/** * 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.jstorm.example.unittests.tick; import backtype.storm.task.OutputCollector; import backtype.storm.task.TopologyContext; import backtype.storm.topology.IRichBolt; import backtype.storm.topology.OutputFieldsDeclarer; import backtype.storm.tuple.Tuple; import backtype.storm.utils.TupleHelpers; import com.alibaba.jstorm.common.metric.AsmCounter; import com.alibaba.jstorm.common.metric.AsmMeter; import com.alibaba.jstorm.metric.MetricClient; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.util.Map; /** * @author binyang.dby on 2016/7/21. */ public class TickTupleTestBolt implements IRichBolt{ private Logger LOG = LoggerFactory.getLogger(TickTupleTestBolt.class); private MetricClient metricClient; private AsmCounter nonTickCounter; private AsmMeter tickMeter; private long lastMills = 0; @Override public void prepare(Map map, TopologyContext topologyContext, OutputCollector outputCollector) { this.metricClient = new MetricClient(topologyContext); this.nonTickCounter = metricClient.registerCounter("TickTupleTest.NonTickCounter"); this.tickMeter = metricClient.registerMeter("TickTupleTest.TickMeter"); } @Override public void execute(Tuple tuple) { if(TupleHelpers.isTickTuple(tuple)) { LOG.info("Tick! Seconds from last receive = " + (System.currentTimeMillis() - lastMills)/1000f); lastMills = System.currentTimeMillis(); tickMeter.mark(); } else nonTickCounter.inc(); } @Override public void cleanup() { } @Override public void declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer) { } @Override public Map<String, Object> getComponentConfiguration() { return null; } }