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use core::fmt::Debug;
use opentelemetry::propagation::Injector;
use proto::nova::ratelimit::ratelimiter::ratelimiter_client::RatelimiterClient;
use std::convert::TryFrom;
use std::hash::Hash;
use std::ops::Deref;
use std::ops::DerefMut;
use tonic::transport::Channel;
use tracing::debug;
#[derive(Debug, Clone)]
pub struct VNode {
address: String,
client: RatelimiterClient<Channel>,
}
impl Deref for VNode {
type Target = RatelimiterClient<Channel>;
fn deref(&self) -> &Self::Target {
&self.client
}
}
impl DerefMut for VNode {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.client
}
}
impl Hash for VNode {
fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
self.address.hash(state);
}
}
pub struct MetadataMap<'a>(pub &'a mut tonic::metadata::MetadataMap);
impl<'a> Injector for MetadataMap<'a> {
/// Set a key and value in the `MetadataMap`. Does nothing if the key or value are not valid inputs
fn set(&mut self, key: &str, value: String) {
if let Ok(key) = tonic::metadata::MetadataKey::from_bytes(key.as_bytes()) {
if let Ok(val) = tonic::metadata::MetadataValue::try_from(&value) {
self.0.insert(key, val);
}
}
}
}
impl VNode {
pub async fn new(address: String, port: u16) -> Result<Self, tonic::transport::Error> {
let host = format!("http://{}:{port}", address.clone());
debug!("connecting to {}", host);
let client = RatelimiterClient::connect(host).await?;
Ok(Self { address, client })
}
}
#[repr(transparent)]
#[derive(Default)]
pub struct HashRingWrapper(hashring::HashRing<VNode>);
impl Deref for HashRingWrapper {
type Target = hashring::HashRing<VNode>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl DerefMut for HashRingWrapper {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.0
}
}
impl Debug for HashRingWrapper {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_tuple("HashRing").finish()
}
}
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