io.druid.indexing.overlord.autoscaling.ResourceManagementSchedulerFactoryImpl Maven / Gradle / Ivy

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/*
 * Druid - a distributed column store.
 * Copyright 2012 - 2015 Metamarkets Group Inc.
 *
 * 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 io.druid.indexing.overlord.autoscaling;

import com.google.inject.Inject;
import com.metamx.common.concurrent.ScheduledExecutorFactory;
import io.druid.indexing.overlord.RemoteTaskRunner;

/**
 */
public class ResourceManagementSchedulerFactoryImpl implements ResourceManagementSchedulerFactory
{
  private final ResourceManagementSchedulerConfig config;
  private final ResourceManagementStrategy strategy;

  @Inject
  public ResourceManagementSchedulerFactoryImpl(
      ResourceManagementStrategy strategy,
      ResourceManagementSchedulerConfig config,
      ScheduledExecutorFactory executorFactory
  )
  {
    this.config = config;
    this.strategy = strategy;
  }

  @Override
  public ResourceManagementScheduler build(RemoteTaskRunner runner, ScheduledExecutorFactory executorFactory)
  {
    if (config.isDoAutoscale()) {
      return new ResourceManagementScheduler(runner, strategy, config, executorFactory.create(1, "ScalingExec--%d"));
    }
    else {
      return new NoopResourceManagementScheduler();
    }
  }
}