| package backtype.storm.testing; |
| |
| 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 java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.UUID; |
| |
| |
| public class TupleCaptureBolt implements IRichBolt { |
| public static transient Map<String, Map<String, List<FixedTuple>>> emitted_tuples = new HashMap<String, Map<String, List<FixedTuple>>>(); |
| |
| private String _name; |
| private OutputCollector _collector; |
| |
| public TupleCaptureBolt() { |
| _name = UUID.randomUUID().toString(); |
| emitted_tuples.put(_name, new HashMap<String, List<FixedTuple>>()); |
| } |
| |
| public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) { |
| _collector = collector; |
| } |
| |
| public void execute(Tuple input) { |
| String component = input.getSourceComponent(); |
| Map<String, List<FixedTuple>> captured = emitted_tuples.get(_name); |
| if(!captured.containsKey(component)) { |
| captured.put(component, new ArrayList<FixedTuple>()); |
| } |
| captured.get(component).add(new FixedTuple(input.getSourceStreamId(), input.getValues())); |
| _collector.ack(input); |
| } |
| |
| public Map<String, List<FixedTuple>> getResults() { |
| return emitted_tuples.get(_name); |
| } |
| |
| public void cleanup() { |
| } |
| |
| public Map<String, List<FixedTuple>> getAndRemoveResults() { |
| return emitted_tuples.remove(_name); |
| } |
| |
| public Map<String, List<FixedTuple>> getAndClearResults() { |
| Map<String, List<FixedTuple>> ret = new HashMap<String, List<FixedTuple>>(emitted_tuples.get(_name)); |
| emitted_tuples.get(_name).clear(); |
| return ret; |
| } |
| |
| @Override |
| public void declareOutputFields(OutputFieldsDeclarer declarer) { |
| } |
| |
| @Override |
| public Map<String, Object> getComponentConfiguration() { |
| return null; |
| } |
| |
| } |