Communication

[Jacopo Pellegrino]

Hello everyone,

I would like to know if it would be possible to have further explanation about the communication between agents. I looked at the FIPA Skills examples but they are quite simple.

For example I would like to understand how to deal with multiple incoming message with the same performative:

suppose that a species has two actions to send 'inform messages' under certain condition. When I have to receive them, how can I distinguish between them and thus perform a different action for each one?

Another question regards the use of 'protocol'? By default it is set to 'no-protocol' but if I try with:

do send with: [ receivers :: recv, protocol :: 'my-protocol', performative :: 'inform', content :: msg_string];

and then 

write '\t protocol: ' + i.protocol + ' content: ' + i.content;

when looping over informs, i still get the following result:

institution2 received the following informs: 

protocol: no-protocol content: [ciao!!]

So how should I use 'protocol'?

  

Thanks a lot for your help

Jacopo

[Duc An Vo]

Hello Jacopo,

A simple way to let an agent execute different actions basing on some criteria (in the context of FIPA communication) is to use the message content as an indication.

'no-protocol' is a "freestyle" protocol. Its advantage is that the modeller can send whatever message in the corresponding conversation but it 's the responsibility of the modeller to explicitly finish the conversation (i.e., send an 'end_conversation' message to mark the end of the conversation).

Please find in the attach file a simple model that fulfills your requirement.

Cheers,

An.

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[Jacopo Pellegrino]

Ok I'll look at the example, thanks a lot!!