mirror of
https://github.com/processone/ejabberd.git
synced 2024-12-22 17:28:25 +01:00
0cc9d8f8a0
SVN Revision: 2426
129 lines
4.5 KiB
Erlang
129 lines
4.5 KiB
Erlang
%%%----------------------------------------------------------------------
|
|
%%% File : ejabberd_loglevel.erl
|
|
%%% Author : Mickael Remond <mremond@process-one.net>
|
|
%%% Purpose : Loglevel switcher.
|
|
%%% Be careful: you should not have any ejabberd_logger module
|
|
%%% as ejabberd_loglevel switcher is compiling and loading
|
|
%%% dynamically a "virtual" ejabberd_logger module (Described
|
|
%%% in a string at the end of this module).
|
|
%%% Created : 29 Nov 2006 by Mickael Remond <mremond@process-one.net>
|
|
%%%
|
|
%%%
|
|
%%% ejabberd, Copyright (C) 2002-2009 ProcessOne
|
|
%%%
|
|
%%% This program is free software; you can redistribute it and/or
|
|
%%% modify it under the terms of the GNU General Public License as
|
|
%%% published by the Free Software Foundation; either version 2 of the
|
|
%%% License, or (at your option) any later version.
|
|
%%%
|
|
%%% This program is distributed in the hope that it will be useful,
|
|
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
%%% General Public License for more details.
|
|
%%%
|
|
%%% You should have received a copy of the GNU General Public License
|
|
%%% along with this program; if not, write to the Free Software
|
|
%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
%%% 02111-1307 USA
|
|
%%%
|
|
%%%----------------------------------------------------------------------
|
|
|
|
-module(ejabberd_loglevel).
|
|
-author('mickael.remond@process-one.net').
|
|
|
|
-export([set/1, get/0]).
|
|
|
|
-include("ejabberd.hrl").
|
|
|
|
-define(LOGMODULE, "error_logger").
|
|
|
|
%% Error levels:
|
|
-define(LOG_LEVELS,[ {0, no_log, "No log"}
|
|
,{1, critical, "Critical"}
|
|
,{2, error, "Error"}
|
|
,{3, warning, "Warning"}
|
|
,{4, info, "Info"}
|
|
,{5, debug, "Debug"}
|
|
]).
|
|
|
|
get() ->
|
|
Level = ejabberd_logger:get(),
|
|
case lists:keysearch(Level, 1, ?LOG_LEVELS) of
|
|
{value, Result} -> Result;
|
|
_ -> erlang:error({no_such_loglevel, Level})
|
|
end.
|
|
|
|
|
|
set(LogLevel) when is_atom(LogLevel) ->
|
|
set(level_to_integer(LogLevel));
|
|
set(Loglevel) when is_integer(Loglevel) ->
|
|
try
|
|
{Mod,Code} = dynamic_compile:from_string(ejabberd_logger_src(Loglevel)),
|
|
code:load_binary(Mod, ?LOGMODULE ++ ".erl", Code)
|
|
catch
|
|
Type:Error -> ?CRITICAL_MSG("Error compiling logger (~p): ~p~n", [Type, Error])
|
|
end;
|
|
set(_) ->
|
|
exit("Loglevel must be an integer").
|
|
|
|
level_to_integer(Level) ->
|
|
case lists:keysearch(Level, 2, ?LOG_LEVELS) of
|
|
{value, {Int, Level, _Desc}} -> Int;
|
|
_ -> erlang:error({no_such_loglevel, Level})
|
|
end.
|
|
|
|
%% --------------------------------------------------------------
|
|
%% Code of the ejabberd logger, dynamically compiled and loaded
|
|
%% This allows to dynamically change log level while keeping a
|
|
%% very efficient code.
|
|
ejabberd_logger_src(Loglevel) ->
|
|
L = integer_to_list(Loglevel),
|
|
"-module(ejabberd_logger).
|
|
-author('mickael.remond@process-one.net').
|
|
|
|
-export([debug_msg/4,
|
|
info_msg/4,
|
|
warning_msg/4,
|
|
error_msg/4,
|
|
critical_msg/4,
|
|
get/0]).
|
|
|
|
get() -> "++ L ++".
|
|
|
|
%% Helper functions
|
|
debug_msg(Module, Line, Format, Args) when " ++ L ++ " >= 5 ->
|
|
notify(info_msg,
|
|
\"D(~p:~p:~p) : \"++Format++\"~n\",
|
|
[self(), Module, Line]++Args);
|
|
debug_msg(_,_,_,_) -> ok.
|
|
|
|
info_msg(Module, Line, Format, Args) when " ++ L ++ " >= 4 ->
|
|
notify(info_msg,
|
|
\"I(~p:~p:~p) : \"++Format++\"~n\",
|
|
[self(), Module, Line]++Args);
|
|
info_msg(_,_,_,_) -> ok.
|
|
|
|
warning_msg(Module, Line, Format, Args) when " ++ L ++ " >= 3 ->
|
|
notify(error,
|
|
\"W(~p:~p:~p) : \"++Format++\"~n\",
|
|
[self(), Module, Line]++Args);
|
|
warning_msg(_,_,_,_) -> ok.
|
|
|
|
error_msg(Module, Line, Format, Args) when " ++ L ++ " >= 2 ->
|
|
notify(error,
|
|
\"E(~p:~p:~p) : \"++Format++\"~n\",
|
|
[self(), Module, Line]++Args);
|
|
error_msg(_,_,_,_) -> ok.
|
|
|
|
critical_msg(Module, Line, Format, Args) when " ++ L ++ " >= 1 ->
|
|
notify(error,
|
|
\"C(~p:~p:~p) : \"++Format++\"~n\",
|
|
[self(), Module, Line]++Args);
|
|
critical_msg(_,_,_,_) -> ok.
|
|
|
|
%% Distribute the message to the Erlang error logger
|
|
notify(Type, Format, Args) ->
|
|
LoggerMsg = {Type, group_leader(), {self(), Format, Args}},
|
|
gen_event:notify(error_logger, LoggerMsg).
|
|
".
|