private void GetPortDefs()
{
PyObject callResult = null;
try {
callResult = _ctx.Call("init", new PyObject[0]);
DisplayPythonError(null);
}
catch (PyException e) {
DisplayPythonError(e);
Parent.Context.Notify(new GraphNotification(this, GraphNotification.NotificationType.Error,
$"Python: While executing init function: {e.Message}"));
return;
}
catch (EntryPointNotFoundException e) {
Parent.Context.Notify(new GraphNotification(this, GraphNotification.NotificationType.Error,
$"Python: While executing init function: {e.Message}"));
return;
}
var existingInputs = InputPorts.ToList();
var existingOutputs = OutputPorts.ToList();
using (var portDefs = new PyDict(callResult)) {
using (var portInDefs = new PyList(portDefs["in"])) {
foreach (var item in portInDefs)
{
var tuple = new PyTuple(item);
var portName = new PyString(tuple.Get(0).Handle, false).Value;
var portType = new PyString(tuple.Get(1).Handle, false).Value;
var existingPort = existingInputs.FirstOrDefault(p => p.Name == portName);
try {
switch (portType)
{
case "data":
if (existingPort != null)
{
if (!existingPort.DataType.Equals(PortDataTypes.TypeIdSignal1D))
{
RemovePort(existingPort);
new NodeSystemLib2.FormatData1D.InputPortData1D(this, portName);
}
existingInputs.Remove(existingPort);
}
else
{
new NodeSystemLib2.FormatData1D.InputPortData1D(this, portName);
}
break;
case "value":
if (existingPort != null)
{
if (!existingPort.DataType.Equals(PortDataTypes.TypeIdValueDouble))
{
RemovePort(existingPort);
new NodeSystemLib2.FormatValue.InputPortValueDouble(this, portName);
}
existingInputs.Remove(existingPort);
}
else
{
new NodeSystemLib2.FormatValue.InputPortValueDouble(this, portName);
}
break;
default:
Parent.Context.Notify(new GraphNotification(this, GraphNotification.NotificationType.Error, $"Python: unknown port format '{portType}' for input port named {portName}"));
break;
}
} catch (Exception e) {
Parent.Context.Notify(new GraphNotification(this, GraphNotification.NotificationType.Error, $"Python: error while processing input port: {portName}: {e.Message}"));
}
}
}
foreach (var port in existingInputs)
{
RemovePort(port);
}
using (var portOutDefs = new PyList(portDefs["out"])) {
foreach (var item in portOutDefs)
{
var tuple = new PyTuple(item);
var portName = new PyString(tuple.Get(0).Handle, false).Value;
var portType = new PyString(tuple.Get(1).Handle, false).Value;
var existingPort = existingOutputs.FirstOrDefault(p => p.Name == portName);
try {
switch (portType)
{
case "data":
if (existingPort != null)
{
if (!existingPort.DataType.Equals(PortDataTypes.TypeIdSignal1D))
{
RemovePort(existingPort);
new NodeSystemLib2.FormatData1D.OutputPortData1D(this, portName);
}
existingOutputs.Remove(existingPort);
}
else
{
new NodeSystemLib2.FormatData1D.OutputPortData1D(this, portName);
}
break;
case "value":
if (existingPort != null)
{
if (!existingPort.DataType.Equals(PortDataTypes.TypeIdValueDouble))
{
RemovePort(existingPort);
new NodeSystemLib2.FormatValue.OutputPortValueDouble(this, portName);
}
existingOutputs.Remove(existingPort);
}
else
{
new NodeSystemLib2.FormatValue.OutputPortValueDouble(this, portName);
}
break;
default:
Parent.Context.Notify(new GraphNotification(this, GraphNotification.NotificationType.Error, $"Python: unknown port format '{portType}' for output port named {portName}"));
break;
}
} catch (Exception e) {
Parent.Context.Notify(new GraphNotification(this, GraphNotification.NotificationType.Error, $"Python: error while processing output port: {portName}: {e.Message}"));
}
}
}
}
}