package org.apache.helix.testutil;
/*
* 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.
*/
import java.io.File;
import java.io.IOException;
import java.net.ServerSocket;
import org.I0Itec.zkclient.IDefaultNameSpace;
import org.I0Itec.zkclient.NetworkUtil;
import org.I0Itec.zkclient.ZkServer;
import org.apache.log4j.Logger;
import com.google.common.io.Files;
public class ZkTestUtil {
static Logger logger = Logger.getLogger(ZkTestUtil.class);
static final int MAX_PORT = 65535;
static final int DEFAULT_ZK_START_PORT = 2183;
public static int availableTcpPort() {
ServerSocket ss = null;
try {
ss = new ServerSocket(0);
ss.setReuseAddress(true);
return ss.getLocalPort();
} catch (IOException e) {
} finally {
if (ss != null) {
try {
ss.close();
} catch (IOException e) {
// should not be thrown
}
}
}
return -1;
}
public static int availableTcpPort(int startPort) {
int port = startPort;
for (; port <= MAX_PORT; port++) {
if (NetworkUtil.isPortFree(port))
break;
}
return port > MAX_PORT ? -1 : port;
}
public static File createAutoDeleteTempDir() {
File tempdir = Files.createTempDir();
tempdir.delete();
tempdir.mkdir();
logger.info("Create temp dir: " + tempdir.getAbsolutePath());
tempdir.deleteOnExit();
return tempdir;
}
public static ZkServer startZkServer() {
File tmpdir = createAutoDeleteTempDir();
File logdir = new File(tmpdir + File.separator + "translog");
File datadir = new File(tmpdir + File.separator + "snapshot");
IDefaultNameSpace defaultNameSpace = new IDefaultNameSpace() {
@Override
public void createDefaultNameSpace(org.I0Itec.zkclient.ZkClient zkClient) {
// init any zk paths if needed
}
};
int port = availableTcpPort(DEFAULT_ZK_START_PORT);
ZkServer zkServer =
new ZkServer(datadir.getAbsolutePath(), logdir.getAbsolutePath(), defaultNameSpace, port);
zkServer.start();
logger.info("Start zookeeper at localhost:" + zkServer.getPort() + " in thread "
+ Thread.currentThread().getName());
return zkServer;
}
}