fm.common.rich.RichAwait.scala Maven / Gradle / Ivy

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/*
 * Copyright 2014 Frugal Mechanic (http://frugalmechanic.com)
 *
 * Licensed 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 fm.common.rich

import java.util.concurrent.{CancellationException, TimeoutException}
import scala.concurrent.{Await, Awaitable}
import scala.concurrent.duration.Duration

final class RichAwait(val await: Await.type) extends AnyVal {
  /**
   * Like Await.result but returns Some(...) on success and None on Timeout or Cancellation
   */
  def getResult[T](awaitable: Awaitable[T], atMost: Duration): Option[T] = try {
    Some(await.result(awaitable, atMost))
  } catch {
    case _: CancellationException => None
    case _: TimeoutException => None
  }
}