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use crate::{Context, Error, Request, Response, Result};
use async_trait::async_trait;
#[async_trait]
pub trait Service {
type Data: Send + Sync;
async fn handle(
&self,
request: &mut Request,
ctx: &Context<Self::Data>,
) -> Result<Option<Response>>;
}
pub struct Server<'a, T: Send + Sync> {
services: Vec<&'a Box<dyn Service<Data = T>>>,
}
impl<'a, T: Send + Sync> Server<'a, T> {
pub fn new(services: Vec<&'a Box<dyn Service<Data = T>>>) -> Self {
Self {services}
}
pub(crate) async fn handle(
&self,
request: &mut Request,
ctx: &Context<T>,
) -> Result<Response> {
for service in self.services.iter() {
if let Some(result) = service.handle(request, ctx).await? {
return Ok(result);
}
}
let err = Error::MethodNotFound {
name: request.method().to_string(),
id: request.id.clone(),
};
Ok((request, err).into())
}
pub async fn serve(
&self,
request: &mut Request,
ctx: &Context<T>,
) -> Response {
match self.handle(request, ctx).await {
Ok(response) => response,
Err(e) => e.into(),
}
}
}