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.hellohttp;
020
021import org.apache.reef.client.DriverConfiguration;
022import org.apache.reef.client.DriverLauncher;
023import org.apache.reef.client.DriverServiceConfiguration;
024import org.apache.reef.client.LauncherStatus;
025import org.apache.reef.runtime.local.client.LocalRuntimeConfiguration;
026import org.apache.reef.tang.Configuration;
027import org.apache.reef.tang.Configurations;
028import org.apache.reef.tang.exceptions.BindException;
029import org.apache.reef.tang.exceptions.InjectionException;
030import org.apache.reef.util.EnvironmentUtils;
031import org.apache.reef.webserver.HttpHandlerConfiguration;
032import org.apache.reef.webserver.HttpServerReefEventHandler;
033import org.apache.reef.webserver.ReefEventStateManager;
034
035import java.util.logging.Logger;
036
037/**
038 * Example to run HelloREEF with a webserver.
039 */
040public final class HelloREEFHttp {
041  /**
042   * Number of milliseconds to wait for the job to complete.
043   */
044  public static final int JOB_TIMEOUT = 60 * 1000; // 60 sec.
045  private static final Logger LOG = Logger.getLogger(HelloREEFHttp.class.getName());
046
047  /**
048   * @return the driver-side configuration to be merged into the DriverConfiguration to enable the HTTP server.
049   */
050  public static Configuration getHTTPConfiguration() {
051    final Configuration httpHandlerConfiguration = HttpHandlerConfiguration.CONF
052        .set(HttpHandlerConfiguration.HTTP_HANDLERS, HttpServerReefEventHandler.class)
053        .set(HttpHandlerConfiguration.HTTP_HANDLERS, HttpServerShellCmdtHandler.class)
054        .build();
055    final Configuration driverConfigurationForHttpServer = DriverServiceConfiguration.CONF
056        .set(DriverServiceConfiguration.ON_EVALUATOR_ALLOCATED, ReefEventStateManager.AllocatedEvaluatorStateHandler.class)
057        .set(DriverServiceConfiguration.ON_CONTEXT_ACTIVE, ReefEventStateManager.ActiveContextStateHandler.class)
058        .set(DriverServiceConfiguration.ON_TASK_RUNNING, ReefEventStateManager.TaskRunningStateHandler.class)
059        .set(DriverServiceConfiguration.ON_DRIVER_STARTED, ReefEventStateManager.StartStateHandler.class)
060        .set(DriverServiceConfiguration.ON_DRIVER_STOP, ReefEventStateManager.StopStateHandler.class)
061        .build();
062    return Configurations.merge(httpHandlerConfiguration, driverConfigurationForHttpServer);
063  }
064
065  /**
066   * @return the configuration of the HelloREEF driver.
067   */
068  public static Configuration getDriverConfiguration() {
069    return DriverConfiguration.CONF
070        .set(DriverConfiguration.GLOBAL_LIBRARIES, EnvironmentUtils.getClassLocation(HttpShellJobDriver.class))
071        .set(DriverConfiguration.DRIVER_IDENTIFIER, "HelloHTTP")
072        .set(DriverConfiguration.ON_DRIVER_STARTED, HttpShellJobDriver.StartHandler.class)
073        .set(DriverConfiguration.ON_EVALUATOR_ALLOCATED, HttpShellJobDriver.AllocatedEvaluatorHandler.class)
074        .set(DriverConfiguration.ON_EVALUATOR_FAILED, HttpShellJobDriver.FailedEvaluatorHandler.class)
075        .set(DriverConfiguration.ON_CONTEXT_ACTIVE, HttpShellJobDriver.ActiveContextHandler.class)
076        .set(DriverConfiguration.ON_CONTEXT_CLOSED, HttpShellJobDriver.ClosedContextHandler.class)
077        .set(DriverConfiguration.ON_CONTEXT_FAILED, HttpShellJobDriver.FailedContextHandler.class)
078        .set(DriverConfiguration.ON_TASK_COMPLETED, HttpShellJobDriver.CompletedTaskHandler.class)
079        .set(DriverConfiguration.ON_CLIENT_MESSAGE, HttpShellJobDriver.ClientMessageHandler.class)
080        .set(DriverConfiguration.ON_CLIENT_CLOSED, HttpShellJobDriver.HttpClientCloseHandler.class)
081        .set(DriverConfiguration.ON_DRIVER_STOP, HttpShellJobDriver.StopHandler.class)
082        .build();
083  }
084
085  /**
086   * Run Hello Reef with merged configuration
087   *
088   * @param runtimeConf
089   * @param timeOut
090   * @return
091   * @throws BindException
092   * @throws InjectionException
093   */
094  public static LauncherStatus runHelloReef(final Configuration runtimeConf, final int timeOut)
095      throws BindException, InjectionException {
096    final Configuration driverConf = Configurations.merge(HelloREEFHttp.getDriverConfiguration(), getHTTPConfiguration());
097    return DriverLauncher.getLauncher(runtimeConf).run(driverConf, timeOut);
098  }
099
100  /**
101   * main program
102   *
103   * @param args
104   * @throws InjectionException
105   */
106  public static void main(final String[] args) throws InjectionException {
107    final Configuration runtimeConfiguration = LocalRuntimeConfiguration.CONF
108        .set(LocalRuntimeConfiguration.NUMBER_OF_THREADS, 3)
109        .build();
110    final LauncherStatus status = runHelloReef(runtimeConfiguration, HelloREEFHttp.JOB_TIMEOUT);
111  }
112}