/// <summary>
/// Process one inbound Chunk, returning a list of equivalent ArchiveRtNav objects, or null.
/// </summary>
/// <param name="rtobj"></param>
/// <returns></returns>
public List <object> Accept(object rtobj)
{
List <object> rtObjects = new List <object>();
if (rtobj is CP3.Network.Chunking.Chunk)
{
CP3.Network.Chunking.Chunk chunk = (CP3.Network.Chunking.Chunk)rtobj;
Debug.WriteLine("Receiving chunk: " + chunk.FrameSequence.ToString());
object message = m_ChunkAssembler.Assemble(chunk);
if (message is IEnumerable <object> )
{
foreach (CP3.Network.Messages.Message m in ((IEnumerable <object>)message))
{
//Debug.WriteLine("Process Message Graph: " + m.ToString());
ProcessMessageGraph(m, rtObjects);
string s = m_Cache.GetWarnings();
if (s != null)
{
warningLog.Add(s);
}
}
}
else
{
return(null);
}
}
else
{
string s = "CP3Manager: Input object is not a Chunk (ignoring): " + rtobj.ToString();
warningLog.Add(s);
return(null);
}
return(rtObjects);
}
/// <summary>
/// if the chunk identifies the role, return the numeric value. Also look for the human name of the presenter.
/// 1:instructor;2:shared display;3:student;other vaules:unknown.
/// </summary>
/// <param name="chunk"></param>
/// <param name="presenterName"></param>
/// <returns></returns>
public static int AnalyzeChunk(UW.ClassroomPresenter.Network.Chunking.Chunk chunk, out string presenterName)
{
presenterName = "";
if (chunk.NumberOfChunksInMessage == 1)
{
MemoryStream ms = new MemoryStream(chunk.Data);
BinaryFormatter formatter = new BinaryFormatter();
object decoded = null;
try {
decoded = formatter.Deserialize(ms);
}
catch (Exception e)
{ // Most likely a new or unknown message type
Debug.WriteLine(e.ToString());
}
if (decoded is CP3.Network.Messages.Message)
{
CP3.Network.Messages.Message m = (CP3.Network.Messages.Message)decoded;
if (m is CP3Msgs.PresentationInformationMessage)
{
CP3Msgs.PresentationInformationMessage pim = (CP3Msgs.PresentationInformationMessage)m;
return(1);
}
else if (m is CP3.Network.Messages.Network.ParticipantGroupAddedMessage)
{
CP3.Network.Messages.Network.ParticipantGroupAddedMessage gim = (CP3.Network.Messages.Network.ParticipantGroupAddedMessage)m;
if (gim.Singleton)
{
presenterName = gim.FriendlyName;
}
return(0);
}
else if (m is UW.ClassroomPresenter.Network.Messages.Network.InstructorMessage)
{
Debug.WriteLine(m.ToString());
return(1);
}
else if (m is UW.ClassroomPresenter.Network.Messages.Network.StudentMessage)
{
Debug.WriteLine(m.ToString());
return(3);
}
else if (m is UW.ClassroomPresenter.Network.Messages.Network.PublicMessage)
{
Debug.WriteLine(m.ToString());
return(2);
}
}
}
return(0);
}
private void addCp3Decks(UW.ClassroomPresenter.Network.Chunking.Chunk chunk)
{
if (chunk.NumberOfChunksInMessage == 1)
{
MemoryStream ms = new MemoryStream(chunk.Data);
BinaryFormatter bf = new BinaryFormatter();
Object o = bf.Deserialize(ms);
if (o is CP3.Network.Messages.Message)
{
ProcessCP3MessageGraph((CP3.Network.Messages.Message)o);
}
}
else
{
Debug.WriteLine("Warning: DeckMatcher does not yet support multi-chunk messages");
}
}
private void AcceptCP3Chunk(UW.ClassroomPresenter.Network.Chunking.Chunk chunk)
{
List <object> rtObjList = cp3Mgr.Accept(chunk);
if ((rtObjList == null) || (rtObjList.Count == 0))
{
if (cp3Mgr.WarningLog != null)
{
foreach (string s in cp3Mgr.WarningLog)
{
Debug.WriteLine(s);
}
cp3Mgr.WarningLog.Clear();
}
FilterCP3RTUpdate();
return;
}
foreach (object rto in rtObjList)
{
if (rto is ArchiveRTNav.RTUpdate)
{
Debug.WriteLine("**CP3Mgr returns RtUpdate: " + ((RTUpdate)rto).ToString());
UpdateRTUpdate((RTUpdate)rto);
FilterCP3RTUpdate();
}
else if (rto is ArchiveRTNav.RTDrawStroke)
{
FilterRTDrawStroke((RTDrawStroke)rto);
}
else if (rto is ArchiveRTNav.RTDeleteStroke)
{
FilterRTDeleteStroke((RTDeleteStroke)rto);
}
else if (rto is ArchiveRTNav.RTTextAnnotation)
{
FilterRTTextAnnotation((RTTextAnnotation)rto);
}
else if (rto is ArchiveRTNav.RTImageAnnotation)
{
FilterRTImageAnnotation((RTImageAnnotation)rto);
}
else if ((rto is ArchiveRTNav.RTDeleteTextAnnotation))
{
FilterRTDeleteTextAnnotation((RTDeleteTextAnnotation)rto);
}
else if ((rto is ArchiveRTNav.RTDeleteAnnotation))
{
FilterRTDeleteAnnotation((RTDeleteAnnotation)rto);
}
else if (rto is ArchiveRTNav.RTEraseLayer)
{
ArchiveRTNav.RTEraseLayer rtel = (RTEraseLayer)rto;
BufferChunk bc = new BufferChunk(Helpers.ObjectToByteArray(rtel));
enqueueMain(new WorkItem(bc, PacketType.ClearScribble, rtel.SlideIndex, rtel.DeckGuid));
}
else if (rto is ArchiveRTNav.RTQuickPoll)
{
ArchiveRTNav.RTQuickPoll rtqp = (RTQuickPoll)rto;
BufferChunk bc = new BufferChunk(Helpers.ObjectToByteArray(rtqp));
enqueueMain(new WorkItem(bc, PacketType.RTQuickPoll, rtqp.SlideIndex, rtqp.DeckGuid));
}
else
{
Debug.WriteLine("CP3Manager returned unhandled archive type: " + rto.GetType().ToString());
}
}
}
