public void XbeeEventReceived(IXBeeEvent xbeeEvent)
{
if (xbeeEvent is XBeeReceivePacketExplicitEvent rxMessage)
{
ZigBeeApsFrame apsFrame = new ZigBeeApsFrame
{
Cluster = (ushort)rxMessage.GetClusterId(),
DestinationEndpoint = (byte)rxMessage.GetDestinationEndpoint(),
Profile = (ushort)rxMessage.GetProfileId(),
SourceEndpoint = (byte)rxMessage.GetSourceEndpoint(),
SourceAddress = (ushort)rxMessage.GetNetworkAddress(),
Payload = rxMessage.GetData().Select(item => (byte)item).ToArray()
};
_zigBeeTransportReceive.ReceiveCommand(apsFrame);
return;
}
// Handle dongle status messages
if (xbeeEvent is XBeeModemStatusEvent modemStatus)
{
ModemStatus modemCurrentStatus = modemStatus.GetStatus();
switch (modemCurrentStatus)
{
case ModemStatus.COORDINATOR_STARTED:
{
_coordinatorStarted = true;
SetNetworkState(ZigBeeTransportState.ONLINE);
}
break;
case ModemStatus.DISASSOCIATED:
{
SetNetworkState(ZigBeeTransportState.OFFLINE);
}
break;
case ModemStatus.HARDWARE_RESET:
case ModemStatus.JOINED_NETWORK:
case ModemStatus.NETWORK_SECURITY_KEY_UPDATED:
case ModemStatus.WATCHDOG_TIMER_RESET:
break;
default:
break;
}
return;
}
Log.Debug($"Unhandled XBee Frame: {xbeeEvent.ToString()}");
}
/// <summary>
/// Listeners are called when a new <see cref="IXBeeEvent"/> is received
/// </summary>
/// <typeparam name="T">Expected type of xbee event</typeparam>
/// <param name="xbeeEvent">The received <see cref="IXBeeEvent"/>.</param>
public void XbeeEventReceived(IXBeeEvent xbeeEvent)
{
if (xbeeEvent.GetType() != _eventClass)
{
return;
}
ReceivedEvent = xbeeEvent;
lock (_lockObject)
{
Complete = true;
}
}
public void TestGetEvent()
{
int[] data = GetPacketData("00 1A 91 00 17 88 01 02 13 65 36 F7 7B 02 01 00 01 01 04 41 18 7C 01 21 00 00 20 C8 C4");
IXBeeEvent frame = XBeeEventFactory.GetXBeeFrame(data);
Assert.True(frame is XBeeReceivePacketExplicitEvent);
_output.WriteLine(frame.ToString());
XBeeReceivePacketExplicitEvent xbeeEvent = (XBeeReceivePacketExplicitEvent)frame;
Assert.Equal(1, xbeeEvent.GetClusterId());
Assert.Equal(1, xbeeEvent.GetDestinationEndpoint());
Assert.Equal(63355, xbeeEvent.GetNetworkAddress());
Assert.Equal(0x104, xbeeEvent.GetProfileId());
}
public void TestBootloaderEvent()
{
int[] data = GetPacketData("00 16 A0 00 13 A2 00 41 62 F6 1A 00 00 01 40 00 00 00 00 00 00 00 FF FF B8");
IXBeeEvent frame = XBeeEventFactory.GetXBeeFrame(data);
Assert.True(frame is XBeeOtaFirmwareUpdateStatusEvent);
_output.WriteLine(frame.ToString());
XBeeOtaFirmwareUpdateStatusEvent xbeeEvent = (XBeeOtaFirmwareUpdateStatusEvent)frame;
Assert.Equal(0, xbeeEvent.GetBlockNumber());
Assert.Equal(new IeeeAddress(BigInteger.Parse("0013A2004162F61A", System.Globalization.NumberStyles.HexNumber)), xbeeEvent.GetIeeeAddress());
Assert.Equal(0, xbeeEvent.GetNetworkAddress());
}
/// <summary>
/// Notify any event listeners when we receive an event.
/// </summary>
/// <param name="xBeeEvent">the <see cref="IXBeeEvent"/> received.</param>
private void NotifyEventReceived(IXBeeEvent xBeeEvent)
{
Log.Debug($"RX XBEE: {xBeeEvent.ToString()}");
lock (_eventListeners)
{
foreach (IXBeeEventListener listener in _eventListeners)
{
try
{
listener.XbeeEventReceived(xBeeEvent);
}
catch (Exception e)
{
Log.Debug($"Exception processing XBee frame: {xBeeEvent}: ", e);
}
}
}
}
public static IXBeeEvent GetXBeeFrame(int[] data)
{
_events.TryGetValue(data[2], out Type xbeeClass);
if (xbeeClass == null)
{
return(null);
}
try
{
IXBeeEvent xbeeFrame = Activator.CreateInstance(xbeeClass) as IXBeeEvent;
xbeeFrame.Deserialize(data);
return(xbeeFrame);
}
catch (Exception ex)
{
Log.Debug("Error creating instance of IXBeeResponse", ex);
}
return(null);
}
/// <summary>
/// Construct which sets input stream where the packet is read from the and
/// handler which further processes the received packet.
/// </summary>
/// <param name="serialPort">The serial port.</param>
public void Start(IZigBeePort serialPort)
{
Interlocked.Exchange(ref _frameId, 1);
_serialPort = serialPort;
_timeoutTimer = new Timer(new TimerCallback(TimeoutCallback));
// TODO af: find the equivalent in C# --> maybe ThreadPool-Class is the right one
//timeoutScheduler = Executors.newSingleThreadScheduledExecutor();
// Clear anything in the receive buffer before we start
EmptyRxBuffer();
// TODO af: find a more elegant way to solve this --> maybe async/await
// This might be resolved with a TaskCompletionSource
// See the refactored while loop in ZigBeeTransaction.cs line 84
_parserThread = _taskFactory.StartNew(() =>
{
Log.Debug("XBeeFrameHandler task started.");
while (!_closeHandler)
{
try
{
lock (_commandLock)
{
if (_sentCommand == null)
{
SendNextFrame();
}
}
// Get a packet from the serial port
int[] responseData = GetPacket();
if (responseData == null)
{
lock (_commandLock)
{
_sentCommand = null;
}
continue;
}
StringBuilder builder = new StringBuilder();
foreach (int value in responseData)
{
builder.Append(string.Format(" 0x{0:X2}", value.ToString()));
}
Log.Verbose($"RX XBEE Data: {builder}");
// Use the Event Factory to get an event
IXBeeEvent xBeeEvent = XBeeEventFactory.GetXBeeFrame(responseData);
if (xBeeEvent != null)
{
NotifyEventReceived(xBeeEvent);
}
// Use the Response Factory to get a response
IXBeeResponse response = XBeeResponseFactory.GetXBeeFrame(responseData);
if (response != null && NotifyResponseReceived(response))
{
lock (_commandLock)
{
_sentCommand = null;
}
}
}
catch (Exception ex)
{
Log.Error(ex, "XBeeFrameHandler exception {Exception}", ex.Message);
}
}
Log.Debug("XBeeFrameHandler thread exited.");
});
}
