Policy-driven URI template handlers

library/server/wsf/router/wsf_put_helper.e

@@ -0,0 +1,75 @@
+note
+
+	description: "[
+						Policy-driven helpers to implement PUT.
+					  ]"
+	date: "$Date$"
+	revision: "$Revision$"
+
+class WSF_PUT_HELPER
+
+inherit
+
+	WSF_METHOD_HELPER
+		rename
+			send_get_response as do_put
+		redefine
+			execute_new_resource,
+			do_put
+		end
+
+feature -- Basic operations
+
+	execute_new_resource (req: WSF_REQUEST; res: WSF_RESPONSE; a_handler: WSF_SKELETON_HANDLER)
+			-- Write response to non-existing resource requested by  `req.' into `res'.
+			-- Policy routines are available in `a_handler'.
+		do
+			if a_handler.treat_as_moved_permanently (req) then
+				-- TODO 301 Moved permanently response (single location)
+			else
+				handle_content_negotiation (req, res, a_handler, True)
+			end
+		end
+
+	
+feature {NONE} -- Implementation
+
+	do_put (req: WSF_REQUEST; res: WSF_RESPONSE; a_handler: WSF_SKELETON_HANDLER; a_header: HTTP_HEADER;
+		a_media_type, a_language_type, a_character_type, a_compression_type: detachable READABLE_STRING_8; a_new_resource: BOOLEAN)
+			-- Write response to `req' into `res' in accordance with `a_media_type' etc. as a new URI.
+		do
+			a_handler.read_entity (req)
+			if a_handler.is_entity_too_large (req) then
+				handle_request_entity_too_large (req, res, a_handler)
+			else
+				a_handler.check_content_headers (req)
+				if a_handler.content_check_code (req) /= 0 then
+					-- TODO - 415 or 501
+				else
+					a_handler.check_request (req, res)
+					if a_handler.request_check_code (req) = 0 then
+						if a_new_resource then
+							a_handler.create_resource (req, res)
+							-- 201 or 500 (add support for this?)
+						else
+							a_handler.check_conflict (req, res)
+							if a_handler.conflict_check_code (req) = 0 then
+								a_handler.update_resource (req, res)
+								-- 204 or 500 (add support for this?)
+								-- TODO: more support, such as includes_response_entity
+							end
+						end
+					end
+				end
+			end
+		end
+
+	handle_request_entity_too_large (req: WSF_REQUEST; res: WSF_RESPONSE; a_handler: WSF_SKELETON_HANDLER)
+			-- TODO.
+		require
+			-- TODO
+		do
+			-- Need to check if condition is temporary.
+		end
+	
+end