private boolean isInstanceSetup() {
if (_instanceType == InstanceType.PARTICIPANT
|| _instanceType == InstanceType.CONTROLLER_PARTICIPANT) {
boolean isValid =
_store.exists(
PropertyPathConfig.getPath(
PropertyType.CONFIGS,
_clusterName,
ConfigScopeProperty.PARTICIPANT.toString(),
_instanceName))
&& _store.exists(
PropertyPathConfig.getPath(PropertyType.MESSAGES, _clusterName, _instanceName))
&& _store.exists(
PropertyPathConfig.getPath(
PropertyType.CURRENTSTATES, _clusterName, _instanceName))
&& _store.exists(
PropertyPathConfig.getPath(
PropertyType.STATUSUPDATES, _clusterName, _instanceName))
&& _store.exists(
PropertyPathConfig.getPath(PropertyType.ERRORS, _clusterName, _instanceName));
return isValid;
}
return true;
}
@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;
}
@Override
public PropertyStore<ZNRecord> getPropertyStore() {
checkConnected();
if (_propertyStore == null) {
String path = PropertyPathConfig.getPath(PropertyType.PROPERTYSTORE, _clusterName);
String propertyStoreRoot = _store.getPropertyRootNamespace() + path;
_propertyStore =
new FilePropertyStore<ZNRecord>(
new PropertyJsonSerializer<ZNRecord>(ZNRecord.class),
propertyStoreRoot,
new PropertyJsonComparator<ZNRecord>(ZNRecord.class));
}
return _propertyStore;
}
private boolean isClusterSetup(String clusterName) {
if (clusterName == null || _store == null) {
return false;
}
boolean isValid =
_store.exists(PropertyPathConfig.getPath(PropertyType.IDEALSTATES, clusterName))
&& _store.exists(
PropertyPathConfig.getPath(
PropertyType.CONFIGS, clusterName, ConfigScopeProperty.CLUSTER.toString()))
&& _store.exists(
PropertyPathConfig.getPath(
PropertyType.CONFIGS, clusterName, ConfigScopeProperty.PARTICIPANT.toString()))
&& _store.exists(
PropertyPathConfig.getPath(
PropertyType.CONFIGS, clusterName, ConfigScopeProperty.RESOURCE.toString()))
&& _store.exists(PropertyPathConfig.getPath(PropertyType.PROPERTYSTORE, clusterName))
&& _store.exists(PropertyPathConfig.getPath(PropertyType.LIVEINSTANCES, clusterName))
&& _store.exists(PropertyPathConfig.getPath(PropertyType.INSTANCES, clusterName))
&& _store.exists(PropertyPathConfig.getPath(PropertyType.EXTERNALVIEW, clusterName))
&& _store.exists(PropertyPathConfig.getPath(PropertyType.CONTROLLER, clusterName))
&& _store.exists(PropertyPathConfig.getPath(PropertyType.STATEMODELDEFS, clusterName))
&& _store.exists(
PropertyPathConfig.getPath(PropertyType.MESSAGES_CONTROLLER, clusterName))
&& _store.exists(
PropertyPathConfig.getPath(PropertyType.ERRORS_CONTROLLER, clusterName))
&& _store.exists(
PropertyPathConfig.getPath(PropertyType.STATUSUPDATES_CONTROLLER, clusterName))
&& _store.exists(PropertyPathConfig.getPath(PropertyType.HISTORY, clusterName));
return isValid;
}