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use core::pin::Pin;
use core::task::{Context, Poll};
use futures::ready;
use futures::stream::*;
use hyper::body::{Bytes, HttpBody};
use crate::error::Error;
type StreamType = Pin<Box<dyn Stream<Item = Result<Bytes, Error>> + Send>>;
pub struct StreamBody {
stream: StreamType,
}
impl StreamBody {
pub fn new(stream: StreamType) -> Self {
Self { stream }
}
}
impl HttpBody for StreamBody {
type Data = Bytes;
type Error = Error;
fn poll_data(
mut self: Pin<&mut Self>,
cx: &mut Context,
) -> Poll<Option<Result<Bytes, Self::Error>>> {
match ready!(self.stream.as_mut().poll_next(cx)) {
Some(res) => Poll::Ready(Some(res)),
None => Poll::Ready(None),
}
}
fn poll_trailers(
self: Pin<&mut Self>,
_cx: &mut Context,
) -> Poll<Result<Option<hyper::HeaderMap<hyper::header::HeaderValue>>, Self::Error>> {
Poll::Ready(Ok(None))
}
}
pub struct BytesBody {
bytes: Option<Bytes>,
}
impl BytesBody {
pub fn new(bytes: Bytes) -> Self {
Self { bytes: Some(bytes) }
}
}
impl HttpBody for BytesBody {
type Data = Bytes;
type Error = Error;
fn poll_data(
mut self: Pin<&mut Self>,
_cx: &mut Context,
) -> Poll<Option<Result<Bytes, Self::Error>>> {
Poll::Ready(self.bytes.take().map(Ok))
}
fn poll_trailers(
self: Pin<&mut Self>,
_cx: &mut Context,
) -> Poll<Result<Option<hyper::HeaderMap<hyper::header::HeaderValue>>, Self::Error>> {
Poll::Ready(Ok(None))
}
}
impl From<String> for BytesBody {
fn from(x: String) -> BytesBody {
Self::new(Bytes::from(x))
}
}
impl From<Vec<u8>> for BytesBody {
fn from(x: Vec<u8>) -> BytesBody {
Self::new(Bytes::from(x))
}
}
|
