/// <summary>
/// The data service method to get the sales tax group for the given predicates.
/// </summary>
/// <param name="request">The data service request.</param>
/// <returns>The data service response.</returns>
private SingleEntityDataServiceResponse <string> GetSalesTaxGroup(GetSalesTaxGroupDataRequest request)
{
ThrowIf.NullOrEmpty(request.Predicates, "predicates");
var taxDataManager = this.GetDataManagerInstance(request.RequestContext);
TaxL2CacheDataStoreAccessor level2CacheDataAccessor = (TaxL2CacheDataStoreAccessor)taxDataManager.DataStoreManagerInstance.RegisteredAccessors[DataStoreType.L2Cache];
bool found;
bool updateL2Cache;
string result = DataManager.GetDataFromCache(() => level2CacheDataAccessor.GetSalesTaxGroup(request.Predicates), out found, out updateL2Cache);
if (!found)
{
result = string.Empty;
ParameterSet parameters = new ParameterSet();
foreach (var predicate in request.Predicates)
{
parameters["nvc_" + predicate.Key] = predicate.Value;
}
SalesTaxGroup group;
using (SqlServerDatabaseContext databaseContext = new SqlServerDatabaseContext(request))
{
group = databaseContext.ExecuteStoredProcedure <SalesTaxGroup>(GetTaxRegimeSprocName, parameters).FirstOrDefault();
}
if (group != null)
{
result = group.TaxGroupName;
}
updateL2Cache &= result != null;
}
if (updateL2Cache)
{
level2CacheDataAccessor.PutSalesTaxGroup(request.Predicates, result);
}
return(new SingleEntityDataServiceResponse <string>(result));
}
/// <summary>
/// Gets the tax regime.
/// </summary>
/// <param name="context">The request context.</param>
/// <param name="shippingAddress">Shipping address.</param>
/// <returns>
/// The sales tax regime information.
/// </returns>
internal static string GetTaxRegime(RequestContext context, Address shippingAddress)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (context.Runtime == null)
{
throw new ArgumentNullException("context", "context.Runtime");
}
if (shippingAddress == null)
{
throw new ArgumentNullException("shippingAddress");
}
if (string.IsNullOrWhiteSpace(shippingAddress.ThreeLetterISORegionName) &&
string.IsNullOrWhiteSpace(shippingAddress.TwoLetterISORegionName))
{
throw new ArgumentNullException("shippingAddress", "shippingAddress ISORegionName");
}
string taxRegime = string.Empty;
// If address has a tax group, then return this tax group.
if (!string.IsNullOrWhiteSpace(shippingAddress.TaxGroup))
{
taxRegime = shippingAddress.TaxGroup;
return(taxRegime);
}
Dictionary <string, string> predicates = new Dictionary <string, string>();
var addressComponentsFilterHandlers = BuildDbtFilterList();
for (int i = 0; i < addressComponentsFilterHandlers.Count; i++)
{
predicates.Clear();
for (int j = i; j < addressComponentsFilterHandlers.Count; j++)
{
if (addressComponentsFilterHandlers[j].CanHandle(shippingAddress))
{
addressComponentsFilterHandlers[j].Handle(shippingAddress, predicates);
}
}
GetSalesTaxGroupDataRequest dataRequest = new GetSalesTaxGroupDataRequest(predicates);
taxRegime = context.Execute <SingleEntityDataServiceResponse <string> >(dataRequest).Entity;
if (!string.IsNullOrWhiteSpace(taxRegime))
{
break;
}
}
if (string.IsNullOrWhiteSpace(taxRegime))
{
InvalidTaxGroupNotification notification = new InvalidTaxGroupNotification(shippingAddress);
context.Notify(notification);
}
return(taxRegime);
}
