RNAP Message Processing Proceduresn

RNAP Message Processing Procedures

1. Receiver Agent: Query, Reserve and Close Messages

When a HRN agent receives a query message, it will execute as a receiver agent after then
After spawning a thread which are sending a quotation message every negotiation interval indicated by a sender agent, it will send a quotation message
The thread will be triggered by a reserve message

If the message is Reserve message, the receiver agent sends a commit message to a sender agent
The receiver agent triggers the thread which was spawned by a query message to send a quotation message periodically

If a receiver agent receives a close message, it will clear user interface and initialize all data structures for this connection
After then, it sends a release message to a sender agent

2. Sender Agent: Quotation, Commit, Release Messages

After sending a query message, it is waiting for a quotation message to send a reserve message
As soon as it receives a quotation message, it will shows up the price lists which were requested by a query message
The user selects one of those service lists and request to send a reserve message
UpdatingHrn object gets it and calculates the optimized bandwidth based on the budget and the price.
If it gets over the maximum bandwidth set up by a user, it will set the reserve bandwidth to the maximum bandwidth
Otherwise, it sets the calculated bandwidth to reserve bandwidth and sends it to a receiver agent

If a sender agent receives a quotation message in case that it doesn't receive a commit message, it ignores it.
After it receives a commit message, UpdatingHrn object updates the price list and accumulatedCharge frames
Then it updates not only the application information window of HrnMain window, but Statistics information for graphic interface
It shows the reserved bandwidth as well as the measured bandwidth for applications

After sending a close message, if it receives a release message, it initialize the data structure for that application