public override async Task Init()

in GattServicesLibrary/GattServicesLibrary/Services/MicrosoftService.cs [199:337]
105 lines of code
6 McCabe index (conditional complexity)

        public override async Task Init()
        {
            var serviceData = new byte[] {
                0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
                0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
            };
            ServiceData = WindowsRuntimeBuffer.Create(serviceData, 0, serviceData.Length, serviceData.Length);

            await CreateServiceProvider(MSFTServiceUuid);

            GattLocalCharacteristicResult result = null;

            // Prepare the Read Characteristic
            GattLocalCharacteristicParameters readParam = PlainReadParameter;
            readParam.UserDescription = "Microsoft Read characteristic";

            // Add presentation format - 16-bit integer, with exponent 0, the unit is percentage, defined per Bluetooth SIG with Microsoft as descriptor
            readParam.PresentationFormats.Add(
                GattPresentationFormat.FromParts(
                    Convert.ToByte(PresentationFormats.FormatTypes.Signed32BitInteger),
                    PresentationFormats.Exponent,
                    Convert.ToUInt16(PresentationFormats.Units.Unitless),
                    Convert.ToByte(PresentationFormats.NamespaceId.BluetoothSigAssignedNumber),
                    PresentationFormats.Description));

            GattLocalCharacteristic baseReadChar = null;
            result = await ServiceProvider.Service.CreateCharacteristicAsync(MSFTReadChar, readParam);
            GattServicesHelper.GetCharacteristicsFromResult(result, ref baseReadChar);
            if (baseReadChar != null)
            {
                ReadCharacteristic = new Characteristics.MicrosoftReadCharacteristic(baseReadChar, this);
            }

            result = null;

            // Prepare the Write Characteristic
            GattLocalCharacteristicParameters writeParam = PlainWriteOrWriteWithoutRespondsParameter;
            writeParam.UserDescription = "Microsoft Write characteristic";

            // Add presentation format - 16-bit integer, with exponent 0, the unit is percentage, defined per Bluetooth SIG with Microsoft as descriptor
            writeParam.PresentationFormats.Add(
                GattPresentationFormat.FromParts(
                    Convert.ToByte(PresentationFormats.FormatTypes.UTF8String),
                    PresentationFormats.Exponent,
                    Convert.ToUInt16(PresentationFormats.Units.Unitless),
                    Convert.ToByte(PresentationFormats.NamespaceId.BluetoothSigAssignedNumber),
                    PresentationFormats.Description));

            GattLocalCharacteristic baseWriteChar = null;
            result = await ServiceProvider.Service.CreateCharacteristicAsync(MSFTWriteChar, writeParam);
            GattServicesHelper.GetCharacteristicsFromResult(result, ref baseWriteChar);
            if (baseWriteChar != null)
            {
                WriteCharacteristic = new Characteristics.MicrosoftWriteCharacteristic(baseWriteChar, this);
            }

            result = null;

            // Prepare the Notify Characteristic
            GattLocalCharacteristicParameters notifyParam = PlainReadNotifyParameters;
            notifyParam.UserDescription = "Microsoft Notify characteristic";

            // Add presentation format - string, the unit is percentage, defined per Bluetooth SIG with Microsoft as descriptor
            notifyParam.PresentationFormats.Add(
                GattPresentationFormat.FromParts(
                    Convert.ToByte(PresentationFormats.FormatTypes.UTF8String),
                    PresentationFormats.Exponent,
                    Convert.ToUInt16(PresentationFormats.Units.Unitless),
                    Convert.ToByte(PresentationFormats.NamespaceId.BluetoothSigAssignedNumber),
                    PresentationFormats.Description));

            GattLocalCharacteristic baseNotifyChar = null;
            result = await ServiceProvider.Service.CreateCharacteristicAsync(MSFTNotifyChar, notifyParam);
            GattServicesHelper.GetCharacteristicsFromResult(result, ref baseNotifyChar);
            if (baseNotifyChar != null)
            {
                NotifyCharacteristic = new Characteristics.MicrosoftNotifyCharacteristic(baseNotifyChar, this);
            }

            result = null;

            // Prepare the Indicate Characteristic
            GattLocalCharacteristicParameters indicateParam = new GattLocalCharacteristicParameters
            {
                CharacteristicProperties = GattCharacteristicProperties.Read | GattCharacteristicProperties.Indicate,
                WriteProtectionLevel = GattProtectionLevel.Plain,
                ReadProtectionLevel = GattProtectionLevel.Plain
            };

            indicateParam.UserDescription = "Microsoft Indicate characteristic";

            // Add presentation format - 16-bit integer, with exponent 0, the unit is percentage, defined per Bluetooth SIG with Microsoft as descriptor
            indicateParam.PresentationFormats.Add(
                GattPresentationFormat.FromParts(
                    Convert.ToByte(PresentationFormats.FormatTypes.UTF8String),
                    PresentationFormats.Exponent,
                    Convert.ToUInt16(PresentationFormats.Units.Unitless),
                    Convert.ToByte(PresentationFormats.NamespaceId.BluetoothSigAssignedNumber),
                    PresentationFormats.Description));

            GattLocalCharacteristic baseIndicateChar = null;
            result = await ServiceProvider.Service.CreateCharacteristicAsync(MSFTIndicateChar, indicateParam);
            GattServicesHelper.GetCharacteristicsFromResult(result, ref baseIndicateChar);
            if (baseIndicateChar != null)
            {
                IndicateCharacteristic = new Characteristics.MicrosoftNotifyCharacteristic(baseIndicateChar, this);
            }

            result = null;

            // Prepare the Read Long Characteristic
            GattLocalCharacteristicParameters longParam = new GattLocalCharacteristicParameters
            {
                CharacteristicProperties = GattCharacteristicProperties.Read,
                WriteProtectionLevel = GattProtectionLevel.Plain,
                ReadProtectionLevel = GattProtectionLevel.Plain
            };

            longParam.UserDescription = "Microsoft Read Long characteristic";

            // Add presentation format - 16-bit integer, with exponent 0, the unit is percentage, defined per Bluetooth SIG with Microsoft as descriptor
            longParam.PresentationFormats.Add(
                GattPresentationFormat.FromParts(
                    Convert.ToByte(PresentationFormats.FormatTypes.OpaqueStructure),
                    PresentationFormats.Exponent,
                    Convert.ToUInt16(PresentationFormats.Units.Unitless),
                    Convert.ToByte(PresentationFormats.NamespaceId.BluetoothSigAssignedNumber),
                    PresentationFormats.Description));

            GattLocalCharacteristic baseLongReadChar = null;
            result = await ServiceProvider.Service.CreateCharacteristicAsync(MSFTLongChar, longParam);
            GattServicesHelper.GetCharacteristicsFromResult(result, ref baseLongReadChar);
            if (baseLongReadChar != null)
            {
                ReadLongCharacteristic = new Characteristics.MicrosoftReadLongCharacteristic(baseLongReadChar, this);
            }

            result = null;
        }