public bool WriteObject(XPathResult result, XPathNavigator node, object value)
{
var xml = new StringBuilder();
var settings = new XmlWriterSettings
{
OmitXmlDeclaration = true,
Indent = false
};
using (var writer = XmlWriter.Create(xml, settings))
{
if (value is IXmlSerializable)
{
SerializeCustom(writer, result, node, (IXmlSerializable)value);
}
else
{
Serialize(writer, result, node, value);
}
writer.Flush();
}
node.ReplaceSelf(xml.ToString());
return true;
}
public bool WriteObject(XPathResult result, XPathNavigator node, object value)
{
var rootOverride = new XmlRootAttribute(node.LocalName)
{
Namespace = node.NamespaceURI
};
var xml = new StringBuilder();
var settings = new XmlWriterSettings
{
OmitXmlDeclaration = true,
Indent = false
};
var namespaces = new XmlSerializerNamespaces();
namespaces.Add(string.Empty, string.Empty);
if (string.IsNullOrEmpty(node.NamespaceURI) == false)
{
var prefix = result.Context.AddNamespace(node.NamespaceURI);
namespaces.Add(prefix, node.NamespaceURI);
}
var serializer = new XmlSerializer(result.Type, rootOverride);
using (var writer = XmlWriter.Create(xml, settings))
{
serializer.Serialize(writer, value, namespaces);
writer.Flush();
}
node.ReplaceSelf(xml.ToString());
return true;
}
public bool ReadObject(XPathResult result, XPathNavigator node, out object value)
{
using (var reader = node.ReadSubtree())
{
reader.MoveToContent();
if (typeof(IXmlSerializable).IsAssignableFrom(result.Type))
{
value = DeserializeCustom(reader, result, node);
}
else
{
value = Deserialize(reader, result, node);
}
}
return (value != null);
}
private static void Serialize(XmlWriter writer, XPathResult result, XPathNavigator node, object value)
{
var namespaces = new XmlSerializerNamespaces();
namespaces.Add(string.Empty, string.Empty);
if (string.IsNullOrEmpty(node.NamespaceURI) == false)
{
var prefix = result.Context.AddNamespace(node.NamespaceURI);
namespaces.Add(prefix, node.NamespaceURI);
}
var rootOverride = new XmlRootAttribute(node.LocalName)
{
Namespace = node.NamespaceURI
};
var serializer = new XmlSerializer(result.Type, rootOverride);
serializer.Serialize(writer, value, namespaces);
}
public bool ReadObject(XPathResult result, XPathNavigator node, out object value)
{
var rootOverride = new XmlRootAttribute(node.LocalName)
{
Namespace = node.NamespaceURI
};
var serializer = new XmlSerializer(result.Type, rootOverride);
using (var reader = node.ReadSubtree())
{
reader.MoveToContent();
if (serializer.CanDeserialize(reader))
{
value = serializer.Deserialize(reader);
return true;
}
}
value = null;
return false;
}
private bool WriteCustom(XPathResult result, object value, IDictionaryAdapter dictionaryAdapter)
{
return result.WriteObject(value);
}
private void WriteArray(XPathResult result, object value, IDictionaryAdapter dictionaryAdapter)
{
var array = (Array)value;
var itemType = array.GetType().GetElementType();
foreach (var item in array)
{
var element = item;
var node = result.CreateNode(itemType, element, type => dictionaryAdapter.GetXmlMeta(type));
WriteProperty(node, ref element, dictionaryAdapter);
}
}
private void WriteComponent(XPathResult result, ref object value, IDictionaryAdapter dictionaryAdapter)
{
var source = value as IDictionaryAdapter;
if (source != null)
{
var sourceAdapter = For(source);
if (sourceAdapter != null)
{
var sourceRoot = sourceAdapter.Root;
var resultNode = result.GetNavigator(false);
if (sourceRoot != null && resultNode != null && sourceRoot.IsSamePosition(resultNode))
return;
}
var node = result.RemoveChildren();
if (result.Type != source.Meta.Type && result.OmitPolymorphism == false)
{
var xmlType = source.GetXmlMeta().XmlType;
var context = GetEffectiveContext(dictionaryAdapter);
context.SetXmlType(xmlType.TypeName, xmlType.Namespace, node);
}
var element = (IDictionaryAdapter)ReadComponent(result, false, dictionaryAdapter);
source.CopyTo(element);
value = element;
}
}
private void WriteFragment(XPathResult result, IXPathNavigable value)
{
var node = result.GetNavigator(true);
if (node == null)
{
root.AppendChild(value.CreateNavigator());
}
else if (value != null)
{
node.ReplaceSelf(value.CreateNavigator());
}
else
{
node.DeleteSelf();
}
}
private bool ReadCustom(XPathResult result, out object value)
{
return result.ReadObject(out value);
}
private object ReadArray(XPathResult result, IDictionaryAdapter dictionaryAdapter)
{
if (result.Type == typeof(byte[]))
{
XPathNavigator node;
if (result.GetNavigator(false, true, out node) && node != null)
{
return Convert.FromBase64String(node.InnerXml);
}
return null;
}
var itemType = result.Type.GetElementType();
var itemNodes = result.GetNodes(itemType, type => dictionaryAdapter.GetXmlMeta(type));
if (itemNodes == null) return null;
var items = itemNodes.Select(node => ReadProperty(node, false, dictionaryAdapter)).ToArray();
var array = Array.CreateInstance(itemType, items.Length);
items.CopyTo(array, 0);
return array;
}
private object ReadComponent(XPathResult result, bool ifExists, IDictionaryAdapter dictionaryAdapter)
{
XPathNavigator source;
if (result.Property != null)
ifExists = ifExists || dictionaryAdapter.Meta.Type.IsAssignableFrom(result.Property.PropertyType);
if (result.GetNavigator(false, true, out source) == false || (source == null && ifExists))
{
return null;
}
XPathAdapter xpathAdapter;
var elementType = result.Type;
if (source != null)
{
if (result.XmlMeta != null)
{
elementType = result.XmlMeta.Type;
}
else
{
var xmlType = GetEffectiveContext(dictionaryAdapter).GetXmlType(source);
elementType = dictionaryAdapter.GetXmlSubclass(xmlType, elementType) ?? elementType;
}
xpathAdapter = new XPathAdapter(source, this);
}
else
{
Func<XPathNavigator> createSource = () => result.GetNavigator(true);
xpathAdapter = new XPathAdapter(createSource, this);
}
return Create(dictionaryAdapter, elementType, null, xpathAdapter);
}
private void WriteSimple(XPathResult result, object value, IDictionaryAdapter dictionaryAdapter)
{
if (value == null)
{
result.Remove();
if (result.Property != null)
dictionaryAdapter.This.ExtendedProperties.Remove(result.Property.PropertyName);
return;
}
var node = result.GetNavigator(true);
if (result.Type.IsEnum || result.Type == typeof(Guid))
{
node.SetTypedValue(value.ToString());
}
else
{
try
{
node.SetTypedValue(value);
}
catch (InvalidCastException)
{
if (DefaultXmlSerializer.Instance.WriteObject(result, node, value) && result.Property != null)
{
dictionaryAdapter.This.ExtendedProperties[result.Property.PropertyName] = value;
}
}
}
}
private void WriteProperty(XPathResult result, object value, IDictionaryAdapter dictionaryAdapter)
{
var propertyType = result.Type;
if (WriteCustom(result, value, dictionaryAdapter))
return;
if (propertyType == typeof(string))
{
WriteSimple(result, value, dictionaryAdapter);
}
else if (typeof(IXPathNavigable).IsAssignableFrom(propertyType))
{
WriteFragment(result, (IXPathNavigable)value);
}
else if (propertyType.IsArray || typeof(IEnumerable).IsAssignableFrom(propertyType))
{
WriteCollection(result, value, dictionaryAdapter);
}
else if (propertyType.IsInterface)
{
WriteComponent(result, value, dictionaryAdapter);
}
else
{
WriteSimple(result, value, dictionaryAdapter);
}
}
public XPathResult Evaluate(XmlNode contextNode, ResultType type, XPathResult result)
{
return(default(XPathResult));
}
private object ReadSimple(XPathResult result)
{
XPathNavigator node;
if (result.GetNavigator(false, true, out node))
{
if (node != null)
{
Type underlyingType;
if (IsNullableType(result.Type, out underlyingType) == false)
{
underlyingType = result.Type;
}
if (underlyingType.IsEnum)
{
return Enum.Parse(underlyingType, node.Value);
}
else if (underlyingType == typeof(Guid))
{
return new Guid(node.Value);
}
try
{
return node.ValueAs(underlyingType);
}
catch (InvalidCastException)
{
object value;
if (DefaultXmlSerializer.Instance.ReadObject(result, node, out value))
return value;
}
}
if (result.Result != null)
return Convert.ChangeType(result.Result, result.Type);
}
return null;
}
private void WriteComponent(XPathResult result, object value, IDictionaryAdapter dictionaryAdapter)
{
if (result.Property != null)
{
dictionaryAdapter.This.ExtendedProperties.Remove(result.Property.PropertyName);
}
if (value == null)
{
result.Remove();
return;
}
var source = value as IDictionaryAdapter;
if (source != null)
{
var node = result.RemoveChildren();
if (result.Type != source.Meta.Type && result.OmitPolymorphism == false)
{
var xmlType = source.GetXmlMeta().XmlType;
Context.SetXmlType(xmlType.TypeName, xmlType.Namespace, node);
}
var element = (IDictionaryAdapter)ReadComponent(result, false, dictionaryAdapter);
source.CopyTo(element);
}
}
private object ReadCollection(XPathResult result, bool ifExists, IDictionaryAdapter dictionaryAdapter)
{
if (ifExists && result.Result == null)
return null;
if (result.Type.IsArray)
return ReadArray(result, dictionaryAdapter);
if (result.Type.IsGenericType)
return ReadList(result, dictionaryAdapter);
return null;
}
private void WriteCollection(XPathResult result, object value, IDictionaryAdapter dictionaryAdapter)
{
result.Remove();
if (value != null)
{
if (result.Type.IsArray)
{
WriteArray(result, value, dictionaryAdapter);
}
else if (result.Type.IsGenericType)
{
WriteList(result, value, dictionaryAdapter);
}
}
}
private object ReadList(XPathResult result, IDictionaryAdapter dictionaryAdapter)
{
Type listType = null, initializerType = null;
var arguments = result.Type.GetGenericArguments();
var genericDef = result.Type.GetGenericTypeDefinition();
var itemType = arguments[0];
Func<Type, XmlMetadata> getXmlMeta = type => dictionaryAdapter.GetXmlMeta(type);
var itemNodes = result.GetNodes(itemType, getXmlMeta);
if (itemNodes == null) return null;
if (genericDef == typeof(IEnumerable<>) || genericDef == typeof(ICollection<>) || genericDef == typeof(List<>))
{
listType = typeof(EditableList<>).MakeGenericType(arguments);
}
else if (
#if !DOTNET35
//NOTE: what about SortedSet?
genericDef == typeof(ISet<>) ||
#endif
genericDef == typeof(HashSet<>))
{
listType = typeof(List<>).MakeGenericType(arguments);
}
else
{
listType = typeof(EditableBindingList<>).MakeGenericType(arguments);
initializerType = typeof(BindingListInitializer<>).MakeGenericType(arguments);
}
var list = (IList)Activator.CreateInstance(listType);
foreach (var item in itemNodes)
{
list.Add(ReadProperty(item, false, dictionaryAdapter));
}
if (
#if !DOTNET35
//NOTE: what about SortedSet?
genericDef == typeof(ISet<>) ||
#endif
genericDef == typeof(HashSet<>))
{
return Activator.CreateInstance(typeof(HashSet<>).MakeGenericType(arguments), list);
}
if (initializerType != null)
{
Func<object> addNew = () =>
{
var node = result.CreateNode(itemType, null, getXmlMeta);
return ReadProperty(node, false, dictionaryAdapter);
};
Func<int, object, object> addAt = (index, item) =>
{
var node = result.CreateNode(itemType, item, getXmlMeta);
WriteProperty(node, ref item, dictionaryAdapter);
return item;
};
Func<int, object, object> setAt = (index, item) =>
{
var node = result.GetNodeAt(itemType, index);
WriteProperty(node, ref item, dictionaryAdapter);
return item;
};
Action<int> removeAt = index =>
{
object value = list;
if (dictionaryAdapter.ShouldClearProperty(result.Property, value))
{
result.Remove(true);
return;
}
result.RemoveAt(index);
};
Action reset = () =>
{
object value = list;
if (dictionaryAdapter.ShouldClearProperty(result.Property, value))
{
result.Remove(true);
return;
}
WriteCollection(result, ref value, dictionaryAdapter);
};
var initializer = (IValueInitializer)Activator.CreateInstance(
initializerType, addAt, addNew, setAt, removeAt, reset);
initializer.Initialize(dictionaryAdapter, list);
}
return list;
}
private bool WriteCustom(XPathResult result, object value, IDictionaryAdapter dictionaryAdapter)
{
if (result.WriteObject(value))
{
if (result.Property != null)
{
dictionaryAdapter.This.ExtendedProperties[result.Property.PropertyName] = value;
}
return true;
}
return false;
}
private void WriteProperty(XPathResult result, ref object value, IDictionaryAdapter dictionaryAdapter)
{
var propertyType = result.Type;
var shouldRemove = (value == null);
if (result.Property != null)
{
shouldRemove = shouldRemove || dictionaryAdapter.ShouldClearProperty(result.Property, value);
}
if (shouldRemove)
{
result.Remove(true);
value = null;
return;
}
if (WriteCustom(result, value, dictionaryAdapter))
{
return;
}
if (propertyType == typeof(string))
{
WriteSimple(result, value, dictionaryAdapter);
}
else if (typeof(IXPathNavigable).IsAssignableFrom(propertyType))
{
WriteFragment(result, (IXPathNavigable)value);
}
else if (propertyType.IsArray || typeof(IEnumerable).IsAssignableFrom(propertyType))
{
WriteCollection(result, ref value, dictionaryAdapter);
}
else if (propertyType.IsInterface)
{
WriteComponent(result, ref value, dictionaryAdapter);
}
else
{
WriteSimple(result, value, dictionaryAdapter);
}
}
private object ReadArray(XPathResult result, IDictionaryAdapter dictionaryAdapter)
{
var itemType = result.Type.GetElementType();
var itemNodes = result.GetNodes(itemType, type => dictionaryAdapter.GetXmlMeta(type));
if (itemNodes == null) return null;
var items = itemNodes.Select(node => ReadProperty(node, false, dictionaryAdapter)).ToArray();
var array = Array.CreateInstance(itemType, items.Length);
items.CopyTo(array, 0);
return array;
}
private void WriteSimple(XPathResult result, object value, IDictionaryAdapter dictionaryAdapter)
{
var node = result.GetNavigator(true);
if (result.Type.IsEnum || result.Type == typeof(Guid))
{
node.SetTypedValue(value.ToString());
}
else
{
try
{
node.SetTypedValue(value);
}
catch (InvalidCastException)
{
DefaultXmlSerializer.Instance.WriteObject(result, node, value);
}
}
}
private void WriteCollection(XPathResult result, ref object value, IDictionaryAdapter dictionaryAdapter)
{
result.Remove(value == null);
if (value != null)
{
if (result.Type.IsArray)
{
WriteArray(result, value, dictionaryAdapter);
}
else if (result.Type.IsGenericType)
{
WriteList(result, value, dictionaryAdapter);
}
if (result.Property != null)
{
value = ((IDictionaryPropertyGetter)this).GetPropertyValue(dictionaryAdapter, result.Key, null, result.Property, false);
}
}
}
private void WriteCollection(XPathResult result, ref object value, IDictionaryAdapter dictionaryAdapter)
{
if (value is byte[])
{
var node = result.GetNavigator(true);
node.SetValue(Convert.ToBase64String((byte[])value));
return;
}
result.Remove(value == null);
if (value != null)
{
if (result.Type.IsArray)
{
WriteArray(result, value, dictionaryAdapter);
}
else if (result.Type.IsGenericType)
{
WriteList(result, value, dictionaryAdapter);
}
if (result.Property != null)
{
value = ((IDictionaryPropertyGetter)this).GetPropertyValue(dictionaryAdapter, result.Key, null, result.Property, false);
}
}
}
public XPathResult Evaluate(XmlNode contextNode, ResultType type, XPathResult result)
{
return default(XPathResult);
}
private void WriteList(XPathResult result, object value, IDictionaryAdapter dictionaryAdapter)
{
var arguments = result.Type.GetGenericArguments();
var itemType = arguments[0];
foreach (var item in (IEnumerable)value)
{
var element = item;
var node = result.CreateNode(itemType, element, type => dictionaryAdapter.GetXmlMeta(type));
WriteProperty(node, ref element, dictionaryAdapter);
}
}
private object ReadProperty(XPathResult result, bool ifExists, IDictionaryAdapter dictionaryAdapter)
{
object value;
var propertyType = result.Type;
if (ReadCustom(result, out value))
return value;
if (propertyType != typeof(string))
{
if (typeof(IXPathNavigable).IsAssignableFrom(propertyType))
return ReadFragment(result);
if (propertyType.IsArray || typeof(IEnumerable).IsAssignableFrom(propertyType))
return ReadCollection(result, ifExists, dictionaryAdapter);
if (propertyType.IsInterface)
return ReadComponent(result, ifExists, dictionaryAdapter);
}
return ReadSimple(result);
}
public static XPathResult Evaluate(string expression, XmlNode contextNode, XPathNSResolver resolver, ushort type, XPathResult result)
{
return default(XPathResult);
}
private object ReadFragment(XPathResult result)
{
XPathNavigator node;
result.GetNavigator(false, true, out node);
if (node == null) return null;
if (result.Type == typeof(XmlElement))
{
var document = new XmlDocument();
document.Load(node.ReadSubtree());
return document.DocumentElement;
}
return node.Clone();
}
