/**
* Creates a new Cluster based on the specified configuration.
*
* @param stormConf the storm configuration.
* @return a new a new {@link Cluster} instance.
*/
@Override
protected Cluster make(Map<String, Object> stormConf) {
CassandraConf cassandraConf = new CassandraConf(stormConf);
Cluster.Builder cluster =
Cluster.builder()
.withoutJMXReporting()
.withoutMetrics()
.addContactPoints(cassandraConf.getNodes())
.withPort(cassandraConf.getPort())
.withRetryPolicy(DowngradingConsistencyRetryPolicy.INSTANCE)
.withReconnectionPolicy(
new ExponentialReconnectionPolicy(100L, TimeUnit.MINUTES.toMillis(1)))
.withLoadBalancingPolicy(new TokenAwarePolicy(new RoundRobinPolicy()));
final String username = cassandraConf.getUsername();
final String password = cassandraConf.getPassword();
if (StringUtils.isNotEmpty(username) && StringUtils.isNotEmpty(password)) {
cluster.withAuthProvider(new PlainTextAuthProvider(username, password));
}
QueryOptions options =
new QueryOptions().setConsistencyLevel(cassandraConf.getConsistencyLevel());
cluster.withQueryOptions(options);
return cluster.build();
}
