_log.info("Started connecting to cluster: {} ...", node);
_log.debug("Adding contact point...");
clusterBuilder = clusterBuilder.addContactPoint(node);
if (username != null && password != null) {
_log.debug("Adding credentials...");
clusterBuilder = clusterBuilder.withCredentials(username,
password);
}
_log.debug("Building cluster...");
_cluster = clusterBuilder.build();
_log.info("Finished connecting to cluster: {} .", node);