/// <summary>
/// Unpack request/notification message array header.
/// </summary>
/// <param name="context">Context information.</param>
/// <returns>
/// <c>true</c>, if the pipeline is finished;
/// <c>false</c>, the pipeline is interruppted because extra data is needed.
/// </returns>
internal bool UnpackRequestHeader(ServerRequestContext context)
{
Contract.Assert(context != null);
if (context.RootUnpacker == null)
{
context.UnpackingBuffer = new ByteArraySegmentStream(context.ReceivedData);
context.RootUnpacker = Unpacker.Create(context.UnpackingBuffer, false);
Interlocked.Increment(ref this._processing);
context.RenewSessionId();
if (this._manager.Server.Configuration.ReceiveTimeout != null)
{
context.Timeout += this.OnReceiveTimeout;
context.StartWatchTimeout(this._manager.Server.Configuration.ReceiveTimeout.Value);
}
if (MsgPackRpcServerProtocolsTrace.ShouldTrace(MsgPackRpcServerProtocolsTrace.NewSession))
{
MsgPackRpcServerProtocolsTrace.TraceEvent(
MsgPackRpcServerProtocolsTrace.NewSession,
"New session is created. {{ \"SessionID\" : {0} }}",
context.SessionId
);
}
}
if (!context.ReadFromRootUnpacker())
{
MsgPackRpcServerProtocolsTrace.TraceEvent(
MsgPackRpcServerProtocolsTrace.NeedRequestHeader,
"Array header is needed. {{ \"SessionID\" : {0} }}",
context.SessionId
);
return(false);
}
if (!context.RootUnpacker.IsArrayHeader)
{
this.HandleDeserializationError(context, "Invalid request/notify message stream. Message must be array.", () => context.UnpackingBuffer.ToArray());
return(true);
}
if (context.RootUnpacker.ItemsCount != 3 && context.RootUnpacker.ItemsCount != 4)
{
this.HandleDeserializationError(
context,
String.Format(
CultureInfo.CurrentCulture,
"Invalid request/notify message stream. Message must be valid size array. Actual size is {0}.",
context.RootUnpacker.ItemsCount
),
() => context.UnpackingBuffer.ToArray()
);
return(true);
}
context.HeaderUnpacker = context.RootUnpacker.ReadSubtree();
context.NextProcess = UnpackMessageType;
return(context.NextProcess(context));
}
