class Event(object):
"""
Create an event based on an event type. Per default is BaseEventType used.
arguments are:
server: The InternalSession object to use for query and event triggering
source: The emiting source for the node, either an objectId, NodeId or a Node
etype: The event type, either an objectId, a NodeId or a Node object
"""
def __init__(self, isession, etype=ObjectIds.BaseEventType, source=ObjectIds.Server):
self.isession = isession
if isinstance(etype, Node):
self.node = etype
elif isinstance(etype, ua.NodeId):
self.node = Node(self.isession, etype)
else:
self.node = Node(self.isession, ua.NodeId(etype))
self.set_members_from_node(self.node)
if isinstance(source, Node):
self.SourceNode = source.NodeId
elif isinstance(etype, ua.NodeId):
self.SourceNode = source.NodeId
else:
self.SourceNode = ua.NodeId(source)
# set some default values for attributes from BaseEventType, thus that all event must have
self.EventId = uuid.uuid4().bytes
self.EventType = self.node.nodeid
self.LocaleTime = datetime.now()
self.ReceiveTime = datetime.now()
self.Time = datetime.now()
self.Message = ua.LocalizedText()
self.Severity = ua.Variant(1, ua.VariantType.UInt16)
self.SourceName = "Server"
# og set some node attributed we also are expected to have
self.BrowseName = self.node.get_browse_name()
self.DisplayName = self.node.get_display_name()
self.NodeId = self.node.nodeid
self.NodeClass = self.node.get_node_class()
self.Description = self.node.get_description()
def __str__(self):
return "Event(Type:{}, Source:{}, Time:{}, Message: {})".format(self.EventType, self.SourceNode, self.Time, self.Message)
__repr__ = __str__
def trigger(self):
self.isession.subscription_service.trigger_event(self)
def set_members_from_node(self, node):
references = node.get_children_descriptions(refs=ua.ObjectIds.HasProperty)
for desc in references:
node = Node(self.isession, desc.NodeId)
setattr(self, desc.BrowseName.Name, node.get_value())
class Event(object):
"""
Create an event based on an event type. Per default is BaseEventType used.
arguments are:
server: The InternalSession object to use for query and event triggering
source: The emiting source for the node, either an objectId, NodeId or a Node
etype: The event type, either an objectId, a NodeId or a Node object
"""
def __init__(self, isession, etype=ua.ObjectIds.BaseEventType, source=ua.ObjectIds.Server):
self.isession = isession
if isinstance(etype, Node):
self.node = etype
elif isinstance(etype, ua.NodeId):
self.node = Node(self.isession, etype)
else:
self.node = Node(self.isession, ua.NodeId(etype))
self.set_members_from_node(self.node)
if isinstance(source, Node):
self.SourceNode = source.NodeId
elif isinstance(etype, ua.NodeId):
self.SourceNode = source.NodeId
else:
self.SourceNode = ua.NodeId(source)
# set some default values for attributes from BaseEventType, thus that all event must have
self.EventId = uuid.uuid4().bytes
self.EventType = self.node.nodeid
self.LocaleTime = datetime.now()
self.ReceiveTime = datetime.now()
self.Time = datetime.now()
self.Message = ua.LocalizedText()
self.Severity = ua.Variant(1, ua.VariantType.UInt16)
self.SourceName = "Server"
# og set some node attributed we also are expected to have
self.BrowseName = self.node.get_browse_name()
self.DisplayName = self.node.get_display_name()
self.NodeId = self.node.nodeid
self.NodeClass = self.node.get_node_class()
self.Description = self.node.get_description()
def __str__(self):
return "Event(Type:{}, Source:{}, Time:{}, Message: {})".format(self.EventType, self.SourceNode, self.Time, self.Message)
__repr__ = __str__
def trigger(self):
self.isession.subscription_service.trigger_event(self)
def set_members_from_node(self, node):
references = node.get_children_descriptions(refs=ua.ObjectIds.HasProperty)
for desc in references:
node = Node(self.isession, desc.NodeId)
setattr(self, desc.BrowseName.Name, node.get_value())
def __init__(self,
isession,
etype=None,
emitting_node=ua.ObjectIds.Server):
if not etype:
etype = event_objects.BaseEvent()
self.logger = logging.getLogger(__name__)
self.isession = isession
self.event = None
node = None
if isinstance(etype, event_objects.BaseEvent):
self.event = etype
elif isinstance(etype, Node):
node = etype
elif isinstance(etype, ua.NodeId):
node = Node(self.isession, etype)
else:
node = Node(self.isession, ua.NodeId(etype))
if node:
self.event = events.get_event_obj_from_type_node(node)
if isinstance(emitting_node, Node):
pass
elif isinstance(emitting_node, ua.NodeId):
emitting_node = Node(isession, emitting_node)
else:
emitting_node = Node(isession, ua.NodeId(emitting_node))
self.event.emitting_node = emitting_node.nodeid
if not self.event.SourceNode:
self.event.SourceNode = emitting_node.nodeid
self.event.SourceName = emitting_node.get_browse_name().Name
emitting_node.set_event_notifier([ua.EventNotifier.SubscribeToEvents])
refs = []
ref = ua.AddReferencesItem()
ref.IsForward = True
ref.ReferenceTypeId = ua.NodeId(ua.ObjectIds.GeneratesEvent)
ref.SourceNodeId = emitting_node.nodeid
ref.TargetNodeClass = ua.NodeClass.ObjectType
ref.TargetNodeId = self.event.EventType
refs.append(ref)
results = self.isession.add_references(refs)
# result.StatusCode.check()
self.emitting_node = emitting_node
def __init__(self, isession, etype=None, source=ua.ObjectIds.Server):
if not etype:
etype = ua.BaseEvent()
self.logger = logging.getLogger(__name__)
self.isession = isession
self.event = None
node = None
if isinstance(etype, ua.BaseEvent):
self.event = etype
elif isinstance(etype, Node):
node = etype
elif isinstance(etype, ua.NodeId):
node = Node(self.isession, etype)
else:
node = Node(self.isession, ua.NodeId(etype))
if node:
self.event = get_event_from_type_node(node)
if isinstance(source, Node):
pass
elif isinstance(source, ua.NodeId):
source = Node(isession, source)
else:
source = Node(isession, ua.NodeId(source))
if self.event.SourceNode:
if source.nodeid != self.event.SourceNode:
self.logger.warning(
"Source NodeId: '%s' and event SourceNode: '%s' are not the same. Using '%s' as SourceNode",
str(source.nodeid), str(self.event.SourceNode),
str(self.event.SourceNode))
source = Node(self.isession, self.event.SourceNode)
self.event.SourceNode = source.nodeid
self.event.SourceName = source.get_browse_name().Name
source.set_attribute(ua.AttributeIds.EventNotifier,
ua.DataValue(ua.Variant(1, ua.VariantType.Byte)))
refs = []
ref = ua.AddReferencesItem()
ref.IsForward = True
ref.ReferenceTypeId = ua.NodeId(ua.ObjectIds.GeneratesEvent)
ref.SourceNodeId = source.nodeid
ref.TargetNodeClass = ua.NodeClass.ObjectType
ref.TargetNodeId = self.event.EventType
refs.append(ref)
results = self.isession.add_references(refs)
def __init__(self, isession, etype=None, source=ua.ObjectIds.Server):
if not etype:
etype = event_objects.BaseEvent()
self.logger = logging.getLogger(__name__)
self.isession = isession
self.event = None
node = None
if isinstance(etype, event_objects.BaseEvent):
self.event = etype
elif isinstance(etype, Node):
node = etype
elif isinstance(etype, ua.NodeId):
node = Node(self.isession, etype)
else:
node = Node(self.isession, ua.NodeId(etype))
if node:
self.event = events.get_event_obj_from_type_node(node)
if isinstance(source, Node):
pass
elif isinstance(source, ua.NodeId):
source = Node(isession, source)
else:
source = Node(isession, ua.NodeId(source))
if self.event.SourceNode:
if source.nodeid != self.event.SourceNode:
self.logger.warning(
"Source NodeId: '%s' and event SourceNode: '%s' are not the same. Using '%s' as SourceNode",
str(source.nodeid), str(self.event.SourceNode), str(self.event.SourceNode))
source = Node(self.isession, self.event.SourceNode)
self.event.SourceNode = source.nodeid
self.event.SourceName = source.get_browse_name().Name
source.set_event_notifier([ua.EventNotifier.SubscribeToEvents])
refs = []
ref = ua.AddReferencesItem()
ref.IsForward = True
ref.ReferenceTypeId = ua.NodeId(ua.ObjectIds.GeneratesEvent)
ref.SourceNodeId = source.nodeid
ref.TargetNodeClass = ua.NodeClass.ObjectType
ref.TargetNodeId = self.event.EventType
refs.append(ref)
results = self.isession.add_references(refs)
def __init__(self, isession, etype=None, emitting_node=ua.ObjectIds.Server):
if not etype:
etype = event_objects.BaseEvent()
self.logger = logging.getLogger(__name__)
self.isession = isession
self.event = None
node = None
if isinstance(etype, event_objects.BaseEvent):
self.event = etype
elif isinstance(etype, Node):
node = etype
elif isinstance(etype, ua.NodeId):
node = Node(self.isession, etype)
else:
node = Node(self.isession, ua.NodeId(etype))
if node:
self.event = events.get_event_obj_from_type_node(node)
if isinstance(emitting_node, Node):
pass
elif isinstance(emitting_node, ua.NodeId):
emitting_node = Node(isession, emitting_node)
else:
emitting_node = Node(isession, ua.NodeId(emitting_node))
self.event.emitting_node = emitting_node.nodeid
if not self.event.SourceNode:
self.event.SourceNode = emitting_node.nodeid
self.event.SourceName = emitting_node.get_browse_name().Name
emitting_node.set_event_notifier([ua.EventNotifier.SubscribeToEvents])
refs = []
ref = ua.AddReferencesItem()
ref.IsForward = True
ref.ReferenceTypeId = ua.NodeId(ua.ObjectIds.GeneratesEvent)
ref.SourceNodeId = emitting_node.nodeid
ref.TargetNodeClass = ua.NodeClass.ObjectType
ref.TargetNodeId = self.event.EventType
refs.append(ref)
results = self.isession.add_references(refs)
# result.StatusCode.check()
self.emitting_node = emitting_node
def get_node_path(self, node: Node):
return '\\.'.join(node.get_browse_name().Name
for node in node.get_path(200000))
