code: private boolean checkConsumerDiscriminatorAccess(DestinationHandler destination,
                                                       String discriminator,
                                                       SecurityContext secContext)
  
                      throws SIDiscriminatorSyntaxException
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(
                          tc,
                          "checkConsumerDiscriminatorAccess",
                          new Object[] { destination,
                                        discriminator,
                                        secContext });
  
          boolean allowed = true;
          // If the discriminator is non-wildcarded, we can check authority to consume on
          // the discriminator.
          if (discriminator != null &&
              !_messageProcessor.getMessageProcessorMatching().isWildCarded(discriminator))
          {
              // set the discriminator into the security context
              secContext.setDiscriminator(discriminator);
              if (!destination.checkDiscriminatorAccess(secContext,
                                                        OperationType.RECEIVE))
              {
                  if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
                      SibTr.exit(tc, "checkConsumerDiscriminatorAccess", "not authorized to consume from this destination's discriminator");
                  // Write an audit record if access is denied
                  SibTr.audit(tc, nls.getFormattedMessage(
                                                          "USER_NOT_AUTH_RECEIVE_ERROR_CWSIP0310",
                                                          new Object[] { destination.getName(),
                                                                        discriminator,
                                                                        secContext.getUserName(false) },
                                                          null));
  
                  allowed = false;
              }
          }
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(tc, "checkConsumerDiscriminatorAccess", Boolean.valueOf(allowed));
          return allowed;
      }
docs: Checks the authority of a consumer to consume from a discriminator