/// <summary>Get extra info for connection and other not gathered at discovery to save time</summary>
/// <param name="deviceInfo">The device information data model to populate</param>
/// <param name="forceRetrieve">Force re-reading of all extra information</param>
/// <returns>An asynchronous task result</returns>
private async Task GetExtraInfo(BTDeviceInfo deviceInfo, bool forceRetrieve)
{
this.log.InfoEntry("GetExtraInfo");
// 0 length remote host name indicates that we require more information for connection
if (deviceInfo.RemoteHostName.Length == 0 || forceRetrieve)
{
this.log.Info("GetExtraInfo", () => string.Format("Getting info to fill in host name for address:{0}", deviceInfo.Address));
using (BluetoothDevice device = await BluetoothDevice.FromIdAsync(deviceInfo.Address)) {
// TODO - defer this to before connection or info request
// SDP records only after services
// Must use uncached
RfcommDeviceServicesResult serviceResult = await device.GetRfcommServicesAsync(BluetoothCacheMode.Uncached);
this.log.Info("GetExtraInfo", () => string.Format("Success. Number of services:{0}", serviceResult.Services.Count));
//WrapErr.ChkTrue(serviceResult.Services.Count > 0, 9999, () => string.Format("No services for BT:{0}", deviceInfo.Name));
if (serviceResult.Services.Count == 0)
{
throw new Exception(string.Format("No services for BT:{0}", deviceInfo.Name));
}
if (serviceResult.Error == BluetoothError.Success)
{
foreach (var service in serviceResult.Services)
{
BT_ServiceType serviceType = BT_ParseHelpers.GetServiceType(service.ConnectionServiceName);
this.log.Info("GetExtraInfo", () => string.Format("Device {0} Connection host name {1} Service name {2} Type {3}",
deviceInfo.Name,
service.ConnectionHostName,
service.ConnectionServiceName,
serviceType.ToString()));
if (serviceType == BT_ServiceType.SerialPort)
{
// TODO get extra info on attributes
//var sdpAttr = await service.GetSdpRawAttributesAsync(BluetoothCacheMode.Uncached);
//foreach (var attr in sdpAttr) {
// this.log.Info("HarvestInfo", () => string.Format(" SDP Attribute:{0} Capacity:{1} Length:{2}", attr.Key, attr.Value.Capacity, attr.Value.Length));
//}
// Sample output. See: https://www.bluetooth.com/specifications/assigned-numbers/service-discovery/
//SDP Attribute id | Capacity | Length | Description(?)
// 256 7 7
// 0 5 5
// 6 11 11
// 4 14 14
// 1 5 5 (service class ID list
deviceInfo.ServiceType = BT_ServiceType.SerialPort;
deviceInfo.RemoteHostName = service.ConnectionHostName.ToString();
deviceInfo.RemoteServiceName = service.ConnectionServiceName;
// TODO info on access
//service.DeviceAccessInformation.CurrentStatus == DeviceAccessStatus.Allowed
this.log.Info("****", () => string.Format("Device:{0} Host Name:{1} Service:{2}",
deviceInfo.Name, deviceInfo.RemoteHostName, deviceInfo.RemoteServiceName));
}
else
{
// Not used.
}
}
}
else
{
this.log.Error(9999, () => string.Format("Get Service result:{0}", serviceResult.Error.ToString()));
}
}
}
}
/// <summary>Get extra info for connection and other not gathered at discovery to save time</summary>
/// <param name="deviceInfo">The device information data model to populate</param>
/// <param name="forceRetrieve">Force re-reading of all extra information</param>
/// <returns>An asynchronous task result</returns>
private async Task GetExtraInfo(BTDeviceInfo deviceInfo, bool forceRetrieve, bool display)
{
try {
this.log.InfoEntry("GetExtraInfo");
// TODO Cannot call this after the services have already been retrieved. So do not force
// 0 length remote host name indicates that we require more information for connection
if (deviceInfo.RemoteHostName.Length == 0 || forceRetrieve)
{
this.log.Info("GetExtraInfo", () => string.Format("Getting info to fill in host name for address:{0}", deviceInfo.Address));
using (BluetoothDevice device = await BluetoothDevice.FromIdAsync(deviceInfo.Address)) {
// TODO - defer this to before connection or info request
// SDP records only after services
// Must use uncached
RfcommDeviceServicesResult serviceResult = await device.GetRfcommServicesAsync(BluetoothCacheMode.Uncached);
this.log.Info("GetExtraInfo", () => string.Format("Success. Number of services:{0}", serviceResult.Services.Count));
//WrapErr.ChkTrue(serviceResult.Services.Count > 0, 9999, () => string.Format("No services for BT:{0}", deviceInfo.Name));
if (serviceResult.Services.Count == 0)
{
throw new Exception(string.Format("No services for BT:{0}", deviceInfo.Name));
}
if (serviceResult.Error == BluetoothError.Success)
{
foreach (var service in serviceResult.Services)
{
BT_ServiceType serviceType = BT_ParseHelpers.GetServiceType(service.ServiceId.AsShortId());
this.log.Info("GetExtraInfo", () => string.Format("Device {0} Connection host name {1} Service name {2} Type {3}",
deviceInfo.Name,
service.ConnectionHostName,
service.ConnectionServiceName,
serviceType.ToString()));
if (serviceType == BT_ServiceType.SerialPort)
{
//await this.GetListSDPAttributes(service);
deviceInfo.ServiceType = serviceType;
deviceInfo.RemoteHostName = service.ConnectionHostName.ToString();
deviceInfo.RemoteServiceName = service.ConnectionServiceName;
deviceInfo.ServiceClassName = serviceType.ToString().CamelCaseToSpaces();
deviceInfo.ServiceClassInt = (int)service.ServiceId.AsShortId();
// TODO info on access
//service.DeviceAccessInformation.CurrentStatus == DeviceAccessStatus.Allowed
this.log.Info("****", () => string.Format("Device:{0} Host Name:{1} Service:{2}",
deviceInfo.Name, deviceInfo.RemoteHostName, deviceInfo.RemoteServiceName));
//deviceInfo.Strength = 0;
this.ListDeviceInfoProperties(device);
this.log.Info("****", () => string.Format("device.BluetoothAddress: {0}", device.BluetoothAddress));
this.log.Info("****", () => string.Format("device.BluetoothDeviceId.id: {0}", device.BluetoothDeviceId.Id));
this.log.Info("****", () => string.Format("device.DeviceId: {0}", device.DeviceId));
this.log.Info("****", () => string.Format("device.DeviceInformation.Id: {0}", device.DeviceInformation.Id));
this.log.Info("****", () => string.Format("device.ClassOfDevice: {0}", device.ClassOfDevice.RawValue));
//this.log.Info("****", () => string.Format(":{0}", ));
//this.log.Info("****", () => string.Format(":{0}", ));
// Experimental. See the note on the method
//await this.GetRadioInfo(device, deviceInfo, service.ConnectionServiceName);
//await this.GetRadioInfo(device, deviceInfo, deviceInfo.RemoteHostName);
// List of radios available on current device
//await this.ListRadios();
if (display)
{
this.BT_DeviceInfoGathered?.Invoke(this, deviceInfo);
}
}
else
{
//Not used.
}
service.Dispose();
}
}
else
{
this.log.Error(9999, () => string.Format("Get Service result:{0}", serviceResult.Error.ToString()));
}
}
}
else if (deviceInfo.RemoteHostName.Length > 0 && display)
{
this.BT_DeviceInfoGathered?.Invoke(this, deviceInfo);
}
}
catch (Exception e) {
this.log.Exception(9999, "GetExtraInfo", "", e);
}
}