Struct PdpRouter 

pub struct PdpRouter { /* private fields */ }

Dispatches PDP calls to the right resolver based on Step::Pdp.call.dialect. Construct with new(), add resolvers via register, then hand the router to a route handler.

Cloning is cheap (refcount bumps on each resolver Arc) — the AplConfigVisitor snapshots its accumulated router into an Arc for every installed route handler so a config reload that mutates the visitor state doesn’t tear in-flight handlers.

Implementations

impl PdpRouter

pub fn new() -> Self

pub fn register(&mut self, resolver: Arc<dyn PdpResolver>) -> &mut Self

Register a resolver for its declared dialect. If a resolver is already registered for that dialect the new one is dropped and a warning is logged — explicit replacement should go through replace instead so the intent is visible at call sites.

pub fn replace(&mut self, resolver: Arc<dyn PdpResolver>) -> &mut Self

Replace any existing resolver for the new resolver’s dialect. Use this when the host genuinely wants to swap in a different implementation (testing, A/B rollout).

pub fn len(&self) -> usize

Number of registered resolvers. Useful for tests.

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for PdpRouter

fn clone(&self) -> PdpRouter

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for PdpRouter

fn default() -> Self

Returns the “default value” for a type.

impl PdpResolver for PdpRouter

fn dialect(&self) -> PdpDialect

What dialect this resolver handles. The evaluator routes PDP steps to the resolver whose dialect() matches Step::Pdp.call.dialect.

fn evaluate<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, call: &'life1 PdpCall, bag: &'life2 AttributeBag, ) -> Pin<Box<dyn Future<Output = Result<PdpDecision, PdpError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,