ScalaでSFTP経由でファイル取得(LoanPatternバージョン)

loanPattern.scala

import com.jcraft.jsch.{Session, ChannelSftp, JSch}

object App {
  def using[A,B]( resource:A )( func: A => B )( endAction: A => Unit ){
    try {
      func(resource)
    }catch{
      case e:Exception => e.printStackTrace()
    } finally {
      endAction(resource)
    }
  }

  def main(args: Array[String]){
    val jsch = new JSch
    val userName = "Gakkie"
    val hostName = "localhost"
    val password = "password"
    using(jsch.getSession(userName,hostName,22)){ s =>
      s.setPassword(password)
      s.connect()
      using(s.openChannel("sftp").asInstanceOf[ChannelSftp]){ c =>
        c.connect()
        //sftpでファイルを取得
        c.get("/tmp/src.csv","/tmp/dist.csv")
      }{c => c.disconnect()}
    }{s => s.disconnect()}
  }
}