com.datamountaineer.streamreactor.connect.concurrent.ExecutorExtension.scala Maven / Gradle / Ivy

/*
 *  Copyright 2017 Datamountaineer.
 *
 *  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 com.datamountaineer.streamreactor.connect.concurrent

import java.util.concurrent.Executor

import scala.concurrent.{Future, Promise}

object ExecutorExtension {

  implicit class RunnableWrapper(val executor: Executor) extends AnyVal {
    def submit[T](thunk: => T): Future[T] = {
      val promise = Promise[T]()
      executor.execute(new Runnable {
        override def run(): Unit = {
          try {
            val t = thunk
            promise.success(t)
          } catch {
            case t: Throwable => promise.failure(t)
          }
        }
      })
      promise.future
    }
  }

}