コード例 #1
0
        /// <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);
            }
        }