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[xmlblaster] Rule Based Publishing
I'm planning to have a client connected to xmlBlaster which subscribes a
certain number of messages. This client is able to publish some other
messages. However the content of these published messages should be
dependent on the content of the subscribed messages.
I imagine a list of rules which get the subscribed messages as an input
and decide whether a certain message have to be published or not or a
message has to have a certain content.
This would be like a function: activity is dependent on the airTemperature
if airTemperature > 30C
if waterTemperature > 25C
But to be very flexible, I'd like to change the rules dynamically.
I.e. all of a sudden I don't like CoolBeer any longer and would prefer
CoolWhiteWine. Normally the process would be stopped, and a new one can be
started now. But I need to have a programmer, a compiler and so on. My
imagination is that the rule can be a message itself. And therefore can be
published and changed like every other message too.
How could I approach this requirement?
Could it be just another plugin?
How could the rules be interpreted?
Any suggestions, ideas or comments are very welcome.