/// <summary>
/// Initialize the device properties for a new device.
/// </summary>
/// <param name="device"></param>
/// <param name="deviceId"></param>
/// <param name="isSimulated"></param>
/// <returns></returns>
private static void InitializeDeviceProperties(DeviceModel device, string deviceId, bool isSimulated)
{
DeviceProperties deviceProps = new DeviceProperties();
deviceProps.DeviceID = deviceId;
deviceProps.HubEnabledState = null;
deviceProps.CreatedTime = DateTime.UtcNow;
deviceProps.DeviceState = "normal";
deviceProps.UpdatedTime = null;
device.DeviceProperties = deviceProps;
}
private static IEnumerable<DevicePropertyValueModel> ExtractPropertyValueModels(
DeviceProperties deviceProperties)
{
DevicePropertyValueModel currentData;
object currentValue;
Dictionary<string, DevicePropertyMetadata> devicePropertyIndex;
Type devicePropertiesType;
bool isDisplayedRegistered;
bool isDisplayedUnregistered;
bool isEditable;
int editableOrdering;
MethodInfo getMethod;
int nonediableOrdering;
DevicePropertyMetadata propertyMetadata;
PropertyType propertyType;
if (deviceProperties == null)
{
throw new ArgumentNullException("deviceProperties is a null reference.");
}
devicePropertyIndex = GetDevicePropertyConfiguration().ToDictionary(t => t.Name);
// For now, display r/o properties first.
editableOrdering = 1;
nonediableOrdering = int.MinValue;
devicePropertiesType = deviceProperties.GetType();
foreach (PropertyInfo prop in devicePropertiesType.GetProperties())
{
if (devicePropertyIndex.TryGetValue(
prop.Name,
out propertyMetadata))
{
isDisplayedRegistered = propertyMetadata.IsDisplayedForRegisteredDevices;
isDisplayedUnregistered = propertyMetadata.IsDisplayedForUnregisteredDevices;
isEditable = propertyMetadata.IsEditable;
propertyType = propertyMetadata.PropertyType;
}
else
{
isDisplayedRegistered = isEditable = true;
isDisplayedUnregistered = false;
propertyType = PropertyType.String;
}
if (!isDisplayedRegistered && !isDisplayedUnregistered)
{
continue;
}
if ((getMethod = prop.GetGetMethod()) == null)
{
continue;
}
// Mark R/O properties as not-ediable.
if (!prop.CanWrite)
{
isEditable = false;
}
currentData = new DevicePropertyValueModel()
{
Name = prop.Name,
PropertyType = propertyType
};
if (isEditable)
{
currentData.IsEditable = true;
currentData.DisplayOrder = editableOrdering++;
}
else
{
currentData.IsEditable = false;
currentData.DisplayOrder = nonediableOrdering++;
}
currentData.IsIncludedWithUnregisteredDevices = isDisplayedUnregistered;
currentValue = getMethod.Invoke(deviceProperties, ReflectionHelper.EmptyArray);
if (currentValue == null)
{
currentData.Value = string.Empty;
}
else
{
currentData.Value = string.Format(CultureInfo.InvariantCulture, "{0}", currentValue);
}
yield return currentData;
}
}
private static void ApplyPropertyValueModels(
DeviceProperties deviceProperties,
IEnumerable<DevicePropertyValueModel> devicePropertyValueModels)
{
object[] args;
TypeConverter converter;
Type devicePropertiesType;
Dictionary<string, DevicePropertyMetadata> devicePropertyIndex;
Dictionary<string, PropertyInfo> propIndex;
PropertyInfo propInfo;
DevicePropertyMetadata propMetadata;
MethodInfo setter;
devicePropertyIndex = GetDevicePropertyConfiguration().ToDictionary(t => t.Name);
devicePropertiesType = deviceProperties.GetType();
propIndex = devicePropertiesType.GetProperties().ToDictionary(t => t.Name);
args = new object[1];
foreach (DevicePropertyValueModel propVal in devicePropertyValueModels)
{
if ((propVal == null) ||
string.IsNullOrEmpty(propVal.Name))
{
continue;
}
// Pass through properties that don't have a specified
// configuration.
if (devicePropertyIndex.TryGetValue(propVal.Name, out propMetadata) && !propMetadata.IsEditable)
{
continue;
}
if (!propIndex.TryGetValue(propVal.Name, out propInfo) ||
((setter = propInfo.GetSetMethod()) == null) ||
((converter = TypeDescriptor.GetConverter(propInfo.PropertyType)) == null))
{
continue;
}
try
{
args[0] = converter.ConvertFromString(propVal.Value);
}
catch (NotSupportedException ex)
{
throw new InvalidOperationException(
string.Format(
CultureInfo.InvariantCulture,
"Unable to assign value, \"{0},\" to Device property, {1}.",
propVal.Value,
propInfo.Name),
ex);
}
setter.Invoke(deviceProperties, args);
}
}
