args4J をScalaから使う

Args4j.scala

package com.github.masahitojp

import org.kohsuke.args4j.CmdLineException
import org.kohsuke.args4j.CmdLineParser
import org.kohsuke.args4j.Option
import grizzled.slf4j.Logger
import scala.collection.JavaConversions._
import scala.util.control.Exception._

object Args4j {
  val logger = Logger[this.type]

  def main(args: Array[String]) {
     val args1 = args.toList
    val args4j: Args4j = new Args4j
    val parser= new CmdLineParser(args4j)

    allCatch either parser.parseArgument(args1) match {
      case Right(x) => {
        if (!args4j.doPrintUsage){
          System.out.println("ID:" + args4j.id)
          System.out.println("Name:" + args4j.name)
          System.out.println("Debug:" + args4j.isDebug)
          System.out.println("Optional:" + args4j.optional)
        }
        else{
          parser.printUsage(System.out)
        }
      }
      case Left(e:CmdLineException) => {
        logger.warn(e.printStackTrace())
        parser.printSingleLineUsage(System.out)
      }
    }
  }
}

class Args4j {
  @Option(name = "-i", metaVar = "id", usage = "user id") private var id: Int = 0
  @Option(name = "-n", metaVar = "name", usage = "user name") private var name: String = null
  @Option(name = "-h", aliases = Array("--help"), usage = "print help") private var doPrintUsage: Boolean = false
  @Option(name = "-d", aliases = Array("--debug"), usage = "debug option") private var isDebug: Boolean = false
  @Option(name = "-o", usage = "optional args", required = false) private var optional: String = null
}

Build.scala

import sbt._
import sbt.Keys._

object Args4sBuild extends Build {

  lazy val args4s = Project(
    id = "args4s",
    base = file("."),
    settings = Project.defaultSettings ++ Seq(
      name := "args4s",
      organization := "com.github.masahitojp",
      version := "0.1-SNAPSHOT",
      scalaVersion := "2.9.2"   ,
      // add other settings here
      resolvers += "jenkins-repository" at "http://repo.jenkins-ci.org/public/",
        libraryDependencies ++= Seq(
        "args4j" % "args4j" % "2.0.21",
        // test
        "org.specs2" %% "specs2" % "1.9" % "test",

        //log
        "org.clapper" %% "grizzled-slf4j" % "0.6.9",
        "ch.qos.logback" % "logback-classic" % "1.0.1"
        )
    )
  )
}