/**
* 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.zookeeper.test;
import static org.apache.zookeeper.test.ClientBase.CONNECTION_TIMEOUT;
import java.io.File;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.NetworkInterface;
import java.util.Enumeration;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.zookeeper.PortAssignment;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZKTestCase;
import org.apache.zookeeper.ZooKeeper;
import org.apache.zookeeper.Watcher.Event.KeeperState;
import org.apache.zookeeper.server.ServerCnxnFactory;
import org.apache.zookeeper.server.ZooKeeperServer;
import org.junit.Assert;
import org.junit.Test;
public class ClientPortBindTest extends ZKTestCase implements Watcher {
protected static final Logger LOG =
LoggerFactory.getLogger(ClientPortBindTest.class);
private volatile CountDownLatch startSignal;
/**
* Verify that the server binds to the specified address
*/
@Test
public void testBindByAddress() throws Exception {
String bindAddress = null;
Enumeration<NetworkInterface> intfs =
NetworkInterface.getNetworkInterfaces();
// if we have a loopback and it has an address use it
while(intfs.hasMoreElements()) {
NetworkInterface i = intfs.nextElement();
if (i.isLoopback()) {
Enumeration<InetAddress> addrs = i.getInetAddresses();
if (addrs.hasMoreElements()) {
bindAddress = addrs.nextElement().getHostAddress();
}
}
}
if (bindAddress == null) {
LOG.warn("Unable to determine loop back address, skipping test");
return;
}
final int PORT = PortAssignment.unique();
LOG.info("Using " + bindAddress + " as the bind address");
final String HOSTPORT = bindAddress + ":" + PORT;
LOG.info("Using " + HOSTPORT + " as the host/port");
File tmpDir = ClientBase.createTmpDir();
ClientBase.setupTestEnv();
ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
ServerCnxnFactory f = ServerCnxnFactory.createFactory(
new InetSocketAddress(bindAddress, PORT), -1);
f.startup(zks);
LOG.info("starting up the the server, waiting");
Assert.assertTrue("waiting for server up",
ClientBase.waitForServerUp(HOSTPORT,
CONNECTION_TIMEOUT));
startSignal = new CountDownLatch(1);
ZooKeeper zk = new ZooKeeper(HOSTPORT, CONNECTION_TIMEOUT, this);
try {
startSignal.await(CONNECTION_TIMEOUT,
TimeUnit.MILLISECONDS);
Assert.assertTrue("count == 0", startSignal.getCount() == 0);
zk.close();
} finally {
f.shutdown();
Assert.assertTrue("waiting for server down",
ClientBase.waitForServerDown(HOSTPORT,
CONNECTION_TIMEOUT));
}
}
public void process(WatchedEvent event) {
LOG.info("Event:" + event.getState() + " " + event.getType() + " " + event.getPath());
if (event.getState() == KeeperState.SyncConnected
&& startSignal != null && startSignal.getCount() > 0)
{
startSignal.countDown();
}
}
}