/**
* 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.whirr.service.zookeeper.integration;
import static junit.framework.Assert.assertEquals;
import static org.hamcrest.Matchers.instanceOf;
import static org.junit.Assert.assertThat;
import java.io.IOException;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import org.apache.commons.configuration.CompositeConfiguration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.whirr.service.ClusterSpec;
import org.apache.whirr.service.Service;
import org.apache.whirr.service.ServiceFactory;
import org.apache.whirr.service.zookeeper.ZooKeeperCluster;
import org.apache.whirr.service.zookeeper.ZooKeeperService;
import org.apache.whirr.ssh.KeyPair;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooKeeper;
import org.apache.zookeeper.Watcher.Event.KeeperState;
import org.apache.zookeeper.ZooDefs.Ids;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.jcraft.jsch.JSchException;
public class ZooKeeperServiceTest {
private ClusterSpec clusterSpec;
private ZooKeeperService service;
private ZooKeeperCluster cluster;
@Before
public void setUp() throws ConfigurationException, IOException,
JSchException {
CompositeConfiguration config = new CompositeConfiguration();
if (System.getProperty("config") != null) {
config.addConfiguration(new PropertiesConfiguration(System.getProperty("config")));
}
config.addConfiguration(new PropertiesConfiguration("whirr-zookeeper-test.properties"));
clusterSpec = new ClusterSpec(config);
if (clusterSpec.getPrivateKey() == null) {
Map<String, String> pair = KeyPair.generate();
clusterSpec.setPublicKey(pair.get("public"));
clusterSpec.setPrivateKey(pair.get("private"));
}
Service s = new ServiceFactory().create(clusterSpec.getServiceName());
assertThat(s, instanceOf(ZooKeeperService.class));
service = (ZooKeeperService) s;
cluster = service.launchCluster(clusterSpec);
}
@Test
public void test() throws Exception {
class ConnectionWatcher implements Watcher {
private ZooKeeper zk;
private CountDownLatch latch = new CountDownLatch(1);
public void connect(String hosts) throws IOException, InterruptedException {
zk = new ZooKeeper(hosts, 5000, this);
latch.await();
}
public ZooKeeper getZooKeeper() {
return zk;
}
@Override
public void process(WatchedEvent event) {
if (event.getState() == KeeperState.SyncConnected) {
latch.countDown();
}
}
public void close() throws InterruptedException {
if (zk != null) {
zk.close();
}
}
}
String path = "/data";
String data = "Hello";
ConnectionWatcher watcher = new ConnectionWatcher();
watcher.connect(cluster.getHosts());
watcher.getZooKeeper().create(path, data.getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
watcher.close();
watcher = new ConnectionWatcher();
watcher.connect(cluster.getHosts());
byte[] actualData = watcher.getZooKeeper().getData(path, false, null);
assertEquals(data, new String(actualData));
watcher.close();
}
@After
public void tearDown() throws IOException {
service.destroyCluster(clusterSpec);
}
}