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log_panel.rs
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log_panel.rs
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use std::{fs::File, io::Write};
use async_logger::Writer;
use async_logger_log::Logger;
use capnp::message::Builder;
use chrono::Local;
use log::{debug, error, info, warn, LevelFilter, Record};
use sbp::messages::logging::MsgLog;
use serde::{Deserialize, Serialize};
use crate::client_sender::BoxedClientSender;
use crate::common_constants as cc;
use crate::constants::LOG_WRITER_BUFFER_MESSAGE_COUNT;
use crate::errors::CONSOLE_LOG_JSON_TO_STRING_FAILURE;
use crate::shared_state::SharedState;
use crate::utils::serialize_capnproto_builder;
const DEVICE: &str = "DEVICE";
const CONSOLE: &str = "CONSOLE";
pub type LogLevel = cc::LogLevel;
impl LogLevel {
pub fn level_filter(&self) -> LevelFilter {
match self {
cc::LogLevel::DEBUG => LevelFilter::Debug,
cc::LogLevel::INFO => LevelFilter::Info,
cc::LogLevel::NOTICE | cc::LogLevel::WARNING => LevelFilter::Warn,
cc::LogLevel::ERROR => LevelFilter::Error,
}
}
}
pub fn handle_log_msg(msg: MsgLog) {
let text = msg.text.to_string();
let level: SbpMsgLevel = SbpMsgLevel::from(msg.level);
match level {
SbpMsgLevel::Emergency
| SbpMsgLevel::Alert
| SbpMsgLevel::Critical
| SbpMsgLevel::Error => error!(target: DEVICE, "{}", text),
SbpMsgLevel::Warn | SbpMsgLevel::Notice => warn!(target: DEVICE, "{}", text),
SbpMsgLevel::Info => info!(target: DEVICE, "{}", text),
_ => debug!(target: DEVICE, "{}", text),
}
}
pub fn setup_logging(client_sender: BoxedClientSender, shared_state: SharedState) {
let log_panel = LogPanelWriter::new(client_sender, shared_state);
let logger = Logger::builder()
.buf_size(LOG_WRITER_BUFFER_MESSAGE_COUNT)
.formatter(splitable_log_formatter)
.writer(Box::new(log_panel))
.build()
.unwrap();
log::set_boxed_logger(Box::new(logger)).expect("Failed to set logger");
log::set_max_level(LevelFilter::Debug);
}
#[derive(Debug)]
struct LogPanelWriter {
client_sender: BoxedClientSender,
shared_state: SharedState,
log_file: Option<File>,
}
impl LogPanelWriter {
pub fn new(client_sender: BoxedClientSender, shared_state: SharedState) -> LogPanelWriter {
LogPanelWriter {
log_file: init_log_file(&shared_state),
client_sender,
shared_state,
}
}
}
impl Writer<Box<String>> for LogPanelWriter {
fn process_slice(&mut self, slice: &[Box<String>]) {
if slice.is_empty() {
return;
}
let mut builder = Builder::new_default();
let msg = builder.init_root::<crate::console_backend_capnp::message::Builder>();
let mut log_update = msg.init_log_append();
log_update.set_log_level(&self.shared_state.log_level().to_string());
let mut entries = log_update.init_entries(slice.len() as u32);
for (idx, item) in slice.iter().enumerate() {
let mut entry = entries.reborrow().get(idx as u32);
entry.set_line(item);
}
self.client_sender
.send_data(serialize_capnproto_builder(builder));
if let Some(ref mut f) = self.log_file {
for item in slice {
let packet = serde_json::from_str(item).expect(CONSOLE_LOG_JSON_TO_STRING_FAILURE);
write_packet(packet, f);
}
}
}
fn flush(&mut self) {
if let Some(ref mut f) = self.log_file {
let _ = f.flush();
}
}
}
#[derive(Serialize, Deserialize)]
struct ConsoleLogPacket<'a> {
level: &'a str,
timestamp: &'a str,
msg: &'a str,
}
enum SbpMsgLevel {
Emergency = 0,
Alert = 1,
Critical = 2,
Error = 3,
Warn = 4,
Notice = 5,
Info = 6,
Debug = 7,
Other,
}
impl From<u8> for SbpMsgLevel {
fn from(orig: u8) -> Self {
match orig {
0 => SbpMsgLevel::Emergency,
1 => SbpMsgLevel::Alert,
2 => SbpMsgLevel::Critical,
3 => SbpMsgLevel::Error,
4 => SbpMsgLevel::Warn,
5 => SbpMsgLevel::Notice,
6 => SbpMsgLevel::Info,
7 => SbpMsgLevel::Debug,
_ => SbpMsgLevel::Other,
}
}
}
fn init_log_file(shared_state: &SharedState) -> Option<File> {
let filepath = shared_state
.log_filename()
.map(|f| shared_state.logging_directory().join(f));
filepath.and_then(|p| match File::create(&p) {
Ok(f) => Some(f),
Err(e) => {
error!(
"issue creating console log file, {}, error, {}",
p.display(),
e
);
None
}
})
}
fn write_packet(packet: ConsoleLogPacket, f: &mut File) {
// Min one space plus the longest log level
const MIN_SPACES: usize = "CONSOLE".len() + 1;
let spaces = " ".repeat(MIN_SPACES - packet.level.len());
let _ = writeln!(
f,
"{timestamp} {level}{spaces}{msg}",
timestamp = packet.timestamp,
level = packet.level,
msg = packet.msg,
);
}
// Custom formatting of `log::Record` to account for SbpLog values
fn splitable_log_formatter(record: &Record) -> String {
let level = if record.target() != DEVICE {
CONSOLE
} else {
record.level().as_str()
};
let timestamp = Local::now().format("%b %d %Y %H:%M:%S").to_string();
let mut msg = record.args().to_string();
msg.retain(|c| c != '\0');
let msg_packet = ConsoleLogPacket {
level,
timestamp: ×tamp,
msg: &msg,
};
serde_json::to_string(&msg_packet).expect(CONSOLE_LOG_JSON_TO_STRING_FAILURE)
}