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.benchmark;
  
  import java.util.Set;
  
  import org.apache.aurora.scheduler.storage.entities.IHostAttributes;
  import org.apache.aurora.scheduler.storage.entities.IScheduledTask;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * Benchmark test settings.
   */
  final class BenchmarkSettings {
    private final Set<IHostAttributes> hostAttributes;
    private final double siblingClusterUtilization;
    private final double victimClusterUtilization;
    private final Set<IScheduledTask> tasks;
  
    private BenchmarkSettings(
        double siblingClusterUtilization,
        double victimClusterUtilization,
        Set<IHostAttributes> hostAttributes,
        Set<IScheduledTask> tasks) {
  
      this.siblingClusterUtilization = siblingClusterUtilization;
      this.victimClusterUtilization = victimClusterUtilization;
      this.hostAttributes = requireNonNull(hostAttributes);
      this.tasks = requireNonNull(tasks);
    }
  
    /**
     * Gets the cluster utilization factor specifying what percentage of hosts in the cluster
     * already have a job instance assigned to them.
     *
     * @return Cluster utilization (default: 0.25).
     */
    double getSiblingClusterUtilization() {
      return siblingClusterUtilization;
    }
  
    /**
     * Gets the cluster utilization factor specifying what percentage of hosts in the cluster
     * already have a foreign (different role) preemptible job instance assigned to them.
     *
     * @return Cluster utilization (default: 0.25).
     */
    double getVictimClusterUtilization() {
      return victimClusterUtilization;
    }
  
    /**
     * Gets a set of cluster host attributes.
     *
     * @return Set of {@link IHostAttributes}.
     */
    Set<IHostAttributes> getHostAttributes() {
      return hostAttributes;
    }
  
    /**
     * Gets a benchmark task.
     *
     * @return Task to run a benchmark for.
     */
    Set<IScheduledTask> getTasks() {
      return tasks;
    }
  
    static class Builder {
      private double siblingClusterUtilization = 0.25;
      private double victimClusterUtilization = 0.25;
      private Set<IHostAttributes> hostAttributes;
      private Set<IScheduledTask> tasks;
  
      Builder setSiblingClusterUtilization(double newClusterUtilization) {
        siblingClusterUtilization = newClusterUtilization;
        return this;
      }
  
      Builder setVictimClusterUtilization(double newClusterUtilization) {
        victimClusterUtilization = newClusterUtilization;
        return this;
      }
  
      Builder setHostAttributes(Set<IHostAttributes> newHostAttributes) {
        hostAttributes = newHostAttributes;
        return this;
      }
  
      Builder setTasks(Set<IScheduledTask> newTasks) {
        tasks = newTasks;
        return this;
      }
  
      BenchmarkSettings build() {
        return new BenchmarkSettings(
            siblingClusterUtilization,
            victimClusterUtilization,
            hostAttributes,
            tasks);
      }
    }
  }
  