Files
daqbuffer/retrieval/src/client.rs
Dominik Werder af9c11bdd8 up
2021-05-06 17:53:45 +02:00

90 lines
3.0 KiB
Rust

use chrono::{DateTime, Utc};
use disk::frame::inmem::InMemoryFrameAsyncReadStream;
use err::Error;
use futures_util::TryStreamExt;
use http::StatusCode;
use hyper::Body;
use netpod::log::*;
pub async fn get_binned(
host: String,
port: u16,
channel_backend: String,
channel_name: String,
beg_date: DateTime<Utc>,
end_date: DateTime<Utc>,
bin_count: u32,
) -> Result<(), Error> {
info!("------- get_binned client");
let t1 = Utc::now();
let date_fmt = "%Y-%m-%dT%H:%M:%S.%3fZ";
let uri = format!(
"http://{}:{}/api/1/binned?channel_backend={}&channel_name={}&beg_date={}&end_date={}&bin_count={}",
host,
port,
channel_backend,
channel_name,
beg_date.format(date_fmt),
end_date.format(date_fmt),
bin_count,
);
info!("get_binned uri {:?}", uri);
let req = hyper::Request::builder()
.method(http::Method::GET)
.uri(uri)
.body(Body::empty())?;
let client = hyper::Client::new();
let res = client.request(req).await?;
if res.status() != StatusCode::OK {
error!("Server error {:?}", res);
return Err(Error::with_msg(format!("Server error {:?}", res)));
}
let s1 = disk::cache::HttpBodyAsAsyncRead::new(res);
let s2 = InMemoryFrameAsyncReadStream::new(s1);
use futures_util::StreamExt;
use std::future::ready;
let mut bin_count = 0;
let s3 = s2
.map_err(|e| error!("get_binned {:?}", e))
.filter_map(|item| {
let g = match item {
Ok(frame) => {
type ExpectedType = disk::cache::BinnedBytesForHttpStreamFrame;
let n1 = frame.buf().len();
match bincode::deserialize::<ExpectedType>(frame.buf()) {
Ok(item) => match item {
Ok(item) => {
info!("len {} item {:?}", n1, item);
bin_count += 1;
Some(Ok(item))
}
Err(e) => {
error!("len {} error frame {:?}", n1, e);
Some(Err(e))
}
},
Err(e) => {
error!("len {} bincode error {:?}", n1, e);
Some(Err(e.into()))
}
}
}
Err(e) => Some(Err(Error::with_msg(format!("{:?}", e)))),
};
ready(g)
})
.for_each(|_| ready(()));
s3.await;
let t2 = chrono::Utc::now();
let ntot = 0;
let ms = t2.signed_duration_since(t1).num_milliseconds() as u64;
let throughput = ntot / 1024 * 1000 / ms;
info!(
"get_cached_0 DONE total download {} MB throughput {:5} kB/s bin_count {}",
ntot / 1024 / 1024,
throughput,
bin_count,
);
Ok(())
}