| /** |
| * 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.task; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.atomic.AtomicReference; |
| import org.apache.storm.generated.NodeInfo; |
| import org.apache.storm.generated.StormTopology; |
| import org.apache.storm.tuple.Fields; |
| |
| public class WorkerTopologyContext extends GeneralTopologyContext { |
| public static final String SHARED_EXECUTOR = "executor"; |
| Map<String, Object> userResources; |
| Map<String, Object> defaultResources; |
| private Integer workerPort; |
| private List<Integer> workerTasks; |
| private String codeDir; |
| private String pidDir; |
| private AtomicReference<Map<Integer, NodeInfo>> taskToNodePort; |
| private String assignmentId; |
| |
| public WorkerTopologyContext( |
| StormTopology topology, |
| Map<String, Object> topoConf, |
| Map<Integer, String> taskToComponent, |
| Map<String, List<Integer>> componentToSortedTasks, |
| Map<String, Map<String, Fields>> componentToStreamToFields, |
| String stormId, |
| String codeDir, |
| String pidDir, |
| Integer workerPort, |
| List<Integer> workerTasks, |
| Map<String, Object> defaultResources, |
| Map<String, Object> userResources, |
| AtomicReference<Map<Integer, NodeInfo>> taskToNodePort, |
| String assignmentId |
| ) { |
| super(topology, topoConf, taskToComponent, componentToSortedTasks, componentToStreamToFields, stormId); |
| this.codeDir = codeDir; |
| this.defaultResources = defaultResources; |
| this.userResources = userResources; |
| try { |
| if (pidDir != null) { |
| this.pidDir = new File(pidDir).getCanonicalPath(); |
| } else { |
| this.pidDir = null; |
| } |
| } catch (IOException e) { |
| throw new RuntimeException("Could not get canonical path for " + this.pidDir, e); |
| } |
| this.workerPort = workerPort; |
| this.workerTasks = workerTasks; |
| this.taskToNodePort = taskToNodePort; |
| this.assignmentId = assignmentId; |
| |
| } |
| |
| public WorkerTopologyContext( |
| StormTopology topology, |
| Map<String, Object> topoConf, |
| Map<Integer, String> taskToComponent, |
| Map<String, List<Integer>> componentToSortedTasks, |
| Map<String, Map<String, Fields>> componentToStreamToFields, |
| String stormId, |
| String codeDir, |
| String pidDir, |
| Integer workerPort, |
| List<Integer> workerTasks, |
| Map<String, Object> defaultResources, |
| Map<String, Object> userResources) { |
| this(topology, topoConf, taskToComponent, componentToSortedTasks, componentToStreamToFields, stormId, |
| codeDir, pidDir, workerPort, workerTasks, defaultResources, userResources, null, null); |
| } |
| |
| /** |
| * Gets all the task ids that are running in this worker process (including the task for this task). |
| */ |
| public List<Integer> getThisWorkerTasks() { |
| return workerTasks; |
| } |
| |
| public Integer getThisWorkerPort() { |
| return workerPort; |
| } |
| |
| public String getThisWorkerHost() { |
| return assignmentId; |
| } |
| |
| /** |
| * Get a map from task Id to NodePort. |
| * |
| * @return a map from task To NodePort |
| */ |
| public AtomicReference<Map<Integer, NodeInfo>> getTaskToNodePort() { |
| return taskToNodePort; |
| } |
| |
| /** |
| * Gets the location of the external resources for this worker on the local filesystem. These external resources typically include bolts |
| * implemented in other languages, such as Ruby or Python. |
| */ |
| public String getCodeDir() { |
| return codeDir; |
| } |
| |
| /** |
| * If this task spawns any subprocesses, those subprocesses must immediately write their PID to this directory on the local filesystem |
| * to ensure that Storm properly destroys that process when the worker is shutdown. |
| */ |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public String getPIDDir() { |
| return pidDir; |
| } |
| |
| public Object getResource(String name) { |
| return userResources.get(name); |
| } |
| |
| public ExecutorService getSharedExecutor() { |
| return (ExecutorService) defaultResources.get(SHARED_EXECUTOR); |
| } |
| } |