/** * 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 org.slf4j.Logger; import org.slf4j.LoggerFactory; import backtype.storm.Constants; import backtype.storm.task.TopologyContext; import backtype.storm.tuple.TupleImplExt; import backtype.storm.tuple.Values; import backtype.storm.utils.DisruptorQueue; import com.alibaba.jstorm.utils.TimeUtils; import java.util.concurrent.TimeUnit; public class TickTupleTrigger extends TimerTrigger { private static final Logger LOG = LoggerFactory.getLogger(TickTupleTrigger.class); TopologyContext topologyContext; public TickTupleTrigger(TopologyContext topologyContext, int frequence, String name, DisruptorQueue queue) { this.name = name; this.queue = queue; this.opCode = TimerConstants.TICK_TUPLE; if (frequence <= 0) { LOG.warn(" The frequence of " + name + " is invalid"); frequence = 1000; } this.firstTime = frequence; this.frequence = frequence; this.topologyContext = topologyContext; } @Override public void register() { register(TimeUnit.MILLISECONDS); } @Override public void updateObject() { this.object = new TupleImplExt(topologyContext, new Values(TimeUtils.current_time_secs()), (int) Constants.SYSTEM_TASK_ID, Constants.SYSTEM_TICK_STREAM_ID); } }