public NodeModel CreateNodeFromXml(XmlElement nodeElement, SaveContext context, ElementResolver resolver)
{
string assembly = "";
string function;
var nickname = nodeElement.Attributes["nickname"].Value;
FunctionDescriptor descriptor;
Trace.Assert(nodeElement.Attributes != null, "nodeElement.Attributes != null");
if (nodeElement.Attributes["assembly"] == null)
{
assembly = DetermineAssemblyName(nodeElement);
function = nickname.Replace(".get", ".");
}
else
{
string xmlSignature = nodeElement.Attributes["function"].Value;
string hintedSigniture =
libraryServices.FunctionSignatureFromFunctionSignatureHint(xmlSignature);
if (hintedSigniture != null)
{
nodeElement.Attributes["nickname"].Value =
libraryServices.NicknameFromFunctionSignatureHint(xmlSignature);
function = hintedSigniture;
// if the node needs additional parameters, add them here
libraryServices.AddAdditionalAttributesToNode(xmlSignature, nodeElement);
libraryServices.AddAdditionalElementsToNode(xmlSignature, nodeElement);
}
else
{
function = xmlSignature;
}
var xmlAttribute = nodeElement.Attributes["assembly"];
if (xmlAttribute != null)
{
assembly = Uri.UnescapeDataString(xmlAttribute.Value);
}
}
if (context == SaveContext.File && !string.IsNullOrEmpty(assembly))
{
var document = nodeElement.OwnerDocument;
var docPath = Nodes.Utilities.GetDocumentXmlPath(document);
assembly = Nodes.Utilities.MakeAbsolutePath(docPath, assembly);
if (libraryServices.IsLibraryLoaded(assembly))
{
descriptor = libraryServices.GetFunctionDescriptor(assembly, function);
}
else
{
// If the desired assembly is not loaded already. Check if it belongs to BuiltInFunctionGroup.
if (libraryServices.IsFunctionBuiltIn(assembly, nickname))
{
descriptor = libraryServices.GetFunctionDescriptor(function);
}
else
{
// If neither of these, Dynamo need to import the library.
try
{
libraryServices.ImportLibrary(assembly);
descriptor = libraryServices.GetFunctionDescriptor(assembly, function);
}
catch (LibraryLoadFailedException)
{
descriptor = libraryServices.GetFunctionDescriptor(function);
}
}
}
}
else
{
descriptor = libraryServices.GetFunctionDescriptor(function);
}
if (null == descriptor)
{
var inputcount = DetermineFunctionInputCount(nodeElement);
return(new DummyNode(
inputcount,
1,
nickname,
nodeElement,
assembly,
DummyNode.Nature.Unresolved));
}
DSFunctionBase result;
if (descriptor.IsVarArg)
{
result = new DSVarArgFunction(descriptor);
var akas = typeof(DSVarArgFunction).GetCustomAttribute <AlsoKnownAsAttribute>().Values;
if (nodeElement.Name != typeof(DSVarArgFunction).FullName &&
akas.All(aka => aka != nodeElement.Name))
{
VariableInputNodeController.SerializeInputCount(
nodeElement,
descriptor.Parameters.Count());
}
}
else
{
result = new DSFunction(descriptor);
}
result.Deserialize(nodeElement, context);
// In case of input parameters mismatch, use default arguments for parameters that have one
if (!descriptor.MangledName.EndsWith(function))
{
string[] oldSignature = function.Split('@');
string[] inputTypes = oldSignature.Length > 1 ? oldSignature[1].Split(',') : new string[] {};
int i = 0, j = 0;
foreach (var param in descriptor.InputParameters)
{
if (i >= inputTypes.Length || param.Item2 != inputTypes[i])
{
result.InPorts[j].UsingDefaultValue = result.InPorts[j].DefaultValue != null;
}
else
{
i++;
}
j++;
}
}
return(result);
}
public NodeModel CreateNodeFromXml(XmlElement nodeElement, SaveContext context)
{
string assembly = "";
string function;
var nickname = nodeElement.Attributes["nickname"].Value;
FunctionDescriptor descriptor;
Trace.Assert(nodeElement.Attributes != null, "nodeElement.Attributes != null");
if (nodeElement.Attributes["assembly"] == null)
{
assembly = DetermineAssemblyName(nodeElement);
function = nickname.Replace(".get", ".");
}
else
{
string xmlSignature = nodeElement.Attributes["function"].Value;
string hintedSigniture =
libraryServices.FunctionSignatureFromFunctionSignatureHint(xmlSignature);
if (hintedSigniture != null)
{
nodeElement.Attributes["nickname"].Value =
libraryServices.NicknameFromFunctionSignatureHint(xmlSignature);
function = hintedSigniture;
// if the node needs additional parameters, add them here
if (libraryServices.FunctionSignatureNeedsAdditionalAttributes(xmlSignature))
{
libraryServices.AddAdditionalAttributesToNode(xmlSignature, nodeElement);
}
if (libraryServices.FunctionSignatureNeedsAdditionalElements(xmlSignature))
{
libraryServices.AddAdditionalElementsToNode(xmlSignature, nodeElement);
}
}
else
{
function = xmlSignature;
}
var xmlAttribute = nodeElement.Attributes["assembly"];
if (xmlAttribute != null)
{
assembly = Uri.UnescapeDataString(xmlAttribute.Value);
}
}
if (context == SaveContext.File && !string.IsNullOrEmpty(assembly))
{
var document = nodeElement.OwnerDocument;
var docPath = Nodes.Utilities.GetDocumentXmlPath(document);
assembly = Nodes.Utilities.MakeAbsolutePath(docPath, assembly);
descriptor = libraryServices.IsLibraryLoaded(assembly) || libraryServices.ImportLibrary(assembly)
? libraryServices.GetFunctionDescriptor(assembly, function)
: libraryServices.GetFunctionDescriptor(function);
}
else
{
descriptor = libraryServices.GetFunctionDescriptor(function);
}
if (null == descriptor)
{
var inputcount = DetermineFunctionInputCount(nodeElement);
return(new DummyNode(
inputcount,
1,
nickname,
nodeElement,
assembly,
DummyNode.Nature.Unresolved));
}
DSFunctionBase result;
if (descriptor.IsVarArg)
{
result = new DSVarArgFunction(descriptor);
if (nodeElement.Name != typeof(DSVarArgFunction).FullName)
{
VariableInputNodeController.SerializeInputCount(
nodeElement,
descriptor.Parameters.Count());
}
}
else
{
result = new DSFunction(descriptor);
}
result.Deserialize(nodeElement, context);
return(result);
}