Method add_event_handler

kubernetes/informer/informer.py:104–123

Register a callback for a specific event type. Parameters ---------- event_type: One of :data:`ADDED`, :data:`MODIFIED`, :data:`DELETED`, :data:`BOOKMARK` or :data:`ERROR`. handler: Callable invoked with the event object (or the ra

(self, event_type, handler)

        return self._cache

    def add_event_handler(self, event_type, handler):
        """Register a callback for a specific event type.

        Parameters
        ----------
        event_type:
            One of :data:`ADDED`, :data:`MODIFIED`, :data:`DELETED`,
            :data:`BOOKMARK` or :data:`ERROR`.
        handler:
            Callable invoked with the event object (or the raw exception for
            ERROR events).
        """
        if event_type not in self._handlers:
            raise ValueError(
                "Unknown event_type {!r}. Use one of: {}".format(
                    event_type, ", ".join(sorted(self._handlers)),
                )
            )
        with self._handler_lock:
            self._handlers[event_type].append(handler)

    def remove_event_handler(self, event_type, handler):
        """Deregister a previously registered *handler*.