// Return if topology has not been initialized
if (!topology.isInitialized())
return false;
// Parse complete message and build event
ClusterCreatedEvent event = (ClusterCreatedEvent) Util.jsonToObject(message, ClusterCreatedEvent.class);
// Apply service filter
if (TopologyServiceFilter.getInstance().isActive()) {
if (TopologyServiceFilter.getInstance().serviceNameExcluded(event.getServiceName())) {
// Service is excluded, do not update topology or fire event
if (log.isDebugEnabled()) {
log.debug(String.format("Service is excluded: [service] %s", event.getServiceName()));
}
return false;
}
}
// Apply cluster filter
if (TopologyClusterFilter.getInstance().isActive()) {
if (TopologyClusterFilter.getInstance().clusterIdExcluded(event.getClusterId())) {
// Cluster is excluded, do not update topology or fire event
if (log.isDebugEnabled()) {
log.debug(String.format("Cluster is excluded: [cluster] %s", event.getClusterId()));
}
return false;
}
}
// Validate event properties
Cluster cluster = event.getCluster();
if(cluster == null) {
String msg = "Cluster object of cluster created event is null.";
log.error(msg);
throw new RuntimeException(msg);
}
if (cluster.getHostNames().isEmpty()) {
throw new RuntimeException("Host name/s not found in cluster created event");
}
// Validate event against the existing topology
Service service = topology.getService(event.getServiceName());
if (service == null) {
if (log.isWarnEnabled()) {
log.warn(String.format("Service does not exist: [service] %s",
event.getServiceName()));
}
return false;
}
if (service.clusterExists(event.getClusterId())) {
if (log.isWarnEnabled()) {
log.warn(String.format("Cluster already exists in service: [service] %s [cluster] %s", event.getServiceName(),
event.getClusterId()));
}
} else {
// Apply changes to the topology
service.addCluster(cluster);