Update log filter

jls/net/http/filter/LogHttpFilter.lua

@@ -6,25 +6,22 @@ After adding this filter, any request containing the header *jls-logger-level* w
 @pragma nostrip
 ]]
 
-local logger = require('jls.lang.logger'):get(...)
+local rootLogger = require('jls.lang.logger')
 
 --- A LogHttpFilter class.
 -- @type LogHttpFilter
 return require('jls.lang.class').create('jls.net.http.HttpFilter', function(filter)
 
   function filter:doFilter(exchange)
-    local ml = exchange:getRequest():getHeader('jls-logger-level')
-    if ml then
-      ml = logger:getClass().levelFromString(ml)
-      if ml then
-        local level = logger:getLevel()
-        if ml < level then
-          logger:setLevel(ml)
-          exchange:onClose():next(function()
-            logger:setLevel(level)
-          end)
-        end
-      end
+    local ll = exchange:getRequest():getHeader('jls-logger-level')
+    if ll then
+      local config = rootLogger:getConfig()
+      rootLogger:cleanConfig()
+      rootLogger:applyConfig(ll)
+      exchange:onClose():next(function()
+        rootLogger:cleanConfig()
+        rootLogger:applyConfig(config)
+      end)
     end
   end