com.ecfront.fs.transfer.FTPToLocalTransfer.scala Maven / Gradle / Ivy

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package com.ecfront.fs.transfer

import java.io._

import com.ecfront.fs.operation.FTPOperation
import org.apache.commons.net.ftp.FTPClient


class FTPToLocalTransfer(ftpClient: FTPClient) extends FSTransfer {

  override protected def _transfer(sourcePath: String, targetPath: String): Boolean = {
    val outfile: File = new File(targetPath)
    var oStream: OutputStream = null
    try {
      oStream = new FileOutputStream(outfile)
      val fPath= if (sourcePath.startsWith("/")) sourcePath.substring(1) else sourcePath
      ftpClient.retrieveFile(fPath, oStream)
    }
    catch {
      case e: IOException =>
        logger.error("Download error.", e)
        false
    } finally oStream.close()
  }
}


object FTPToLocalTransfer {
  def apply(ftpClient: FTPClient) = new FTPToLocalTransfer(ftpClient)

  def apply(host: String, port: Int, userName: String, password: String) = {
    new FTPToLocalTransfer(FTPOperation(host, port, userName, password).getFTPClient)
  }
}