public DynamicFileHelixManager(
String clusterName,
String instanceName,
InstanceType instanceType,
FilePropertyStore<ZNRecord> store) {
_clusterName = clusterName;
_instanceName = instanceName;
_instanceType = instanceType;
_handlers = new ArrayList<FileCallbackHandler>();
_store = store;
_fileDataAccessor = new FileDataAccessor(_store, clusterName);
_accessor = new FileHelixDataAccessor(_store, clusterName);
_mgmtTool = new FileHelixAdmin(_store);
_messagingService = new DefaultMessagingService(this);
_sessionId = UUID.randomUUID().toString();
if (instanceType == InstanceType.PARTICIPANT) {
addLiveInstance();
addMessageListener(_messagingService.getExecutor(), _instanceName);
}
_version =
new PropertiesReader("cluster-manager-version.properties")
.getProperty("clustermanager.version");
_stateMachEngine = new HelixStateMachineEngine(this);
_messagingService.registerMessageHandlerFactory(
MessageType.STATE_TRANSITION.toString(), _stateMachEngine);
}
@Override
public void disconnect() {
_store.stop();
_messagingService.getExecutor().shutDown();
_isConnected = false;
}
@Override
public void connect() {
if (!isClusterSetup(_clusterName)) {
throw new HelixException(
"Initial cluster structure is not set up for cluster:" + _clusterName);
}
_messagingService.onConnected();
_store.start();
_isConnected = true;
}