/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.spark.api.r

import java.io.{DataInputStream, DataOutputStream}
import java.net.Socket

import org.apache.spark.SparkConf
import org.apache.spark.security.SocketAuthHelper

private[spark] class RAuthHelper(conf: SparkConf) extends SocketAuthHelper(conf) {

  override protected def readUtf8(s: Socket): String = {
    SerDe.readString(new DataInputStream(s.getInputStream()))
  }

  override protected def writeUtf8(str: String, s: Socket): Unit = {
    val out = s.getOutputStream()
    SerDe.writeString(new DataOutputStream(out), str)
    out.flush()
  }

}
