text: /*
   * Copyright 2016 by Eugene Yokota
   *
   * 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 gigahorse
  
  import java.io.{ File, FileOutputStream }
  
  import scala.concurrent.Future
  import scala.util.Try
  
  object DownloadHandler {
    /** Function from `StreamResponse` to `Future[File]` */
    def asFile(file: File): StreamResponse => Future[File] = (response: StreamResponse) =>
      {
        val stream = response.byteBuffers
        val out = new FileOutputStream(file).getChannel
        stream.foldResource(file)((acc, bb) => {
          out.write(bb)
          acc
        }, () => Try(out.close()))
      }
  }
  