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.proto.ReefServiceProtos;
023import org.apache.reef.runtime.common.REEFEnvironment;
024import org.apache.reef.runtime.common.driver.parameters.ClientRemoteIdentifier;
025import org.apache.reef.runtime.common.launch.REEFMessageCodec;
026import org.apache.reef.runtime.local.driver.LocalDriverConfiguration;
027import org.apache.reef.runtime.local.driver.RuntimeIdentifier;
028import org.apache.reef.tang.Configuration;
029import org.apache.reef.tang.Tang;
030import org.apache.reef.tang.exceptions.InjectionException;
031import org.apache.reef.util.EnvironmentUtils;
032import org.apache.reef.wake.remote.RemoteConfiguration;
033
034import java.util.logging.Level;
035import java.util.logging.Logger;
036
037/**
038 * The Client for Hello REEF example running driver and client in the same process.
039 */
040public final class HelloREEFEnvironment {
041
042  private static final Logger LOG = Logger.getLogger(HelloREEFEnvironment.class.getName());
043
044  private static final Configuration DRIVER_CONFIG = DriverConfiguration.CONF
045      .set(DriverConfiguration.DRIVER_IDENTIFIER, "HelloREEF_Env")
046      .set(DriverConfiguration.GLOBAL_LIBRARIES, EnvironmentUtils.getClassLocation(HelloDriver.class))
047      .set(DriverConfiguration.ON_DRIVER_STARTED, HelloDriver.StartHandler.class)
048      .set(DriverConfiguration.ON_EVALUATOR_ALLOCATED, HelloDriver.EvaluatorAllocatedHandler.class)
049      .build();
050
051  private static final Configuration LOCAL_DRIVER_MODULE = LocalDriverConfiguration.CONF
052      .set(LocalDriverConfiguration.RUNTIME_NAMES, RuntimeIdentifier.RUNTIME_NAME)
053      .set(LocalDriverConfiguration.CLIENT_REMOTE_IDENTIFIER, ClientRemoteIdentifier.NONE)
054      .set(LocalDriverConfiguration.JOB_IDENTIFIER, "LOCAL_ENV_DRIVER_TEST")
055      .set(LocalDriverConfiguration.ROOT_FOLDER, "./REEF_LOCAL_RUNTIME")
056      .set(LocalDriverConfiguration.MAX_NUMBER_OF_EVALUATORS, 2)
057      .set(LocalDriverConfiguration.JVM_HEAP_SLACK, 0.0)
058      .build();
059
060  private static final Configuration ENVIRONMENT_CONFIG =
061      Tang.Factory.getTang().newConfigurationBuilder()
062          .bindNamedParameter(RemoteConfiguration.ManagerName.class, "REEF_ENVIRONMENT")
063          .bindNamedParameter(RemoteConfiguration.MessageCodec.class, REEFMessageCodec.class)
064          .build();
065
066  /**
067   * Start Hello REEF job with Driver and Client sharing the same process.
068   *
069   * @param args command line parameters - not used.
070   * @throws InjectionException configuration error.
071   */
072  public static void main(final String[] args) throws InjectionException {
073
074    try (final REEFEnvironment reef = REEFEnvironment.fromConfiguration(
075        LOCAL_DRIVER_MODULE, DRIVER_CONFIG, ENVIRONMENT_CONFIG)) {
076      reef.run();
077      final ReefServiceProtos.JobStatusProto status = reef.getLastStatus();
078      LOG.log(Level.INFO, "REEF job completed: {0}", status);
079    }
080  }
081
082  /**
083   * Empty private constructor to prohibit instantiation of all-static class.
084   */
085  private HelloREEFEnvironment() {
086  }
087}