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.task.execute.spout;
  
  import com.alibaba.jstorm.daemon.worker.JStormDebugger;
  import com.alibaba.jstorm.metric.JStormMetrics;
  import java.util.List;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import backtype.storm.spout.ISpout;
  import backtype.storm.tuple.Tuple;
  import backtype.storm.tuple.TupleExt;
  
  import com.alibaba.jstorm.client.spout.IAckValueSpout;
  import com.alibaba.jstorm.task.TaskBaseMetric;
  import com.alibaba.jstorm.task.comm.TupleInfo;
  
  /**
   * Called after spout receives an ack tuple
   *
   * @author yannian/Longda
   */
  public class AckSpoutMsg implements IAckMsg {
      private static Logger LOG = LoggerFactory.getLogger(AckSpoutMsg.class);
  
      private Object id;
      private ISpout spout;
      private Tuple tuple;
      private TupleInfo tupleInfo;
      private Object msgId;
      private String stream;
      private List<Object> values;
      private TaskBaseMetric taskStats;
  
      public AckSpoutMsg(Object id, ISpout _spout, Tuple tuple, TupleInfo tupleInfo, TaskBaseMetric _task_stats) {
          this.id = id;
          this.taskStats = _task_stats;
          this.spout = _spout;
          this.msgId = tupleInfo.getMessageId();
          this.stream = tupleInfo.getStream();
          this.values = tupleInfo.getValues();
          this.tuple = tuple;
          this.tupleInfo = tupleInfo;
      }
  
      public void run() {
          if (JStormDebugger.isDebug(id)) {
              LOG.info("Acking message rootId:{}, messageId:{}", id, msgId);
          }
  
          if (spout instanceof IAckValueSpout) {
              IAckValueSpout ackValueSpout = (IAckValueSpout) spout;
              ackValueSpout.ack(msgId, values);
          } else {
              spout.ack(msgId);
          }
  
          long latencyStart = tupleInfo.getTimestamp(), lifeCycleStart = 0;
          if (latencyStart != 0 && JStormMetrics.enabled) {
              long endTime = System.currentTimeMillis();
              if (tuple != null && tuple instanceof TupleExt) {
                  lifeCycleStart = ((TupleExt) tuple).getCreationTimeStamp();
              }
              taskStats.spout_acked_tuple(stream, latencyStart, lifeCycleStart, endTime);
          }
      }
  }
  