protected override object GetValueFromXml(XElement root, XName name, PropertyInfo prop, bool useExactName)
{
bool isAttribute = false;
//Check for the DeserializeAs attribute on the property
DeserializeAsAttribute options = prop.GetAttribute <DeserializeAsAttribute>();
if (options != null)
{
name = options.Name ?? name;
isAttribute = options.Attribute;
}
if (!isAttribute)
{
return(base.GetValueFromXml(root, name, prop, useExactName));
}
XAttribute attributeVal = GetAttributeByName(root, name, useExactName);
return(attributeVal != null ? attributeVal.Value : base.GetValueFromXml(root, name, prop, useExactName));
}
protected virtual object Map(object x, XElement root)
{
Type objType = x.GetType();
PropertyInfo[] props = objType.GetProperties();
bool deserializeFromContentAttributeAlreadyUsed = false;
foreach (var prop in props)
{
var type = prop.PropertyType.GetTypeInfo();
var typeIsPublic = type.IsPublic || type.IsNestedPublic;
if (!typeIsPublic || !prop.CanWrite)
{
continue;
}
bool deserializeFromContent = false;
bool isNameDefinedInAttribute = false;
XName name = null;
var attributes = prop.GetCustomAttributes(typeof(DeserializeAsAttribute), false);
if (attributes.Any())
{
DeserializeAsAttribute attribute = (DeserializeAsAttribute)attributes.First();
name = attribute.Name.AsNamespaced(Namespace);
isNameDefinedInAttribute = !string.IsNullOrEmpty(name?.LocalName);
deserializeFromContent = attribute.Content;
if (deserializeFromContentAttributeAlreadyUsed && deserializeFromContent)
{
throw new ArgumentException("Class cannot have two properties marked with " +
"SerializeAs(Content = true) attribute.");
}
deserializeFromContentAttributeAlreadyUsed |= deserializeFromContent;
}
if (name == null)
{
name = prop.Name.AsNamespaced(Namespace);
}
var value = GetValueFromXml(root, name, prop, isNameDefinedInAttribute);
if (value == null)
{
// special case for text content node
if (deserializeFromContent)
{
var textNode = root.Nodes().FirstOrDefault(n => n is XText);
if (textNode != null)
{
value = ((XText)textNode).Value;
prop.SetValue(x, value, null);
}
continue;
}
// special case for inline list items
if (type.IsGenericType)
{
var genericType = type.GetGenericArguments()[0];
var first = GetElementByName(root, genericType.Name);
var list = (IList)Activator.CreateInstance(type.AsType());
if (first != null && root != null)
{
var elements = root.Elements(first.Name);
PopulateListFromElements(genericType, elements, list);
}
prop.SetValue(x, list, null);
}
continue;
}
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable <>))
{
// if the value is empty, set the property to null...
if (string.IsNullOrEmpty(value.ToString()))
{
prop.SetValue(x, null, null);
continue;
}
type = type.GetGenericArguments()[0].GetTypeInfo();
}
var asType = type.AsType();
if (asType == typeof(bool))
{
var toConvert = value.ToString()
.ToLower();
prop.SetValue(x, XmlConvert.ToBoolean(toConvert), null);
}
else if (type.IsPrimitive)
{
prop.SetValue(x, value.ChangeType(asType, Culture), null);
}
else if (type.IsEnum)
{
var converted = type.AsType().FindEnumValue(value.ToString(), Culture);
prop.SetValue(x, converted, null);
}
else if (asType == typeof(Uri))
{
var uri = new Uri(value.ToString(), UriKind.RelativeOrAbsolute);
prop.SetValue(x, uri, null);
}
else if (asType == typeof(string))
{
prop.SetValue(x, value, null);
}
else if (asType == typeof(DateTime))
{
value = DateFormat.HasValue()
? DateTime.ParseExact(value.ToString(), DateFormat, Culture)
: DateTime.Parse(value.ToString(), Culture);
prop.SetValue(x, value, null);
}
else if (asType == typeof(DateTimeOffset))
{
var toConvert = value.ToString();
if (string.IsNullOrEmpty(toConvert))
{
continue;
}
DateTimeOffset deserialisedValue;
try
{
deserialisedValue = XmlConvert.ToDateTimeOffset(toConvert);
prop.SetValue(x, deserialisedValue, null);
}
catch (Exception)
{
if (TryGetFromString(toConvert, out var result, asType))
{
prop.SetValue(x, result, null);
}
else
{
//fallback to parse
deserialisedValue = DateTimeOffset.Parse(toConvert);
prop.SetValue(x, deserialisedValue, null);
}
}
}
