exception while registering OMM client

Hi Team,

We are using RFA C++ Version 8.2 to consume market data. We have a question regarding what happen when we encounter exception while sending subscription request i.e registerClient call for particular instrument.

pOMMConsumer->registerClient(m_pEventQueue, &ommItemIntSpec, *this, NULL);

Do we receive any event (rfa::common::Event) in this scenario? If yes which event we receive?

Thank you for your support.

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Gurpreet

Hello @mktdata

You will need to post the exception details for us to confirm. Most likely, the exception cause might be the invalid usage, in which case the subscription request has been unsuccessful, and hence no even message would be generated.

You can turn on the OMM logging to see, if the request message actually registered with the SDK and was sent down the wire to the infrastructure.

mktdata

https://community.developers.refinitiv.com/discussion/comment/128123#Comment_128123

Thank you for your response. Not any particular exception just want to understand the behavior. If any exception occurred then do we receive any event (rfa::common::Event) in this scenario? How can we handle the deletion of OMMClient in this scenario. As per the answer on below question :

The application must delete an omm client after the associated stream was closed (ComplEventEnum or isEventStreamClosed = true).

https://community.developers.refinitiv.com/discussion/133110/application-crash-in-rfa-common-eventqueueimpl-dispatch-long-from-librfa-common-so

Pseudo code :

try
{
OMMConsumer->registerClient(m_pEventQueue, &ommItemIntSpec, *this, NULL);
}
catch (rfa::common::Exception& e)
{
RFAExceptionHandler::GetInstance().CheckException(e);
return false;
}
catch(std::exception& e)
{
cerr << "OMMClient::Subscribe - Stdexception : " << e.what() << " for RIC : " << m_sRIC << endl;
return false;
}
catch(...)
{
cerr << "OMMClient::Subscribe - GenericException for RIC : " << m_sRIC << endl;
return false;
}

Thank

Jirapongse

@mktdata

If an exception is thrown during the registerClient call, it indicates that the method has failed. As a result, the application will not receive any events for that item.

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