| package backtype.storm.testing; |
| |
| import backtype.storm.task.OutputCollector; |
| import backtype.storm.topology.OutputFieldsDeclarer; |
| import backtype.storm.tuple.Tuple; |
| import backtype.storm.tuple.Fields; |
| import java.util.Map; |
| import backtype.storm.task.TopologyContext; |
| import backtype.storm.topology.IRichBolt; |
| import org.apache.log4j.Logger; |
| import static backtype.storm.utils.Utils.tuple; |
| |
| |
| public class TestGlobalCount implements IRichBolt { |
| public static Logger LOG = Logger.getLogger(TestWordCounter.class); |
| |
| private int _count; |
| OutputCollector _collector; |
| |
| public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) { |
| _collector = collector; |
| _count = 0; |
| } |
| |
| public void execute(Tuple input) { |
| _count++; |
| _collector.emit(tuple(_count)); |
| _collector.ack(input); |
| } |
| |
| public void cleanup() { |
| |
| } |
| |
| public Fields getOutputFields() { |
| return new Fields("global-count"); |
| } |
| |
| public void declareOutputFields(OutputFieldsDeclarer declarer) { |
| declarer.declare(new Fields("global-count")); |
| } |
| } |