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snmpa_notification_filter.3erl

NAME

snmpa_notification_filter - Behaviour module for the SNMP agent notification filters.

DESCRIPTION

This module defines the behaviour of the agent notification filters. A snmpa_notification_filter compliant module must export the following functions:

*

handle_notification/2 .br .br

The semantics of them and their exact signatures are explained below.

The purpose of notification filters is to allow for modification and/or suppression of a notification.

A misbehaving filter will be removed.

EXPORTS

handle_notification(Notif, Data) -> Reply

Types

Reply = send | {send, NewNotif} | dont_send
Notif = NewNotif = notification() | trap()
Data = term()

Handle a notification to be sent. The filter can either accept the notification as is, return send, modify the notification, return {send, NewNotif} or suppress the notification, return dont_send.
Data is supplied at filter registration time, see register_notification_filter.