tidy greylog

config/postal.defaults.yml

@@ -41,6 +41,9 @@ logging:
   root: # Automatically determined based on config root
   max_log_file_size: 20
   max_log_files: 10
+  greylog:
+    host:
+    port: 12201
 
 message_db:
   host: 127.0.0.1

lib/postal/app_logger.rb

@@ -3,11 +3,6 @@ require 'logger'
 module Postal
   class AppLogger < Logger
 
-    def self.greylog_notifier
-      @greylog_notifier ||= Postal.config.logging.greylog ? GELF::Notifier.new(Postal.config.logging.greylog.host, Postal.config.logging.greylog.port) : nil
-
-    end
-
     def initialize(log_name, *args)
       @log_name = log_name
       super(*args)
@@ -33,6 +28,14 @@ module Postal
       end
       true
     end
+
+    def self.greylog?
+      !!Postal.config.logging.greylog&.host
+    end
+
+    def self.greylog_notifier
+      @greylog_notifier ||= greylog? ? GELF::Notifier.new(Postal.config.logging.greylog.host, Postal.config.logging.greylog.port) : nil
+    end
   end
 
   class LogFormatter