| /* |
| * 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.samza.runtime; |
| |
| import org.apache.samza.application.ApplicationUtil; |
| import org.apache.samza.config.Config; |
| import org.apache.samza.util.ConfigUtil; |
| |
| |
| /** |
| * Util class to create {@link ApplicationRunner} from the configuration and run the application |
| */ |
| public class ApplicationRunnerUtil { |
| |
| /** |
| * This method rewrites the passed in config, creates the {@link ApplicationRunner} from the rewritten config and |
| * invokes the appropriate operation on the runner based on the specified {@link ApplicationRunnerOperation}. |
| * It returns the runner so that the caller could get the status of application on STATUS op. |
| * |
| * @param originalConfig the original configuration of the application |
| * @param op the {@link ApplicationRunnerOperation} that needs to be performed on the Application. |
| * @return the {@link ApplicationRunner} object. |
| */ |
| public static ApplicationRunner invoke(Config originalConfig, ApplicationRunnerOperation op) { |
| Config config = ConfigUtil.rewriteConfig(originalConfig); |
| |
| ApplicationRunner appRunner = |
| ApplicationRunners.getApplicationRunner(ApplicationUtil.fromConfig(config), config); |
| |
| switch (op) { |
| case RUN: |
| appRunner.run(null); |
| break; |
| case KILL: |
| appRunner.kill(); |
| break; |
| case STATUS: |
| System.out.println(appRunner.status()); |
| break; |
| default: |
| throw new IllegalArgumentException("Unrecognized operation: " + op); |
| } |
| return appRunner; |
| } |
| } |