def _create_method(parent, nodeid, qname, callback, inputs, outputs):
node = ua.AddNodesItem()
node.RequestedNewNodeId = nodeid
node.BrowseName = qname
node.NodeClass = ua.NodeClass.Method
node.ParentNodeId = parent.nodeid
node.ReferenceTypeId = ua.NodeId.from_string("i=47")
#node.TypeDefinition = ua.NodeId(ua.ObjectIds.BaseObjectType)
attrs = ua.MethodAttributes()
attrs.Description = ua.LocalizedText(qname.Name)
attrs.DisplayName = ua.LocalizedText(qname.Name)
attrs.WriteMask = ua.OpenFileMode.Read
attrs.UserWriteMask = ua.OpenFileMode.Read
attrs.Executable = True
attrs.UserExecutable = True
node.NodeAttributes = attrs
results = parent.server.add_nodes([node])
results[0].StatusCode.check()
method = Node(parent.server, nodeid)
if inputs:
create_property(method, ua.generate_nodeid(qname.NamespaceIndex), ua.QualifiedName("InputArguments", 0), [_vtype_to_argument(vtype) for vtype in inputs])
if outputs:
create_property(method, ua.generate_nodeid(qname.NamespaceIndex), ua.QualifiedName("OutputArguments", 0), [_vtype_to_argument(vtype) for vtype in outputs])
parent.server.add_method_callback(method.nodeid, callback)
return nodeid
def _create_method(parent, nodeid, qname, callback, inputs, outputs):
node = ua.AddNodesItem()
node.RequestedNewNodeId = nodeid
node.BrowseName = qname
node.NodeClass = ua.NodeClass.Method
node.ParentNodeId = parent.nodeid
node.ReferenceTypeId = ua.NodeId.from_string("i=47")
#node.TypeDefinition = ua.NodeId(ua.ObjectIds.BaseObjectType)
attrs = ua.MethodAttributes()
attrs.Description = ua.LocalizedText(qname.Name)
attrs.DisplayName = ua.LocalizedText(qname.Name)
attrs.WriteMask = ua.OpenFileMode.Read
attrs.UserWriteMask = ua.OpenFileMode.Read
attrs.Executable = True
attrs.UserExecutable = True
node.NodeAttributes = attrs
results = parent.server.add_nodes([node])
results[0].StatusCode.check()
method = Node(parent.server, nodeid)
if inputs:
create_property(method, ua.generate_nodeid(qname.NamespaceIndex),
ua.QualifiedName("InputArguments", 0),
[_vtype_to_argument(vtype) for vtype in inputs])
if outputs:
create_property(method, ua.generate_nodeid(qname.NamespaceIndex),
ua.QualifiedName("OutputArguments", 0),
[_vtype_to_argument(vtype) for vtype in outputs])
parent.server.add_method_callback(method.nodeid, callback)
return nodeid
def _parse_add_args(*args):
if isinstance(args[0], ua.NodeId):
return args[0], args[1]
elif isinstance(args[0], str) or isinstance(args[0], unicode):
return ua.NodeId.from_string(args[0]), ua.QualifiedName.from_string(args[1])
elif isinstance(args[0], int):
return ua.generate_nodeid(args[0]), ua.QualifiedName(args[1], args[0])
else:
raise TypeError("Add methods takes a nodeid and a qualifiedname as argument, received %s" % args)
def _parse_add_args(*args):
if isinstance(args[0], ua.NodeId):
return args[0], args[1]
elif isinstance(args[0], str):
return ua.NodeId.from_string(args[0]), ua.QualifiedName.from_string(args[1])
elif isinstance(args[0], int):
return ua.generate_nodeid(args[0]), ua.QualifiedName(args[1], args[0])
else:
raise TypeError("Add methods takes a nodeid and a qualifiedname as argument, received %s" % args)
def _instanciate_node(server, parentid, rdesc, idx):
"""
Instanciate a new node under 'parent' using a type
"""
print("Instanciating: node %s in %s" % (rdesc, parentid))
addnode = ua.AddNodesItem()
addnode.RequestedNewNodeId = ua.generate_nodeid(idx)
addnode.BrowseName = rdesc.BrowseName
addnode.NodeClass = rdesc.NodeClass
addnode.ParentNodeId = parentid
addnode.ReferenceTypeId = ua.TwoByteNodeId(ua.ObjectIds.HasComponent)
addnode.TypeDefinition = rdesc.TypeDefinition
print("ADDNODE", addnode)
node_type = Node(server, rdesc.NodeId)
if rdesc.NodeClass in (ua.NodeClass.Object, ua.NodeClass.ObjectType):
print(node_type, " is object")
_read_and_copy_attrs(node_type, ua.ObjectAttributes(), addnode)
#_add_object_attrs(addnode, rdesc, node_type)
elif rdesc.NodeClass in (ua.NodeClass.Variable, ua.NodeClass.VariableType):
print(node_type, " is variable")
_read_and_copy_attrs(node_type, ua.VariableAttributes(), addnode)
#_add_variable_attrs(addnode, rdesc, node_type)
else:
print("Node class not supported: ", rdesc.NodeClass)
print("ADDNODE FINAL ", addnode)
server.add_nodes([addnode])
refs = []
ref = ua.AddReferencesItem()
ref.IsForward = True
ref.ReferenceTypeId = addnode.ReferenceTypeId
ref.SourceNodeId = parentid
ref.TargetNodeClass = addnode.NodeClass
ref.TargetNodeId = addnode.RequestedNewNodeId
refs.append(ref)
server.add_references(refs)
descs = node_type.get_children_descriptions(
includesubtypes=False) #FIXME: should be false
print("node is", rdesc.NodeId, node_type, node_type.get_children())
print("Children are: ", descs)
for rdesc in descs:
_instanciate_node(server, addnode.RequestedNewNodeId, rdesc, idx)
return Node(server, addnode.RequestedNewNodeId)
def _instanciate_node(server, parentid, rdesc, idx):
"""
Instanciate a new node under 'parent' using a type
"""
print("Instanciating: node %s in %s" % (rdesc, parentid))
addnode = ua.AddNodesItem()
addnode.RequestedNewNodeId = ua.generate_nodeid(idx)
addnode.BrowseName = rdesc.BrowseName
addnode.NodeClass = rdesc.NodeClass
addnode.ParentNodeId = parentid
addnode.ReferenceTypeId = ua.TwoByteNodeId(ua.ObjectIds.HasComponent)
addnode.TypeDefinition = rdesc.TypeDefinition
print("ADDNODE", addnode)
node_type = Node(server, rdesc.NodeId)
if rdesc.NodeClass in (ua.NodeClass.Object, ua.NodeClass.ObjectType):
print(node_type, " is object")
_read_and_copy_attrs(node_type, ua.ObjectAttributes(), addnode)
#_add_object_attrs(addnode, rdesc, node_type)
elif rdesc.NodeClass in (ua.NodeClass.Variable, ua.NodeClass.VariableType):
print(node_type, " is variable")
_read_and_copy_attrs(node_type, ua.VariableAttributes(), addnode)
#_add_variable_attrs(addnode, rdesc, node_type)
else:
print("Node class not supported: ", rdesc.NodeClass)
print("ADDNODE FINAL ", addnode)
server.add_nodes([addnode])
refs = []
ref = ua.AddReferencesItem()
ref.IsForward = True
ref.ReferenceTypeId = addnode.ReferenceTypeId
ref.SourceNodeId = parentid
ref.TargetNodeClass = addnode.NodeClass
ref.TargetNodeId = addnode.RequestedNewNodeId
refs.append(ref)
server.add_references(refs)
descs = node_type.get_children_descriptions(includesubtypes=False) # FIXME: should be false
print("node is", rdesc.NodeId, node_type, node_type.get_children())
print("Children are: ", descs)
for rdesc in descs:
_instanciate_node(server, addnode.RequestedNewNodeId, rdesc, idx)
return Node(server, addnode.RequestedNewNodeId)
