Added abstraction of cms storage on file system. (mostly helpers features).

src/persistence/sql/cms_storage_fs_i.e

@@ -0,0 +1,107 @@
+note
+	description: "Interface used to implement CMS Storage based on File system."
+	date: "$Date: 2015-02-13 13:08:13 +0100 (ven., 13 févr. 2015) $"
+	revision: "$Revision: 96616 $"
+
+deferred class
+	CMS_STORAGE_FS_I
+
+inherit
+	SHARED_LOGGER
+
+feature {NONE} -- Initialization
+
+	make (a_location: PATH; a_api: CMS_API)
+		do
+			location := a_location
+			api := a_api
+			create error_handler.make
+		end
+
+feature -- Access
+
+	api: CMS_API
+			-- Associated CMS api.
+
+	location: PATH
+			-- File system location.
+
+feature -- Error handler
+
+	error_handler: ERROR_HANDLER
+			-- Error handler.
+
+	has_error: BOOLEAN
+			-- Last operation reported error.
+		do
+			Result := error_handler.has_error
+		end
+
+	reset_error
+			-- Reset errors.
+		do
+			error_handler.reset
+		end
+
+feature -- Helpers
+
+	save_to_file (a_text: STRING; opt_name: detachable READABLE_STRING_GENERAL)
+		local
+			s: READABLE_STRING_GENERAL
+			now: DATE_TIME
+			fut: WSF_FILE_UTILITIES [RAW_FILE]
+		do
+			create fut
+			if opt_name /= Void then
+				s := opt_name
+			else
+				create now.make_now_utc
+				s := date_to_yyyymmdd_hhmmss_string (now)
+			end
+			if attached fut.new_file (location.extended (s)) as f then
+				f.put_string (a_text)
+				f.close
+			else
+				error_handler.add_custom_error (0, "saving failure", Void)
+			end
+		end
+
+	date_to_yyyymmdd_hhmmss_string (d: DATE_TIME): STRING
+		local
+			i: INTEGER
+		do
+			create Result.make_empty
+			Result.append_integer (d.year)
+			Result.append_character ('-')
+			i := d.month
+			if i < 10 then
+				Result.append_integer (0)
+			end
+			Result.append_integer (i)
+			Result.append_character ('-')
+			i := d.day
+			if i < 10 then
+				Result.append_integer (0)
+			end
+			Result.append_integer (i)
+			Result.append_character ('_')
+			i := d.hour
+			if i < 10 then
+				Result.append_integer (0)
+			end
+			Result.append_integer (i)
+			Result.append_character ('-')
+			i := d.minute
+			if i < 10 then
+				Result.append_integer (0)
+			end
+			Result.append_integer (i)
+			Result.append_character ('-')
+			i := d.second
+			if i < 10 then
+				Result.append_integer (0)
+			end
+			Result.append_integer (i)
+		end
+
+end