_site/cover/pgmp_error_notice_fields.COVER.html

1 %% Copyright (c) 2022 Peter Morgan <peter.james.morgan@gmail.com>
2 %%
3 %% Licensed under the Apache License, Version 2.0 (the "License");
4 %% you may not use this file except in compliance with the License.
5 %% You may obtain a copy of the License at
6 %%
7 %% http://www.apache.org/licenses/LICENSE-2.0
8 %%
9 %% Unless required by applicable law or agreed to in writing, software
10 %% distributed under the License is distributed on an "AS IS" BASIS,
11 %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 %% See the License for the specific language governing permissions and
13 %% limitations under the License.
14
15
16 -module(pgmp_error_notice_fields).
17
18
19 -export([callback_mode/0]).
20 -export([init/1]).
21 -export([map/1]).
22 -export([start_link/0]).
23 -include_lib("stdlib/include/ms_transform.hrl").
24
25
26 start_link() ->
27 10 gen_statem:start_link(?MODULE, [], envy_gen:options(?MODULE)).
28
29
30 map({Tag, ErrorNoticeFields}) when Tag == error_response;
31 Tag == notice_response ->
32 13 {Tag,
33 lists:foldl(
34 fun
35 ({K, V}, A) ->
36 106 case ets:lookup(?MODULE, K) of
37 [{_, Name, Mapping}] ->
38 29 A#{Name => Mapping(V)};
39
40 [{_, Name}] ->
41 77 A#{Name => V};
42
43 [] ->
44
:-(
A#{K => V}
45 end
46 end,
47 #{},
48 ErrorNoticeFields)}.
49
50
51 init([]) ->
52 10 process_flag(trap_exit, true),
53 10 ets:insert_new(
54 ets:new(?MODULE, [named_table]),
55 pgmp:priv_consult("error-notice-fields.terms")),
56 10 {ok, ready, #{}}.
57
58
59 callback_mode() ->
60 10 handle_event_function.
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