/// <summary>
/// When implemented by a class, handles an <see cref="Exception"/> by converting it to
/// the corresponding <see cref="FaultException{T}"/>.
/// </summary>
/// <param name="exception">The exception to handle.</param>
/// <param name="handlingInstanceId">The unique ID attached to the handling chain for this handling instance.</param>
/// <returns>Modified exception to pass to the next exceptionHandlerData in the chain.</returns>
public Exception HandleException(
Exception exception,
Guid handlingInstanceId)
{
var exceptionType = exception.GetType();
Func <Exception, Fault> factory = null;
// if we cannot find exact match go up the inheritance tree. finally we must stop at Exception.
do
{
factory = Fault.GetExceptionToFaultFactory(exceptionType);
if (factory == null)
{
exceptionType = exceptionType.BaseType;
}
}while (factory == null);
var fault = factory(exception);
exception.Data[nameof(fault.HandlingInstanceId)] = handlingInstanceId;
fault.HandlingInstanceId = handlingInstanceId;
var faultType = fault.GetType();
return((Exception)typeof(WebFaultException <>)
.MakeGenericType(faultType)
.GetConstructor(new Type[] { faultType, typeof(HttpStatusCode) })
.Invoke(new object[] { fault, fault.HttpStatusCode })
);
}