def _create_custom_type(self, idx, name, basetype, properties, variables,
methods):
if isinstance(basetype, Node):
base_t = basetype
elif isinstance(basetype, ua.NodeId):
base_t = Node(self.iserver.isession, basetype)
else:
base_t = Node(self.iserver.isession, ua.NodeId(basetype))
custom_t = base_t.add_object_type(idx, name)
for prop in properties:
datatype = None
if len(prop) > 2:
datatype = prop[2]
custom_t.add_property(idx,
prop[0],
ua.get_default_value(prop[1]),
varianttype=prop[1],
datatype=datatype)
for variable in variables:
datatype = None
if len(variable) > 2:
datatype = variable[2]
custom_t.add_variable(idx,
variable[0],
ua.get_default_value(variable[1]),
varianttype=variable[1],
datatype=datatype)
for method in methods:
custom_t.add_method(idx, method[0], method[1], method[2],
method[3])
return custom_t
def get_default_value(uatype):
if isinstance(uatype, ua.VariantType):
return ua.get_default_values(uatype)
elif hasattr(ua.VariantType, uatype):
return ua.get_default_value(getattr(ua.VariantType, uatype))
else:
return getattr(ua, uatype)()
def handle_write_source(self, incoming, value, source_time):
"Receive a value change from an expression and update the server"
#self.logger.debug(
# "'Write source' event to %s. value: %s at %s",
# incoming.key,
# value,
# source_time,
#)
nodeid = self.get_nodeid(incoming)
incoming, varnode = self.get_source(nodeid)
varianttype = self.get_varianttype(incoming)
# Check if datatype is compatible with varianttype
if isinstance(varianttype, ua.VariantType):
if (varianttype == ua.VariantType.String) and (isinstance(
value, str) or value is None):
pass # string can be None or str
elif not isinstance(value, type(
ua.get_default_value(varianttype))):
self.logger.error(
"%s: Value %s is not compatible with datatype %r",
nodeid,
incoming.value_as_string,
varianttype,
)
varianttype = None
datavalue = self.create_datavalue(value, varianttype,
ua.StatusCodes.Good, source_time)
varnode.set_value(datavalue)
def get_default_value(uatype):
if isinstance(uatype, ua.VariantType):
return ua.get_default_values(uatype)
elif hasattr(ua.VariantType, uatype):
return ua.get_default_value(getattr(ua.VariantType, uatype))
else:
return getattr(ua, uatype)()
def create_custom_data_type(self,
idx,
name,
basetype=ua.ObjectIds.BaseDataType,
properties=None,
description=None):
if properties is None:
properties = []
if isinstance(basetype, Node):
base_t = basetype
elif isinstance(basetype, ua.NodeId):
base_t = Node(self.iserver.isession, basetype)
else:
base_t = Node(self.iserver.isession, ua.NodeId(basetype))
custom_t = base_t.add_data_type(idx, name, description)
for prop in properties:
datatype = None
if len(prop) > 2:
datatype = prop[2]
custom_t.add_property(idx,
prop[0],
ua.get_default_value(prop[1]),
varianttype=prop[1],
datatype=datatype)
return custom_t
def _create_custom_type(self, idx, name, basetype, properties, variables, methods):
if isinstance(basetype, Node):
base_t = basetype
elif isinstance(basetype, ua.NodeId):
base_t = Node(self.iserver.isession, basetype)
else:
base_t = Node(self.iserver.isession, ua.NodeId(basetype))
custom_t = base_t.add_object_type(idx, name)
for prop in properties:
datatype = None
if len(prop) > 2:
datatype = prop[2]
custom_t.add_property(idx, prop[0], ua.get_default_value(prop[1]), varianttype=prop[1], datatype=datatype)
for variable in variables:
datatype = None
if len(variable) > 2:
datatype = variable[2]
custom_t.add_variable(idx, variable[0], ua.get_default_value(variable[1]), varianttype=variable[1], datatype=datatype)
for method in methods:
custom_t.add_method(idx, method[0], method[1], method[2], method[3])
return custom_t
