| /** |
| * 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.apex.api; |
| |
| import org.apache.hadoop.conf.Configuration; |
| |
| import com.datatorrent.api.Attribute; |
| import com.datatorrent.api.StreamingApplication; |
| import com.datatorrent.api.StringCodec; |
| |
| /** |
| * Launcher for running the application on Hadoop YARN. For basic operations such as launching or stopping the |
| * application, {@link Launcher} can be used directly. |
| * |
| * @since 3.5.0 |
| */ |
| public abstract class YarnAppLauncher<H extends YarnAppLauncher.YarnAppHandle> extends Launcher<H> |
| { |
| |
| /** |
| * Parameter to specify extra jars for launch. |
| */ |
| public static final Attribute<String> LIB_JARS = new Attribute<>(new StringCodec.String2String()); |
| |
| /** |
| * Parameter to specify the previous application id to use to resume launch from. |
| */ |
| public static final Attribute<String> ORIGINAL_APP_ID = new Attribute<>(new StringCodec.String2String()); |
| |
| /** |
| * Parameter to specify the queue name to use for launch. |
| */ |
| public static final Attribute<String> QUEUE_NAME = new Attribute<>(new StringCodec.String2String()); |
| |
| static { |
| Attribute.AttributeMap.AttributeInitializer.initialize(YarnAppLauncher.class); |
| } |
| |
| public static YarnAppLauncher newInstance() |
| { |
| return loadService(YarnAppLauncher.class); |
| } |
| |
| public interface YarnAppHandle extends AppHandle |
| { |
| String getApplicationId(); |
| } |
| |
| /** |
| * Shortcut to run an application with the modified configuration. |
| * |
| * @param app - Application to be run |
| * @param configuration - Application Configuration |
| */ |
| public static void runApp(StreamingApplication app, Configuration configuration) throws LauncherException |
| { |
| runApp(app, configuration, null); |
| } |
| |
| /** |
| * Shortcut to run an application with the modified configuration. |
| * |
| * @param app - Application to be run |
| * @param configuration - Application Configuration |
| * @param launchAttributes - Launch Configuration |
| */ |
| public static void runApp(StreamingApplication app, Configuration configuration, Attribute.AttributeMap launchAttributes) throws LauncherException |
| |
| { |
| YarnAppLauncher launcher = newInstance(); |
| launcher.launchApp(app, configuration, launchAttributes); |
| } |
| |
| } |