public Task DeliverItem(object item, StreamSequenceToken token)
{
T typedItem;
try
{
typedItem = (T)item;
}
catch (InvalidCastException)
{
// We got an illegal item on the stream -- close it with a Cast exception
throw new InvalidCastException("Received an item of type " + item.GetType().Name + ", expected " + typeof(T).FullName);
}
return((localObserver == null)
? TaskDone.Done
: localObserver.OnNextAsync(typedItem, token));
}
public async Task <StreamSequenceToken> DeliverItem(object item, StreamSequenceToken token)
{
if (dirty)
{
dirty = false;
if (expectedToken != null)
{
return(expectedToken);
}
}
T typedItem;
try
{
typedItem = (T)item;
}
catch (InvalidCastException)
{
// We got an illegal item on the stream -- close it with a Cast exception
throw new InvalidCastException("Received an item of type " + item.GetType().Name + ", expected " + typeof(T).FullName);
}
if (localObserver != null)
{
await localObserver.OnNextAsync(typedItem, token);
}
if (dirty)
{
dirty = false;
if (expectedToken != null)
{
return(expectedToken);
}
}
if (token != null && token.Newer(expectedToken))
{
expectedToken = token;
}
return(default(StreamSequenceToken));
}
