diff options
Diffstat (limited to 'lib/dialyzer/test/small_SUITE_data/src/pubsub')
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/pubsub/pubsub_api.erl | 99 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/pubsub/pubsub_publish.erl | 49 |
2 files changed, 148 insertions, 0 deletions
diff --git a/lib/dialyzer/test/small_SUITE_data/src/pubsub/pubsub_api.erl b/lib/dialyzer/test/small_SUITE_data/src/pubsub/pubsub_api.erl new file mode 100644 index 0000000000..85ea292077 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/pubsub/pubsub_api.erl @@ -0,0 +1,99 @@ +% Copyright 2007-2008 Konrad-Zuse-Zentrum für Informationstechnik Berlin +% +% Licensed under the Apache License, Version 2.0 (the "License"); +% you may not use this file except in compliance with the License. +% You may obtain a copy of the License at +% +% http://www.apache.org/licenses/LICENSE-2.0 +% +% Unless required by applicable law or agreed to in writing, software +% distributed under the License is distributed on an "AS IS" BASIS, +% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +% See the License for the specific language governing permissions and +% limitations under the License. +%%%------------------------------------------------------------------- +%%% File : pubsub_api.erl +%%% Author : Thorsten Schuett <[email protected]> +%%% Description : Publish API function +%%% +%%% Created : 17 Sep 2007 by Thorsten Schuett <[email protected]> +%%%------------------------------------------------------------------- +%% @author Thorsten Schuett <[email protected]> +%% @copyright 2007-2008 Konrad-Zuse-Zentrum für Informationstechnik Berlin +%% @version $Id $ +-module(pubsub_dir.pubsub_api). + +-author('[email protected]'). +-vsn('$Id: pubsub_api.erl,v 1.1 2009/11/06 12:39:55 maria Exp $ '). + +-export([publish/2, subscribe/2, unsubscribe/2, get_subscribers/1]). + +-import(transstore.transaction_api). +-import(io). +-import(lists). + +%%==================================================================== +%% public functions +%%==================================================================== + +%% @doc publishs an event under a given topic. +%% called e.g. from the java-interface +%% @spec publish(string(), string()) -> ok +publish(Topic, Content) -> + Subscribers = get_subscribers(Topic), + io:format("calling subscribers ~p~n", [Subscribers]), + lists:foreach(fun (Subscriber) -> + io:format("calling ~p~n", [Subscriber]), + pubsub_publish:publish(Subscriber, Topic, Content) + end, + Subscribers), + ok. + +%% @doc subscribes a url for a topic. +%% called e.g. from the java-interface +%% @spec subscribe(string(), string()) -> ok | {fail, term()} +subscribe(Topic, URL) -> + TFun = fun(TransLog) -> + {{Success, _ValueOrReason} = Result, TransLog1} = transaction_api:read(Topic, TransLog), + {Result2, TransLog2} = if + Success == fail -> + transaction_api:write(Topic, [URL], TransLog); %obacht: muss TransLog sein! + true -> + {value, Subscribers} = Result, + transaction_api:write(Topic, [URL | Subscribers], TransLog1) + end, + if + Result2 == ok -> + {{ok, ok}, TransLog2}; + true -> + {Result2, TransLog2} + end + end, + transaction_api:do_transaction(TFun, fun (_) -> ok end, fun (X) -> {fail, X} end). + +%% @doc unsubscribes a url for a topic. +-spec(unsubscribe/2 :: (string(), string()) -> ok | {fail, any()}). +unsubscribe(Topic, URL) -> + TFun = fun(TransLog) -> + {Subscribers, TransLog1} = transaction_api:read2(TransLog, Topic), + case lists:member(URL, Subscribers) of + true -> + NewSubscribers = lists:delete(URL, Subscribers), + TransLog2 = transaction_api:write2(TransLog1, Topic, NewSubscribers), + {{ok, ok}, TransLog2}; + false -> + {{fail, not_found}, TransLog} + end + end, + transaction_api:do_transaction(TFun, fun (_) -> ok end, fun (X) -> {fail, X} end). + +%% @doc queries the subscribers of a query +%% @spec get_subscribers(string()) -> [string()] +get_subscribers(Topic) -> + {Fl, _Value} = transaction_api:quorum_read(Topic), + if + Fl == fail -> %% Fl is either Fail or the Value/Subscribers + []; + true -> + Fl + end. diff --git a/lib/dialyzer/test/small_SUITE_data/src/pubsub/pubsub_publish.erl b/lib/dialyzer/test/small_SUITE_data/src/pubsub/pubsub_publish.erl new file mode 100644 index 0000000000..601dbad74b --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/pubsub/pubsub_publish.erl @@ -0,0 +1,49 @@ +% Copyright 2008 Konrad-Zuse-Zentrum für Informationstechnik Berlin +% +% Licensed under the Apache License, Version 2.0 (the "License"); +% you may not use this file except in compliance with the License. +% You may obtain a copy of the License at +% +% http://www.apache.org/licenses/LICENSE-2.0 +% +% Unless required by applicable law or agreed to in writing, software +% distributed under the License is distributed on an "AS IS" BASIS, +% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +% See the License for the specific language governing permissions and +% limitations under the License. +%%%------------------------------------------------------------------- +%%% File : pubsub_publish.erl +%%% Author : Thorsten Schuett <[email protected]> +%%% Description : Publish function +%%% +%%% Created : 26 Mar 2008 by Thorsten Schuett <[email protected]> +%%%------------------------------------------------------------------- +%% @author Thorsten Schuett <[email protected]> +%% @copyright 2008 Konrad-Zuse-Zentrum für Informationstechnik Berlin +%% @version $Id $ +-module(pubsub_dir.pubsub_publish). + +-author('[email protected]'). +-vsn('$Id: pubsub_publish.erl,v 1.1 2009/11/06 12:39:55 maria Exp $ '). + +-export([publish/3, publish_internal/3]). + +-import(json). +-import(io). +-import(http). +-import(jsonrpc). + +%%==================================================================== +%% public functions +%%==================================================================== + +%% @doc publishs an event to a given url. +%% @spec publish(string(), string(), string()) -> ok +%% @todo use pool:pspawn +publish(URL, Topic, Content) -> + spawn(fun () -> pubsub_publish:publish_internal(URL, Topic, Content) end), + ok. + +publish_internal(URL, Topic, Content) -> + Res = jsonrpc:call(URL, [], {call, notify, [Topic, Content]}), + io:format("~p ~p~n", [Res, URL]). |