Refactored persistence with mysql and sqlite to factorize more things with a CMS_STORAGE_SQL .. based only on sql statement execution.

Various changes

library/layout/src/configuration/application_json_configuration_helper.e

@@ -47,7 +47,7 @@ feature -- Application Configuration
 					attached {JSON_OBJECT} l_environments.item (l_envrionment.item) as l_environment_selected and then
 					attached {JSON_STRING} l_environment_selected.item ("connection_string") as l_connection_string
 				then
-					create Result.make (l_driver.item, l_connection_string.unescaped_string_8)
+					create Result.make (l_driver.item, l_connection_string.unescaped_string_32)
 				end
 			end
 		end

library/layout/src/configuration/database_configuration.e

@@ -33,10 +33,65 @@ feature -- Access
 	connection_string: READABLE_STRING_32
 			-- Connection string
 		do
-			Result := "Driver={"+driver+"};" + database_string;
+			Result := "Driver={" + driver + "};" + database_string
 		end
 
+	item (a_param: READABLE_STRING_GENERAL): detachable READABLE_STRING_32
+		local
+			s: READABLE_STRING_32
+			lower_s: READABLE_STRING_32
+			i,j: INTEGER
+			k: STRING_32
+		do
+			create k.make_from_string_general (a_param)
+			k.to_lower
+
+			s := database_string
+			lower_s := s.as_lower
+			i := lower_s.substring_index (k + {STRING_32} "=", 1)
+			if i > 0 then
+				if i = 1 or else s[i-1] = ';' then
+					j := s.index_of (';', i + k.count + 1)
+					if j = 0 then
+						j := s.count + 1
+					end
+					Result := s.substring (i + k.count + 1, j - 1)
+				end
+			end
+		end
+
+	server_name: detachable READABLE_STRING_32
+		do
+			Result := item ("Server")
+		end
+
+	port: INTEGER
+		do
+			if
+				attached item ("Port") as l_port and then
+				l_port.is_integer
+			then
+				Result := l_port.to_integer
+			end
+		end
+
+	database_name: detachable READABLE_STRING_32
+		do
+			Result := item ("Database")
+		end
+
+	user_id: detachable READABLE_STRING_32
+		do
+			Result := item ("Uid")
+		end
+
+	user_password: detachable READABLE_STRING_32
+		do
+			Result := item ("Pwd")
+		end
+
+
 note
-	copyright: "2011-2014, Javier Velilla, Jocelyn Fiat, Eiffel Software and others"
+	copyright: "2011-2015, Javier Velilla, Jocelyn Fiat, Eiffel Software and others"
 	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
 end

library/layout/src/logger/shared_logger.e

@@ -82,23 +82,26 @@ feature {NONE} -- JSON
 		do
 			create Result
 			if attached json_file_from (a_path) as json_file then
-			 l_parser := new_json_parser (json_file)
-			 if  attached {JSON_OBJECT} l_parser.parse as jv and then l_parser.is_parsed and then
-			     attached {JSON_OBJECT} jv.item ("logger") as l_logger and then
-			     attached {JSON_STRING} l_logger.item ("backup_count") as l_count and then
-			     attached {JSON_STRING} l_logger.item ("level") as l_level then
-			     Result.set_level (l_level.item)
-			     if l_count.item.is_natural then
-			     	Result.set_backup_count (l_count.item.to_natural)
-			     end
-			 end
+				l_parser := new_json_parser (json_file)
+				if  attached {JSON_OBJECT} l_parser.parse as jv and then l_parser.is_parsed and then
+					attached {JSON_OBJECT} jv.item ("logger") as l_logger and then
+					attached {JSON_STRING} l_logger.item ("backup_count") as l_count and then
+					attached {JSON_STRING} l_logger.item ("level") as l_level then
+					Result.set_level (l_level.item)
+					if l_count.item.is_natural then
+						Result.set_backup_count (l_count.item.to_natural)
+					end
+				end
 			end
 		end
 
-
 	json_file_from (a_fn: PATH): detachable STRING
+		local
+			ut: FILE_UTILITIES
 		do
-			Result := (create {JSON_FILE_READER}).read_json_from (a_fn.name.out)
+			if ut.file_path_exists (a_fn) then
+				Result := (create {JSON_FILE_READER}).read_json_from (a_fn.name)
+			end
 		end
 
 	new_json_parser (a_string: STRING): JSON_PARSER