public void PublishFrame_Qos_GuaranteedDispatch_SendsReply()
{
FrameBuilder fb = new FrameBuilder();
fb.WriteByte((byte)QoS.GuaranteedDispatch);
fb.WriteArray(BitConverter.GetBytes((UInt32)123456));
fb.WriteString("Test");
fb.WriteMultiByte(3);
fb.WriteArray(new byte[] { 0xAA, 0xBB, 0xCC });
var data = fb.GetData();
var frm = new Frame();
frm.payload = data;
frm.frameType = FrameType.Publish;
A.CallTo(() => subManFake.DispatchMessage(A <string> .Ignored, A <byte[]> .Ignored, A <QoS> .Ignored)).Returns(PostResult.Dispatched);
peerMan.FrameReceived(frm, rpFake);
A.CallTo(() => rpFake.SendPublishReply(123456, Core.StatusCodes.PublishStatus.Ack)).MustHaveHappened();
}
private void HandlePublish(Frame frame, IPeer source)
{
// the 5 offset is added because we dont process QoS and Framenumber yet.
var qos = (QoS)frame.payload[0];
var msgId = BitConverter.ToUInt32(frame.payload, 1);
var len = Util.ExtractMultiByte(frame.payload, 5);
var buff = new byte[len.value];
Array.Copy(frame.payload, 5 + (int)len.numBytesUsed, buff, 0, (int)len.value);
var channelName = Encoding.UTF8.GetString(buff);
var payloadLenOffset = 5 + len.numBytesUsed + len.value;
var payloadLen = Util.ExtractMultiByte(frame.payload, (int)payloadLenOffset);
var payloadBuff = new byte[payloadLen.value];
Array.Copy(frame.payload, (int)(payloadLenOffset + payloadLen.numBytesUsed), payloadBuff, 0, (int)payloadLen.value);
var res = subMan.DispatchMessage(channelName, payloadBuff, qos);
switch (qos)
{
case QoS.BestEffort:
// No answer in BestEffort case, we favor throughput here.
break;
case QoS.GuaranteedDelivery:
// If GuaranteedDelivery was requested, we send a failure notice if we did not
// get a positive answer
source.SendPublishReply(msgId, res == PostResult.Delivered ? Core.StatusCodes.PublishStatus.AckDelivery
: Core.StatusCodes.PublishStatus.NakDelivery);
break;
case QoS.GuaranteedDispatch:
source.SendPublishReply(msgId, res >= PostResult.DeliveryError ? Core.StatusCodes.PublishStatus.Ack
: Core.StatusCodes.PublishStatus.NakDispatch);
break;
}
}
