117 lines
4.0 KiB
Erlang
117 lines
4.0 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% @author aresei
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%%% @copyright (C) 2023, <COMPANY>
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%%% @doc
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%%%
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%%% @end
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%%% Created : 07. 8月 2023 10:15
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%%%-------------------------------------------------------------------
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-module(mysql_postman).
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-author("aresei").
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-include("iot.hrl").
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-behaviour(gen_server).
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%% API
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-export([start_link/1]).
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%% gen_server callbacks
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-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]).
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-define(SERVER, ?MODULE).
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-record(state, {
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mysql_pid :: pid(),
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table :: binary()
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}).
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%%%===================================================================
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%%% API
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%%%===================================================================
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%% @doc Spawns the server and registers the local name (unique)
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-spec(start_link(Args :: list()) ->
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{ok, Pid :: pid()} | ignore | {error, Reason :: term()}).
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start_link(Args) when is_list(Args) ->
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gen_server:start_link(?MODULE, [Args], []).
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%%%===================================================================
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%%% gen_server callbacks
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%%%===================================================================
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%% @private
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%% @doc Initializes the server
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-spec(init(Args :: term()) ->
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{ok, State :: #state{}} | {ok, State :: #state{}, timeout() | hibernate} |
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{stop, Reason :: term()} | ignore).
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init([Args]) ->
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MysqlOpts = proplists:get_value(mysql_opts, Args),
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Table = proplists:get_value(table, Args),
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{ok, ConnPid} = mysql:start_link(MysqlOpts),
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{ok, #state{mysql_pid = ConnPid, table = Table}}.
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%% @private
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%% @doc Handling call messages
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-spec(handle_call(Request :: term(), From :: {pid(), Tag :: term()},
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State :: #state{}) ->
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{reply, Reply :: term(), NewState :: #state{}} |
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{reply, Reply :: term(), NewState :: #state{}, timeout() | hibernate} |
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{noreply, NewState :: #state{}} |
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{noreply, NewState :: #state{}, timeout() | hibernate} |
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{stop, Reason :: term(), Reply :: term(), NewState :: #state{}} |
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{stop, Reason :: term(), NewState :: #state{}}).
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handle_call(_Request, _From, State = #state{}) ->
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{reply, ok, State}.
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%% @private
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%% @doc Handling cast messages
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-spec(handle_cast(Request :: term(), State :: #state{}) ->
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{noreply, NewState :: #state{}} |
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{noreply, NewState :: #state{}, timeout() | hibernate} |
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{stop, Reason :: term(), NewState :: #state{}}).
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handle_cast(_Request, State = #state{}) ->
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{noreply, State}.
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%% @private
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%% @doc Handling all non call/cast messages
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-spec(handle_info(Info :: timeout() | term(), State :: #state{}) ->
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{noreply, NewState :: #state{}} |
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{noreply, NewState :: #state{}, timeout() | hibernate} |
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{stop, Reason :: term(), NewState :: #state{}}).
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handle_info({post, ReceiverPid, #post_data{id = Id, body = Fields}}, State = #state{mysql_pid = ConnPid, table = Table}) when is_list(Fields) ->
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case catch mysql_provider:insert(ConnPid, Table, Fields, false) of
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ok ->
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ReceiverPid ! {ack, Id};
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Error ->
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lager:debug("[mysql_postman] insert table: ~p, res is: ~p", [Table, Error])
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end,
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{noreply, State};
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handle_info(stop, State = #state{mysql_pid = ConnPid}) ->
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mysql:stop(ConnPid),
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{stop, normal, State}.
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%% @private
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%% @doc This function is called by a gen_server when it is about to
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%% terminate. It should be the opposite of Module:init/1 and do any
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%% necessary cleaning up. When it returns, the gen_server terminates
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%% with Reason. The return value is ignored.
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-spec(terminate(Reason :: (normal | shutdown | {shutdown, term()} | term()),
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State :: #state{}) -> term()).
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terminate(_Reason, _State = #state{}) ->
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ok.
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%% @private
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%% @doc Convert process state when code is changed
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-spec(code_change(OldVsn :: term() | {down, term()}, State :: #state{},
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Extra :: term()) ->
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{ok, NewState :: #state{}} | {error, Reason :: term()}).
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code_change(_OldVsn, State = #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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