Struct FilterService 

pub struct FilterService { /* private fields */ }

Tower Service implementing the Filter EIP.

If the predicate returns true, the exchange is forwarded through the sub-pipeline. If false, the exchange is returned as-is and the sub-pipeline is skipped entirely.

Implementations

impl FilterService

pub fn new( predicate: impl Fn(&Exchange) -> bool + Send + Sync + 'static, sub_pipeline: BoxProcessor, ) -> Self

Create from a closure predicate and a resolved sub-pipeline.

pub fn from_predicate( predicate: FilterPredicate, sub_pipeline: BoxProcessor, ) -> Self

Create from a pre-boxed FilterPredicate (used by resolve_steps).

Trait Implementations

impl Clone for FilterService

fn clone(&self) -> FilterService

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Service<Exchange> for FilterService

type Response = Exchange

Responses given by the service.

type Error = CamelError

Errors produced by the service.

type Future = Pin<Box<dyn Future<Output = Result<Exchange, CamelError>> + Send>>

The future response value.

fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>

Returns Poll::Ready(Ok(())) when the service is able to process requests.

fn call(&mut self, exchange: Exchange) -> Self::Future

Process the request and return the response asynchronously.