20042016 Ericsson AB. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. snmpa_notification_filter snmpa_notification_filter.xml
snmpa_notification_filter Behaviour module for the SNMP agent notification filters.

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

handle_notification/2

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.

 handle_notification(Notif, Data) -> Reply Handle a notification 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.