refactor: make the RequestHandler classes callable

Whenever a RequestHandler class is called we instantiate it with the request.
Then we call handle on the instance. This way we can access the request and
its content via accessors rather than only in the handle method.

1 files changed, 9 insertions, 3 deletions

diff --git a/lib/nickserver/request_handlers/invalid_email_handler.rb b/lib/nickserver/request_handlers/invalid_email_handler.rb
index eaf8156..bb98f65 100644
--- a/lib/nickserver/request_handlers/invalid_email_handler.rb
+++ b/lib/nickserver/request_handlers/invalid_email_handler.rb
@@ -1,15 +1,21 @@
+require 'nickserver/request_handlers/base'
 require 'nickserver/email_address'
 require 'nickserver/error_response'
 
 module Nickserver
   module RequestHandlers
-    class InvalidEmailHandler
-      def call(request)
+    class InvalidEmailHandler < Base
+
+      def handle
         return unless request.email
-        email = EmailAddress.new(request.email)
         ErrorResponse.new("Not a valid address") if email.invalid?
       end
 
+      protected
+
+      def email
+        @email ||= EmailAddress.new(request.email)
+      end
     end
   end
 end