jsx/src/gen_json.erl

%% The MIT License

%% Copyright (c) 2011 Alisdair Sullivan <alisdairsullivan@yahoo.ca>

%% Permission is hereby granted, free of charge, to any person obtaining a copy
%% of this software and associated documentation files (the "Software"), to deal
%% in the Software without restriction, including without limitation the rights
%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%% copies of the Software, and to permit persons to whom the Software is
%% furnished to do so, subject to the following conditions:

%% The above copyright notice and this permission notice shall be included in
%% all copies or substantial portions of the Software.

%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
%% THE SOFTWARE.


-module(gen_json).

-export([behaviour_info/1]).
-export([parser/2, parser/3]).


behaviour_info(callbacks) -> [{init, 0}, {handle_event, 2}];
behaviour_info(_) -> undefined.


parser(Mod, Args) -> parser(Mod, Args, []).

parser(Mod, Args, Opts) when is_atom(Mod), is_list(Opts) ->
    case proplists:get_value(parser, Opts, auto) of
        auto ->
            fun(Input) when is_list(Input) -> (jsx:encoder(Mod, Args, Opts))(Input)
                ; (Input) when is_binary(Input) -> (jsx:decoder(Mod, Args, Opts))(Input)
            end
        ; encoder ->
            fun(Input) -> (jsx:encoder(Mod, Args, Opts))(Input) end
        ; decoder ->
            fun(Input) -> (jsx:decoder(Mod, Args, Opts))(Input) end
    end.