protected virtual ISourceProxy CreateProxy(object source, IPathNode node)
{
IProxyType proxyType = source.GetType().AsProxy();
if (node is IndexedNode)
{
if (!(source is ICollection))
{
throw new ProxyException("Type \"{0}\" is not a collection and cannot be accessed by index \"{1}\".", proxyType.Type.Name, node.ToString());
}
var itemInfo = proxyType.GetItem();
if (itemInfo == null)
{
throw new MissingMemberException(proxyType.Type.FullName, "Item");
}
var intIndexedNode = node as IntegerIndexedNode;
if (intIndexedNode != null)
{
return(new IntItemNodeProxy((ICollection)source, intIndexedNode.Value, itemInfo));
}
var stringIndexedNode = node as StringIndexedNode;
if (stringIndexedNode != null)
{
return(new StringItemNodeProxy((ICollection)source, stringIndexedNode.Value, itemInfo));
}
return(null);
}
var memberNode = node as MemberNode;
if (memberNode == null)
{
return(null);
}
var memberInfo = memberNode.MemberInfo;
if (memberInfo == null)
{
memberInfo = source.GetType().FindFirstMemberInfo(memberNode.Name);
}
if (memberInfo == null || memberInfo.IsStatic())
{
throw new MissingMemberException(proxyType.Type.FullName, memberNode.Name);
}
var propertyInfo = memberInfo as PropertyInfo;
if (propertyInfo != null)
{
IProxyPropertyInfo proxyPropertyInfo = propertyInfo.AsProxy();
var valueType = proxyPropertyInfo.ValueType;
if (typeof(IObservableProperty).IsAssignableFrom(valueType))
{
object observableValue = proxyPropertyInfo.GetValue(source);
if (observableValue == null)
{
return(null);
}
return(new ObservableNodeProxy(source, (IObservableProperty)observableValue));
}
else if (typeof(IInteractionRequest).IsAssignableFrom(valueType))
{
object request = proxyPropertyInfo.GetValue(source);
if (request == null)
{
return(null);
}
return(new InteractionNodeProxy(source, (IInteractionRequest)request));
}
else
{
return(new PropertyNodeProxy(source, proxyPropertyInfo));
}
}
var fieldInfo = memberInfo as FieldInfo;
if (fieldInfo != null)
{
IProxyFieldInfo proxyFieldInfo = fieldInfo.AsProxy();
var valueType = proxyFieldInfo.ValueType;
if (typeof(IObservableProperty).IsAssignableFrom(valueType))
{
object observableValue = proxyFieldInfo.GetValue(source);
if (observableValue == null)
{
return(null);
}
return(new ObservableNodeProxy(source, (IObservableProperty)observableValue));
}
else if (typeof(IInteractionRequest).IsAssignableFrom(valueType))
{
object request = proxyFieldInfo.GetValue(source);
if (request == null)
{
return(null);
}
return(new InteractionNodeProxy(source, (IInteractionRequest)request));
}
else
{
return(new FieldNodeProxy(source, proxyFieldInfo));
}
}
var methodInfo = memberInfo as MethodInfo;
if (methodInfo != null && methodInfo.ReturnType.Equals(typeof(void)))
{
return(new MethodNodeProxy(source, methodInfo.AsProxy()));
}
var eventInfo = memberInfo as EventInfo;
if (eventInfo != null)
{
return(new EventNodeProxy(source, eventInfo.AsProxy()));
}
return(null);
}