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.alibaba.jstorm.daemon.worker.timer;
  
  import java.util.Map;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import backtype.storm.Config;
  import backtype.storm.utils.DisruptorQueue;
  
  import com.alibaba.jstorm.task.acker.Acker;
  import com.alibaba.jstorm.utils.JStormUtils;
  
  public class RotatingMapTrigger extends TimerTrigger {
      private static final Logger LOG = LoggerFactory.getLogger(RotatingMapTrigger.class);
  
      public RotatingMapTrigger(Map conf, String name, DisruptorQueue queue) {
          this.name = name;
          this.queue = queue;
          this.opCode = TimerConstants.ROTATING_MAP;
  
          int msgTimeOut = JStormUtils.parseInt(conf.get(Config.TOPOLOGY_MESSAGE_TIMEOUT_SECS), 30);
          frequency = (msgTimeOut) / (Acker.TIMEOUT_BUCKET_NUM - 1);
          if (frequency <= 0) {
              frequency = 1;
          }
  
          firstTime = JStormUtils.parseInt(conf.get(Config.SUPERVISOR_WORKER_START_TIMEOUT_SECS), 120);
          firstTime += frequency;
      }
  
      @Override
      public void updateObject() {
          this.object = new Tick(name);
      }
  
      // Actually RotatingMapTrigger can use TickTuple,
      // which sets the stream id is ROTATINGMAP_STREAMID
      // But in order to improve performance, JStorm use RotatingMapTrigger.Tick
      public static class Tick {
          private final long time;
          private final String name;
  
          public Tick(String name) {
              this.name = name;
              time = System.currentTimeMillis();
          }
  
          public long getTime() {
              return time;
          }
  
          public String getName() {
              return name;
          }
      }
  }
  