/// <summary>
/// Creates a new event instance based on the specified type identifier.
/// </summary>
public Event CreateEvent(int typeId)
{
// Try link-local event factory first.
Event result = EventFactory.Create(typeId);
if (!ReferenceEquals(result, null))
{
return(result);
}
// If not fount, try the global event factory.
return(EventFactory.Global.Create(typeId));
}
/// <summary>
/// Decodes a Cell-derived objects out of the underlying buffer.
/// </summary>
public void Read <T>(out T value) where T : Cell, new()
{
value = null;
int length;
ReadNonnegative(out length);
if (length == 0)
{
return;
}
int marker = buffer.Position + length;
Type type = typeof(T);
Type eventType = typeof(Event);
if (type.IsSubclassOf(eventType) || type == eventType)
{
int typeId;
Read(out typeId);
Event e = null;
if (!ReferenceEquals(eventFactory, null))
{
e = eventFactory.Create(typeId);
}
if (ReferenceEquals(e, null))
{
e = EventFactory.Global.Create(typeId);
}
if (ReferenceEquals(e, null))
{
Trace.Error("error deserializing {0}: unknown event type id {1}",
type.Name, typeId);
}
value = (T)((Cell)e);
}
else
{
value = new T();
}
if (!ReferenceEquals(value, null))
{
value.Deserialize(this);
}
if (buffer.Position != marker)
{
buffer.Position = marker;
}
}