You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
2.6 KiB
93 lines
2.6 KiB
use std::collections::HashMap;
|
|
use std::sync::Arc;
|
|
|
|
use log::warn;
|
|
use parking_lot::Mutex;
|
|
use solstice_proto::server::{
|
|
ServerRequest, ServerResponse, UserStatusRequest, UserStatusResponse,
|
|
};
|
|
|
|
use crate::{ClientHandlerFactory, RequestHandler};
|
|
|
|
/// A map of user names to user status responses to serve.
|
|
#[derive(Debug, Default)]
|
|
pub struct UserStatusMap {
|
|
map: HashMap<String, UserStatusResponse>,
|
|
}
|
|
|
|
// IDEA: impl FromIterator<UserStatusResponse> for UserStatusMap.
|
|
|
|
impl UserStatusMap {
|
|
/// Inserts the given `response` in this map.
|
|
/// Overwrites the previous entry for the same user name, if any.
|
|
pub fn insert(&mut self, response: UserStatusResponse) {
|
|
self.map.insert(response.user_name.clone(), response);
|
|
}
|
|
|
|
/// Returns a clone of the response for the given user name.
|
|
pub fn get(&self, user_name: &str) -> Option<UserStatusResponse> {
|
|
self.map.get(user_name).map(|response| response.clone())
|
|
}
|
|
}
|
|
|
|
/// A handler that can serve responses to user status requests.
|
|
/// Responses are sent only for users who appear in `user_status_map`.
|
|
/// All other requests are ignored.
|
|
#[derive(Clone, Default)]
|
|
pub struct UserStatusHandler {
|
|
user_status_map: Arc<Mutex<UserStatusMap>>,
|
|
}
|
|
|
|
impl RequestHandler for UserStatusHandler {
|
|
fn handle(
|
|
&mut self,
|
|
request: &ServerRequest,
|
|
) -> anyhow::Result<Option<ServerResponse>> {
|
|
let user_name = match request {
|
|
ServerRequest::UserStatusRequest(UserStatusRequest { ref user_name }) => {
|
|
user_name
|
|
}
|
|
_ => {
|
|
warn!("Unhandled request: {:?}", request);
|
|
return Ok(None);
|
|
}
|
|
};
|
|
|
|
let entry = self.user_status_map.lock().get(user_name);
|
|
if let Some(response) = entry {
|
|
Ok(Some(ServerResponse::UserStatusResponse(response)))
|
|
} else {
|
|
warn!("Received UserStatusRequest for unknown user {}", user_name);
|
|
Ok(None)
|
|
}
|
|
}
|
|
}
|
|
|
|
/// A factory for `UserStatusHandler`. All handlers share `user_status_map`.
|
|
#[derive(Default)]
|
|
pub struct UserStatusHandlerFactory {
|
|
/// The status map from which responses are served.
|
|
///
|
|
/// Testing code may wish to retain a copy of this in order to mutate the map
|
|
/// concurrently with requests being handled.
|
|
pub user_status_map: Arc<Mutex<UserStatusMap>>,
|
|
}
|
|
|
|
impl ClientHandlerFactory for UserStatusHandlerFactory {
|
|
type Handler = UserStatusHandler;
|
|
|
|
fn make(&self) -> Self::Handler {
|
|
Self::Handler {
|
|
user_status_map: self.user_status_map.clone(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl UserStatusHandlerFactory {
|
|
/// Convenience function to create a new factory wrapping the given `map`.
|
|
pub fn new(map: UserStatusMap) -> Self {
|
|
Self {
|
|
user_status_map: Arc::new(Mutex::new(map)),
|
|
}
|
|
}
|
|
}
|