From 8c2ea6e093baf4559d92d6d407fda355fd62807b Mon Sep 17 00:00:00 2001
From: Alexey Melnichuk <mimir@newmail.ru>
Date: Wed, 9 Sep 2015 10:45:49 +0400
Subject: [PATCH] Add. Basic log class.

---
 .../resources/scripts/dialplan/dialplan.lua   |  9 +--
 .../scripts/resources/functions/log.lua       | 70 +++++++++++++++++++
 2 files changed, 75 insertions(+), 4 deletions(-)
 create mode 100644 resources/install/scripts/resources/functions/log.lua

diff --git a/resources/install/scripts/app/xml_handler/resources/scripts/dialplan/dialplan.lua b/resources/install/scripts/app/xml_handler/resources/scripts/dialplan/dialplan.lua
index 232612118d..5ccc18f06b 100644
--- a/resources/install/scripts/app/xml_handler/resources/scripts/dialplan/dialplan.lua
+++ b/resources/install/scripts/app/xml_handler/resources/scripts/dialplan/dialplan.lua
@@ -25,15 +25,16 @@
 --	POSSIBILITY OF SUCH DAMAGE.
 
 	local cache = require"resources.functions.cache"
+	local log = require"resources.functions.log"["xml_handler"]
 
 --get the cache
 	XML_STRING, err = cache.get("dialplan:" .. call_context)
 
 	if debug['cache'] then
 		if XML_STRING then
-			freeswitch.consoleLog("notice", "[xml_handler] dialplan:"..call_context.." source: memcache\n");
+			log.notice("dialplan:"..call_context.." source: memcache");
 		elseif err ~= 'NOT FOUND' then
-			freeswitch.consoleLog("notice", "[xml_handler] error get element form cache: " .. err .. "\n");
+			log.notice("error get element form cache: " .. err);
 		end
 	end
 
@@ -105,7 +106,7 @@
 			sql = sql .. "ELSE 100 END, ";
 			sql = sql .. "s.dialplan_detail_order asc ";
 			if (debug["sql"]) then
-				freeswitch.consoleLog("notice", "[xml_handler] SQL: " .. sql .. "\n");
+				log.notice("SQL: " .. sql);
 			end
 			x = 0;
 			dbh:query(sql, function(row)
@@ -306,7 +307,7 @@
 
 		--send to the console
 			if (debug["cache"]) then
-				freeswitch.consoleLog("notice", "[xml_handler] dialplan:"..call_context.." source: database\n");
+				log.notice("dialplan:"..call_context.." source: database");
 			end
 
 		--close the database connection
diff --git a/resources/install/scripts/resources/functions/log.lua b/resources/install/scripts/resources/functions/log.lua
new file mode 100644
index 0000000000..b6cb59652b
--- /dev/null
+++ b/resources/install/scripts/resources/functions/log.lua
@@ -0,0 +1,70 @@
+-- @usage local log = require"resources.functions.log"["xml_handler"]
+-- log.notice("hello world")
+-- log.noticef("%s %s", "hello", "world")
+-- -- log if debug.SQL or debug.xml_handler.SQL then
+-- log.tracef("SQL", "SQL is %s", sql)
+
+local function log(name, level, msg)
+	freeswitch.consoleLog(level, "[" .. name .. "] " .. msg .. "\n")
+end
+
+local function logf(name, level, ...)
+	return log(name, level, string.format(...))
+end
+
+local function trace(type, name, ...)
+	local t = debug[name]
+	if t and t[type] ~= nil then
+		if t[type] then
+			return log(name, ...)
+		end
+	end
+	if debug[type] then
+		log(name, ...)
+	end
+end
+
+local function tracef(type, name, level, ...)
+	local t = debug[name]
+	if t and t[type] ~= nil then
+		if t[type] then
+			return logf(name, ...)
+		end
+	end
+	if debug[type] then
+		logf(name, ...)
+	end
+end
+
+local LEVELS = {
+	'error',
+	'warning',
+	'notice',
+	'info',
+}
+
+local TRACE_LEVEL = 'notice'
+
+local function make_log(name)
+	local logger = {}
+	for i = 1, #LEVELS do
+		logger[ LEVELS[i] ] = function(...) return log(name, LEVELS[i], ...) end;
+		logger[ LEVELS[i] .. "f" ] = function(...) return logf(name, LEVELS[i], ...) end;
+	end
+
+	logger.trace = function(type, ...)
+		trace(type, name, TRACE_LEVEL, ...)
+	end
+
+	logger.tracef = function(type, ...)
+		tracef(type, name, TRACE_LEVEL, ...)
+	end
+
+	return logger
+end
+
+return setmetatable({}, {__index = function(self, name)
+	local logger = make_log(name)
+	self[name] = logger
+	return logger
+end})
\ No newline at end of file