Source code

001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.runtime.yarn.driver;
020
021import org.apache.reef.runtime.common.driver.api.ResourceReleaseEvent;
022import org.apache.reef.runtime.common.driver.api.ResourceReleaseHandler;
023import org.apache.reef.tang.InjectionFuture;
024
025import javax.inject.Inject;
026import java.util.logging.Level;
027import java.util.logging.Logger;
028
029/**
030 * ResourceReleaseHandler for YARN.
031 */
032public final class YARNResourceReleaseHandler implements ResourceReleaseHandler {
033
034  private static final Logger LOG = Logger.getLogger(YARNResourceReleaseHandler.class.getName());
035
036  private final InjectionFuture<YarnContainerManager> yarnContainerManager;
037
038  @Inject
039  YARNResourceReleaseHandler(final InjectionFuture<YarnContainerManager> yarnContainerManager) {
040    this.yarnContainerManager = yarnContainerManager;
041    LOG.log(Level.FINE, "Instantiated 'YARNResourceReleaseHandler'");
042  }
043
044  @Override
045  public void onNext(final ResourceReleaseEvent resourceReleaseEvent) {
046    final String containerId = resourceReleaseEvent.getIdentifier();
047    LOG.log(Level.FINEST, "Releasing container {0}", containerId);
048    this.yarnContainerManager.get().release(containerId);
049  }
050}