content: /**
   * 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 org.apache.aurora.scheduler.mesos;
  
  import java.util.Optional;
  
  import org.apache.mesos.MesosSchedulerDriver;
  import org.apache.mesos.Protos.Credential;
  import org.apache.mesos.Protos.FrameworkInfo;
  import org.apache.mesos.Scheduler;
  import org.apache.mesos.SchedulerDriver;
  import org.apache.mesos.v1.Protos;
  
  import static org.apache.aurora.scheduler.mesos.ProtosConversion.convert;
  
  /**
   * A minimal shim over the constructor to {@link MesosSchedulerDriver} to minimize code that
   * requires the libmesos native library.
   */
  class DriverFactoryImpl implements DriverFactory {
  
    @Override
    public SchedulerDriver create(
        Scheduler scheduler,
        Optional<Protos.Credential> credentials,
        Protos.FrameworkInfo frameworkInfo,
        String master) {
  
      FrameworkInfo convertedFrameworkInfo = convert(frameworkInfo);
      Optional<Credential> convertedCredentials = credentials.map(ProtosConversion::convert);
  
      if (credentials.isPresent()) {
        return new MesosSchedulerDriver(
            scheduler,
            convertedFrameworkInfo,
            master,
            false, // Disable implicit acknowledgements.
            convertedCredentials.get());
      } else {
        return new MesosSchedulerDriver(
            scheduler,
            convertedFrameworkInfo,
            master,
            false); // Disable implicit acknowledgements.
      }
    }
  }
  