Struct LogFilterKV

pub struct LogFilterKV { /* private fields */ }

LogFilter that carries one additional value into log format

Example with a key as “req_id”:

use captains_log::*;
fn debug_format_req_id_f(r: FormatRecord) -> String {
    let time = r.time();
    let level = r.level();
    let file = r.file();
    let line = r.line();
    let msg = r.msg();
    let req_id = r.key("req_id");
    format!("[{time}][{level}][{file}:{line}] {msg}{req_id}\n").to_string()
}
let mut builder = recipe::file_logger_custom("/tmp", "log_filter", log::Level::Debug,
    recipe::DEFAULT_TIME, debug_format_req_id_f);
builder.dynamic = true;

builder.build().expect("setup_log");
let logger = LogFilterKV::new("req_id", format!("{:016x}", 123).to_string());
logger_debug!(logger, "captain's log");

Implementations

impl LogFilterKV

pub fn new(key: &'static str, value: String) -> Self

pub fn set_level(&self, level: Level)

When LogFilter is shared in Arc, allows concurrently changing log level filter

pub fn get_level(&self) -> usize

Trait Implementations

impl Clone for LogFilterKV

fn clone(&self) -> LogFilterKV

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Source for LogFilterKV

fn visit<'kvs>(&'kvs self, visitor: &mut dyn Visitor<'kvs>) -> Result<(), Error>

Visit key-values.

fn get<'a>(&'a self, key: Key<'_>) -> Option<Value<'a>>

Get the value for a given key.

fn count(&self) -> usize

Count the number of key-values that can be visited.