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use opcua_types::service_types::ViewAttributes;
use crate::address_space::{base::Base, node::Node, node::NodeBase, EventNotifier};
node_builder_impl!(ViewBuilder, View);
node_builder_impl_generates_event!(ViewBuilder);
impl ViewBuilder {
pub fn contains_no_loops(mut self, contains_no_loops: bool) -> Self {
self.node.set_contains_no_loops(contains_no_loops);
self
}
pub fn event_notifier(mut self, event_notifier: EventNotifier) -> Self {
self.node.set_event_notifier(event_notifier);
self
}
}
#[derive(Debug)]
pub struct View {
base: Base,
event_notifier: EventNotifier,
contains_no_loops: bool,
}
impl Default for View {
fn default() -> Self {
Self {
base: Base::new(NodeClass::View, &NodeId::null(), "", ""),
event_notifier: EventNotifier::empty(),
contains_no_loops: true,
}
}
}
node_base_impl!(View);
impl Node for View {
fn get_attribute_max_age(
&self,
timestamps_to_return: TimestampsToReturn,
attribute_id: AttributeId,
index_range: NumericRange,
data_encoding: &QualifiedName,
max_age: f64,
) -> Option<DataValue> {
match attribute_id {
AttributeId::EventNotifier => Some(Variant::from(self.event_notifier().bits()).into()),
AttributeId::ContainsNoLoops => Some(Variant::from(self.contains_no_loops()).into()),
_ => self.base.get_attribute_max_age(
timestamps_to_return,
attribute_id,
index_range,
data_encoding,
max_age,
),
}
}
fn set_attribute(
&mut self,
attribute_id: AttributeId,
value: Variant,
) -> Result<(), StatusCode> {
match attribute_id {
AttributeId::EventNotifier => {
if let Variant::Byte(v) = value {
self.set_event_notifier(EventNotifier::from_bits_truncate(v));
Ok(())
} else {
Err(StatusCode::BadTypeMismatch)
}
}
AttributeId::ContainsNoLoops => {
if let Variant::Boolean(v) = value {
self.set_contains_no_loops(v);
Ok(())
} else {
Err(StatusCode::BadTypeMismatch)
}
}
_ => self.base.set_attribute(attribute_id, value),
}
}
}
impl View {
pub fn new<R, S>(
node_id: &NodeId,
browse_name: R,
display_name: S,
event_notifier: EventNotifier,
contains_no_loops: bool,
) -> View
where
R: Into<QualifiedName>,
S: Into<LocalizedText>,
{
View {
base: Base::new(NodeClass::View, node_id, browse_name, display_name),
event_notifier,
contains_no_loops,
}
}
pub fn from_attributes<S>(
node_id: &NodeId,
browse_name: S,
attributes: ViewAttributes,
) -> Result<Self, ()>
where
S: Into<QualifiedName>,
{
let mandatory_attributes = AttributesMask::DISPLAY_NAME
| AttributesMask::EVENT_NOTIFIER
| AttributesMask::CONTAINS_NO_LOOPS;
let mask = AttributesMask::from_bits_truncate(attributes.specified_attributes);
if mask.contains(mandatory_attributes) {
let event_notifier = EventNotifier::from_bits_truncate(attributes.event_notifier);
let mut node = Self::new(
node_id,
browse_name,
attributes.display_name,
event_notifier,
attributes.contains_no_loops,
);
if mask.contains(AttributesMask::DESCRIPTION) {
node.set_description(attributes.description);
}
if mask.contains(AttributesMask::WRITE_MASK) {
node.set_write_mask(WriteMask::from_bits_truncate(attributes.write_mask));
}
if mask.contains(AttributesMask::USER_WRITE_MASK) {
node.set_user_write_mask(WriteMask::from_bits_truncate(attributes.user_write_mask));
}
Ok(node)
} else {
error!("View cannot be created from attributes - missing mandatory values");
Err(())
}
}
pub fn is_valid(&self) -> bool {
self.base.is_valid()
}
pub fn event_notifier(&self) -> EventNotifier {
self.event_notifier
}
pub fn set_event_notifier(&mut self, event_notifier: EventNotifier) {
self.event_notifier = event_notifier;
}
pub fn contains_no_loops(&self) -> bool {
self.contains_no_loops
}
pub fn set_contains_no_loops(&mut self, contains_no_loops: bool) {
self.contains_no_loops = contains_no_loops
}
}
