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A Spark SQl library for MongoDB

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/*
 *  Licensed to STRATIO (C) under one or more contributor license agreements.
 *  See the NOTICE file distributed with this work for additional information
 *  regarding copyright ownership. The STRATIO (C) 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 com.stratio.provider.util

import scala.language.reflectiveCalls
import scala.util.Try

/**
 * DSL helper for enclosing some functionality into a closeable type.
 * Helper will be responsible of closing the object.
 * i.e.:{{{
 *   import java.io._
 *   val writer = new PrintWriter(new File("test.txt" ))
 *   using(writer){ w =>
 *    w.append("hi!")
 *   }
 * }}}
 */
object using {

  type AutoClosable = { def close(): Unit }

  def apply[A <: AutoClosable, B](resource: A)(code: A => B): B =
    try {
      code(resource)
    }
    finally {
      Try(resource.close())
    }

}