private ProductEntity TranslateProductContractDataToProductEntity(
Product product)
{
return new ProductEntity
{
ProductID = product.ProductID,
ProductName = product.ProductName,
QuantityPerUnit = product.QuantityPerUnit,
UnitPrice = product.UnitPrice,
Discontinued = product.Discontinued
};
}
public Product GetProduct(int id)
{
/*
// TODO: call business logic layer to retrieve product
Product product = new Product();
product.ProductID = id;
product.ProductName =
"fake product name from service layer";
product.UnitPrice = 10.0m;
product.QuantityPerUnit = "fake QPU";
return product;
*/
ProductBDO productBDO = null;
try
{
productBDO = productLogic.GetProduct(id);
}
catch (Exception e)
{
string msg = e.Message;
string reason = "GetProduct Exception";
throw new FaultException<ProductFault>
(new ProductFault(msg), reason);
}
if (productBDO == null)
{
string msg =
string.Format("No product found for id {0}",
id);
string reason = "GetProduct Empty Product";
if (id == 999)
{
throw new Exception(msg);
}
else
{
throw new FaultException<ProductFault>
(new ProductFault(msg), reason);
}
}
Product product = new Product();
TranslateProductBDOToProductDTO(productBDO, product);
return product;
}
public bool UpdateProduct(Product product,
ref string message)
{
bool result = true;
// first check to see if it is a valid price
if (product.UnitPrice <= 0)
{
message = "Price cannot be <= 0";
result = false;
}
// ProductName can't be empty
else if (string.IsNullOrEmpty(product.ProductName))
{
message = "Product name cannot be empty";
result = false;
}
// QuantityPerUnit can't be empty
else if (string.IsNullOrEmpty(product.QuantityPerUnit))
{
message = "Quantity cannot be empty";
result = false;
}
else
{
ProductBDO productBDO = new ProductBDO();
TranslateProductDTOToProductBDO(product, productBDO);
try
{
result = productLogic.UpdateProduct(
productBDO, ref message);
}
catch (Exception e)
{
string msg = e.Message;
string reason = "UpdateProduct Exception";
throw new FaultException<ProductFault>
(new ProductFault(msg), reason);
}
}
return result;
}
private void TranslateProductDTOToProductBDO(
Product product,
ProductBDO productBDO)
{
productBDO.ProductID = product.ProductID;
productBDO.ProductName = product.ProductName;
productBDO.QuantityPerUnit = product.QuantityPerUnit;
productBDO.UnitPrice = product.UnitPrice;
productBDO.Discontinued = product.Discontinued;
}
public bool UpdateProduct(Product product)
{
var productEntity = TranslateProductContractDataToProductEntity(product);
return _productLogic.UpdateProduct(productEntity);
}