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use std::collections::VecDeque;
use std::fmt;
use std::net::SocketAddr;
use either::Either;
pub trait Address {
fn host(&self) -> &str;
fn port(&self) -> Option<u16>;
}
impl Address for String {
fn host(&self) -> &str {
&self
}
fn port(&self) -> Option<u16> {
None
}
}
impl Address for &'static str {
fn host(&self) -> &str {
self
}
fn port(&self) -> Option<u16> {
None
}
}
#[derive(Eq, PartialEq, Debug, Hash)]
pub struct Connect<T> {
pub(crate) req: T,
pub(crate) port: u16,
pub(crate) addr: Option<Either<SocketAddr, VecDeque<SocketAddr>>>,
}
impl<T: Address> Connect<T> {
pub fn new(req: T) -> Connect<T> {
let (_, port) = parse(req.host());
Connect {
req,
port: port.unwrap_or(0),
addr: None,
}
}
pub fn with(req: T, addr: SocketAddr) -> Connect<T> {
Connect {
req,
port: 0,
addr: Some(Either::Left(addr)),
}
}
pub fn set_port(mut self, port: u16) -> Self {
self.port = port;
self
}
pub fn set_addr(mut self, addr: Option<SocketAddr>) -> Self {
if let Some(addr) = addr {
self.addr = Some(Either::Left(addr));
}
self
}
pub fn host(&self) -> &str {
self.req.host()
}
pub fn port(&self) -> u16 {
self.req.port().unwrap_or(self.port)
}
}
impl<T: Address> From<T> for Connect<T> {
fn from(addr: T) -> Self {
Connect::new(addr)
}
}
impl<T: Address> fmt::Display for Connect<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}:{}", self.host(), self.port())
}
}
fn parse(host: &str) -> (&str, Option<u16>) {
let mut parts_iter = host.splitn(2, ':');
if let Some(host) = parts_iter.next() {
let port_str = parts_iter.next().unwrap_or("");
if let Ok(port) = port_str.parse::<u16>() {
(host, Some(port))
} else {
(host, None)
}
} else {
(host, None)
}
}
pub struct Connection<T, U> {
io: U,
req: T,
}
impl<T, U> Connection<T, U> {
pub fn new(io: U, req: T) -> Self {
Self { io, req }
}
}
impl<T, U> Connection<T, U> {
pub fn from_parts(io: U, req: T) -> Self {
Self { io, req }
}
pub fn into_parts(self) -> (U, T) {
(self.io, self.req)
}
pub fn replace<Y>(self, io: Y) -> (U, Connection<T, Y>) {
(self.io, Connection { io, req: self.req })
}
pub fn get_ref(&self) -> &U {
&self.io
}
pub fn get_mut(&mut self) -> &mut U {
&mut self.io
}
}
impl<T: Address, U> Connection<T, U> {
pub fn host(&self) -> &str {
&self.req.host()
}
}
impl<T, U> std::ops::Deref for Connection<T, U> {
type Target = U;
fn deref(&self) -> &U {
&self.io
}
}
impl<T, U> std::ops::DerefMut for Connection<T, U> {
fn deref_mut(&mut self) -> &mut U {
&mut self.io
}
}
impl<T, U: fmt::Debug> fmt::Debug for Connection<T, U> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "Stream {{{:?}}}", self.io)
}
}