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.examples.hello;
020
021import org.apache.reef.client.DriverConfiguration;
022import org.apache.reef.client.DriverLauncher;
023import org.apache.reef.client.LauncherStatus;
024import org.apache.reef.runtime.yarn.client.YarnClientConfiguration;
025import org.apache.reef.tang.Configuration;
026import org.apache.reef.tang.exceptions.InjectionException;
027
028import java.util.logging.Level;
029import java.util.logging.Logger;
030
031/**
032 * The Client for Hello REEF example.
033 */
034public final class HelloReefYarn {
035
036  private static final Logger LOG = Logger.getLogger(HelloReefYarn.class.getName());
037
038  /**
039   * Number of milliseconds to wait for the job to complete.
040   */
041  private static final int JOB_TIMEOUT = 30000; // 30 sec.
042
043
044  /**
045   * @return the configuration of the HelloREEF driver.
046   */
047  private static Configuration getDriverConfiguration() {
048    return DriverConfiguration.CONF
049        .set(DriverConfiguration.GLOBAL_LIBRARIES, HelloReefYarn.class.getProtectionDomain().getCodeSource().getLocation().getFile())
050        .set(DriverConfiguration.DRIVER_IDENTIFIER, "HelloREEF")
051        .set(DriverConfiguration.ON_DRIVER_STARTED, HelloDriver.StartHandler.class)
052        .set(DriverConfiguration.ON_EVALUATOR_ALLOCATED, HelloDriver.EvaluatorAllocatedHandler.class)
053        .build();
054  }
055
056  /**
057   * Start Hello REEF job. Runs method runHelloReef().
058   *
059   * @param args command line parameters.
060   * @throws org.apache.reef.tang.exceptions.BindException      configuration error.
061   * @throws org.apache.reef.tang.exceptions.InjectionException configuration error.
062   */
063  public static void main(final String[] args) throws InjectionException {
064
065    final LauncherStatus status = DriverLauncher
066        .getLauncher(YarnClientConfiguration.CONF.build())
067        .run(getDriverConfiguration(), JOB_TIMEOUT);
068    LOG.log(Level.INFO, "REEF job completed: {0}", status);
069  }
070}