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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2010-2015. 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%
%%

%%
%% An example Diameter server that can respond to the base protocol
%% RAR sent by the client example.
%%
%% The simplest example to start a server listening on the loopback
%% address (which will serve the example usage given in client.erl) is
%% like this assuming diameter is already started (eg. diameter:start()):
%%
%%   server:start().
%%   server:listen(tcp).
%%
%% The first call starts a service, the second adds a transport listening
%% on the default port.
%%

-module(server).

-export([start/1,    %% start a service
         listen/2,   %% add a listening transport
         stop/1]).   %% stop a service

%% Convenience functions using the default service name.
-export([start/0,
         listen/1,
         stop/0]).

-define(DEF_SVC_NAME, ?MODULE).

%% The service configuration. In a server supporting multiple Diameter
%% applications each application may have its own, although they could all
%% be configured with a common callback module.
-define(SERVICE(Name), [{'Origin-Host', atom_to_list(Name) ++ ".example.com"},
                        {'Origin-Realm', "example.com"},
                        {'Vendor-Id', 193},
                        {'Product-Name', "Server"},
                        {'Auth-Application-Id', [0]},
                        {string_decode, false},
                        {application, [{alias, common},
                                       {dictionary, diameter_gen_base_rfc6733},
                                       {module, server_cb}]}]).

%% start/1

start(Name)
  when is_atom(Name) ->
    node:start(Name, ?SERVICE(Name)).

start() ->
    start(?DEF_SVC_NAME).

%% listen/2

listen(Name, T) ->
    node:listen(Name, T).

listen(T) ->
    listen(?DEF_SVC_NAME, T).

%% stop/1

stop(Name) ->
    node:stop(Name).

stop() ->
    stop(?DEF_SVC_NAME).