private static void AddValue(XElement element, DynamicElement item)
{
if (!element.HasElements && !string.IsNullOrEmpty(element.Value))
{
item["Value"] = element.Value;
}
}
private static Array BindArray(Array source, DynamicElement config)
{
var children = config.GetChildren2().ToArray();
var arrayLength = source.Length;
var elementType = source.GetType().GetElementType();
var newArray = Array.CreateInstance(elementType, arrayLength + children.Length);
// binding to array has to preserve already initialized arrays with values
if (arrayLength > 0)
{
Array.Copy(source, newArray, arrayLength);
}
for (int i = 0; i < children.Length; i++)
{
try
{
var item = BindInstance(
type: elementType,
instance: null,
element: children[i]);
if (item != null)
{
newArray.SetValue(item, arrayLength + i);
}
}
catch
{
}
}
return(newArray);
}
private static void BindProperty(PropertyInfo property, object instance, DynamicElement element)
{
// We don't support set only, non public, or indexer properties
if (property.GetMethod == null ||
!property.GetMethod.IsPublic ||
property.GetMethod.GetParameters().Length > 0)
{
return;
}
var propertyValue = property.GetValue(instance);
var hasPublicSetter = property.SetMethod != null && property.SetMethod.IsPublic;
if (propertyValue == null && !hasPublicSetter)
{
// Property doesn't have a value and we cannot set it so there is no
// point in going further down the graph
return;
}
//propertyValue = BindInstance(property.PropertyType, propertyValue, element.GetSection(property.Name));
propertyValue = BindInstance(property.PropertyType, propertyValue, element[property.Name]); //TODO
if (propertyValue != null && hasPublicSetter)
{
property.SetValue(instance, propertyValue);
}
}
private static void BindCollection(object collection, Type collectionType, DynamicElement config)
{
var typeInfo = collectionType.GetTypeInfo();
// ICollection<T> is guaranteed to have exacly one parameter
var itemType = typeInfo.GenericTypeArguments[0];
var addMethod = typeInfo.GetDeclaredMethod("Add");
foreach (var section in config.GetChildren2())
{
try
{
var item = BindInstance(
type: itemType,
instance: null,
element: section);
if (item != null)
{
addMethod.Invoke(collection, new[] { item });
}
}
catch
{
}
}
}
private static void BindDictionary(object dictionary, Type dictionaryType, DynamicElement config)
{
var typeInfo = dictionaryType.GetTypeInfo();
// IDictionary<K,V> is guaranteed to have exactly two parameters
var keyType = typeInfo.GenericTypeArguments[0];
var valueType = typeInfo.GenericTypeArguments[1];
if (keyType != typeof(string))
{
// We only support string keys
return;
}
var addMethod = typeInfo.GetDeclaredMethod("Add");
foreach (var child in config.GetChildren2())
{
var item = BindInstance(
type: valueType,
instance: null,
element: child);
if (item != null)
{
//var key = child.Key;
var key = string.Empty; //TODO
addMethod.Invoke(dictionary, new[] { key, item });
}
}
}
private static void AddAttributes(XElement element, DynamicElement item)
{
if (element.Attributes().Any())
{
foreach (var attribute in element.Attributes())
{
item[attribute.Name.LocalName] = attribute.Value;
}
}
}
public static dynamic ToDynamic(this XElement element)
{
var item = new DynamicElement();
AddChildren(element, item);
AddAttributes(element, item);
AddValue(element, item);
return(item);
}
private static void BindNonScalar(this DynamicElement element, object instance)
{
if (instance != null)
{
foreach (var property in GetAllProperties(instance.GetType().GetTypeInfo()))
{
BindProperty(property, instance, element);
}
}
}
public static T Bind <T>(this DynamicElement element, T defaultValue)
{
var value = element.Bind(typeof(T));
if (value == null)
{
return(defaultValue);
}
return((T)value);
}
public static object Bind(this DynamicElement element, Type type)
{
if (element == null)
{
throw new ArgumentNullException(nameof(element));
}
return(BindInstance(
type: type,
instance: null,
element: element));
}
private static object BindInstance(Type type, object instance, DynamicElement element)
{
var section = element;
var configValue = section?["Value"]; //TODO
if (configValue != null)
{
// Leaf nodes are always reinitialized
return(ReadValue(type, configValue, section));
}
if (element != null && element.GetChildren().Any())
{
if (instance == null)
{
instance = CreateInstance(type);
}
// See if its a Dictionary
var collectionInterface = FindOpenGenericInterface(typeof(IDictionary <,>), type);
if (collectionInterface != null)
{
BindDictionary(instance, collectionInterface, element);
}
else if (type.IsArray)
{
instance = BindArray((Array)instance, element);
}
else
{
// See if its an ICollection
collectionInterface = FindOpenGenericInterface(typeof(ICollection <>), type);
if (collectionInterface != null)
{
BindCollection(instance, collectionInterface, element);
}
// Something else
else
{
BindNonScalar(element, instance);
}
}
}
return(instance);
}
private static object ReadValue(Type type, string value, DynamicElement element)
{
if (type.GetTypeInfo().IsGenericType&& type.GetGenericTypeDefinition() == typeof(Nullable <>))
{
return(ReadValue(Nullable.GetUnderlyingType(type), value, element));
}
try
{
//return TypeDescriptor.GetConverter(type).ConvertFromInvariantString(element.Value);
return(TypeDescriptor.GetConverter(type).ConvertFromInvariantString(element["Value"])); //TODO
}
catch (Exception ex)
{
//throw new InvalidOperationException(Resources.FormatError_FailedBinding(element.Value, type), ex);
throw new InvalidOperationException(Resources.FormatError_FailedBinding(element["Value"], type), ex); //TODO
}
}
private static void AddChildren(XElement element, DynamicElement item)
{
if (element.HasElements)
{
var uniqueElements = element.Elements().Where(el => element.Elements().Count(el2 => el2.Name.LocalName.Equals(el.Name.LocalName)) == 1).ToList();
var repeatedElements = element.Elements().Except(uniqueElements);
foreach (var repeatedElementGroup in repeatedElements.GroupBy(re => re.Name.LocalName).OrderBy(el => el.Key))
{
var list = new List <dynamic>();
foreach (var repeatedElement in repeatedElementGroup)
{
list.Add(ToDynamic(repeatedElement));
}
item[PluralizationService.Pluralize(repeatedElementGroup.Key)] = list;
}
foreach (var uniqueElement in uniqueElements.OrderBy(el => el.Name.LocalName))
{
item[uniqueElement.Name.LocalName] = ToDynamic(uniqueElement);
}
}
}
private static IDictionary <string, dynamic> GetChildren(this DynamicElement element)
{
var list = element.Properties.Where(p => typeof(DynamicElement) == p.Value.GetType() || typeof(List <dynamic>) == p.Value.GetType()).ToDictionary(e => e.Key, e => e.Value);
return(list);
}
private static IEnumerable <DynamicElement> GetChildren2(this DynamicElement element)
{
return(new DynamicElement[] {});
}
public static T Bind <T>(this DynamicElement element)
{
return(element.Bind(default(T)));
}