// *******************************************************************
/// <summary>
/// This method builds the specified product instance.
/// </summary>
/// <typeparam name="TProduct">The type of product to build.</typeparam>
/// <returns>A new product instance.</returns>
TProduct IBuilder.Build <TProduct>()
{
// If there are no external providers then we'll need to insist
// that the builder contains at least one source.
if (_externalProviders?.Count() == 0)
{
// The builder requires at least one source before it can build
// anything.
if (this.Sources().Count() == 0)
{
throw new BuilderException(
Resources.BuilderBase_NoSources
);
}
}
// Create a product instance.
var product = new TProduct();
// Should we add providers from a parent product?
if (_externalProviders?.Count() > 0)
{
// Add any external providers.
foreach (var provider in _externalProviders)
{
product.AddProvider(provider);
}
}
// Loop and build providers from the sources.
foreach (var source in _sources)
{
// Build up the provider from the source.
var provider = source.Build(this);
// Add the provider to the product.
product.AddProvider(provider);
}
// Initialize the product after building it.
product.Initialize();
// Return the product instance.
return(product);
}
