public static void main(String[] args) throws Exception {
TopologyBuilder builder = new TopologyBuilder();
// ----------type1
/*
builder.setSpout("word", new MyTestWordSpout(), 1);
builder.setSpout("test_signal", new SignalSpout(), 1);
builder.setBolt("exclaim1", new ExclamationBolt(), 6).shuffleGrouping(
"word");
//signals 为SignalSpout的streamId
builder.setBolt("exclaim2", new ExclamationBolt(), 8)
.fieldsGrouping("exclaim1", new Fields("word"))
.allGrouping("test_signal", "signals");
Config conf = new Config();
conf.setDebug(true);
conf.setNumWorkers(5);
*/
// -----------type2
Config conf = new Config();
// topic
conf.put("meta.topic", "test_hotel_count");
conf.setDebug(true);
MetaClientConfig mcc = new MetaClientConfig();
ZKConfig zkConfig = new ZKConfig();
zkConfig.zkConnect = "10.10.100.1:12181";
mcc.setZkConfig(zkConfig);
ConsumerConfig cc = new ConsumerConfig();
cc.setGroup("test_gsj_000652");
Scheme scheme = new StringScheme();
// spout
MetaSpout ms = new MetaSpout(mcc, cc, scheme);
SignalSpout ss = new SignalSpout();
// bolt
ExclamationBolt1 bolt1 = new ExclamationBolt1();
ExclamationBolt2 bolt2 = new ExclamationBolt2();
// builder
builder.setSpout("metaq_test", ms, 1);
builder.setSpout("test_signal", ss, 1);
builder.setBolt("bolt1", bolt1, 6).shuffleGrouping("metaq_test");
// signals 为SignalSpout的streamId
builder
.setBolt("bolt2", bolt2, 1)
.fieldsGrouping("bolt1", new Fields("cat"))
.allGrouping("test_signal", "signals");
if (args != null && args.length > 0) {
// topology 的工作进程数,若worker数量>1，则在某些worker的bolt2中无法收到消息，但是在其他某个特定的worker中可接受到消息，正常处理；
// 是否某个bolt只在某个worker中运行？有待考证
conf.setNumWorkers(1);
StormSubmitter.submitTopology(args[0], conf, builder.createTopology());
} else {
LocalCluster cluster = new LocalCluster();
cluster.submitTopology("test", conf, builder.createTopology());
Utils.sleep(10000000);
cluster.killTopology("test");
cluster.shutdown();
}
}