%%--------------------------------------------------------------------
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2001-2009. 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%
%%
%%
%%----------------------------------------------------------------------
%% File : CosEventChannelAdmin_ProxyPushConsumer_impl.erl
%% Description :
%%
%%----------------------------------------------------------------------
-module('CosEventChannelAdmin_ProxyPushConsumer_impl').
%%----------------------------------------------------------------------
%% Include files
%%----------------------------------------------------------------------
-include("CosEventChannelAdmin.hrl").
-include("CosEventComm.hrl").
-include("cosEventApp.hrl").
%%----------------------------------------------------------------------
%% External exports
%%----------------------------------------------------------------------
%% Mandatory
-export([init/1,
terminate/2,
code_change/3,
handle_info/2]).
%% Exports from "CosEventChannelAdmin::ProxyPushConsumer"
-export([connect_push_supplier/3]).
%% Exports from "CosEventComm::PushConsumer"
-export([push/3,
disconnect_push_consumer/2]).
%%----------------------------------------------------------------------
%% Internal exports
%%----------------------------------------------------------------------
%%----------------------------------------------------------------------
%% Records
%%----------------------------------------------------------------------
-record(state, {admin, admin_pid, channel, client, typecheck}).
%%----------------------------------------------------------------------
%% Macros
%%----------------------------------------------------------------------
%%======================================================================
%% External functions
%%======================================================================
%%----------------------------------------------------------------------
%% Function : init/1
%% Returns : {ok, State} |
%% {ok, State, Timeout} |
%% ignore |
%% {stop, Reason}
%% Description: Initiates the server
%%----------------------------------------------------------------------
init([Admin, AdminPid, Channel, TypeCheck]) ->
process_flag(trap_exit, true),
{ok, #state{admin = Admin, admin_pid = AdminPid, channel = Channel,
typecheck = TypeCheck}}.
%%----------------------------------------------------------------------
%% Function : terminate/2
%% Returns : any (ignored by gen_server)
%% Description: Shutdown the server
%%----------------------------------------------------------------------
terminate(_Reason, #state{client = undefined}) ->
?DBG("Terminating ~p; no client connected.~n", [_Reason]),
ok;
terminate(_Reason, #state{client = Client} = _State) ->
?DBG("Terminating ~p~n", [_Reason]),
cosEventApp:disconnect('CosEventComm_PushSupplier',
disconnect_push_supplier, Client),
ok.
%%----------------------------------------------------------------------
%% Function : code_change/3
%% Returns : {ok, NewState}
%% Description: Convert process state when code is changed
%%----------------------------------------------------------------------
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
%%---------------------------------------------------------------------%
%% function : handle_info
%% Arguments:
%% Returns : {noreply, State} |
%% {stop, Reason, State}
%% Effect : If the Parnet Admin or the Channel terminates so must this object.
%%----------------------------------------------------------------------
handle_info({'EXIT', Pid, Reason}, #state{admin_pid = Pid} = State) ->
?DBG("Parent Admin terminated ~p~n", [Reason]),
orber:dbg("[~p] CosEventChannelAdmin_ProxyPushConsumer:handle_info(~p);~n"
"My Admin terminated and so will I.",
[?LINE, Reason], ?DEBUG_LEVEL),
{stop, Reason, State};
handle_info(_Info, State) ->
?DBG("Unknown Info ~p~n", [_Info]),
{noreply, State}.
%%----------------------------------------------------------------------
%% Function : connect_push_supplier
%% Arguments :
%% Returns :
%% Description:
%%----------------------------------------------------------------------
connect_push_supplier(_OE_This, #state{client = undefined,
typecheck = TypeCheck} = State, NewClient) ->
case corba_object:is_nil(NewClient) of
true ->
?DBG("A NIL client supplied.~n", []),
{reply, ok, State};
false ->
cosEventApp:type_check(NewClient, 'CosEventComm_PushSupplier', TypeCheck),
?DBG("Connected to client.~n", []),
{reply, ok, State#state{client = NewClient}}
end;
connect_push_supplier(_, _, _) ->
corba:raise(#'CosEventChannelAdmin_AlreadyConnected'{}).
%%----------------------------------------------------------------------
%% Function : push
%% Arguments :
%% Returns :
%% Description:
%%----------------------------------------------------------------------
push(_OE_This, State, Any) ->
%% We should not use corba:reply here since if we block incoming
%% events this will prevent producers to flood the system.
?DBG("Received Event ~p and forwarded it successfully.~n", [Any]),
'oe_CosEventComm_Channel':send_sync(State#state.channel, Any),
{reply, ok, State}.
%%----------------------------------------------------------------------
%% Function : disconnect_push_consumer
%% Arguments :
%% Returns :
%% Description:
%%----------------------------------------------------------------------
disconnect_push_consumer(_OE_This, State) ->
?DBG("Disconnect invoked ~p~n", [State]),
{stop, normal, ok, State#state{client = undefined}}.
%%======================================================================
%% Internal functions
%%======================================================================
%%======================================================================
%% END OF MODULE
%%======================================================================
