/// <summary>
/// Converts this grain to a <c>GrainReference</c>
/// </summary>
/// <param name="grain">The grain to convert.</param>
/// <returns>A <c>GrainReference</c> for this grain.</returns>
public static GrainReference AsReference(this Runtime.IAddressable grain)
{
var reference = grain as Runtime.GrainReference;
// When called against an instance of a grain reference class, do nothing
if (reference != null)
{
return(reference);
}
var grainBase = grain as Grain;
if (grainBase != null)
{
return(((Grain)grain).GrainReference);
}
var systemTarget = grain as ISystemTargetBase;
if (systemTarget != null)
{
return(GrainReference.FromGrainId(systemTarget.GrainId, null, systemTarget.Silo));
}
throw new OrleansException(String.Format("AsReference has been called on an unexpected type: {0}.", grain.GetType().FullName));
}
/// <summary>
/// Casts a grain to a specific grain interface.
/// </summary>
/// <typeparam name="TGrainInterface">The type of the grain interface.</typeparam>
/// <param name="grain">The grain to cast.</param>
public static TGrainInterface Cast <TGrainInterface>(this Runtime.IAddressable grain)
{
return(GrainFactory.Cast <TGrainInterface>(grain));
}
/// <summary>
/// Converts this grain to a specific grain interface.
/// </summary>
/// <typeparam name="TGrainInterface">The type of the grain interface.</typeparam>
/// <param name="grain">The grain to convert.</param>
/// <returns>A strongly typed <c>GrainReference</c> of grain interface type TGrainInterface.</returns>
public static TGrainInterface AsReference <TGrainInterface>(this Runtime.IAddressable grain)
{
return(GrainFactory.Cast <TGrainInterface>(grain.AsWeaklyTypedReference()));
}
