Method and system for converting computer mail messages using an

Details Method and system for converting computer mail messages using an Method and system for converting computer mail messages using an

1994-06-07

1997-05-06

Teska, Kevin J.

Multiplex communications

Wide area network

Packet switching

39520018, 39520001, 370428, G06F 1300, H04L 1254

Patent

active

056279973

ABSTRACT:
A method and system for converting the format of computer mail messages using a dynamic set of conversion routines is provided. In a preferred embodiment, a message format conversion engine uses an updatable registry to access an extensible set of available conversion routines. The registry contains selection information and invocation information for each of the available conversion routines. The selection information in each case describes the classes of messages that the conversion routine is potentially capable of converting. The invocation information comprises information necessary to invoke the conversion routine. When a message is submitted to the conversion engine, the engine reads the selection information stored in the registry. The engine then uses the read selection information to select one of the available conversion routines likely to be capable of converting the message. The engine reads the invocation information stored in the registry for the selected conversion routine and uses it to invoke the selected conversion routine to convert the format of the message. In a further preferred embodiment, the conversion engine invokes the selected conversion routine in two stages. The engine first invokes a query method of a selected conversion routine, which indicates whether the selected conversion routine is actually capable of converting the message. If the invocation of the query method indicates that the selected conversion routine is actually capable of converting the message, then the engine invokes a convert method of the selected conversion routine in order to convert the format of the message.

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