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#![deny(missing_docs)]
#[macro_use]
extern crate log;
use log::Level;
use metrics_core::{Builder, Drain, Observe, Observer};
use std::{thread, time::Duration};
use tokio::time;
pub struct LogExporter<C, B>
where
B: Builder,
{
controller: C,
observer: B::Output,
level: Level,
interval: Duration,
}
impl<C, B> LogExporter<C, B>
where
B: Builder,
B::Output: Drain<String> + Observer,
C: Observe,
{
pub fn new(controller: C, builder: B, level: Level, interval: Duration) -> Self {
LogExporter {
controller,
observer: builder.build(),
level,
interval,
}
}
pub fn run(&mut self) {
loop {
thread::sleep(self.interval);
self.turn();
}
}
pub fn turn(&mut self) {
self.controller.observe(&mut self.observer);
let output = self.observer.drain();
log!(self.level, "{}", output);
}
pub async fn async_run(mut self) {
let mut interval = time::interval(self.interval);
loop {
interval.tick().await;
self.turn();
}
}
}