async def test_custom_struct_with_optional_fields(opc):
idx = 4
await new_struct(opc.opc, 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 opc.opc.load_data_type_definitions()
my_struct_optional = ua.MyOptionalStruct()
my_struct_optional.MyUInt32 = 45
my_struct_optional.MyInt64 = -67
var = await opc.opc.nodes.objects.add_variable(idx, "my_struct_optional", ua.Variant(my_struct_optional, ua.VariantType.ExtensionObject))
val = await var.read_value()
assert val.MyUInt32 == 45
assert val.MyInt64 == -67
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)