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Diffstat (limited to 'lib/cosEvent/src/CosEventChannelAdmin_ProxyPushConsumer_impl.erl')
| -rw-r--r-- | lib/cosEvent/src/CosEventChannelAdmin_ProxyPushConsumer_impl.erl | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/lib/cosEvent/src/CosEventChannelAdmin_ProxyPushConsumer_impl.erl b/lib/cosEvent/src/CosEventChannelAdmin_ProxyPushConsumer_impl.erl new file mode 100644 index 0000000000..969beb1d04 --- /dev/null +++ b/lib/cosEvent/src/CosEventChannelAdmin_ProxyPushConsumer_impl.erl @@ -0,0 +1,169 @@ +%%-------------------------------------------------------------------- +%% +%% %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 +%%====================================================================== |