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use std::marker::PhantomData;
use super::*;
use reply::Reply;
pub fn serv_state<F, S, Req, Resp, E>(state: S, f: F) -> HyperService
where
F: for<'a> Fn(&'a S, Req) -> Box<Future<Item = Resp, Error = E>> + 'static,
S: 'static,
Req: for<'de> serde::Deserialize<'de> + 'static,
Resp: serde::Serialize + 'static,
E: From<Error> + Debug + std::error::Error + 'static,
{
reply::ServiceReply::serv_state(state, f)
}
pub fn serv<F, Req, Resp, E>(f: F) -> HyperService
where
F: Fn(Req) -> Box<Future<Item = Resp, Error = E>> + 'static,
Req: for<'de> serde::Deserialize<'de> + 'static,
Resp: serde::Serialize + 'static,
E: From<Error> + Debug + std::error::Error + 'static,
{
reply::ServiceReply::serv(f)
}
pub(crate) struct AsyncServiceFn<F, Req, Resp, E>
where
F: Fn(Req) -> Box<Future<Item = Resp, Error = E>>,
Req: 'static,
Resp: 'static,
{
f: F,
_req: PhantomData<Req>,
_resp: PhantomData<Resp>,
}
impl<F, Req, Resp, E> AsyncServiceFn<F, Req, Resp, E>
where
F: Fn(Req) -> Box<Future<Item = Resp, Error = E>>,
Req: 'static,
Resp: 'static,
{
pub(crate) fn new(f: F) -> Self {
Self {
f,
_req: Default::default(),
_resp: Default::default(),
}
}
}
impl<F, Req, Resp, E> AsyncService for AsyncServiceFn<F, Req, Resp, E>
where
F: Fn(Req) -> Box<Future<Item = Resp, Error = E>>,
Req: 'static,
Resp: 'static,
{
type Req = Req;
type Resp = Resp;
type E = E;
fn call(&self, req: Self::Req) -> Box<Future<Item = Self::Resp, Error = Self::E>> {
let f = &self.f;
f(req)
}
}
pub(crate) trait AsyncService {
type Req;
type Resp;
type E;
fn call(&self, req: Self::Req) -> Box<Future<Item = Self::Resp, Error = Self::E>>;
}
pub(crate) struct AsyncServiceStateW<T, Reply> {
inner: SyncObj<T>,
reply: PhantomData<Reply>,
}
impl<T, Reply> AsyncServiceStateW<T, Reply> {
pub(crate) fn new(t: T) -> Self {
Self {
inner: SyncObj::new(t),
reply: Default::default(),
}
}
}
impl<T, Req, Resp, E, Reply> Service for AsyncServiceStateW<T, Reply>
where
T: AsyncService<Req = Req, Resp = Resp, E = E> + 'static,
Req: for<'de> serde::Deserialize<'de> + 'static,
Resp: serde::Serialize + 'static,
E: From<Error> + 'static,
Reply: reply::Reply<Resp, E> + 'static,
{
type Request = Request;
type Response = Response;
type Error = hyper::Error;
type Future = HyperFuture;
fn call(&self, req: Self::Request) -> Self::Future {
let obj = self.inner.clone();
let f = parse_req(req)
.map_err(E::from)
.and_then(move |req| T::call(&obj, req))
.then(|resp| {
let status = match resp.is_ok() {
true => hyper::StatusCode::Ok,
false => match resp.as_ref().err() {
_ => hyper::StatusCode::BadRequest,
},
};
Reply::from(resp).reply(status)
});
Box::new(f)
}
}