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#![allow(dead_code)]
use std::fmt;
use std::path::PathBuf;
use std::fs::{File, OpenOptions};
use std::io;
use chrono::*;
use libc;
use slog;
use slog_term;
use slog_syslog;
use slog_stream;
use slog::{Drain, DrainExt};
use slog_syslog::Streamer3164;
#[derive(Debug, Clone)]
pub struct Logger {
pub logger: slog::Logger,
}
struct LoggerFormat;
pub enum LoggerLevel {
Debug,
Error,
Info,
Warn,
}
fn logger(path: Option<&str>) -> slog::Logger {
if path.is_some() {
let file = OpenOptions::new()
.append(true)
.create(true)
.open(path.unwrap()).unwrap();
let stream = slog_stream::stream(file, LoggerFormat);
let tty = unsafe { libc::isatty(libc::STDOUT_FILENO as i32) } != 0;
if tty {
let term = slog_term::streamer().build();
slog::Logger::root(slog::duplicate(stream, term).fuse(), o!())
} else {
slog::Logger::root(stream.fuse(), o!())
}
} else {
let stream = slog_term::streamer().build().fuse();
slog::Logger::root(stream, o!())
}
}
impl slog_stream::Format for LoggerFormat {
fn format(&self,
io: &mut io::Write,
rinfo: &slog::Record,
_logger_values: &slog::OwnedKeyValueList)
-> io::Result<()> {
let msg = format!("[{}] {}\n", UTC::now(), rinfo.msg());
let _ = try!(io.write_all(msg.as_bytes()));
Ok(())
}
}
impl Logger {
pub fn new(path: Option<&str>) -> Logger {
let root_logger = logger(path);
Logger{ logger: root_logger }
}
pub fn write(&self, logger_level: LoggerLevel, line: String) {
match logger_level {
LoggerLevel::Error => error!(self.logger, line),
LoggerLevel::Debug => debug!(self.logger, line),
LoggerLevel::Warn => warn!(self.logger, line),
_ => info!(self.logger, line),
}
}
}