private static void NewInstanceRPCHandler <T, I>(PacketHeader header, Connection connection, string instanceName) where T : I, new()
{
lock (locker)
{
string instanceId = GetInstanceId(typeof(T).Name + instanceName + connection.ConnectionInfo.NetworkIdentifier.ToString());
RPCRemoteObject wrapper = null;
if (!RPCObjectsById.TryGetValue(instanceId, out wrapper))
{
var instance = new T();
wrapper = new RPCRemoteObject(instance, typeof(I), RPCRemoteObject.RPCObjectType.Private, instanceId, timeoutByInterfaceType[typeof(I)]);
RPCObjectsById.Add(instanceId, wrapper);
}
wrapper.AddClientSubscription <T, I>(connection);
if (!newConnectionByIdHandlers.ContainsKey(typeof(I)))
{
var del = new NetworkComms.PacketHandlerCallBackDelegate <string>(RetrieveByIDRPCHandler <T, I>);
serverConnection.AppendIncomingPacketHandler <string>(typeof(I).Name + "-NEW-RPC-CONNECTION-BY-ID", del);
newConnectionByIdHandlers.Add(typeof(I), del);
}
string returnPacketType = header.GetOption(PacketHeaderStringItems.RequestedReturnPacketType);
connection.SendObject(returnPacketType, instanceId);
}
}
private static void RunRPCFunctionHandler <T, I>(PacketHeader header, Connection connection, RemoteCallWrapper wrapper) where T : I
{
I instance = default(I);
MethodInfo funcRef = typeof(I).GetMethod(wrapper.name);
try
{
lock (locker)
{
instance = (I)(RPCObjectsById[wrapper.instanceId].RPCObject);
}
}
catch (Exception)
{
wrapper.result = null;
wrapper.Exception = "SERVER SIDE EXCEPTION\n\n" + "Invalid instanceID" + "\n\nEND SERVER SIDE EXCEPTION\n\n";
connection.SendObject(header.PacketType, wrapper);
return;
}
object[] args = null;
if (wrapper.args == null)
{
args = new object[0];
}
else
{
args = (from arg in wrapper.args select arg.UntypedValue).ToArray();
}
try
{
wrapper.result = RPCArgumentBase.CreateDynamic(funcRef.Invoke(instance, args));
wrapper.args = (from arg in args select RPCArgumentBase.CreateDynamic(arg)).ToList();
}
catch (Exception e)
{
wrapper.result = null;
if (e.InnerException != null)
{
e = e.InnerException;
}
wrapper.Exception = "SERVER SIDE EXCEPTION\n\n" + e.ToString() + "\n\nEND SERVER SIDE EXCEPTION\n\n";
}
string returnPacketType = header.GetOption(PacketHeaderStringItems.RequestedReturnPacketType);
connection.SendObject(returnPacketType, wrapper);
}
private static void RetrieveByIDRPCHandler <T, I>(PacketHeader header, Connection connection, string instanceId) where T : I
{
lock (locker)
{
if (!RPCObjectsById.ContainsKey(instanceId) || RPCObjectsById[instanceId].InterfaceType != typeof(I))
{
instanceId = String.Empty;
}
else
{
var instanceWrapper = RPCObjectsById[instanceId];
instanceWrapper.AddClientSubscription <T, I>(connection);
}
string returnPacketType = header.GetOption(PacketHeaderStringItems.RequestedReturnPacketType);
connection.SendObject(returnPacketType, instanceId);
}
}
/// <summary>
/// Handles an incoming packet of type 'PartialFileData'
/// </summary>
/// <param name="header">Header associated with incoming packet</param>
/// <param name="connection">The connection associated with incoming packet</param>
/// <param name="data">The incoming data</param>
private void IncomingPartialFileData(PacketHeader header, Connection connection, byte[] data)
{
try
{
SendInfo info = null;
ReceivedFile file = null;
//Perform this in a thread safe way
lock (syncRoot)
{
//Extract the packet sequence number from the header
//The header can also user defined parameters
long sequenceNumber = header.GetOption(PacketHeaderLongItems.PacketSequenceNumber);
if (incomingDataInfoCache.ContainsKey(connection.ConnectionInfo) && incomingDataInfoCache[connection.ConnectionInfo].ContainsKey(sequenceNumber))
{
//We have the associated SendInfo so we can add this data directly to the file
info = incomingDataInfoCache[connection.ConnectionInfo][sequenceNumber];
incomingDataInfoCache[connection.ConnectionInfo].Remove(sequenceNumber);
//Check to see if we have already received any files from this location
if (!receivedFilesDict.ContainsKey(connection.ConnectionInfo))
{
receivedFilesDict.Add(connection.ConnectionInfo, new Dictionary <string, ReceivedFile>());
}
//Check to see if we have already initialised this file
if (!receivedFilesDict[connection.ConnectionInfo].ContainsKey(info.Filename))
{
receivedFilesDict[connection.ConnectionInfo].Add(info.Filename, new ReceivedFile(info.Filename, connection.ConnectionInfo, info.TotalBytes));
AddNewReceivedItem(receivedFilesDict[connection.ConnectionInfo][info.Filename]);
}
file = receivedFilesDict[connection.ConnectionInfo][info.Filename];
}
else
{
//We do not yet have the associated SendInfo so we just add the data to the cache
if (!incomingDataCache.ContainsKey(connection.ConnectionInfo))
{
incomingDataCache.Add(connection.ConnectionInfo, new Dictionary <long, byte[]>());
}
incomingDataCache[connection.ConnectionInfo].Add(sequenceNumber, data);
}
}
//If we have everything we need we can add data to the ReceivedFile
if (info != null && file != null && !file.IsCompleted)
{
file.AddData(info.BytesStart, 0, data.Length, data);
//Perform a little clean-up
file = null;
data = null;
GC.Collect();
}
else if (info == null ^ file == null)
{
throw new Exception("Either both are null or both are set. Info is " + (info == null ? "null." : "set.") + " File is " + (file == null ? "null." : "set.") + " File is " + (file.IsCompleted ? "completed." : "not completed."));
}
}
catch (Exception ex)
{
//If an exception occurs we write to the log window and also create an error file
AddLineToLog("Exception - " + ex.ToString());
LogTools.LogException(ex, "IncomingPartialFileDataError");
}
}
/// <summary>
/// Returns the <see cref="SendReceiveOptions"/> to be used for the provided <see cref="PacketHeader"/>. Ensures there
/// will not be a serializer or data processor clash for different delegate levels.
/// </summary>
/// <param name="header">The <see cref="PacketHeader"/> options are desired.</param>
/// <returns>The requested <see cref="SendReceiveOptions"/></returns>
internal SendReceiveOptions IncomingPacketSendReceiveOptions(PacketHeader header)
{
//Are there connection specific or global packet handlers?
bool connectionSpecificHandlers = false;
lock (_syncRoot) connectionSpecificHandlers = incomingPacketHandlers.ContainsKey(header.PacketType);
bool globalHandlers = NetworkComms.GlobalIncomingPacketHandlerExists(header.PacketType);
//Get connection specific options for this packet type, if there aren't any use the connection default options
SendReceiveOptions connectionSpecificOptions = PacketTypeUnwrapperOptions(header.PacketType);
if (connectionSpecificOptions == null)
{
connectionSpecificOptions = ConnectionDefaultSendReceiveOptions;
}
//Get global options for this packet type, if there aren't any use the global default options
SendReceiveOptions globalOptions = NetworkComms.GlobalPacketTypeUnwrapperOptions(header.PacketType);
if (globalOptions == null)
{
globalOptions = NetworkComms.DefaultSendReceiveOptions;
}
if (connectionSpecificHandlers && globalHandlers)
{
if (!connectionSpecificOptions.OptionsCompatible(globalOptions))
{
throw new PacketHandlerException("Attempted to determine correct sendReceiveOptions for packet of type '" + header.PacketType + "'. Unable to continue as connection specific and global sendReceiveOptions are not equal.");
}
//We need to combine options in this case using the connection specific option in preference if both are present
var combinedOptions = new Dictionary <string, string>(globalOptions.Options);
foreach (var pair in connectionSpecificOptions.Options)
{
combinedOptions[pair.Key] = pair.Value;
}
//If the header specifies a serializer and data processors we will auto detect those
if (header.ContainsOption(PacketHeaderLongItems.SerializerProcessors))
{
DataSerializer serializer;
List <DataProcessor> dataProcessors;
DPSManager.GetSerializerDataProcessorsFromIdentifier(header.GetOption(PacketHeaderLongItems.SerializerProcessors), out serializer, out dataProcessors);
return(new SendReceiveOptions(serializer, dataProcessors, combinedOptions));
}
//Otherwise we will use options that were specified
return(new SendReceiveOptions(connectionSpecificOptions.DataSerializer, connectionSpecificOptions.DataProcessors, combinedOptions));
}
//////////////////////////////////////////////
//// Changed 20/05/14 to fix bug when encryption options is set on the listener and not the packet handler
//////////////////////////////////////////////
else //if (connectionSpecificHandlers)
{
//If the header specifies a serializer and data processors we will auto detect those
if (header.ContainsOption(PacketHeaderLongItems.SerializerProcessors))
{
DataSerializer serializer;
List <DataProcessor> dataProcessors;
DPSManager.GetSerializerDataProcessorsFromIdentifier(header.GetOption(PacketHeaderLongItems.SerializerProcessors), out serializer, out dataProcessors);
return(new SendReceiveOptions(serializer, dataProcessors, connectionSpecificOptions.Options));
}
return(connectionSpecificOptions);
}
//else
//{
// //If the header specifies a serializer and data processors we will auto detect those
// if (header.ContainsOption(PacketHeaderLongItems.SerializerProcessors))
// {
// DataSerializer serializer;
// List<DataProcessor> dataProcessors;
// DPSManager.GetSerializerDataProcessorsFromIdentifier(header.GetOption(PacketHeaderLongItems.SerializerProcessors), out serializer, out dataProcessors);
// return new SendReceiveOptions(serializer, dataProcessors, globalOptions.Options);
// }
// //If just globalHandlers is set (or indeed no handlers at all we just return the global options
// return globalOptions;
//}
}
