Batch program to fetch fields from file and update DB

I am looking for a very small program to scan the folder for .txt files and fetch some configured fields using regular expression(pattern search) or/and location based fectch Basically 2 types of searches.. 1. search for a pattern(say reference number) 2. in input .txt file fetch string from line 18, 20 characters starting from 8th position Both of this are configurable through xml file Some basic features.. 1. When program loads, initialize the configurations from [login to view URL] xml file will have configuration of fields to fetch(regular expression and location based), log level, data folder, database details, logs folder, log level, scan interval 2. scan configured folder(data) for .txt files on regular basis 3. once it finds new .txt file, scan for fields and update the database 4. move the file to processed folder, Log the update message or error message in seperate log file(under logs folder)