void addListener(
Object listener, PropertyKey propertyKey, ChangeType changeType, EventType[] eventType) {
checkConnected();
PropertyType type = propertyKey.getType();
synchronized (this) {
for (CallbackHandler handler : _handlers) {
// compare property-key path and listener reference
if (handler.getPath().equals(propertyKey.getPath())
&& handler.getListener().equals(listener)) {
LOG.info(
"Listener: "
+ listener
+ " on path: "
+ propertyKey.getPath()
+ " already exists. skip add");
return;
}
}
CallbackHandler newHandler =
new CallbackHandler(this, _zkclient, propertyKey, listener, eventType, changeType);
_handlers.add(newHandler);
LOG.info(
"Added listener: "
+ listener
+ " for type: "
+ type
+ " to path: "
+ newHandler.getPath());
}
}
