def _show_structs(self):
base_struct = self.server_mgr.get_node(ua.ObjectIds.Structure)
opc_binary = self.server_mgr.get_node(
ua.ObjectIds.OPCBinarySchema_TypeSystem)
opc_schema = self.server_mgr.get_node(ua.ObjectIds.OpcUa_BinarySchema)
for node in opc_binary.get_children():
if node == opc_schema:
continue # This is standard namespace structures
try:
ns = node.get_child("0:NamespaceUri").read_value()
ar = self.server_mgr.get_namespace_array()
idx = ar.index(ns)
except ua.UaError:
idx = 1
xml = node.read_value()
if not xml:
return
xml = xml.decode("utf-8")
generator = StructGenerator()
generator.make_model_from_string(xml)
for el in generator.model:
# we only care about structs, ignoring enums
if isinstance(el, Struct):
self._add_design_node(base_struct, idx, el)
def test_custom_structs_array(tmpdir):
c = StructGenerator()
c.make_model_from_file(EXAMPLE_BSD_PATH)
ns = {}
output_path = tmpdir.join("test_custom_structs_array.py").strpath
c.save_to_file(output_path)
with open(output_path) as s:
exec(s.read(), ns)
# test with default values
v = ns["ArrayValueDataType"]()
data = struct_to_binary(v)
v2 = struct_from_binary(ns["ArrayValueDataType"], ua.utils.Buffer(data))
# set some values
v = ns["ArrayValueDataType"]()
v.SbyteValue = [1]
v.ByteValue = [2]
v.Int16Value = [3]
v.UInt16Value = [4]
v.Int32Value = [5]
v.UInt32Value = [6]
v.Int64Value = [7]
v.UInt64Value = [8]
v.FloatValue = [9.0]
v.DoubleValue = [10.0]
v.StringValue = ["elleven"]
v.DateTimeValue = [datetime.utcnow()]
# self.GuidValue = uuid.uudib"14"
v.ByteStringValue = [b"fifteen", b"sixteen"]
v.XmlElementValue = [ua.XmlElement("<toto>titi</toto>")]
v.NodeIdValue = [ua.NodeId.from_string("ns=4;i=9999"), ua.NodeId.from_string("i=6")]
data = struct_to_binary(v)
v2 = struct_from_binary(ns["ArrayValueDataType"], ua.utils.Buffer(data))
assert v.NodeIdValue == v2.NodeIdValue
def test_custom_structs(tmpdir):
c = StructGenerator()
c.make_model_from_file(EXAMPLE_BSD_PATH)
output_path = tmpdir.join("test_custom_structs.py").strpath
c.save_to_file(output_path)
ns = {}
with open(output_path) as s:
exec(s.read(), ns)
# test with default values
v = ns["ScalarValueDataType"]()
data = struct_to_binary(v)
v2 = struct_from_binary(ns["ScalarValueDataType"], ua.utils.Buffer(data))
# set some values
v = ns["ScalarValueDataType"]()
v.SbyteValue = 1
v.ByteValue = 2
v.Int16Value = 3
v.UInt16Value = 4
v.Int32Value = 5
v.UInt32Value = 6
v.Int64Value = 7
v.UInt64Value = 8
v.FloatValue = 9.0
v.DoubleValue = 10.0
v.StringValue = "elleven"
v.DateTimeValue = datetime.utcnow()
# self.GuidValue = uuid.uudib"14"
v.ByteStringValue = b"fifteen"
v.XmlElementValue = ua.XmlElement("<toto>titi</toto>")
v.NodeIdValue = ua.NodeId.from_string("ns=4;i=9999")
# self.ExpandedNodeIdValue =
# self.QualifiedNameValue =
# self.LocalizedTextValue =
# self.StatusCodeValue =
# self.VariantValue =
# self.EnumerationValue =
# self.StructureValue =
# self.Number =
# self.Integer =
# self.UInteger =
data = struct_to_binary(v)
v2 = struct_from_binary(ns["ScalarValueDataType"], ua.utils.Buffer(data))
assert v.NodeIdValue == v2.NodeIdValue