/// <summary>
/// Initializes a new instance of the <see cref="Implementation" /> class.
/// </summary>
/// <param name="underlyingType">
/// The underlying type of the property or collection represented.
/// </param>
/// <param name="settings">
/// The settings used to control how configuration objects are created and the features they support.
/// </param>
internal Implementation(Type underlyingType, ConfigurationObjectSettings settings)
{
ImplementationKind = GetImplementationKind(underlyingType, out var isReadOnlyColectionType);
_settings = settings;
Type elementType;
switch (ImplementationKind)
{
case ImplementationKind.ConfigurationObject:
ImplementationType = ServiceCollectionExtensions.GenerateConfigurationObjectType(underlyingType, settings);
Type = underlyingType;
break;
case ImplementationKind.ConfigurationCollection:
elementType = underlyingType.GenericTypeArguments.First();
if (isReadOnlyColectionType)
{
ImplementationType = typeof(ReadOnlyConfigurationCollection <>).MakeGenericType(elementType);
}
else
{
ImplementationType = typeof(ConfigurationCollection <>).MakeGenericType(elementType);
}
Type = elementType;
break;
case ImplementationKind.ConfigurationDictionary:
elementType = underlyingType.GenericTypeArguments.First();
if (isReadOnlyColectionType)
{
ImplementationType = typeof(ReadOnlyConfigurationDictionary <>).MakeGenericType(elementType);
}
else
{
ImplementationType = typeof(ConfigurationDictionary <>).MakeGenericType(elementType);
}
Type = elementType;
break;
default:
ImplementationType = null;
Type = underlyingType;
break;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ConfigurationObjectBase{TInterface}" /> class. This is the
/// interface used when creating the root instance for the service collection.
/// </summary>
/// <param name="propertyDef">
/// The definition of the property defined by this object. This can be <see lang="null" /> if this object is
/// the root of the hierarchy.
/// </param>
/// <param name="configurationRoot">
/// The configuration root from which to read and write values.
/// </param>
/// <param name="parent">
/// The parent object to which this one belongs. <see langword="null" /> if this is a root object.
/// </param>
/// <param name="settings">
/// The settings used to control how configuration objects are created and the features they support.
/// </param>
/// <param name="validators">
/// The validators that can be applied to configuration objects of this type.
/// </param>
protected ConfigurationObjectBase(IPropertyDef?propertyDef, IConfigurationRoot configurationRoot, IConfigurationParent parent, ConfigurationObjectSettings settings, IEnumerable <IConfigurationObjectValidator <TInterface> > validators) : base(propertyDef,
ServiceCollectionExtensions.GetConfigurationObjectDefinition(typeof(TInterface), settings), configurationRoot, parent)
{
_validators = validators?.ToArray() ?? Array.Empty <IConfigurationObjectValidator <TInterface> >();
DisablePropertyChangedEvents();
try
{
foreach (var value in Values)
{
if (value.PropertyDef.HasDefaultValue)
{
value.Value = value.PropertyDef.DefaultValue;
value.Saved();
}
}
}
finally
{
EnablePropertyChangedEvents();
Validate();
}
}