PrinterBolt.java

package org.calrissian.flowbox.bolt;

import backtype.storm.task.OutputCollector;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseRichBolt;
import backtype.storm.tuple.Tuple;

import java.util.Map;


public class PrinterBolt extends BaseRichBolt {

    OutputCollector collector;

    @Override
    public void prepare(Map map, TopologyContext topologyContext, OutputCollector outputCollector) {
        this.collector = outputCollector;
    }

    @Override
    public void execute(Tuple tuple) {
        if(!tuple.getSourceStreamId().equals("tick")) {
            collector.ack(tuple);
            System.out.println("INPUT: " + tuple);
        }
    }

    @Override
    public void declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer) {

    }
}