Checks if the input data can be handled by this class. Throws an error if it can't handle the data.
Input data that would be handled potentially.
A promise resolving if this input can be handled, rejecting with an Error if not.
Handles the given input. This should only be done if the canHandle function returned true.
Input data that needs to be handled.
A promise resolving when the handling is finished. Return value depends on the given type.
The data to handle.
The result of the handle function of the handler.
Verifies if the given credentials have access to the given permissions on the given resource. An {@link Error} with the necessary explanation will be thrown when permissions are not granted.