private CBAttributePermissions GetNativePermissions(CharacterisiticPermissionType permissions)
{
CBAttributePermissions nativePermissions = 0;
foreach (CharacterisiticPermissionType value in Enum.GetValues(typeof(CharacterisiticPermissionType)))
{
if (permissions.HasFlag(value))
{
switch (value)
{
case CharacterisiticPermissionType.Read:
nativePermissions |= CBAttributePermissions.Readable;
break;
case CharacterisiticPermissionType.Write:
nativePermissions |= CBAttributePermissions.Writeable;
break;
case CharacterisiticPermissionType.ReadEncrypted:
nativePermissions |= CBAttributePermissions.ReadEncryptionRequired;
break;
case CharacterisiticPermissionType.WriteEncrypted:
nativePermissions |= CBAttributePermissions.WriteEncryptionRequired;
break;
}
}
}
return(nativePermissions);
}
public Characteristic(Guid uuid, CharacterisiticPermissionType permissions, CharacteristicPropertyType properties)
{
CBAttributePermissions nativePermissions = 0;
nativePermissions = GetNativePermissions(permissions);
_nativeCharacteristic = new CBMutableCharacteristic(CBUUID.FromString(uuid.ToString()), (CBCharacteristicProperties)properties, null, nativePermissions);
}
/// <summary>
/// Convert abstracted permissions to android native permissions
/// </summary>
/// <param name="permissions"></param>
/// <returns></returns>
GattPermission GetNativePermissions(CharacterisiticPermissionType permissions)
{
GattPermission nativePermissions = 0;
foreach (CharacterisiticPermissionType value in Enum.GetValues(typeof(CharacterisiticPermissionType)))
{
if (permissions.HasFlag(value))
{
switch (value)
{
case CharacterisiticPermissionType.Read:
nativePermissions |= GattPermission.Read;
break;
case CharacterisiticPermissionType.Write:
nativePermissions |= GattPermission.Write;
break;
case CharacterisiticPermissionType.ReadEncrypted:
nativePermissions |= GattPermission.ReadEncrypted;
break;
case CharacterisiticPermissionType.WriteEncrypted:
nativePermissions |= GattPermission.WriteEncrypted;
break;
}
}
}
return(nativePermissions);
}
private void AddCharacteristic(ref IService service, Guid guid, CharacterisiticPermissionType permissions, CharacteristicPropertyType properties, byte[] value)
{
var charFactory = DependencyService.Get <ICharacteristicsFactory>();
var characteristic = charFactory.Create(guid, permissions, properties);
characteristic.ValueUpdated += CharacteristicOnValueUpdated;
characteristic.Value = value;
service.Characteristics.Add(characteristic);
}
/// <summary>
/// Convert native permissions to abstracted permissions
/// </summary>
/// <param name="permission"></param>
/// <returns></returns>
CharacterisiticPermissionType GetPermissions(GattPermission permission)
{
CharacterisiticPermissionType t = 0;
foreach (GattPermission value in Enum.GetValues(typeof(GattPermission)))
{
switch (value)
{
case GattPermission.Read:
t |= CharacterisiticPermissionType.Read;
break;
case GattPermission.ReadEncrypted:
t |= CharacterisiticPermissionType.ReadEncrypted;
break;
case GattPermission.ReadEncryptedMitm:
t |= CharacterisiticPermissionType.ReadEncryptedMitm;
break;
case GattPermission.Write:
t |= CharacterisiticPermissionType.Write;
break;
case GattPermission.WriteEncrypted:
t |= CharacterisiticPermissionType.WriteEncrypted;
break;
case GattPermission.WriteEncryptedMitm:
t |= CharacterisiticPermissionType.WriteEncryptedMitm;
break;
case GattPermission.WriteSigned:
t |= CharacterisiticPermissionType.WriteSigned;
break;
case GattPermission.WriteSignedMitm:
t |= CharacterisiticPermissionType.WriteSignedMitm;
break;
default:
throw new ArgumentOutOfRangeException();
}
}
return(t);
}
public ICharacteristic Create(Guid uuid, CharacterisiticPermissionType permissions, CharacteristicPropertyType propeties)
{
return(new Characteristic(uuid, permissions, propeties));
}
public Characteristic(Guid uuid, CharacterisiticPermissionType permissions, CharacteristicPropertyType properties)
{
GattPermission gattPermissions = GetNativePermissions(permissions);
_nativeCharacteristic = new BluetoothGattCharacteristic(UUID.FromString(uuid.ToString()), (GattProperty)properties, gattPermissions);
}
