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use std::net::SocketAddr;
use std::sync::Arc;
use crate::core;
use crate::server_utils;
use crate::server_utils::cors::Origin;
use crate::server_utils::hosts::{DomainsValidation, Host};
use crate::server_utils::reactor::UninitializedExecutor;
use crate::server_utils::session::SessionStats;
use crate::error::Result;
use crate::metadata::{MetaExtractor, NoopExtractor};
use crate::server::Server;
use crate::session;
pub struct ServerBuilder<M: core::Metadata, S: core::Middleware<M>> {
handler: Arc<core::MetaIoHandler<M, S>>,
meta_extractor: Arc<dyn MetaExtractor<M>>,
allowed_origins: Option<Vec<Origin>>,
allowed_hosts: Option<Vec<Host>>,
request_middleware: Option<Arc<dyn session::RequestMiddleware>>,
session_stats: Option<Arc<dyn SessionStats>>,
executor: UninitializedExecutor,
max_connections: usize,
max_payload_bytes: usize,
max_in_buffer_capacity: usize,
max_out_buffer_capacity: usize,
}
impl<M: core::Metadata + Default, S: core::Middleware<M>> ServerBuilder<M, S>
where
S::Future: Unpin,
S::CallFuture: Unpin,
{
pub fn new<T>(handler: T) -> Self
where
T: Into<core::MetaIoHandler<M, S>>,
{
Self::with_meta_extractor(handler, NoopExtractor)
}
}
impl<M: core::Metadata, S: core::Middleware<M>> ServerBuilder<M, S>
where
S::Future: Unpin,
S::CallFuture: Unpin,
{
pub fn with_meta_extractor<T, E>(handler: T, extractor: E) -> Self
where
T: Into<core::MetaIoHandler<M, S>>,
E: MetaExtractor<M>,
{
ServerBuilder {
handler: Arc::new(handler.into()),
meta_extractor: Arc::new(extractor),
allowed_origins: None,
allowed_hosts: None,
request_middleware: None,
session_stats: None,
executor: UninitializedExecutor::Unspawned,
max_connections: 100,
max_payload_bytes: 5 * 1024 * 1024,
max_in_buffer_capacity: 10 * 1024 * 1024,
max_out_buffer_capacity: 10 * 1024 * 1024,
}
}
pub fn event_loop_executor(mut self, executor: server_utils::tokio::runtime::TaskExecutor) -> Self {
self.executor = UninitializedExecutor::Shared(executor);
self
}
pub fn session_meta_extractor<T: MetaExtractor<M>>(mut self, extractor: T) -> Self {
self.meta_extractor = Arc::new(extractor);
self
}
pub fn allowed_origins(mut self, allowed_origins: DomainsValidation<Origin>) -> Self {
self.allowed_origins = allowed_origins.into();
self
}
pub fn allowed_hosts(mut self, allowed_hosts: DomainsValidation<Host>) -> Self {
self.allowed_hosts = allowed_hosts.into();
self
}
pub fn session_stats<T: SessionStats>(mut self, stats: T) -> Self {
self.session_stats = Some(Arc::new(stats));
self
}
pub fn request_middleware<T: session::RequestMiddleware>(mut self, middleware: T) -> Self {
self.request_middleware = Some(Arc::new(middleware));
self
}
pub fn max_connections(mut self, max_connections: usize) -> Self {
self.max_connections = max_connections;
self
}
pub fn max_payload(mut self, max_payload_bytes: usize) -> Self {
self.max_payload_bytes = max_payload_bytes;
self
}
pub fn max_in_buffer_capacity(mut self, max_in_buffer_capacity: usize) -> Self {
self.max_in_buffer_capacity = max_in_buffer_capacity;
self
}
pub fn max_out_buffer_capacity(mut self, max_out_buffer_capacity: usize) -> Self {
self.max_out_buffer_capacity = max_out_buffer_capacity;
self
}
pub fn start(self, addr: &SocketAddr) -> Result<Server> {
Server::start(
addr,
self.handler,
self.meta_extractor,
self.allowed_origins,
self.allowed_hosts,
self.request_middleware,
self.session_stats,
self.executor,
self.max_connections,
self.max_payload_bytes,
self.max_in_buffer_capacity,
self.max_out_buffer_capacity,
)
}
}
#[cfg(test)]
mod tests {
use super::*;
fn basic_server_builder() -> ServerBuilder<(), jsonrpc_core::middleware::Noop> {
let io = core::IoHandler::default();
ServerBuilder::new(io)
}
#[test]
fn config_usize_vals_have_correct_defaults() {
let server = basic_server_builder();
assert_eq!(server.max_connections, 100);
assert_eq!(server.max_payload_bytes, 5 * 1024 * 1024);
assert_eq!(server.max_in_buffer_capacity, 10 * 1024 * 1024);
assert_eq!(server.max_out_buffer_capacity, 10 * 1024 * 1024);
}
#[test]
fn config_usize_vals_can_be_set() {
let server = basic_server_builder();
let server = server.max_connections(10);
assert_eq!(server.max_connections, 10);
let server = server.max_payload(29);
assert_eq!(server.max_payload_bytes, 29);
let server = server.max_in_buffer_capacity(38);
assert_eq!(server.max_in_buffer_capacity, 38);
let server = server.max_out_buffer_capacity(47);
assert_eq!(server.max_out_buffer_capacity, 47);
assert_eq!(server.max_connections, 10);
assert_eq!(server.max_payload_bytes, 29);
assert_eq!(server.max_in_buffer_capacity, 38);
assert_eq!(server.max_out_buffer_capacity, 47);
}
}