/// <summary>
/// Connects to known device async.
///
/// https://developer.apple.com/library/ios/documentation/NetworkingInternetWeb/Conceptual/CoreBluetooth_concepts/BestPracticesForInteractingWithARemotePeripheralDevice/BestPracticesForInteractingWithARemotePeripheralDevice.html
///
/// </summary>
/// <returns>The to known device async.</returns>
/// <param name="deviceGuid">Device GUID.</param>
public async Task <Device> ConnectToKnownDeviceAsync(Guid deviceGuid, ConnectParameters connectParameters = default(ConnectParameters), CancellationToken cancellationToken = default(CancellationToken), bool dontThrowExceptionOnNotFound = false)
{
// Wait for the PoweredOn state
await WaitForState(CBCentralManagerState.PoweredOn, cancellationToken, true);
if (cancellationToken.IsCancellationRequested)
{
throw new TaskCanceledException("ConnectToKnownDeviceAsync cancelled");
}
//FYI attempted to use tobyte array insetead of string but there was a problem with byte ordering Guid->NSUui
var uuid = new NSUuid(deviceGuid.ToString());
Trace.Message($"[Adapter] Attempting connection to {uuid}");
var peripherials = _centralManager.RetrievePeripheralsWithIdentifiers(uuid);
var peripherial = peripherials.SingleOrDefault();
if (peripherial == null)
{
var systemPeripherials = _centralManager.RetrieveConnectedPeripherals(new CBUUID[0]);
#if __IOS__
var cbuuid = CBUUID.FromNSUuid(uuid);
#endif
peripherial = systemPeripherials.SingleOrDefault(p =>
#if __IOS__
p.UUID.Equals(cbuuid)
#else
p.Identifier.Equals(uuid)
#endif
);
if (peripherial == null)
{
if (dontThrowExceptionOnNotFound == true)
{
return(null);
}
throw new DeviceNotFoundException(deviceGuid);
}
}
var device = new Device(this, peripherial, _bleCentralManagerDelegate, peripherial.Name, peripherial.RSSI?.Int32Value ?? 0, new List <AdvertisementRecord>());
await ConnectToDeviceAsync(device, connectParameters, cancellationToken);
return(device);
}
/// <summary>
/// Connects to known device async.
/// https://developer.apple.com/library/ios/documentation/NetworkingInternetWeb/Conceptual/CoreBluetooth_concepts/BestPracticesForInteractingWithARemotePeripheralDevice/BestPracticesForInteractingWithARemotePeripheralDevice.html
/// </summary>
/// <returns>The to known device async.</returns>
/// <param name="deviceGuid">Device GUID.</param>
public override async Task <IDevice> ConnectToKnownDeviceAsync(Guid deviceGuid,
ConnectParameters connectParameters = default(ConnectParameters),
CancellationToken cancellationToken = default(CancellationToken))
{
// Wait for the PoweredOn state
await this.WaitForState(CBCentralManagerState.PoweredOn, cancellationToken, true);
if (cancellationToken.IsCancellationRequested)
{
throw new TaskCanceledException("ConnectToKnownDeviceAsync cancelled");
}
//FYI attempted to use tobyte array insetead of string but there was a problem with byte ordering Guid->NSUui
NSUuid uuid = new NSUuid(deviceGuid.ToString());
Trace.Message($"[Adapter] Attempting connection to {uuid}");
CBPeripheral[] peripherials = this._centralManager.RetrievePeripheralsWithIdentifiers(uuid);
CBPeripheral peripherial = peripherials.SingleOrDefault();
if (peripherial == null)
{
CBPeripheral[] systemPeripherials = this._centralManager.RetrieveConnectedPeripherals(new CBUUID[0]);
CBUUID cbuuid = CBUUID.FromNSUuid(uuid);
peripherial = systemPeripherials.SingleOrDefault(p => p.UUID.Equals(cbuuid));
if (peripherial == null)
{
throw new Exception($"[Adapter] Device {deviceGuid} not found.");
}
}
Device device = new Device(this, peripherial, this._centralManager, peripherial.Name,
peripherial.RSSI?.Int32Value ?? 0, new List <AdvertisementRecord>());
await this.ConnectToDeviceAsync(device, connectParameters, cancellationToken);
return(device);
}
// Overridden form CBCentralManagerDelegate
public override void DiscoveredPeripheral(CBCentralManager central, CBPeripheral peripheral, NSDictionary advertisementData, NSNumber RSSI)
{
string name = null;
var values = advertisementData.Values;
var data = advertisementData[CBAdvertisement.DataManufacturerDataKey];
if (!AttemptNameFetch(peripheral, advertisementData, out name))
{
// Log.E(this, "Failed to resolve peripheral name '" + name + "'. The peripheral will not be presented to the application.");
return;
}
if (!name.IsValidSerialNumber())
{
return;
}
IConnection connection = null;
var uuid = CBUUID.FromNSUuid(peripheral.Identifier);
if (connectionLookup.ContainsKey(uuid))
{
connection = connectionLookup[uuid];
}
ISerialNumber sn = null;
byte[] packet = null;
if (RigadoBroadcastParser.ParseBroadcastPacket(ExtractBroadcastData(advertisementData), out sn, out packet))
{
// We received a fully valid broadcast packet. We know that the gauge is an Appion gauge and should resolve it.
if (connection == null)
{
// We have not discovered this device before. Notify the world
NotifyDeviceFound(sn, uuid.ToString(), packet, EProtocolVersion.V4);
}
else
{
// The connection already exists. Give it a new packet.
NotifyDeviceFound(sn, uuid.ToString(), null, EProtocolVersion.V4);
connection.lastPacket = packet;
connection.lastSeen = DateTime.Now;
}
}
else
{
// We didn't receive a valid broadcasting packet, but the device may still be ours.
if (name.IsValidSerialNumber())
{
// See, the device has a valid serial number.
sn = name.ParseSerialNumber();
// Check that an iserialnumber was returned
if (sn != null)
{
if (connection == null)
{
var p = FindProtocolFromDeviceModel(sn.deviceModel);
// We have not discovered this device before. Notify the world
NotifyDeviceFound(sn, uuid.ToString(), null, p);
}
else
{
// The connection already exists. Update the last time that it was seen.
var d = ion.deviceManager[sn];
if (d == null)
{
//Log.E(this, "Failed to get device from device manager");
return;
}
NotifyDeviceFound(sn, uuid.ToString(), null, d.protocol.version);
connection.lastSeen = DateTime.Now;
}
}
}
else
{
Log.D(this, "Ignoring non-appion device: " + name);
}
}
}