/// <summary>parse args</summary>
/// <exception cref="System.ArgumentException"/>
private static CommandLine ParseArgs(Options opts, params string[] args)
{
OptionBuilder.WithArgName("NameNode|DataNode");
OptionBuilder.HasArg();
OptionBuilder.WithDescription("specify jmx service (NameNode by default)");
Option jmx_service = OptionBuilder.Create("service");
OptionBuilder.WithArgName("mbean server");
OptionBuilder.HasArg();
OptionBuilder.WithDescription("specify mbean server (localhost by default)");
Option jmx_server = OptionBuilder.Create("server");
OptionBuilder.WithDescription("print help");
Option jmx_help = OptionBuilder.Create("help");
OptionBuilder.WithArgName("mbean server port");
OptionBuilder.HasArg();
OptionBuilder.WithDescription("specify mbean server port, " + "if missing - it will try to connect to MBean Server in the same VM"
);
Option jmx_port = OptionBuilder.Create("port");
OptionBuilder.WithArgName("VM's connector url");
OptionBuilder.HasArg();
OptionBuilder.WithDescription("connect to the VM on the same machine;" + "\n use:\n jstat -J-Djstat.showUnsupported=true -snap <vmpid> | "
+ "grep sun.management.JMXConnectorServer.address\n " + "to find the url");
Option jmx_localVM = OptionBuilder.Create("localVM");
opts.AddOption(jmx_server);
opts.AddOption(jmx_help);
opts.AddOption(jmx_service);
opts.AddOption(jmx_port);
opts.AddOption(jmx_localVM);
CommandLine commandLine = null;
CommandLineParser parser = new GnuParser();
try
{
commandLine = parser.Parse(opts, args, true);
}
catch (ParseException e)
{
PrintUsage(opts);
throw new ArgumentException("invalid args: " + e.Message);
}
return(commandLine);
}