Logger args are now deferred like in tainbox gem

Author: dmitrii.buk

Gemfile.lock

@@ -8,7 +8,7 @@ GIT
 PATH
   remote: .
   specs:
-    rabbit_messaging (1.6.0)
+    rabbit_messaging (1.6.1)
       bunny (~> 2.0)
       kicks
 

lib/deferred_value.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class DeferredValue
+  def initialize(&block)
+    @block = block
+    @evaluated = false
+  end
+
+  def value
+    return @value if @evaluated
+
+    @value = @block.call
+    @evaluated = true
+    @value
+  end
+end

lib/rabbit.rb

@@ -7,6 +7,8 @@
 
 require "rabbit/extensions/bunny/channel"
 
+require_relative "deferred_value"
+
 module Rabbit
   InvalidConfig = Class.new(StandardError)
   MessageNotDelivered = Class.new(StandardError)
@@ -34,6 +36,17 @@ class Config
                   :publish_logger,
                   :malformed_logger
 
+    def self.attr_deferred_reader(*names)
+      names.each do |name|
+        define_method(name) do
+          val = instance_variable_get(:"@#{name}")
+          val.is_a?(DeferredValue) ? val.value : val
+        end
+      end
+    end
+
+    attr_deferred_reader :receive_logger, :publish_logger, :malformed_logger
+
     def initialize( # rubocop:disable Metrics/MethodLength
       group_id: nil,
       project_id: nil,
@@ -76,9 +89,9 @@ def initialize( # rubocop:disable Metrics/MethodLength
       self.connection_reset_exceptions = connection_reset_exceptions
       self.logger_message_size_limit = logger_message_size_limit
 
-      self.receive_logger = receive_logger || default_receive_logger
-      self.publish_logger = publish_logger || default_publish_logger
-      self.malformed_logger = malformed_logger || default_malformed_logger
+      self.receive_logger = receive_logger || DeferredValue.new { default_receive_logger }
+      self.publish_logger = publish_logger || DeferredValue.new { default_publish_logger }
+      self.malformed_logger = malformed_logger || DeferredValue.new { default_malformed_logger }
     end
 
     def validate!

lib/rabbit/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Rabbit
-  VERSION = "1.6.0"
+  VERSION = "1.6.1"
 end