/**
* Copyright (C) 2010-2013 Alibaba Group Holding Limited
*
* Licensed 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 com.alibaba.rocketmq.namesrv;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Properties;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.PosixParser;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.joran.JoranConfigurator;
import com.alibaba.rocketmq.common.MQVersion;
import com.alibaba.rocketmq.common.MixAll;
import com.alibaba.rocketmq.common.constant.LoggerName;
import com.alibaba.rocketmq.common.namesrv.NamesrvConfig;
import com.alibaba.rocketmq.remoting.netty.NettyServerConfig;
import com.alibaba.rocketmq.remoting.protocol.RemotingCommand;
/**
* Name server 启动入口
*
* @author shijia.wxr<vintage.wang@gmail.com>
* @since 2013-7-5
*/
public class NamesrvStartup {
public static Options buildCommandlineOptions(final Options options) {
Option opt = new Option("c", "configFile", true, "Name server config properties file");
opt.setRequired(false);
options.addOption(opt);
opt = new Option("p", "printConfigItem", false, "Print all config item");
opt.setRequired(false);
options.addOption(opt);
return options;
}
public static void main(String[] args) {
System.setProperty(RemotingCommand.RemotingVersionKey, Integer.toString(MQVersion.CurrentVersion));
try {
// 解析命令行
Options options = MixAll.buildCommandlineOptions(new Options());
final CommandLine commandLine =
MixAll.parseCmdLine("mqnamesrv", args, buildCommandlineOptions(options),
new PosixParser());
if (null == commandLine) {
System.exit(-1);
return;
}
// 初始化配置文件
final NamesrvConfig namesrvConfig = new NamesrvConfig();
final NettyServerConfig nettyServerConfig = new NettyServerConfig();
nettyServerConfig.setListenPort(9876);
if (commandLine.hasOption('c')) {
String file = commandLine.getOptionValue('c');
if (file != null) {
InputStream in = new BufferedInputStream(new FileInputStream(file));
Properties properties = new Properties();
properties.load(in);
MixAll.properties2Object(properties, namesrvConfig);
MixAll.properties2Object(properties, nettyServerConfig);
System.out.println("load config properties file OK, " + file);
in.close();
}
}
// 打印默认配置
if (commandLine.hasOption('p')) {
MixAll.printObjectProperties(null, namesrvConfig);
MixAll.printObjectProperties(null, nettyServerConfig);
System.exit(0);
}
MixAll.properties2Object(MixAll.commandLine2Properties(commandLine), namesrvConfig);
if (null == namesrvConfig.getRocketmqHome()) {
System.out.println("Please set the " + MixAll.ROCKETMQ_HOME_ENV
+ " variable in your environment to match the location of the RocketMQ installation");
System.exit(-2);
}
// 初始化Logback
LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
JoranConfigurator configurator = new JoranConfigurator();
configurator.setContext(lc);
lc.reset();
configurator.doConfigure(namesrvConfig.getRocketmqHome() + "/conf/logback_namesrv.xml");
final Logger log = LoggerFactory.getLogger(LoggerName.NamesrvLoggerName);
// 初始化服务控制对象
final NamesrvController controller = new NamesrvController(namesrvConfig, nettyServerConfig);
boolean initResult = controller.initialize();
if (!initResult) {
controller.shutdown();
System.exit(-3);
}
Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
private volatile boolean hasShutdown = false;
private AtomicInteger shutdownTimes = new AtomicInteger(0);
@Override
public void run() {
synchronized (this) {
log.info("shutdown hook was invoked, " + this.shutdownTimes.incrementAndGet());
if (!this.hasShutdown) {
this.hasShutdown = true;
long begineTime = System.currentTimeMillis();
controller.shutdown();
long consumingTimeTotal = System.currentTimeMillis() - begineTime;
log.info("shutdown hook over, consuming time total(ms): " + consumingTimeTotal);
}
}
}
}, "ShutdownHook"));
// 启动服务
controller.start();
String tip = "The Name Server boot success.";
log.info(tip);
System.out.println(tip);
}
catch (Throwable e) {
e.printStackTrace();
System.exit(-1);
}
}
}