/**
* Retrieves and returns that ProtocolProviderService that this transaction belongs to, or
* <tt>null</tt> if we couldn't associate it with a provider based on neither the request nor the
* transaction itself.
*
* @param transaction the transaction that we'd like to determine a provider for.
* @return a reference to the <tt>ProtocolProviderServiceSipImpl</tt> that <tt>transaction</tt>
* was associated with or <tt>null</tt> if we couldn't determine which one it is.
*/
private ProtocolProviderServiceSipImpl getServiceData(Transaction transaction) {
ProtocolProviderServiceSipImpl service =
(ProtocolProviderServiceSipImpl)
SipApplicationData.getApplicationData(
transaction.getRequest(), SipApplicationData.KEY_SERVICE);
if (service != null) {
if (logger.isTraceEnabled()) logger.trace("service was found in request data");
return service;
}
service =
(ProtocolProviderServiceSipImpl)
SipApplicationData.getApplicationData(
transaction.getDialog(), SipApplicationData.KEY_SERVICE);
if (service != null) {
if (logger.isTraceEnabled()) logger.trace("service was found in dialog data");
}
return service;
}
