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/*
* 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.java
import com.google.common.base.Optional
import scala.collection.convert.Wrappers.MapWrapper
private[spark] object JavaUtils {
def optionToOptional[T](option: Option[T]): Optional[T] =
option match {
case Some(value) => Optional.of(value)
case None => Optional.absent()
}
// Workaround for SPARK-3926 / SI-8911
def mapAsSerializableJavaMap[A, B](underlying: collection.Map[A, B]) =
new SerializableMapWrapper(underlying)
class SerializableMapWrapper[A, B](underlying: collection.Map[A, B])
extends MapWrapper(underlying) with java.io.Serializable
}
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