| package backtype.storm.testing; |
| |
| import backtype.storm.topology.OutputFieldsDeclarer; |
| import java.util.Map; |
| import backtype.storm.spout.SpoutOutputCollector; |
| import backtype.storm.task.TopologyContext; |
| import backtype.storm.topology.base.BaseRichSpout; |
| import backtype.storm.tuple.Fields; |
| import backtype.storm.utils.InprocMessaging; |
| import backtype.storm.utils.Utils; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.UUID; |
| |
| |
| public class FeederSpout extends BaseRichSpout { |
| private int _id; |
| private Fields _outFields; |
| private SpoutOutputCollector _collector; |
| private AckFailDelegate _ackFailDelegate; |
| |
| public FeederSpout(Fields outFields) { |
| _id = InprocMessaging.acquireNewPort(); |
| _outFields = outFields; |
| } |
| |
| public void setAckFailDelegate(AckFailDelegate d) { |
| _ackFailDelegate = d; |
| } |
| |
| public void feed(List<Object> tuple) { |
| InprocMessaging.sendMessage(_id, tuple); |
| } |
| |
| public void open(Map conf, TopologyContext context, SpoutOutputCollector collector) { |
| _collector = collector; |
| } |
| |
| public void close() { |
| |
| } |
| |
| public void nextTuple() { |
| List<Object> tuple = (List<Object>) InprocMessaging.pollMessage(_id); |
| if(tuple!=null) { |
| _collector.emit(tuple, UUID.randomUUID().toString()); |
| } else { |
| Utils.sleep(10); |
| } |
| } |
| |
| public void ack(Object msgId){ |
| if(_ackFailDelegate!=null) { |
| _ackFailDelegate.ack(msgId); |
| } |
| } |
| |
| public void fail(Object msgId){ |
| if(_ackFailDelegate!=null) { |
| _ackFailDelegate.fail(msgId); |
| } |
| } |
| |
| public void declareOutputFields(OutputFieldsDeclarer declarer) { |
| declarer.declare(_outFields); |
| } |
| |
| @Override |
| public Map<String, Object> getComponentConfiguration() { |
| return new HashMap<String, Object>(); |
| } |
| } |