/// <summary>
/// Gets the object from XML element.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="element">The element.</param>
/// <param name="memberValue">The member value.</param>
/// <param name="modelType">Type of the model.</param>
/// <returns>Object or <c>null</c>.</returns>
/// <remarks>Note that this method can cause exceptions. The caller will handle them.</remarks>
private object GetObjectFromXmlElement(ISerializationContext <XmlSerializationContextInfo> context, XElement element, MemberValue memberValue, Type modelType)
{
object value = null;
string xmlName = element.Name.LocalName;
var propertyTypeToDeserialize = memberValue.Type;
var isNullAttribute = element.Attribute("IsNull");
var isNull = (isNullAttribute != null) ? StringToObjectHelper.ToBool(isNullAttribute.Value) : false;
if (isNull)
{
return(null);
}
var graphRefIdAttribute = element.Attribute(GraphRefId);
if (graphRefIdAttribute != null)
{
var graphId = int.Parse(graphRefIdAttribute.Value);
var referenceManager = context.ReferenceManager;
var referenceInfo = referenceManager.GetInfoById(graphId);
if (referenceInfo == null)
{
Log.Error("Expected to find graph object with id '{0}' in ReferenceManager, but it was not found. Defaulting value for member '{1}' to null", graphId, element.Name);
return(null);
}
return(referenceInfo.Instance);
}
var typeAttribute = element.Attribute("type"); // .GetAttribute("type", "http://catel.codeplex.com");
var attributeValue = (typeAttribute != null) ? typeAttribute.Value : null;
if (!string.IsNullOrEmpty(attributeValue))
{
var typeToDeserialize = TypeCache.GetTypeWithoutAssembly(attributeValue);
if (typeToDeserialize != null && propertyTypeToDeserialize != typeToDeserialize)
{
Log.Debug("Property type for property '{0}' is '{1}' but found type info that it should be deserialized as '{2}'",
memberValue.Name, memberValue.Type.FullName, attributeValue);
propertyTypeToDeserialize = typeToDeserialize;
}
else
{
Log.Warning("Property type for property '{0}' is '{1}' but found type info that it should be deserialized as '{2}'. Unfortunately the type cannot be found so the deserialization will probably fail.",
memberValue.Name, memberValue.Type.FullName, attributeValue);
}
}
var serializer = _dataContractSerializerFactory.GetDataContractSerializer(modelType, propertyTypeToDeserialize, xmlName, null, null);
using (var xmlReader = element.CreateReader())
{
value = serializer.ReadObject(xmlReader, false);
}
return(value);
}
/// <summary>
/// Gets the object from XML element.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="element">The element.</param>
/// <param name="memberValue">The member value.</param>
/// <param name="modelType">Type of the model.</param>
/// <returns>Object or <c>null</c>.</returns>
/// <remarks>Note that this method can cause exceptions. The caller will handle them.</remarks>
private object GetObjectFromXmlElement(ISerializationContext <XmlSerializationContextInfo> context, XElement element, MemberValue memberValue, Type modelType)
{
object value = null;
var xmlName = element.Name.LocalName;
var propertyTypeToDeserialize = memberValue.MemberType;
var isNullAttribute = element.Attribute("IsNull");
var isNull = (isNullAttribute != null) ? StringToObjectHelper.ToBool(isNullAttribute.Value) : false;
if (isNull)
{
return(null);
}
var graphRefIdAttribute = element.Attribute(GraphRefId);
if (graphRefIdAttribute != null)
{
var graphId = int.Parse(graphRefIdAttribute.Value);
var referenceManager = context.ReferenceManager;
var referenceInfo = referenceManager.GetInfoById(graphId);
if (referenceInfo == null)
{
Log.Error("Expected to find graph object with id '{0}' in ReferenceManager, but it was not found. Defaulting value for member '{1}' to null", graphId, element.Name);
return(null);
}
return(referenceInfo.Instance);
}
var typeAttribute = element.Attribute("type"); // .GetAttribute("type", "http://catel.codeplex.com");
var attributeValue = (typeAttribute != null) ? typeAttribute.Value : null;
if (!string.IsNullOrEmpty(attributeValue))
{
var typeToDeserialize = TypeCache.GetTypeWithoutAssembly(attributeValue);
if (typeToDeserialize != null && propertyTypeToDeserialize != typeToDeserialize)
{
Log.Debug("Property type for property '{0}' is '{1}' but found type info that it should be deserialized as '{2}'",
memberValue.Name, memberValue.MemberType.FullName, attributeValue);
propertyTypeToDeserialize = typeToDeserialize;
}
else
{
Log.Warning("Property type for property '{0}' is '{1}' but found type info that it should be deserialized as '{2}'. Unfortunately the type cannot be found so the deserialization will probably fail.",
memberValue.Name, memberValue.MemberType.FullName, attributeValue);
}
}
var isDeserialized = false;
if (propertyTypeToDeserialize == typeof(string) && ShouldSerializeUsingParseAndToString(memberValue, false))
{
var tempValue = memberValue.Value;
memberValue.Value = element.Value;
var parsedValue = DeserializeUsingObjectParse(context, memberValue);
if (parsedValue != null)
{
value = parsedValue;
isDeserialized = true;
}
else
{
memberValue.Value = tempValue;
}
}
if (!isDeserialized && ShouldSerializeModelAsCollection(propertyTypeToDeserialize))
{
var collection = value as IList;
if (collection == null)
{
collection = CreateModelInstance(propertyTypeToDeserialize) as IList;
}
if (collection == null)
{
throw Log.ErrorAndCreateException <NotSupportedException>("Cannot deserialize type '{0}', it should implement IList in order to be deserialized", propertyTypeToDeserialize.GetSafeFullName(false));
}
var realCollectionType = collection.GetType();
var childElementType = realCollectionType.GetCollectionElementType();
if (childElementType == null)
{
throw Log.ErrorAndCreateException <NotSupportedException>("Cannot deserialize type '{0}', could not determine the element type of the collection", propertyTypeToDeserialize.GetSafeFullName(false));
}
var serializer = _dataContractSerializerFactory.GetDataContractSerializer(propertyTypeToDeserialize, childElementType, xmlName, null, null);
var childElements = element.Elements();
foreach (var childElement in childElements)
{
using (var xmlReader = childElement.CreateReader())
{
var childValue = serializer.ReadObject(xmlReader, false);
if (childValue != null)
{
collection.Add(childValue);
}
}
}
value = collection;
isDeserialized = true;
}
if (!isDeserialized)
{
var serializer = _dataContractSerializerFactory.GetDataContractSerializer(modelType, propertyTypeToDeserialize, xmlName, null, null);
using (var xmlReader = element.CreateReader())
{
value = serializer.ReadObject(xmlReader, false);
}
}
// Fix for CTL-555
var graphIdAttribute = element.Attribute(GraphId);
if (graphIdAttribute != null)
{
var graphId = int.Parse(graphIdAttribute.Value);
var referenceManager = context.ReferenceManager;
referenceManager.RegisterManually(graphId, value);
}
return(value);
}