%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2010-2011. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
%%
%% A minimal application callback module.
%%
-module(diameter_callback).
-export([peer_up/3,
peer_down/3,
pick_peer/4,
prepare_request/3,
prepare_retransmit/3,
handle_request/3,
handle_answer/4,
handle_error/4]).
-include_lib("diameter/include/diameter.hrl").
%%% ----------------------------------------------------------
%%% # peer_up/3
%%% ----------------------------------------------------------
peer_up(_Svc, _Peer, State) ->
State.
%%% ----------------------------------------------------------
%%% # peer_down/3
%%% ----------------------------------------------------------
peer_down(_SvcName, _Peer, State) ->
State.
%%% ----------------------------------------------------------
%%% # pick_peer/4
%%% ----------------------------------------------------------
pick_peer([Peer|_], _, _SvcName, _State) ->
{ok, Peer}.
%%% ----------------------------------------------------------
%%% # prepare_request/3
%%% ----------------------------------------------------------
prepare_request(Pkt, _SvcName, _Peer) ->
{send, Pkt}.
%%% ----------------------------------------------------------
%%% # prepare_retransmit/3
%%% ----------------------------------------------------------
prepare_retransmit(Pkt, _SvcName, _Peer) ->
{send, Pkt}.
%%% ----------------------------------------------------------
%%% # handle_request/3
%%% ----------------------------------------------------------
handle_request(_Pkt, _SvcName, _Peer) ->
{protocol_error, 3001}. %% DIAMETER_COMMAND_UNSUPPORTED
%%% ----------------------------------------------------------
%%% # handle_answer/4
%%% ----------------------------------------------------------
handle_answer(#diameter_packet{msg = Ans}, _Req, _SvcName, _Peer) ->
Ans.
%%% ---------------------------------------------------------------------------
%%% # handle_error/4
%%% ---------------------------------------------------------------------------
handle_error(Reason, _Req, _SvcName, _Peer) ->
{error, Reason}.
