A METHOD AND SYSTEM FOR DYNAMICALLY CREATING PARSERS IN A MESSAGE BROKER

摘要

A method is disclosed for enhancing a Message Broker operating in a data processing system with parser dynamically created for e-mail like types of messages. The method comprising the steps of, for each type of e-mail like types of messages, creating in memory a Rule-Tree which is a tree based logical representation in memory of the rules of the LL(k) grammar corresponding to the type of the e-mail like types of messages; then, when a message is received and identified by the Message Broker as being one of said e-mail like types, reading the corresponding Rule-Tree and trying to match the LL(k) grammar rules on said message; if a grammar rule is matched, building in memory the Message-Tree which is a tree based logical representation in memory of the message; then, reading the logical representation of the message built in memory in output of the preceding step execution and using it in the following processing step of the Message Broker. The entry of the LL(k) grammar rules by the EAI administrator is preferably done with a graphical editor to bring more dynamicity to the parser creation.