spark/hbase-spark/src/main/scala/org/apache/hadoop/hbase/spark/datasources/SerializableConfiguration.scala

/*
 * 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.hadoop.hbase.spark.datasources

import java.io.{IOException, ObjectInputStream, ObjectOutputStream}

import org.apache.hadoop.conf.Configuration
import org.apache.yetus.audience.InterfaceAudience;

import scala.util.control.NonFatal

@InterfaceAudience.Private
class SerializableConfiguration(@transient var value: Configuration) extends Serializable {
  private def writeObject(out: ObjectOutputStream): Unit = tryOrIOException {
    out.defaultWriteObject()
    value.write(out)
  }

  private def readObject(in: ObjectInputStream): Unit = tryOrIOException {
    value = new Configuration(false)
    value.readFields(in)
  }

  def tryOrIOException(block: => Unit) {
    try {
      block
    } catch {
      case e: IOException => throw e
      case NonFatal(t) => throw new IOException(t)
    }
  }
}