| 摘要 |
A method is provided for performing data mediation in a data communication network, the network being capable of conveying data messages representing requests for data services provided by one or more distributed data resources. The requests have a first format for data access, defining a plurality of message parameters, and the data messages are encoded into a second format for transport in the data communication network. The method involves receiving (250) an incoming data stream (216) from said data communication network; analyzing (250) the incoming data stream to determine an inbound second-format message (212in); processing (252) a part of the inbound second-format message by parsing a selected subset (215) of the message parameters; generating (252) a run-time data structure (234) to represent the parsed message parameters in the selected subset; processing (254) the generated nm-time data structure by applying a data mediation logic (132) which defines actions to be taken upon incoming data messages, said actions including adaptation of the generated data structure if necessary by modifying any of the message parameters in the selected subset and/or adding new message parameters based on the parsed message parameters; building (256) an outbound second-format message (212out) from the inbound second-format message and the generated data structure, as adapted in the previous step; and sending (258) the outbound second-format message in an outgoing data stream (218) on the data communication network.
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