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|
use std::{collections::HashMap, sync::Arc};
#[cfg(feature = "smol")]
use futures_rustls::rustls;
#[cfg(feature = "tokio")]
use tokio_rustls::rustls;
use karyon_core::{async_runtime::Executor, async_util::TaskGroup};
use karyon_net::{Endpoint, Listener, ToEndpoint};
#[cfg(feature = "ws")]
use crate::codec::WsJsonCodec;
#[cfg(feature = "ws")]
use karyon_net::ws::ServerWsConfig;
use crate::{codec::JsonCodec, Error, PubSubRPCService, RPCService, Result, TcpConfig};
use super::Server;
/// Builder for constructing an RPC [`Server`].
pub struct ServerBuilder {
endpoint: Endpoint,
tcp_config: TcpConfig,
tls_config: Option<rustls::ServerConfig>,
services: HashMap<String, Arc<dyn RPCService + 'static>>,
pubsub_services: HashMap<String, Arc<dyn PubSubRPCService + 'static>>,
}
impl ServerBuilder {
/// Adds a new RPC service to the server.
pub fn service(mut self, service: Arc<dyn RPCService>) -> Self {
self.services.insert(service.name(), service);
self
}
/// Adds a new PubSub RPC service to the server.
pub fn pubsub_service(mut self, service: Arc<dyn PubSubRPCService>) -> Self {
self.pubsub_services.insert(service.name(), service);
self
}
/// Configure TCP settings for the server.
///
/// # Example
///
/// ```ignore
/// let tcp_config = TcpConfig::default();
/// let server = Server::builder()?.tcp_config(tcp_config)?.build()?;
/// ```
///
/// This function will return an error if the endpoint does not support TCP protocols.
pub fn tcp_config(mut self, config: TcpConfig) -> Result<ServerBuilder> {
match self.endpoint {
Endpoint::Tcp(..) | Endpoint::Tls(..) | Endpoint::Ws(..) | Endpoint::Wss(..) => {
self.tcp_config = config;
Ok(self)
}
_ => Err(Error::UnsupportedProtocol(self.endpoint.to_string())),
}
}
/// Configure TLS settings for the server.
///
/// # Example
///
/// ```ignore
/// let tls_config = rustls::ServerConfig::new(...);
/// let server = Server::builder()?.tls_config(tls_config)?.build()?;
/// ```
///
/// This function will return an error if the endpoint does not support TLS protocols.
pub fn tls_config(mut self, config: rustls::ServerConfig) -> Result<ServerBuilder> {
match self.endpoint {
Endpoint::Tcp(..) | Endpoint::Tls(..) | Endpoint::Ws(..) | Endpoint::Wss(..) => {
self.tls_config = Some(config);
Ok(self)
}
_ => Err(Error::UnsupportedProtocol(self.endpoint.to_string())),
}
}
/// Builds the server with the configured options.
pub async fn build(self) -> Result<Arc<Server>> {
self._build(TaskGroup::new()).await
}
/// Builds the server with the configured options and an executor.
pub async fn build_with_executor(self, ex: Executor) -> Result<Arc<Server>> {
self._build(TaskGroup::with_executor(ex)).await
}
async fn _build(self, task_group: TaskGroup) -> Result<Arc<Server>> {
let listener: Listener<serde_json::Value> = match self.endpoint {
Endpoint::Tcp(..) | Endpoint::Tls(..) => match &self.tls_config {
Some(conf) => Box::new(
karyon_net::tls::listen(
&self.endpoint,
karyon_net::tls::ServerTlsConfig {
server_config: conf.clone(),
tcp_config: self.tcp_config,
},
JsonCodec {},
)
.await?,
),
None => Box::new(
karyon_net::tcp::listen(&self.endpoint, self.tcp_config, JsonCodec {}).await?,
),
},
#[cfg(feature = "ws")]
Endpoint::Ws(..) | Endpoint::Wss(..) => match &self.tls_config {
Some(conf) => Box::new(
karyon_net::ws::listen(
&self.endpoint,
ServerWsConfig {
tcp_config: self.tcp_config,
wss_config: Some(karyon_net::ws::ServerWssConfig {
server_config: conf.clone(),
}),
},
WsJsonCodec {},
)
.await?,
),
None => {
let config = ServerWsConfig {
tcp_config: self.tcp_config,
wss_config: None,
};
Box::new(karyon_net::ws::listen(&self.endpoint, config, WsJsonCodec {}).await?)
}
},
#[cfg(all(feature = "unix", target_family = "unix"))]
Endpoint::Unix(..) => Box::new(karyon_net::unix::listen(
&self.endpoint,
Default::default(),
JsonCodec {},
)?),
_ => return Err(Error::UnsupportedProtocol(self.endpoint.to_string())),
};
Ok(Arc::new(Server {
listener,
task_group,
services: self.services,
pubsub_services: self.pubsub_services,
}))
}
}
impl Server {
/// Creates a new [`ServerBuilder`]
///
/// This function initializes a `ServerBuilder` with the specified endpoint.
///
/// # Example
///
/// ```ignore
/// let builder = Server::builder("ws://127.0.0.1:3000")?.build()?;
/// ```
pub fn builder(endpoint: impl ToEndpoint) -> Result<ServerBuilder> {
let endpoint = endpoint.to_endpoint()?;
Ok(ServerBuilder {
endpoint,
services: HashMap::new(),
pubsub_services: HashMap::new(),
tcp_config: Default::default(),
tls_config: None,
})
}
}
|
