async def test_import_xml_data_type_definition(opc):
nodes = await opc.opc.import_xml("tests/substructs.xml")
await opc.opc.load_data_type_definitions()
assert hasattr(ua, "MySubstruct")
assert hasattr(ua, "MyStruct")
datatype = opc.opc.get_node(ua.MySubstruct.data_type)
sdef = await datatype.read_data_type_definition()
assert isinstance(sdef, ua.StructureDefinition)
s = ua.MyStruct()
s.toto = 0.1
ss = ua.MySubstruct()
assert ss.titi == 0
assert isinstance(ss.structs, list)
ss.titi = 1
ss.structs.append(s)
ss.structs.append(s)
var = await opc.opc.nodes.objects.add_variable(
2, "MySubStructVar", ss, datatype=ua.MySubstruct.data_type)
s2 = await var.read_value()
assert s2.structs[1].toto == ss.structs[1].toto == 0.1
await opc.opc.delete_nodes([datatype, var])
n = []
[n.append(opc.opc.get_node(node)) for node in nodes]
await opc.opc.delete_nodes(n)
def test_structs(modeler, mgr):
mgr.new_model()
urns = modeler.get_current_server().get_namespace_array()
ns_node = mgr.server_mgr.get_node(ua.ObjectIds.Server_NamespaceArray)
urns = ns_node.read_value()
urns.append("urn://modeller/testing")
ns_node.write_value(urns)
path = "test_save_structs.xml"
struct_node = mgr.server_mgr.get_node(ua.ObjectIds.Structure)
modeler.tree_ui.expand_to_node(struct_node)
mystruct = mgr.add_data_type(1, "MyStruct")
var1 = mystruct.add_variable(1,
"MyFloat",
0.1,
varianttype=ua.VariantType.Float)
var2 = mystruct.add_variable(1,
"MyBytes",
b'lkjlk',
varianttype=ua.VariantType.ByteString)
mgr.save_xml(path)
assert len(
mgr.new_nodes
) == 4 # one struct + TypeDictionary node + namespace and struct node under typedict
# FIXME: test for presence of nodes under typedict for every new struct
opc_binary = mgr.server_mgr.get_node(
ua.ObjectIds.OPCBinarySchema_TypeSystem)
typedict = opc_binary.get_child("1:TypeDictionary")
xml = typedict.read_value()
assert b"MyFloat" in xml
assert b"MyStruct" in xml
mgr.save_xml(path)
mgr.close_model()
mgr.open_xml(path)
opc_binary = mgr.server_mgr.get_node(
ua.ObjectIds.OPCBinarySchema_TypeSystem)
typedict = opc_binary.get_child("1:TypeDictionary")
xml = typedict.read_value()
assert b"MyFloat" in xml
assert b"MyStruct" in xml
struct_node = mgr.server_mgr.get_node(ua.ObjectIds.Structure)
struct_node.get_child("1:MyStruct")
mgr.server_mgr.load_type_definitions()
st = ua.MyStruct()
assert hasattr(st, "MyFloat")
st.MyBytes = b"klk"
def test_structs_2(modeler, mgr):
mgr.new_model()
urns = modeler.get_current_server().get_namespace_array()
ns_node = mgr.server_mgr.get_node(ua.ObjectIds.Server_NamespaceArray)
urns = ns_node.read_value()
urns.append("urn://modeller/testing")
ns_node.write_value(urns)
path = "test_save_structs_2.xml"
struct_node = mgr.server_mgr.get_node(ua.ObjectIds.Structure)
modeler.tree_ui.expand_to_node(struct_node)
mystruct = mgr.add_data_type(1, "MyStruct")
QApplication.processEvents()
modeler.tree_ui.expand_to_node("MyStruct")
var_node = mgr.add_variable(1, "myvar", 0.1)
mgr.save_xml(path)
mgr.close_model()
mgr.open_xml(path)
struct_node = mgr.server_mgr.get_node(ua.ObjectIds.Structure)
mystruct_node = struct_node.get_child("1:MyStruct")
var2_node = mystruct_node.add_variable(1, "myvar2", 0.2)
# following code break...why??!?!??!
#QApplication.processEvents()
#modeler.tree_ui.expand_to_node("MyStruct")
#var2_node = mgr.add_variable(1, "myvar2", 0.2)
mgr.save_xml(path)
mgr.close_model()
mgr.open_xml(path)
struct_node = mgr.server_mgr.get_node(ua.ObjectIds.Structure)
mystruct = struct_node.get_child("1:MyStruct")
assert len(mystruct.get_children()) == 2
mgr.server_mgr.load_type_definitions()
st = ua.MyStruct()
assert hasattr(st, "myvar")
assert hasattr(st, "myvar2")
mgr.close_model()
async def main():
# setup our server
server = Server()
await server.init()
server.set_endpoint('opc.tcp://0.0.0.0:4840/freeopcua/server/')
# setup our own namespace, not really necessary but should as spec
uri = 'http://examples.freeopcua.github.io'
idx = await server.register_namespace(uri)
snode1, _ = await new_struct(server, idx, "MyStruct", [
new_struct_field("MyBool", ua.VariantType.Boolean),
new_struct_field("MyUInt32List", ua.VariantType.UInt32, array=True),
])
snode2, _ = await new_struct(server, idx, "MyOptionalStruct", [
new_struct_field("MyBool", ua.VariantType.Boolean),
new_struct_field("MyUInt32List", ua.VariantType.UInt32, array=True),
new_struct_field("MyInt64", ua.VariantType.Int64, optional=True),
])
enode = await new_enum(server, idx, "MyEnum", [
"titi",
"toto",
"tutu",
])
custom_objs = await server.load_data_type_definitions()
print("Custom objects on server")
for name, obj in custom_objs.items():
print(" ", obj)
valnode = await server.nodes.objects.add_variable(idx, "my_enum", ua.MyEnum.toto)
await server.nodes.objects.add_variable(idx, "my_struct", ua.Variant(ua.MyStruct(), ua.VariantType.ExtensionObject))
my_struct_optional = ua.MyOptionalStruct()
my_struct_optional.MyUInt32List = [45, 67]
my_struct_optional.MyInt64 = -67
await server.nodes.objects.add_variable(idx, "my_struct_optional", ua.Variant(my_struct_optional, ua.VariantType.ExtensionObject))
await server.export_xml([server.nodes.objects, server.nodes.root, snode1, snode2, enode, valnode], "structs_and_enum.xml")
async with server:
while True:
await asyncio.sleep(1)
async def main():
# setup our server
server = Server()
await server.init()
server.set_endpoint('opc.tcp://0.0.0.0:4840/freeopcua/server/')
# setup our own namespace, not really necessary but should as spec
uri = 'http://examples.freeopcua.github.io'
idx = await server.register_namespace(uri)
await new_struct(server, idx, "MyStruct", [
new_struct_field("MyBool", ua.VariantType.Boolean),
new_struct_field("MyUInt32", ua.VariantType.UInt32),
])
await new_struct(server, idx, "MyOptionalStruct", [
new_struct_field("MyBool", ua.VariantType.Boolean),
new_struct_field("MyUInt32", ua.VariantType.UInt32),
new_struct_field("MyInt64", ua.VariantType.Int64, optional=True),
])
await new_enum(server, idx, "MyEnum", [
"titi",
"toto",
"tutu",
])
await server.load_data_type_definitions()
await server.nodes.objects.add_variable(idx, "my_enum", ua.MyEnum.toto)
await server.nodes.objects.add_variable(
idx, "my_struct",
ua.Variant(ua.MyStruct(), ua.VariantType.ExtensionObject))
my_struct_optional = ua.MyOptionalStruct()
my_struct_optional.MyUInt32 = 45
my_struct_optional.MyInt64 = -67
await server.nodes.objects.add_variable(
idx, "my_struct_optional",
ua.Variant(my_struct_optional, ua.VariantType.ExtensionObject))
async with server:
while True:
await asyncio.sleep(1)
