GPS Server Listener / Protocol Translator (JAVA)

Project Description: GPS Server Listener and Protocol Translator Looking to develop a robust server listening GPS protocol translator: Performance Requirements -Use of a robust, multi-threaded socket framework listener to handle multiple simultaneous connections. Protocol Translation Requirements: -able to handle the translation of protocols related to multiple GPS devices. Attached is the protocol need to be done We would need the protocol called GS503 to be done ASAP.