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From AboutData to ProxyBusObject missing SessionId

asked 2015-09-22 09:43:54 -0800

anonymous user

Anonymous

updated 2015-09-22 09:44:16 -0800

From the ajn::AboutListener I got all the about data from an object. But looking at the ProxyBusObject: ProxyBusObject (BusAttachment &bus, const char *service, const char *path, SessionId sessionId, bool secure=false) I know everything I need, except the SessionId.

-> How to get the SessionId to get a ProxyBusObject for an Object I discovered over the AboutListener ? (or is there a better way to discover objects and get ProxyBusObjects for them?)

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you should ask on the mailing list. https://lists.allseenalliance.org/mailman/listinfo/allseen-core

ry.jones ( 2015-09-23 15:10:04 -0800 )edit

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answered 2015-09-24 00:22:13 -0800

praveenb gravatar image

About is a discovery mechanism by which providers can announce their capabilities (a.k.a the interfaces they implement) and seekers can find peers with specific capabilities.

After the discovery phase between two peers (provider and seeker) is complete, a session needs to be established using JoinSession API between these two peers. Once the session formation is complete which results in a sessionId, a ProxyBusObject can be created using that sessionId for further communication.

JoinSession API requires the following:

  • Name of the peer which can be obtained from AboutListener::Announced callback
  • SessionPort to which the peer has bound to which can also be obtained from AboutListener::Announced callback

The sample applications that can help are:

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Asked: 2015-09-22 09:43:54 -0800

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Last updated: Sep 24 '15