Removed any (put|write)_file_content from the WSF_ or WGI_ OUTPUT classes

Now DEFAULT_SERVICE has to be created instead of inherited.
   - This seems to be better for new user, and this avoid potential conflict and difference when inheriting between the various DEFAULT_SERVICE implementation.
   - remember that DEFAULT_SERVICE, is mainly to help the user to build its very first service.
Use READABLE_STRING_8 as argument whenever it is possible.
Added WSF_RESPONSE_MESSAGE, and WSF_RESPONSE.put_response (a_response_message)
Now WSF_RESPONSE inherit from WGI_RESPONSE

library/server/wsf/src/wsf_response.e

@@ -8,6 +8,9 @@ note
 class
 	WSF_RESPONSE
 
+inherit
+	WGI_RESPONSE
+
 create {WSF_SERVICE}
 	make_from_wgi
 
@@ -55,14 +58,8 @@ feature -- Status setting
 	set_status_code (a_code: INTEGER)
 			-- Set response status code
 			-- Should be done before sending any data back to the client
-		require
-			status_not_set: not status_is_set
-			header_not_committed: not header_committed
 		do
 			wgi_response.set_status_code (a_code)
-		ensure
-			status_code_set: status_code = a_code
-			status_set: status_is_set
 		end
 
 	status_code: INTEGER
@@ -71,18 +68,20 @@ feature -- Status setting
 			Result := wgi_response.status_code
 		end
 
+feature {WGI_RESPONSE} -- Core output operation
+
+	write (s: READABLE_STRING_8)
+			-- Send the string `s'
+			-- this can be used for header and body
+		do
+			wgi_response.write (s)
+		end
+
 feature -- Header output operation
 
 	write_header_text (a_headers: READABLE_STRING_8)
-		require
-			status_set: status_is_set
-			header_not_committed: not header_committed
 		do
 			wgi_response.write_header_text (a_headers)
-		ensure
-			status_set: status_is_set
-			header_committed: header_committed
-			message_writable: message_writable
 		end
 
 	write_header (a_status_code: INTEGER; a_headers: detachable ARRAY [TUPLE [key: READABLE_STRING_8; value: READABLE_STRING_8]])
@@ -114,20 +113,21 @@ feature -- Header output operation
 			message_writable: message_writable
 		end
 
+	write_header_lines (a_lines: ITERABLE [TUPLE [name: READABLE_STRING_8; value: READABLE_STRING_8]])
+		do
+			wgi_response.write_header_lines (a_lines)
+		end
+
 feature -- Output operation
 
 	write_string (s: READABLE_STRING_8)
 			-- Send the string `s'
-		require
-			message_writable: message_writable
 		do
 			wgi_response.write_string (s)
 		end
 
 	write_substring (s: READABLE_STRING_8; a_begin_index, a_end_index: INTEGER)
 			-- Send the substring `s[a_begin_index:a_end_index]'
-		require
-			message_writable: message_writable
 		do
 			wgi_response.write_substring (s, a_begin_index, a_end_index)
 		end
@@ -163,14 +163,6 @@ feature -- Output operation
 			flush
 		end
 
-	write_file_content (fn: READABLE_STRING_8)
-			-- Send the content of file `fn'
-		require
-			message_writable: message_writable
-		do
-			wgi_response.write_file_content (fn)
-		end
-
 	flush
 			-- Flush if it makes sense
 		do
@@ -179,6 +171,17 @@ feature -- Output operation
 
 feature -- Helper
 
+	put_response (obj: WSF_RESPONSE_MESSAGE)
+		require
+			not header_committed
+			not status_is_set
+			not message_committed
+		do
+			obj.send_to (Current)
+		end
+
+feature -- Redirect
+
 	redirect_now_with_custom_status_code (a_url: READABLE_STRING_8; a_status_code: INTEGER)
 			-- Redirect to the given url `a_url' and precise custom `a_status_code'
 			-- Please see http://www.faqs.org/rfcs/rfc2616 to use proper status code.
@@ -205,6 +208,14 @@ feature -- Helper
 			redirect_now_with_custom_status_code (a_url, {HTTP_STATUS_CODE}.moved_permanently)
 		end
 
+feature {WGI_RESPONSE, WGI_SERVICE} -- Commit
+
+	commit
+			-- Commit the current response
+		do
+			wgi_response.commit
+		end
+
 note
 	copyright: "2011-2011, Eiffel Software and others"
 	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"