lib/em-http/http_header.rb in em-http-request-1.0.3 vs lib/em-http/http_header.rb in em-http-request-1.1.0

@@ -23,11 +23,11 @@
       self[HttpClient::LAST_MODIFIED]
     end
 
     # HTTP response status as an integer
     def status
-      Integer(http_status) rescue 0
+      @status ||= Integer(http_status) rescue 0
     end
 
     # Length of content as an integer, or nil if chunked/unspecified
     def content_length
       @content_length ||= ((s = self[HttpClient::CONTENT_LENGTH]) &&
@@ -56,8 +56,28 @@
       self[HttpClient::LOCATION]
     end
 
     def [](key)
       super(key) || super(key.upcase.gsub('-','_'))
+    end
+
+    def informational?
+      100 <= status && 200 > status
+    end
+
+    def successful?
+      200 <= status && 300 > status
+    end
+
+    def redirection?
+      300 <= status && 400 > status
+    end
+
+    def client_error?
+      400 <= status && 500 > status
+    end
+
+    def server_error?
+      500 <= status && 600 > status
     end
   end
 end