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RaterBolt.java
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RaterBolt.java
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package examples.storm;
import backtype.storm.task.TopologyContext;
import backtype.storm.topology.BasicOutputCollector;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.base.BaseBasicBolt;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Tuple;
import backtype.storm.tuple.Values;
import examples.data.Cdr;
import examples.data.Rater;
import java.util.Map;
public class RaterBolt extends BaseBasicBolt {
private Rater rater;
public RaterBolt() {
}
@Override
public void prepare(Map stormConf, TopologyContext context) {
super.prepare(stormConf, context);
rater = new Rater();
}
@Override
public void execute(Tuple tuple, BasicOutputCollector basicOutputCollector) {
Cdr cdr = (Cdr) tuple.getValue(0);
cdr.setPrice(rater.calculate(cdr.getClientId(),
cdr.getCallTime(), cdr.getCallDestination()));
try {
Thread.sleep(cdr.getClientId() * 100);
} catch (InterruptedException e) {}
basicOutputCollector.emit(new Values(cdr));
System.out.println("RATE>> [" + Thread.currentThread().getId() + "]" + cdr);
}
@Override
public void declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer) {
outputFieldsDeclarer.declare(new Fields("cdr"));
}
}