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+%%--------------------------------------------------------------------
+%%
+%% %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 : oe_CosEventComm_CAdmin_impl.erl
+%% Description :
+%%
+%%----------------------------------------------------------------------
+-module(oe_CosEventComm_CAdmin_impl).
+
+%%----------------------------------------------------------------------
+%% Include files
+%%----------------------------------------------------------------------
+-include_lib("orber/include/corba.hrl").
+-include("cosEventApp.hrl").
+
+%%----------------------------------------------------------------------
+%% External exports
+%%----------------------------------------------------------------------
+-export([init/1,
+ terminate/2,
+ code_change/3,
+ handle_info/2]).
+
+%% Exports from "CosEventChannelAdmin::ConsumerAdmin"
+-export([obtain_push_supplier/3,
+ obtain_pull_supplier/3]).
+
+
+%%----------------------------------------------------------------------
+%% Internal exports
+%%----------------------------------------------------------------------
+%% Exports from "oe_CosEventComm::Event"
+-export([send/3, send_sync/4]).
+
+%%----------------------------------------------------------------------
+%% Records
+%%----------------------------------------------------------------------
+-record(state, {channel_pid, typecheck, maxevents, proxies = [],
+ server_options}).
+
+%%----------------------------------------------------------------------
+%% Macros
+%%----------------------------------------------------------------------
+
+
+%%======================================================================
+%% External functions
+%%======================================================================
+%%----------------------------------------------------------------------
+%% Function : init/1
+%% Returns : {ok, State} |
+%% {ok, State, Timeout} |
+%% ignore |
+%% {stop, Reason}
+%% Description: Initiates the server
+%%----------------------------------------------------------------------
+init([ChannelPid, TypeCheck, MaxEvents, ServerOpts]) ->
+ process_flag(trap_exit, true),
+ {ok, #state{channel_pid = ChannelPid, typecheck = TypeCheck,
+ maxevents = MaxEvents, server_options = ServerOpts}}.
+
+%%----------------------------------------------------------------------
+%% Function : terminate/2
+%% Returns : any (ignored by gen_server)
+%% Description: Shutdown the server
+%%----------------------------------------------------------------------
+terminate(_Reason, _State) ->
+ ?DBG("Terminating ~p~n", [_Reason]),
+ 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 : Functions demanded by the gen_server module.
+%%----------------------------------------------------------------------
+handle_info({'EXIT', Pid, Reason}, #state{channel_pid = Pid} = State) ->
+ ?DBG("Parent Channel terminated ~p~n", [Reason]),
+ orber:dbg("[~p] oe_CosEventComm_PullerS_impl:handle_info(~p);~n"
+ "My Channel terminated and so will I which will cause"
+ " my children to do the same thing.",
+ [?LINE, Reason], ?DEBUG_LEVEL),
+ {stop, Reason, State};
+handle_info({'EXIT', Pid, _Reason}, #state{proxies = Proxies} = State) ->
+ %% A child terminated which is normal. Hence, no logging.
+ ?DBG("Probably a child terminated ~p~n", [_Reason]),
+ {noreply, State#state{proxies = lists:keydelete(Pid, 2, Proxies)}};
+handle_info(_Info, State) ->
+ ?DBG("Unknown Info ~p~n", [_Info]),
+ {noreply, State}.
+
+%%----------------------------------------------------------------------
+%% Function : obtain_push_supplier
+%% Arguments :
+%% Returns :
+%% Description:
+%%----------------------------------------------------------------------
+obtain_push_supplier(_, _, #state{server_options = ServerOpts} = State) ->
+ case catch 'oe_CosEventComm_PusherS':oe_create_link([self(),
+ State#state.typecheck],
+ [{sup_child, true}|ServerOpts]) of
+ {ok, Pid, Proxy} ->
+ ?DBG("Started a new oe_CosEventComm_PusherS.~n", []),
+ {reply, Proxy, State#state{proxies = [{Proxy, Pid}|State#state.proxies]}};
+ Other ->
+ orber:dbg("[~p] oe_CosEventComm_CAdmin:obtain_push_supplier();~nError: ~p",
+ [?LINE, Other], ?DEBUG_LEVEL),
+ corba:raise(#'INTERNAL'{completion_status=?COMPLETED_NO})
+ end.
+
+%%----------------------------------------------------------------------
+%% Function : obtain_pull_supplier
+%% Arguments :
+%% Returns :
+%% Description:
+%%----------------------------------------------------------------------
+obtain_pull_supplier(_, _, #state{server_options = ServerOpts} = State) ->
+ case catch 'oe_CosEventComm_PullerS':oe_create_link([self(),
+ State#state.typecheck,
+ State#state.maxevents],
+ [{sup_child, true}|ServerOpts]) of
+ {ok, Pid, Proxy} ->
+ ?DBG("Started a new oe_CosEventComm_PullerS.~n", []),
+ {reply, Proxy, State#state{proxies = [{Proxy, Pid}|State#state.proxies]}};
+ Other ->
+ orber:dbg("[~p] oe_CosEventComm_CAdmin:obtain_pull_supplier();~nError: ~p",
+ [?LINE, Other], ?DEBUG_LEVEL),
+ corba:raise(#'INTERNAL'{completion_status=?COMPLETED_NO})
+ end.
+
+
+%%----------------------------------------------------------------------
+%% Function : send
+%% Arguments :
+%% Returns :
+%% Description:
+%%----------------------------------------------------------------------
+send(_, #state{proxies = Proxies} = State, Any) ->
+ ?DBG("Received Event ~p~n", [Any]),
+ case send_helper(Proxies, Any, [], false) of
+ ok ->
+ ?DBG("Received Event and forwarded it successfully.~n", []),
+ {noreply, State};
+ {error, Dropped} ->
+ ?DBG("Received Event but forward failed to: ~p~n", [Dropped]),
+ RemainingProxies = delete_proxies(Dropped, Proxies),
+ {noreply, State#state{proxies = RemainingProxies}}
+ end.
+
+%%----------------------------------------------------------------------
+%% Function : send_sync
+%% Arguments :
+%% Returns :
+%% Description:
+%%----------------------------------------------------------------------
+send_sync(_, OE_From, #state{proxies = Proxies} = State, Any) ->
+ ?DBG("Received Event ~p~n", [Any]),
+ corba:reply(OE_From, ok),
+ case send_helper(Proxies, Any, [], true) of
+ ok ->
+ ?DBG("Received Event and forwarded (sync) it successfully.~n", []),
+ {noreply, State};
+ {error, Dropped} ->
+ ?DBG("Received Event but forward (sync) failed to: ~p~n", [Dropped]),
+ RemainingProxies = delete_proxies(Dropped, Proxies),
+ {noreply, State#state{proxies = RemainingProxies}}
+ end.
+
+
+%%======================================================================
+%% Internal functions
+%%======================================================================
+send_helper([], _, [], _) ->
+ ok;
+send_helper([], _, Dropped, _) ->
+ {error, Dropped};
+send_helper([{ObjRef, Pid}|T], Event, Dropped, false) ->
+ case catch 'oe_CosEventComm_Event':send(ObjRef, Event) of
+ ok ->
+ send_helper(T, Event, Dropped, false);
+ What ->
+ orber:dbg("[~p] oe_CosEventComm_CAdmin:send_helper(~p, ~p);~n"
+ "Bad return value ~p. Closing connection.",
+ [?LINE, ObjRef, Event, What], ?DEBUG_LEVEL),
+ send_helper(T, Event, [{ObjRef, Pid}|Dropped], false)
+ end;
+send_helper([{ObjRef, Pid}|T], Event, Dropped, Sync) ->
+ case catch 'oe_CosEventComm_Event':send_sync(ObjRef, Event) of
+ ok ->
+ send_helper(T, Event, Dropped, Sync);
+ What ->
+ orber:dbg("[~p] oe_CosEventComm_CAdmin:send_helper(~p, ~p);~n"
+ "Bad return value ~p. Closing connection.",
+ [?LINE, ObjRef, Event, What], ?DEBUG_LEVEL),
+ send_helper(T, Event, [{ObjRef, Pid}|Dropped], Sync)
+ end.
+
+delete_proxies([], RemainingProxies) ->
+ RemainingProxies;
+delete_proxies([{_,Pid}|T], Proxies) ->
+ Rest = lists:keydelete(Pid, 2, Proxies),
+ delete_proxies(T, Rest).
+
+%%======================================================================
+%% END OF MODULE
+%%======================================================================
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