lib/fluent/plugin/out_mail.rb in fluent-plugin-mail-0.0.4 vs lib/fluent/plugin/out_mail.rb in fluent-plugin-mail-0.0.5

@@ -1,8 +1,13 @@
 class Fluent::MailOutput < Fluent::Output
   Fluent::Plugin.register_output('mail', self)
 
+  # Define `log` method for v0.10.42 or earlier
+  unless method_defined?(:log)
+    define_method("log") { $log }
+  end
+
   config_param :out_keys, :string, :default => ""
   config_param :message, :string, :default => nil
   config_param :message_out_keys, :string, :default => ""
   config_param :time_key, :string, :default => nil
   config_param :time_format, :string, :default => nil
@@ -86,10 +91,10 @@
     messages.each_with_index do |msg, i|
       subject = subjects[i]
       begin
         res = sendmail(subject, msg)
       rescue
-        $log.warn "out_mail: failed to send notice to #{@host}:#{@port}, subject: #{subject}, message: #{msg}"
+        log.warn "out_mail: failed to send notice to #{@host}:#{@port}, subject: #{subject}, message: #{msg}"
       end
     end
 
     chain.next
   end