public static void handleClusterTerminatedEvent(ClusterStatusClusterTerminatedEvent event) {
TopologyManager.acquireWriteLock();
try {
Topology topology = TopologyManager.getTopology();
Service service = topology.getService(event.getServiceName());
// update the status of the cluster
if (service == null) {
log.warn(String.format("Service %s does not exist", event.getServiceName()));
return;
}
Cluster cluster = service.getCluster(event.getClusterId());
if (cluster == null) {
log.warn(String.format("Cluster %s does not exist", event.getClusterId()));
return;
}
ClusterInstance context = cluster.getInstanceContexts(event.getInstanceId());
if (context == null) {
log.warn(
"Cluster Instance Context is not found for [cluster] "
+ event.getClusterId()
+ " [instance-id] "
+ event.getInstanceId());
return;
}
ClusterStatus status = ClusterStatus.Terminated;
if (context.isStateTransitionValid(status)) {
context.setStatus(status);
log.info(
"Cluster Terminated adding status started for and removing the cluster instance"
+ cluster.getClusterId());
cluster.removeInstanceContext(event.getInstanceId());
TopologyManager.updateTopology(topology);
// publishing data
ClusterInstanceTerminatedEvent clusterTerminatedEvent =
new ClusterInstanceTerminatedEvent(
event.getAppId(),
event.getServiceName(),
event.getClusterId(),
event.getInstanceId());
TopologyEventPublisher.sendClusterTerminatedEvent(clusterTerminatedEvent);
} else {
log.error(
String.format(
"Cluster state transition is not valid: [cluster-id] %s "
+ " [instance-id] %s [current-status] %s [status-requested] %s",
event.getClusterId(), event.getInstanceId(), context.getStatus(), status));
return;
}
} finally {
TopologyManager.releaseWriteLock();
}
}
