public override Task Invoke(AspectContext context, AspectDelegate next)
{
var dataValidator = context.ServiceProvider.GetService(typeof(IDataValidator)) as IDataValidator;
CheckResolved(dataValidator);
var dataStateFactory = context.ServiceProvider.GetService(typeof(IDataStateFactory)) as IDataStateFactory;
CheckResolved(dataStateFactory);
var dataValidationContext = new DataValidationContext(context);
dataValidator.Validate(dataValidationContext);
context.SetDataValidationContext(dataValidationContext);
var dataState = dataStateFactory.CreateDataState(dataValidationContext);
if (context.Implementation is IDataStateProvider dataStateProvider)
{
dataStateProvider.DataState = dataState;
}
else
{
var implementationTypeInfo = context.Implementation.GetType().GetTypeInfo();
var dataStateProperty = implementationTypeInfo.GetProperty("DataState");
if (dataStateProperty != null && dataStateProperty.CanWrite)
{
dataStateProperty.GetReflector().SetValue(context.Implementation, dataState);
}
}
return(context.Invoke(next));
}
public IDataState CreateDataState(DataValidationContext dataValidationContext)
{
var dataValidationErrors = new DataValidationErrorCollection();
foreach (var error in dataValidationContext.DataMetaDatas.SelectMany(x => x.Errors))
{
dataValidationErrors.Add(error);
}
var isValid = dataValidationContext.DataMetaDatas.All(x => x.State != DataValidationState.Invalid);
return(new DataState(isValid, dataValidationErrors));
}
public static void SetDataValidationContext(this AspectContext aspectContext, DataValidationContext dataValidationContext)
{
if (aspectContext == null)
{
throw new ArgumentNullException(nameof(aspectContext));
}
if (dataValidationContext == null)
{
throw new ArgumentNullException(nameof(dataValidationContext));
}
aspectContext.AdditionalData[DataValidationContextKey] = dataValidationContext;
}
