branch-2.0.4-alpha/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/event/ContainerLocalizationRequestEvent.java

/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you 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.hadoop.yarn.server.nodemanager.containermanager.localizer.event;

import java.util.Collection;
import java.util.Map;

import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalResourceRequest;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService;

/**
 * Event that requests that the {@link ResourceLocalizationService} localize
 * a set of resources for the given container. This is generated by
 * {@link ContainerImpl} during container initialization.
 */
public class ContainerLocalizationRequestEvent extends
    ContainerLocalizationEvent {

  private final Map<LocalResourceVisibility, Collection<LocalResourceRequest>> 
    rsrc;

  /**
   * Event requesting the localization of the rsrc.
   * @param c
   * @param rsrc
   */
  public ContainerLocalizationRequestEvent(Container c,
      Map<LocalResourceVisibility, Collection<LocalResourceRequest>> rsrc) {
    super(LocalizationEventType.INIT_CONTAINER_RESOURCES, c);
    this.rsrc = rsrc;
  }

  public
      Map<LocalResourceVisibility, Collection<LocalResourceRequest>>
      getRequestedResources() {
    return rsrc;
  }
}