private static Type EnsureElementType(
this ApiContext context,
string namespaceName,
string name)
{
Type elementType = null;
var mapper = context.GetApiService <IModelMapper>();
if (mapper != null)
{
if (namespaceName == null)
{
mapper.TryGetRelevantType(context, name, out elementType);
}
else
{
mapper.TryGetRelevantType(context, namespaceName, name, out elementType);
}
}
if (elementType == null)
{
throw new NotSupportedException(string.Format(
CultureInfo.InvariantCulture,
Resources.ElementTypeNotFound,
name));
}
return(elementType);
}
/// <summary>
/// Asynchronously gets an API model using an API context.
/// </summary>
/// <param name="context">
/// An API context.
/// </param>
/// <param name="cancellationToken">
/// An optional cancellation token.
/// </param>
/// <returns>
/// A task that represents the asynchronous
/// operation whose result is the API model.
/// </returns>
public static async Task <IEdmModel> GetModelAsync(
this ApiContext context,
CancellationToken cancellationToken = default(CancellationToken))
{
Ensure.NotNull(context, "context");
var config = context.Configuration;
if (config.Model != null)
{
return(config.Model);
}
var builder = context.GetApiService <IModelBuilder>();
if (builder == null)
{
throw new InvalidOperationException(Resources.ModelBuilderNotRegistered);
}
Task <IEdmModel> running;
var source = config.CompeteModelGeneration(out running);
if (source == null)
{
return(await running);
}
try
{
var buildContext = new ModelContext(context);
var model = await builder.GetModelAsync(buildContext, cancellationToken);
source.SetResult(model);
return(model);
}
catch (AggregateException e)
{
source.SetException(e.InnerExceptions);
throw;
}
catch (Exception e)
{
source.SetException(e);
throw;
}
}
private static PropertyBag GetPropertyBag(this ApiContext context)
{
Ensure.NotNull(context, "context");
return(context.GetApiService <PropertyBag>());
}