifecycleController.waitForOneOf(cp, LifecycleState.START_OR_ERROR);
}
@Override
protected void doTearDown() throws Exception {
// do nothing
}
@Test
public void testPolling() throws Exception {
es.awaitEvent();
es.reset();
FlumeConfiguration fc = cp.getFlumeConfiguration();
Assert.assertTrue(fc.getConfigurationErrors().isEmpty());
AgentConfiguration ac = fc.getConfigurationFor(AGENT_NAME);
Assert.assertNull(ac);
addData();
es.awaitEvent();
es.reset();
verifyProperties(cp);
}
}