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 com.alipay.dw.jstorm.example.tm;
  
  import java.util.Collection;
  
  import backtype.storm.task.OutputCollector;
  import backtype.storm.task.TopologyContext;
  import backtype.storm.tuple.Tuple;
  
  import com.alibaba.jstorm.task.master.TMHandler;
  import com.alibaba.jstorm.task.master.TopologyMaster;
  import com.alibaba.jstorm.task.master.TopologyMasterContext;
  
  public class TMUdfHandler implements TMHandler {
      public static class TMUdfMessage {
          public int spoutTaskId;
  
          public TMUdfMessage(int taskId) {
              this.spoutTaskId = taskId;
          }
      }
  
      Collection<Integer> boltTasks;
      OutputCollector collector;
  
      @Override
      public void init(TopologyMasterContext tmContext) {
          TopologyContext context = tmContext.getContext();
          boltTasks = context.getComponentTasks("TMUdfBolt");
          collector = tmContext.getCollector();
      }
  
      @Override
      public void process(Object event) throws Exception {
          Tuple tuple = (Tuple) event;
          for (int boltTaskId : boltTasks) {
              collector.emitDirectCtrl(boltTaskId, TopologyMaster.USER_DEFINED_STREAM, tuple.getValues());
          }
      }
  
      @Override
      public void cleanup() {
          
      }
      
  }