dipstick/examples/text_format_label.rs

37 lines
1.1 KiB
Rust

//! Print metrics to stderr with custom formatter including a label.
extern crate dipstick;
use std::thread::sleep;
use std::time::Duration;
use dipstick::{Stream, InputScope, Input, Formatting, AppLabel,
MetricName, InputKind, LineTemplate, LineFormat, LineOp, LabelOp};
/// Generates template like "$METRIC $value $label_value["abc"]\n"
struct MyFormat;
impl LineFormat for MyFormat {
fn template(&self, name: &MetricName, _kind: InputKind) -> LineTemplate {
vec![
LineOp::Literal(format!("{} ", name.join(".")).to_uppercase().into()),
LineOp::ValueAsText,
LineOp::Literal(" ".into()),
LineOp::LabelExists("abc".into(),
vec![LabelOp::LabelKey, LabelOp::Literal(":".into()), LabelOp::LabelValue],
),
LineOp::NewLine,
].into()
}
}
fn main() {
let counter = Stream::to_stderr().formatting(MyFormat).metrics().counter("counter_a");
AppLabel::set("abc", "xyz");
loop {
// report some metric values from our "application" loop
counter.count(11);
sleep(Duration::from_millis(500));
}
}