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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
mod fs_client;
pub(crate) mod http_client;
pub(crate) mod null_client;
use std::sync::Arc;
use remote_settings::RemoteSettingsService;
use url::Url;
use crate::Experiment;
use crate::error::{NimbusError, Result};
use crate::stateful::client::fs_client::FileSystemClient;
use crate::stateful::client::null_client::NullClient;
pub struct NimbusServerSettings {
pub rs_service: Arc<RemoteSettingsService>,
pub collection_name: String,
}
pub(crate) fn create_client(
rs_info: Option<NimbusServerSettings>,
) -> Result<Box<dyn SettingsClient + Send>> {
Ok(match rs_info {
Some(NimbusServerSettings {
rs_service,
collection_name,
}) => {
let url = Url::parse(&rs_service.client_url())?; // server url
match url.scheme() {
"file" => {
// Everything in `config` other than the url/path is ignored for the
// file-system - we could insist on a sub-directory, but that doesn't
// seem valuable for the use-cases we care about here.
let path = match url.to_file_path() {
Ok(path) => path,
_ => return Err(NimbusError::InvalidPath(url.into())),
};
Box::new(FileSystemClient::new(path)?)
}
_ => Box::new(rs_service.make_client(collection_name)),
}
}
None => Box::new(NullClient::new()),
})
}
// The trait used to fetch experiments.
pub(crate) trait SettingsClient {
#[allow(dead_code)]
fn get_experiments_metadata(&self) -> Result<String>;
fn fetch_experiments(&self) -> Result<Vec<Experiment>>;
}