IfcOpenShell/src/ifcsverchok/nodes/ifc/get_attribute.py

import bpy
import ifcopenshell
import ifcopenshell.util.element
import ifcsverchok.helper
from bpy.props import StringProperty
from sverchok.node_tree import SverchCustomTreeNode
from sverchok.data_structure import updateNode


class SvIfcGetAttribute(bpy.types.Node, SverchCustomTreeNode, ifcsverchok.helper.SvIfcCore):
    bl_idname = "SvIfcGetAttribute"
    bl_label = "IFC Get Attribute"
    entity: StringProperty(name="entity", update=updateNode)
    attribute_name: StringProperty(name="attribute_name", update=updateNode)

    def sv_init(self, context):
        self.inputs.new("SvStringsSocket", "entity").prop_name = "entity"
        self.inputs.new("SvStringsSocket", "attribute_name").prop_name = "attribute_name"
        self.outputs.new("SvStringsSocket", "value")

    def process(self):
        self.sv_input_names = ["entity", "attribute_name"]
        self.value_out = []
        super().process()
        self.outputs["value"].sv_set(self.value_out)

    def process_ifc(self, entity, attribute_name):
        try:
            if attribute_name.isnumeric():
                self.value_out.append(entity[int(attribute_name)])
            else:
                self.value_out.append(entity.get_info()[attribute_name])
        except:
            pass


def register():
    bpy.utils.register_class(SvIfcGetAttribute)


def unregister():
    bpy.utils.unregister_class(SvIfcGetAttribute)