/// <summary>
/// Serializes the specified frame.
/// </summary>
/// <param name="frame">The frame.</param>
/// <returns>Binary representation of the frame.</returns>
public byte[] Serialize(BaseFrame frame)
{
if (frame is ControlFrame)
{
return SerializeControlFrame(frame as ControlFrame);
}
else
{
return SerializeDataFrame(frame as DataFrame);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="FrameLogItem"/> struct.
/// </summary>
/// <param name="frame">The frame.</param>
public FrameLogItem(BaseFrame frame)
{
this.Length = frame.Length;
this.StreamId = frame.StreamId;
if (frame is ControlFrame)
{
this.Type = ((ControlFrame)frame).Type;
this.Headers = ((ControlFrame)frame).Headers.ToString();
this.TimeStamp = DateTime.Now;
this.Duration = TimeSpan.Zero;
}
else
{
this.Type = FrameType.Data;
this.TimeStamp = DateTime.Now;
this.Duration = TimeSpan.Zero;
this.Headers = string.Empty;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="FrameEventArgs"/> class.
/// </summary>
/// <param name="frame">The frame.</param>
public FrameEventArgs(BaseFrame frame)
{
this.Frame = frame;
}
/// <summary>
/// Serializes the specified frame.
/// </summary>
/// <param name="frame">The frame.</param>
/// <returns>Binary representation of the frame.</returns>
public byte[] Serialize(BaseFrame frame)
{
if (frame is ControlFrame)
{
if (Option.UseCompression)
{
frame.Flags &= (byte)FrameFlags.FlagNormal;
}
else
{
frame.Flags &= (byte)FrameFlags.FlagNoHeaderCompression1;
}
return SerializeControlFrame(frame as ControlFrame);
}
return SerializeDataFrame(frame as DataFrame);
}
/// <summary>
/// Sends the data.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="frame">The base frame.</param>
private void SendFrame(SMStream stream, BaseFrame frame)
{
try
{
byte[] frameBinary = this.serializer.Serialize(frame);
frame.Length = frameBinary.Length;
this.webSocket.SendMessage(frameBinary);
if (frame.IsFinal)
{
stream.State = SMStreamState.HalfClosed;
}
if (this.OnFrameSent != null)
{
this.OnFrameSent(this, new FrameEventArgs(frame));
}
}
catch (Exception e)
{
if (this.OnStreamError != null)
{
this.OnStreamError(this, new StreamErrorEventArgs(stream, e));
}
else
{
throw;
}
}
}
/// <summary>
/// Selects frame based on type
/// </summary>
/// <param name="frame">The frame.</param>
/// <returns>
/// TRUE if frame is SM control frame of SYNSTREAM or SYNREPLY type
/// </returns>
private bool SessionFramesFilter(BaseFrame frame)
{
var cntrlframe = frame as ControlFrame;
return cntrlframe != null && (cntrlframe.Type == FrameType.SynStream || cntrlframe.Type == FrameType.SynReply);
}