def test_get_node_by_ns(self):
def get_ns_of_nodes(nodes):
ns_list = set()
for node in nodes:
ns_list.add(node.nodeid.NamespaceIndex)
return ns_list
# incase other testss created nodes in unregistered namespace
_idx_d = self.opc.register_namespace('dummy1')
_idx_d = self.opc.register_namespace('dummy2')
_idx_d = self.opc.register_namespace('dummy3')
# create the test namespaces and vars
idx_a = self.opc.register_namespace('a')
idx_b = self.opc.register_namespace('b')
idx_c = self.opc.register_namespace('c')
o = self.opc.get_objects_node()
_myvar2 = o.add_variable(idx_a, "MyBoolVar2", True)
_myvar3 = o.add_variable(idx_b, "MyBoolVar3", True)
_myvar4 = o.add_variable(idx_c, "MyBoolVar4", True)
# the tests
nodes = ua_utils.get_nodes_of_namespace(
self.opc, namespaces=[idx_a, idx_b, idx_c])
self.assertEqual(len(nodes), 3)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_a, idx_b, idx_c]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=[idx_a])
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_a]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=[idx_b])
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_b]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=['a'])
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_a]))
nodes = ua_utils.get_nodes_of_namespace(self.opc,
namespaces=['a', 'c'])
self.assertEqual(len(nodes), 2)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_a, idx_c]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces='b')
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_b]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=idx_b)
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_b]))
self.assertRaises(ValueError,
ua_utils.get_nodes_of_namespace,
self.opc,
namespaces='non_existing_ns')
def test_get_node_by_ns(self):
def get_ns_of_nodes(nodes):
ns_list = set()
for node in nodes:
ns_list.add(node.nodeid.NamespaceIndex)
return ns_list
# incase other testss created nodes in unregistered namespace
_idx_d = self.opc.register_namespace('dummy1')
_idx_d = self.opc.register_namespace('dummy2')
_idx_d = self.opc.register_namespace('dummy3')
# create the test namespaces and vars
idx_a = self.opc.register_namespace('a')
idx_b = self.opc.register_namespace('b')
idx_c = self.opc.register_namespace('c')
o = self.opc.get_objects_node()
_myvar2 = o.add_variable(idx_a, "MyBoolVar2", True)
_myvar3 = o.add_variable(idx_b, "MyBoolVar3", True)
_myvar4 = o.add_variable(idx_c, "MyBoolVar4", True)
# the tests
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=[idx_a, idx_b, idx_c])
self.assertEqual(len(nodes), 3)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_a, idx_b, idx_c]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=[idx_a])
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_a]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=[idx_b])
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_b]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=['a'])
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_a]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=['a', 'c'])
self.assertEqual(len(nodes), 2)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_a, idx_c]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces='b')
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_b]))
nodes = ua_utils.get_nodes_of_namespace(self.opc, namespaces=idx_b)
self.assertEqual(len(nodes), 1)
self.assertEqual(get_ns_of_nodes(nodes), set([idx_b]))
self.assertRaises(ValueError, ua_utils.get_nodes_of_namespace, self.opc, namespaces='non_existing_ns')
def export_xml_by_ns(self, path, namespaces=None):
"""
Export nodes of one or more namespaces to an XML file.
Namespaces used by nodes are always exported for consistency.
Args:
server: opc ua server to use
path: name of the xml file to write
namespaces: list of string uris or int indexes of the namespace to export, if not provide all ns are used except 0
Returns:
"""
if namespaces is None:
namespaces = []
nodes = get_nodes_of_namespace(self, namespaces)
self.export_xml(nodes, path)
def export_xml_by_ns(self, path, namespaces=None):
"""
Export nodes of one or more namespaces to an XML file.
Namespaces used by nodes are always exported for consistency.
Args:
server: opc ua server to use
path: name of the xml file to write
namespaces: list of string uris or int indexes of the namespace to export, if not provide all ns are used except 0
Returns:
"""
if namespaces is None:
namespaces = []
nodes = get_nodes_of_namespace(self, namespaces)
self.export_xml(nodes, path)
