Java命令行程序构建工具airlift使用

package com.ilucky.airlift;

import java.util.Arrays;

import io.airlift.airline.Cli;
import io.airlift.airline.Cli.CliBuilder;
import io.airlift.airline.Help;
import io.airlift.airline.ParseArgumentsUnexpectedException;

/**
 * Java命令行程序构建工具:io.airlift.airline.Cli:
 * 以前开发Java命令行程序,需要解析很多参数,以及一些帮助信息, 今天可以使用airlfit工具快速构建命令行程序.
 * 
 * v1.0:20161115
 * 右击Run As - Run Configurations - Arguments - Program arguments
 * 输入: MyCommand  test, 运行, 查看Console窗口.
 * @author Ilucky
 */
public class MainTest {

    @SuppressWarnings("unchecked")
    public static void main(String[] args) {
        System.out.println("===> " + Arrays.asList(args));
        CliBuilder<Runnable> builder = Cli.<Runnable>builder("MyCommand:Builder")
                .withDescription("MyCommand:Description")
                .withDefaultCommand(Help.class)
                .withCommands(Help.class, MyCommand.class);

        Cli<Runnable> cliParser = builder.build();
        System.out.println("getMetadata().getName()="+cliParser.getMetadata().getName());
        System.out.println("getMetadata().getDescription()="+cliParser.getMetadata().getDescription());
        System.out.println("getMetadata().getCommandGroups()="+Arrays.asList(cliParser.getMetadata().getCommandGroups()));
        System.out.println("getMetadata().getOptions()="+cliParser.getMetadata().getOptions());
        System.out.println("getMetadata().getDefaultCommand().getName()="+cliParser.getMetadata().getDefaultCommand().getName());
        try {
            cliParser.parse(args).run();
        } catch (ParseArgumentsUnexpectedException e) {
            System.out.println("Invalid command:"+e.toString());
        }
    }
}
/**
输入: MyCommand  test, 结果:
===> [MyCommand, test]
getMetadata().getName()=MyCommand:Builder
getMetadata().getDescription()=MyCommand:Description
getMetadata().getCommandGroups()=[[]]
getMetadata().getOptions()=[]
getMetadata().getDefaultCommand().getName()=help
MyCommand=test

输入: 空, 结果:
===> []
getMetadata().getName()=MyCommand:Builder
getMetadata().getDescription()=MyCommand:Description
getMetadata().getCommandGroups()=[[]]
getMetadata().getOptions()=[]
getMetadata().getDefaultCommand().getName()=help
usage: MyCommand:Builder <command> [<args>]

The most commonly used MyCommand:Builder commands are:
    MyCommand   This is my command
    help        Display help information

See 'MyCommand:Builder help <command>' for more information on a specific
command.

输入: help, 结果:
===> [help]
getMetadata().getName()=MyCommand:Builder
getMetadata().getDescription()=MyCommand:Description
getMetadata().getCommandGroups()=[[]]
getMetadata().getOptions()=[]
getMetadata().getDefaultCommand().getName()=help
usage: MyCommand:Builder <command> [<args>]

The most commonly used MyCommand:Builder commands are:
    MyCommand   This is my command
    help        Display help information

See 'MyCommand:Builder help <command>' for more information on a specific
command.

*/