ScalaでSFTP経由でファイル取得(Loan Patternバージョン)

loanPattern.scala

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

object App {
  def using(s: Session)(f: Session => Any){
    try {
      f(s)
    }catch{
      case e:Exception => e.printStackTrace
    } finally {
      s.disconnect()
    }
  }

  def using(c: ChannelSftp)(f: ChannelSftp => Any){
    try {
      f(c)
    }catch{
      case e:Exception => e.printStackTrace
    } finally {
      c.disconnect()
    }
  }

  def main(args: Array[String]){
    val userName = "Gakkie"
    val hostName = "localhost"
    val password = "hogehoge"
    
    val jsch = new JSch
    using(jsch.getSession(userName,hostName,22)){ s =>
      s.setPassword(password)

      using(s.openChannel("sftp").asInstanceOf[ChannelSftp]){ c =>
        c.connect()
        //sftpでファイルを取得
        c.get("/tmp/ahoge_src.tsv","/tmp/ahoge_dist.tsv")
      }
    }
  }
}