| /** |
| * 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.storm.hooks; |
| |
| import java.io.Serializable; |
| import java.util.Map; |
| import org.apache.storm.task.WorkerTopologyContext; |
| |
| /** |
| * A BaseWorkerHook is a noop implementation of IWorkerHook. You may extends this class and implement any and/or all |
| * methods you need for your workers. |
| */ |
| public class BaseWorkerHook implements IWorkerHook, Serializable { |
| private static final long serialVersionUID = 2589466485198339529L; |
| |
| /** |
| * This method is called when a worker is started. |
| * |
| * @param topoConf The Storm configuration for this worker |
| * @param context This object can be used to get information about this worker's place within the topology |
| */ |
| @Override |
| public void start(Map<String, Object> topoConf, WorkerTopologyContext context) { |
| // NOOP |
| } |
| |
| /** |
| * This method is called right before a worker shuts down. |
| */ |
| @Override |
| public void shutdown() { |
| // NOOP |
| } |
| } |