rust_with_kafka_tls/
log_utils.rs

1use std::io::Write;
2use std::thread;
3
4use chrono::prelude::*;
5use env_logger::fmt::Formatter;
6use env_logger::Builder;
7use log::LevelFilter;
8use log::Record;
9
10/// setup_logger
11///
12/// Setup a logger for message processing by consumers or producers
13///
14/// # Arguments
15///
16/// * `log_thread` - flag for logging the processing thread
17/// * `rust_log` - string containing the logging level for the function caller
18///
19/// # Examples
20///
21/// ```rust
22/// use rust_with_kafka_tls::log_utils::setup_logger;
23/// setup_logger(true, Some("rdkafka=trace"));
24/// ```
25///
26pub fn setup_logger(log_thread: bool, rust_log: Option<&str>) {
27    let output_format = move |formatter: &mut Formatter, record: &Record| {
28        let thread_name = if log_thread {
29            format!("(t: {}) ", thread::current().name().unwrap_or("unknown"))
30        } else {
31            "".to_string()
32        };
33
34        let local_time: DateTime<Local> = Local::now();
35        let time_str = local_time.format("%H:%M:%S%.3f").to_string();
36        writeln!(
37            formatter,
38            "{} {}{} - {} - {}",
39            time_str,
40            thread_name,
41            record.level(),
42            record.target(),
43            record.args()
44        )
45    };
46
47    let mut builder = Builder::new();
48    builder
49        .format(output_format)
50        .filter(None, LevelFilter::Info);
51
52    rust_log.map(|conf| builder.parse_filters(conf));
53
54    builder.init();
55}
rust_with_kafka_tls/log_utils.rs

rust_with_kafka_tls/
log_utils.rs
