public void init(String kafkaServers, String dbServers, boolean restart) throws Exception {
logger.info("connecting to cassandra");
conn = new CassandraConn();
conn.connect(dbServers);
logger.info("create TweetDao");
tweetDao = new TweetDao(conn);
segDao = new SegStateDao(conn);
logger.info("connecting to kafka");
consumer = new TweetConsumer();
consumer.open(
Arrays.asList(KafkaTopics.RETWEET_TOPIC),
KafkaTopics.RTSERIES_GROUP,
kafkaServers,
restart);
producer = new TweetKafkaProducer(KafkaProducerFactory.createProducer(kafkaServers));
MetricBasedPerfProfile.registerServer(controller);
}
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
PropertyConfigurator.configure("conf/log4j.properties");
// args = new String[] { "-c", "127.0.0.1", "-k", "localhost:9092" };
OptionParser parser = new OptionParser();
parser.accepts("c", "cassandra server address").withRequiredArg().ofType(String.class);
parser.accepts("k", "kafka server address").withRequiredArg().ofType(String.class);
parser.accepts("r", "consume topics from the beginning");
parser
.accepts("g", "server address of ganglia gmond. e.g 10.11.1.212:8649")
.withRequiredArg()
.ofType(String.class);
OptionSet set = parser.parse(args);
if (!set.hasOptions()) {
parser.printHelpOn(new PrintStream(System.out));
System.exit(1);
}
String[] fields = set.valueOf("g").toString().split(":");
MetricBasedPerfProfile.reportForGanglia(fields[0], Short.parseShort(fields[1].trim()));
TimeSeriesProducer producer = new TimeSeriesProducer();
producer.init(set.valueOf("k").toString(), set.valueOf("c").toString().trim(), set.has("r"));
producer.start();
}