code: public ConsumableKey attachToDurableSubscription(
                                                       LocalConsumerPoint consumerPoint,
                                                       ConsumerDispatcherState subState)
                      throws
                      SIDurableSubscriptionMismatchException,
                      SIDurableSubscriptionNotFoundException,
                      SIDestinationLockedException,
                      SISelectorSyntaxException,
                      SIDiscriminatorSyntaxException,
                      SINotPossibleInCurrentConfigurationException,
                      SIResourceException
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(
                          tc,
                          "attachToDurableSubscription",
                          new Object[] { consumerPoint, subState });
  
          // Extract the UUID for the durable home and see whether this is a local
          // or remote attach
          ConsumableKey result = null;
          SIBUuid8 durableHomeID =
                          _messageProcessor.mapMeNameToUuid(subState.getDurableHome());
          if (durableHomeID == null)
          {
              if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
                  SibTr.exit(tc, "attachToDurableSubscription", "SIResourceException");
              // Lookup failed, throw an excepiton
              throw new SIResourceException(
                              nls.getFormattedMessage(
                                                      "REMOTE_ME_MAPPING_ERROR_CWSIP0156",
                                                      new Object[] { subState.getDurableHome() },
                                                      null));
          }
  
          // Is durableHome local?
          if (durableHomeID.equals(_messageProcessor.getMessagingEngineUuid()))
          {
              // Directly attached
              result = attachToLocalDurableSubscription(consumerPoint, subState);
          } else
          {
              // Stash the durableHomeID in the ConsumerDispatcherState
              subState.setRemoteMEUuid(durableHomeID);
              // Remote attach
              result =
                              attachToRemoteDurableSubscription(
                                                                consumerPoint,
                                                                subState,
                                                                durableHomeID);
          }
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(tc, "attachToDurableSubscription", result);
  
          return result;
      }
docs: Attaches to a created DurableSubscription
  
  Checks that there are no active subscriptions (unless it supports cloning)
  
  Checks that the durable subscription exists :
  
  @param consumerPoint