content: /**
   * 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 backtype.storm.task;
  
  import backtype.storm.generated.StormTopology;
  import backtype.storm.tuple.Fields;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.ExecutorService;
  
  import com.alibaba.jstorm.cluster.StormConfig;
  
  public class WorkerTopologyContext extends GeneralTopologyContext {
      public static final String SHARED_EXECUTOR = "executor";
  
      private Integer _workerPort;
      private List<Integer> _workerTasks;
      private String _codeDir;
      private String _workerIdDir;
      private String _pidDir;
      Map<String, Object> _userResources;
      Map<String, Object> _defaultResources;
  
      public WorkerTopologyContext(StormTopology topology, Map stormConf, Map<Integer, String> taskToComponent,
                                   Map<String, List<Integer>> componentToSortedTasks,
                                   Map<String, Map<String, Fields>> componentToStreamToFields, String stormId, String codeDir,
                                   String workerId, Integer workerPort, List<Integer> workerTasks,
                                   Map<String, Object> defaultResources, Map<String, Object> userResources) {
          super(topology, stormConf, taskToComponent, componentToSortedTasks, componentToStreamToFields, stormId);
          _codeDir = codeDir;
          _defaultResources = defaultResources;
          _userResources = userResources;
          try {
              if (workerId != null) {
                  _workerIdDir = new File(StormConfig.worker_root(stormConf, workerId)).getCanonicalPath();
                  _pidDir = new File(StormConfig.worker_pids_root(stormConf, workerId)).getCanonicalPath();
              } else {
                  _pidDir = null;
              }
          } catch (IOException e) {
              throw new RuntimeException("Could not get canonical path for " + _pidDir, e);
          }
          _workerPort = workerPort;
          _workerTasks = workerTasks;
      }
  
      /**
       * 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 void setThisWorkerTasks(List<Integer> workerTasks) {
          this._workerTasks = workerTasks;
      }
  
      /**
       * 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.
       */
      public String getPIDDir() {
          return _pidDir;
      }
  
      public String getWorkerIdDir() {
          return _workerIdDir;
      }
  
      public Object getResource(String name) {
          return _userResources.get(name);
      }
  
      public ExecutorService getSharedExecutor() {
          return (ExecutorService) _defaultResources.get(SHARED_EXECUTOR);
      }
  }
  