How to use ca.uhn.fhir.model.dstu2.valueset

private String describeStatus(SubscriptionStatusEnum existingStatus) {
  String existingStatusString;
  if (existingStatus != null) {
    existingStatusString = '\'' + existingStatus.getCode() + '\'';
  } else {
    existingStatusString = "null";
  }
  return existingStatusString;
}

@Override
public String toSystemString(StructureDefinitionKindEnum theEnum) {
  return theEnum.getSystem();
}

@Override
public String toCodeString(StructureDefinitionKindEnum theEnum) {
  return theEnum.getCode();
}

  public IFhirResourceDao getSubscriptionDao() {
    return getResourceDao(ResourceTypeEnum.SUBSCRIPTION.getCode());
  }
}

private String extractTransactionUrlOrThrowException(Entry nextEntry, HTTPVerbEnum verb) {
  String url = nextEntry.getRequest().getUrl();
  if (isBlank(url)) {
    throw new InvalidRequestException(getContext().getLocalizer().getMessage(BaseHapiFhirSystemDao.class, "transactionMissingUrl", verb.name()));
  }
  return url;
}

@Override
public Class<? extends IBaseResource> getResourceType() {
  return myFhirContext.getResourceDefinition(ResourceTypeEnum.SUBSCRIPTION.getCode()).getImplementingClass();
}

private String describeStatus(SubscriptionStatusEnum existingStatus) {
  String existingStatusString;
  if (existingStatus != null) {
    existingStatusString = '\'' + existingStatus.getCode() + '\'';
  } else {
    existingStatusString = "null";
  }
  return existingStatusString;
}

private boolean isSubscription(IBaseResource theNewResource) {
  RuntimeResourceDefinition resourceDefinition = myFhirContext.getResourceDefinition(theNewResource);
  return ResourceTypeEnum.SUBSCRIPTION.getCode().equals(resourceDefinition.getName());
}

private void verifyActiveStatus(RestOperationTypeEnum theOperation, Subscription theSubscription, SubscriptionStatusEnum newStatus, SubscriptionStatusEnum theExistingStatus) {
  SubscriptionChannelTypeEnum channelType = theSubscription.getChannel().getTypeElement().getValueAsEnum();
  if (channelType == null) {
    throw new UnprocessableEntityException("Subscription.channel.type must be populated");
  }
  if (channelType == SubscriptionChannelTypeEnum.WEBSOCKET) {
    return;
  }
  if (theExistingStatus != null) {
    throw new UnprocessableEntityException("Subscription.status can not be changed from " + describeStatus(theExistingStatus) + " to " + describeStatus(newStatus));
  }
  if (theSubscription.getStatus() == null) {
    throw new UnprocessableEntityException("Can not " + theOperation.getCode().toLowerCase() + " resource: Subscription.status must be populated on this server");
  }
  throw new UnprocessableEntityException("Subscription.status must be '" + SubscriptionStatusEnum.OFF.getCode() + "' or '" + SubscriptionStatusEnum.REQUESTED.getCode() + "' on a newly created subscription");
}

@Override
public IBundleProvider search(SearchParameterMap theParams) {
  return myDaoRegistry.getResourceDao(ResourceTypeEnum.SEARCHPARAMETER.getCode()).search(theParams);
}

@Override
public void resourceUpdated(RequestDetails theRequest, IBaseResource theOldResource, IBaseResource theNewResource) {
  if (myDao.getContext().getResourceDefinition(theNewResource).getName().equals(ResourceTypeEnum.SUBSCRIPTION.getCode())) {
    verifyStatusOk(RestOperationTypeEnum.UPDATE, theOldResource, theNewResource);
  }
}

@Override
public void resourceUpdated(RequestDetails theRequest, IBaseResource theOldResource, IBaseResource theNewResource) {
  if (myDao.getContext().getResourceDefinition(theNewResource).getName().equals(ResourceTypeEnum.SUBSCRIPTION.getCode())) {
    verifyStatusOk(RestOperationTypeEnum.UPDATE, theOldResource, theNewResource);
  }
}

@Override
public void resourceUpdated(RequestDetails theRequest, IBaseResource theOldResource, IBaseResource theNewResource) {
  if (myDao.getContext().getResourceDefinition(theNewResource).getName().equals(ResourceTypeEnum.SUBSCRIPTION.getCode())) {
    verifyStatusOk(RestOperationTypeEnum.UPDATE, theOldResource, theNewResource);
  }
}

@Override
public void resourceCreated(RequestDetails theRequest, IBaseResource theResource) {
  if (myDao.getContext().getResourceDefinition(theResource).getName().equals(ResourceTypeEnum.SUBSCRIPTION.getCode())) {
    verifyStatusOk(RestOperationTypeEnum.CREATE, null, theResource);
  }
}

@Override
public void resourceCreated(RequestDetails theRequest, IBaseResource theResource) {
  if (myDao.getContext().getResourceDefinition(theResource).getName().equals(ResourceTypeEnum.SUBSCRIPTION.getCode())) {
    verifyStatusOk(RestOperationTypeEnum.CREATE, null, theResource);
  }
}

@Override
public void resourceCreated(RequestDetails theRequest, IBaseResource theResource) {
  if (myDao.getContext().getResourceDefinition(theResource).getName().equals(ResourceTypeEnum.SUBSCRIPTION.getCode())) {
    verifyStatusOk(RestOperationTypeEnum.CREATE, null, theResource);
  }
}

  public void updateSubscriptionRegistryAndPerformMatching(ResourceModifiedMessage theResourceModifiedMessage) {
    IBaseResource resource = theResourceModifiedMessage.getNewPayload(myFhirContext);
    RuntimeResourceDefinition resourceDef = myFhirContext.getResourceDefinition(resource);

    if (resourceDef.getName().equals(ResourceTypeEnum.SUBSCRIPTION.getCode())) {
      mySubscriptionRegistry.registerSubscriptionUnlessAlreadyRegistered(resource);
    }
    mySubscriptionMatchingSubscriber.matchActiveSubscriptionsAndDeliver(theResourceModifiedMessage);
  }
}

@Override
public IBundleProvider search(SearchParameterMap theParams) {
  FhirContext fhirContext = myClient.getFhirContext();
  IBaseBundle bundle = myClient
    .search()
    .forResource(ResourceTypeEnum.SEARCHPARAMETER.getCode())
    .cacheControl(new CacheControlDirective().setNoCache(true))
    .execute();
  return new SimpleBundleProvider(BundleUtil.toListOfResources(fhirContext, bundle));
}

@Override
public IBundleProvider search(SearchParameterMap theMap) {
  FhirContext fhirContext = myClient.getFhirContext();
  String searchURL = ResourceTypeEnum.SUBSCRIPTION.getCode() + theMap.toNormalizedQueryString(myFhirContext);
  IBaseBundle bundle = myClient
    .search()
    .byUrl(searchURL)
    .cacheControl(new CacheControlDirective().setNoCache(true))
    .execute();
  return new SimpleBundleProvider(BundleUtil.toListOfResources(fhirContext, bundle));
}

IIdType subscriptionId = theSubscriptionId;
if (!subscriptionId.hasResourceType()) {
  subscriptionId = subscriptionId.withResourceType(ResourceTypeEnum.SUBSCRIPTION.getCode());