public static void main(String[] args)
throws InterruptedException, AlreadyAliveException, InvalidTopologyException,
AuthorizationException {
TopologyBuilder builder = new TopologyBuilder();
Properties config = PropertiesUtil.getPropertiesFromClassPath(CONFIG_NAME);
if (args.length >= 1) {
final String topic = args[0];
logger.info("Reading from topic = " + topic);
Broker brokerForPartition0 = new Broker(config.getProperty(BROKER));
GlobalPartitionInformation partitionInfo = new GlobalPartitionInformation();
partitionInfo.addPartition(0, brokerForPartition0);
StaticHosts hosts = new StaticHosts(partitionInfo);
SpoutConfig spoutConfig =
new SpoutConfig(hosts, topic, "/" + topic, UUID.randomUUID().toString());
KafkaSpout kafkaSpout = new KafkaSpout(spoutConfig);
builder.setSpout(KAFKA_SPOUT_READER, kafkaSpout, 1);
builder
.setBolt(KAFKA_AVRO_GROUPPER, new KafkaGrouperBolt(), 4)
.shuffleGrouping(KAFKA_SPOUT_READER);
builder
.setBolt(
KAFKA_AVRO_SENDER,
new KafkaOutBolt()
.withTopicSelector(
new KafkaTopicSelector() {
private static final long serialVersionUID = -9189810246209479112L;
@Override
public String getTopic(Tuple tuple) {
Integer rand = (Integer) tuple.getValueByField(KafkaSenderFields.RANDOM);
return KafkaSenderFields.RANDOM + rand;
}
}),
1)
.fieldsGrouping(KAFKA_AVRO_GROUPPER, new Fields(KafkaSenderFields.RANDOM));
builder.setSpout(
KAFKA_SPOUT_READER_RANDOM1,
new KafkaSpout(
new SpoutConfig(hosts, "random1", "/random1", UUID.randomUUID().toString())),
1);
builder.setSpout(
KAFKA_SPOUT_READER_RANDOM2,
new KafkaSpout(
new SpoutConfig(hosts, "random2", "/random2", UUID.randomUUID().toString())),
1);
builder.setSpout(
KAFKA_SPOUT_READER_RANDOM3,
new KafkaSpout(
new SpoutConfig(hosts, "random3", "/random3", UUID.randomUUID().toString())),
1);
builder
.setBolt(KAFKA_AVRO_CHECKER1, new KafkaCheckerBolt(1), 4)
.shuffleGrouping(KAFKA_SPOUT_READER_RANDOM1);
builder
.setBolt(KAFKA_AVRO_CHECKER2, new KafkaCheckerBolt(2), 4)
.shuffleGrouping(KAFKA_SPOUT_READER_RANDOM2);
builder
.setBolt(KAFKA_AVRO_CHECKER3, new KafkaCheckerBolt(3), 4)
.shuffleGrouping(KAFKA_SPOUT_READER_RANDOM3);
StormTopology kafkaTopology = builder.createTopology();
StormSubmitter.submitTopology(TOPOLOGY_NAME, getConfig(config), kafkaTopology);
} else {
throw new IllegalArgumentException("topic name is required");
}
}
