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/*
* 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.tuscany.sca.endpoint.zookeeper;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.zookeeper.server.NIOServerCnxn;
import org.apache.zookeeper.server.ServerConfig;
import org.apache.zookeeper.server.ZooKeeperServer;
import org.apache.zookeeper.server.persistence.FileTxnSnapLog;
import org.apache.zookeeper.server.quorum.QuorumPeerConfig.ConfigException;
/**
* This class starts and runs a standalone ZooKeeperServer.
*/
public class LocalZooKeeperServer {
private static final Logger logger = Logger.getLogger(LocalZooKeeperServer.class.getName());
private static final String USAGE = "Usage: LocalZooKeeperServer configfile | port datadir [ticktime] [maxcnxns]";
private NIOServerCnxn.Factory cnxnFactory;
private ZooKeeperServer zkServer;
/**
*
*/
public LocalZooKeeperServer() {
super();
}
public Thread folk(final ServerConfig config) {
Thread thread = new Thread() {
public void run() {
try {
LocalZooKeeperServer.this.run(config);
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
};
thread.start();
return thread;
}
public Thread folk(final String[] args) {
Thread thread = new Thread() {
public void run() {
try {
LocalZooKeeperServer.this.run(args);
} catch (Exception e) {
throw new IllegalStateException(e);
}
}
};
thread.start();
return thread;
}
/**
* Run from a ServerConfig.
* @param config ServerConfig to use.
* @throws IOException
*/
public void run(ServerConfig config) throws IOException {
logger.info("Starting ZooKeeper server");
try {
// Note that this thread isn't going to be doing anything else,
// so rather than spawning another thread, we will just call
// run() in this thread.
// create a file logger url from the command line args
zkServer = new ZooKeeperServer();
FileTxnSnapLog ftxn = new FileTxnSnapLog(new File(config.getDataLogDir()), new File(config.getDataDir()));
zkServer.setTxnLogFactory(ftxn);
zkServer.setTickTime(config.getTickTime());
cnxnFactory = new NIOServerCnxn.Factory(config.getClientPort(), config.getMaxClientCnxns());
cnxnFactory.startup(zkServer);
cnxnFactory.join();
if (zkServer.isRunning()) {
zkServer.shutdown();
}
} catch (InterruptedException e) {
// warn, but generally this is ok
logger.log(Level.WARNING, "Server interrupted", e);
}
}
public void run(String[] args) throws ConfigException, IOException {
ServerConfig config = new ServerConfig();
if (args.length == 1) {
config.parse(args[0]);
} else {
config.parse(args);
}
run(config);
}
/**
* Shutdown the serving instance
*/
public void shutdown() {
cnxnFactory.shutdown();
}
/*
* Start up the ZooKeeper server.
*
* @param args the configfile or the port datadir [ticktime]
*/
public static void main(String[] args) {
LocalZooKeeperServer main = new LocalZooKeeperServer();
try {
main.run(args);
} catch (IllegalArgumentException e) {
logger.log(Level.SEVERE, "Invalid arguments, exiting abnormally", e);
logger.info(USAGE);
System.err.println(USAGE);
System.exit(2);
} catch (ConfigException e) {
logger.log(Level.SEVERE, "Invalid config, exiting abnormally", e);
System.err.println("Invalid config, exiting abnormally");
System.exit(2);
} catch (Exception e) {
logger.log(Level.SEVERE, "Unexpected exception, exiting abnormally", e);
System.exit(1);
}
logger.info("Exiting normally");
System.exit(0);
}
}
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