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util/logger.lua @ 5763:0e52f1d5ca71
mod_register: Use more specific get_option variants
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 02 Aug 2013 14:44:56 +0200 |
parent | 4937:b3fe52353295 |
child | 5776:bd0ff8ae98a8 |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local pcall = pcall; local find = string.find; local ipairs, pairs, setmetatable = ipairs, pairs, setmetatable; module "logger" local level_sinks = {}; local make_logger; function init(name) local log_debug = make_logger(name, "debug"); local log_info = make_logger(name, "info"); local log_warn = make_logger(name, "warn"); local log_error = make_logger(name, "error"); return function (level, message, ...) if level == "debug" then return log_debug(message, ...); elseif level == "info" then return log_info(message, ...); elseif level == "warn" then return log_warn(message, ...); elseif level == "error" then return log_error(message, ...); end end end function make_logger(source_name, level) local level_handlers = level_sinks[level]; if not level_handlers then level_handlers = {}; level_sinks[level] = level_handlers; end local logger = function (message, ...) for i = 1,#level_handlers do level_handlers[i](source_name, level, message, ...); end end return logger; end function reset() for level, handler_list in pairs(level_sinks) do -- Clear all handlers for this level for i = 1, #handler_list do handler_list[i] = nil; end end end function add_level_sink(level, sink_function) if not level_sinks[level] then level_sinks[level] = { sink_function }; else level_sinks[level][#level_sinks[level] + 1 ] = sink_function; end end _M.new = make_logger; return _M;