def test_instantiate_1(self):
# Create device type
dev_t = self.opc.nodes.base_object_type.add_object_type(0, "MyDevice")
v_t = dev_t.add_variable(0, "sensor", 1.0)
p_t = dev_t.add_property(0, "sensor_id", "0340")
ctrl_t = dev_t.add_object(0, "controller")
prop_t = ctrl_t.add_property(0, "state", "Running")
# Create device sutype
devd_t = dev_t.add_object_type(0, "MyDeviceDervived")
v_t = devd_t.add_variable(0, "childparam", 1.0)
p_t = devd_t.add_property(0, "sensorx_id", "0340")
# instanciate device
nodes = instantiate(self.opc.nodes.objects, dev_t, bname="2:Device0001")
mydevice = nodes[0]
self.assertEqual(mydevice.get_node_class(), ua.NodeClass.Object)
self.assertEqual(mydevice.get_type_definition(), dev_t.nodeid)
obj = mydevice.get_child(["0:controller"])
prop = mydevice.get_child(["0:controller", "0:state"])
self.assertEqual(prop.get_type_definition().Identifier, ua.ObjectIds.PropertyType)
self.assertEqual(prop.get_value(), "Running")
self.assertNotEqual(prop.nodeid, prop_t.nodeid)
# instanciate device subtype
nodes = instantiate(self.opc.nodes.objects, devd_t, bname="2:Device0002")
mydevicederived = nodes[0]
prop1 = mydevicederived.get_child(["0:sensorx_id"])
var1 = mydevicederived.get_child(["0:childparam"])
var_parent = mydevicederived.get_child(["0:sensor"])
prop_parent = mydevicederived.get_child(["0:sensor_id"])
def test_instantiate_1(self):
# Create device type
dev_t = self.opc.nodes.base_object_type.add_object_type(0, "MyDevice")
v_t = dev_t.add_variable(0, "sensor", 1.0)
p_t = dev_t.add_property(0, "sensor_id", "0340")
ctrl_t = dev_t.add_object(0, "controller")
prop_t = ctrl_t.add_property(0, "state", "Running")
# Create device sutype
devd_t = dev_t.add_object_type(0, "MyDeviceDervived")
v_t = devd_t.add_variable(0, "childparam", 1.0)
p_t = devd_t.add_property(0, "sensorx_id", "0340")
# instanciate device
nodes = instantiate(self.opc.nodes.objects, dev_t, bname="2:Device0001")
mydevice = nodes[0]
self.assertEqual(mydevice.get_node_class(), ua.NodeClass.Object)
self.assertEqual(mydevice.get_type_definition(), dev_t.nodeid)
obj = mydevice.get_child(["0:controller"])
prop = mydevice.get_child(["0:controller", "0:state"])
self.assertEqual(prop.get_type_definition().Identifier, ua.ObjectIds.PropertyType)
self.assertEqual(prop.get_value(), "Running")
self.assertNotEqual(prop.nodeid, prop_t.nodeid)
# instanciate device subtype
nodes = instantiate(self.opc.nodes.objects, devd_t, bname="2:Device0002")
mydevicederived = nodes[0]
prop1 = mydevicederived.get_child(["0:sensorx_id"])
var1 = mydevicederived.get_child(["0:childparam"])
var_parent = mydevicederived.get_child(["0:sensor"])
prop_parent = mydevicederived.get_child(["0:sensor_id"])
def test_instantiate_string_nodeid(self):
# Create device type
dev_t = self.opc.nodes.base_object_type.add_object_type(0, "MyDevice2")
v_t = dev_t.add_variable(0, "sensor", 1.0)
v_t.set_modelling_rule(True)
p_t = dev_t.add_property(0, "sensor_id", "0340")
p_t.set_modelling_rule(True)
ctrl_t = dev_t.add_object(0, "controller")
ctrl_t.set_modelling_rule(True)
prop_t = ctrl_t.add_property(0, "state", "Running")
prop_t.set_modelling_rule(True)
# instanciate device
nodes = instantiate(self.opc.nodes.objects, dev_t, nodeid=ua.NodeId("InstDevice", 2, ua.NodeIdType.String), bname="2:InstDevice")
mydevice = nodes[0]
self.assertEqual(mydevice.get_node_class(), ua.NodeClass.Object)
self.assertEqual(mydevice.get_type_definition(), dev_t.nodeid)
obj = mydevice.get_child(["0:controller"])
obj_nodeid_ident = obj.nodeid.Identifier
prop = mydevice.get_child(["0:controller", "0:state"])
self.assertEqual(obj_nodeid_ident, "InstDevice.controller")
self.assertEqual(prop.get_type_definition().Identifier, ua.ObjectIds.PropertyType)
self.assertEqual(prop.get_value(), "Running")
self.assertNotEqual(prop.nodeid, prop_t.nodeid)
def test_instantiate_1(self):
dev_t = self.opc.nodes.base_data_type.add_object_type(0, "MyDevice")
v_t = dev_t.add_variable(0, "sensor", 1.0)
p_t = dev_t.add_property(0, "sensor_id", "0340")
ctrl_t = dev_t.add_object(0, "controller")
prop_t = ctrl_t.add_property(0, "state", "Running")
mydevice = instantiate(self.opc.nodes.objects, dev_t, bname="2:Device0001")
self.assertEqual(mydevice.get_type_definition(), dev_t.nodeid)
obj = mydevice.get_child(["0:controller"])
prop = mydevice.get_child(["0:controller", "0:state"])
self.assertEqual(prop.get_type_definition().Identifier, ua.ObjectIds.PropertyType)
self.assertEqual(prop.get_value(), "Running")
self.assertNotEqual(prop.nodeid, prop_t.nodeid)
def test_instantiate_1(self):
dev_t = self.opc.nodes.base_data_type.add_object_type(0, "MyDevice")
v_t = dev_t.add_variable(0, "sensor", 1.0)
p_t = dev_t.add_property(0, "sensor_id", "0340")
ctrl_t = dev_t.add_object(0, "controller")
prop_t = ctrl_t.add_property(0, "state", "Running")
mydevice = instantiate(self.opc.nodes.objects,
dev_t,
bname="2:Device0001")
self.assertEqual(mydevice.get_type_definition(), dev_t.nodeid)
obj = mydevice.get_child(["0:controller"])
prop = mydevice.get_child(["0:controller", "0:state"])
self.assertEqual(prop.get_type_definition().Identifier,
ua.ObjectIds.PropertyType)
self.assertEqual(prop.get_value(), "Running")
self.assertNotEqual(prop.nodeid, prop_t.nodeid)
server = Server()
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 = server.register_namespace(uri)
# get Objects node, this is where we should put our nodes
objects = server.get_objects_node()
# populating our address space
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myvar.set_writable() # Set MyVariable to be writable by clients
dev = server.nodes.base_object_type.add_object_type(0, "MyDevice")
dev.add_variable(0, "sensor1", 1.0)
mydevice = instantiate(server.nodes.objects, dev, bname="2:Device0001")
node_list = [dev, mydevice[0], myobj, myvar]
# starting!
server.start()
exporter = XmlExporter(server)
exporter.build_etree(node_list, ['http://myua.org/test/'])
exporter.write_xml('ua-export.xml')
server.stop()
# setup our server
server = Server()
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 = server.register_namespace(uri)
# create our custom object type
dev = server.nodes.base_object_type.add_object_type(0, "MyDevice")
dev.add_variable(0, "sensor1", 1.0)
dev.add_property(0, "device_id", "0340")
ctrl = dev.add_object(0, "controller")
ctrl.add_property(0, "state", "Idle")
# instantiate our new object type
mydevice = instantiate(server.nodes.objects, dev, bname="2:Device0001")
#mydevice = server.nodes.objects.add_object(2, "Device0001", objecttype=dev) # specificying objecttype to add_object also instanciate a node type
mydevice_var = mydevice.get_child(["0:controller", "0:state"]) # get proxy to our device state variable
# starting!
server.start()
try:
mydevice_var.set_value("Running")
embed()
finally:
# close connection, remove subcsriptions, etc
server.stop()
