97 lines
3.4 KiB
Erlang
97 lines
3.4 KiB
Erlang
%%-----------------------------------------------------------------------------
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%% Copyright (c) 2012-2015, Feng Lee <feng@emqtt.io>
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%%
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%% Permission is hereby granted, free of charge, to any person obtaining a copy
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%% of this software and associated documentation files (the "Software"), to deal
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%% in the Software without restriction, including without limitation the rights
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%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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%% copies of the Software, and to permit persons to whom the Software is
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%% furnished to do so, subject to the following conditions:
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%%
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%% The above copyright notice and this permission notice shall be included in all
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%% copies or substantial portions of the Software.
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%%
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%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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%% SOFTWARE.
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%%------------------------------------------------------------------------------
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%%TODO: route chain... statistics
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-module(emqttd_router).
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-include_lib("emqtt/include/emqtt.hrl").
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-behaviour(gen_server).
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-define(SERVER, ?MODULE).
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%% API Function Exports
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-export([start_link/0]).
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%%Router Chain--> --->In Out<---
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-export([route/2]).
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%% gen_server Function Exports
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-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
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terminate/2, code_change/3]).
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-record(state, {}).
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%%%=============================================================================
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%%% API
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%%%=============================================================================
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%%------------------------------------------------------------------------------
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%% @doc
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%% Start emqttd router.
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%%
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%% @end
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%%------------------------------------------------------------------------------
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-spec start_link() -> {ok, pid()} | ignore | {error, term()}.
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start_link() ->
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gen_server:start_link({local, ?SERVER}, ?MODULE, [], []).
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%%------------------------------------------------------------------------------
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%% @doc
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%% Route mqtt message. From is clienid or module.
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%%
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%% @end
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%%------------------------------------------------------------------------------
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-spec route(From :: binary() | atom(), Msg :: mqtt_message()) -> ok.
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route(From, Msg) ->
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lager:info("Route ~s from ~s", [emqtt_message:format(Msg), From]),
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% TODO: retained message should be stored in emqttd_pubsub...
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% emqttd_retained:retain(Msg),
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% unset flag and pubsub
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emqttd_pubsub:publish(Msg).
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%%%=============================================================================
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%%% gen_server callbacks
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%%%=============================================================================
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init([]) ->
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{ok, #state{}, hibernate}.
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handle_call(_Request, _From, State) ->
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{reply, ok, State}.
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handle_cast(_Msg, State) ->
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{noreply, State}.
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handle_info(_Info, State) ->
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{noreply, State}.
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terminate(_Reason, _State) ->
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ok.
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code_change(_OldVsn, State, _Extra) ->
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{ok, State}.
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%%%=============================================================================
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%%% Internal functions
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%%%=============================================================================
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