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public class SplitSentence implements IBasicBolt {
public void prepare(Map conf, TopologyContext context) {
}
public void execute(Tuple tuple, BasicOutputCollector collector) {
String sentence = tuple.getString(0);
for(String word: sentence.split(" ")) {
collector.emit(new Values(word));
}
}
public void cleanup() {
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("word"));
}
}
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