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use log;
use config::Config;
use protocol::{Message, SystemMsg};
use actor::{ActorRef, SysTell, BoxActorProd};
#[derive(Clone)]
pub struct Logger<Msg: Message> {
level: log::Level,
actor: ActorRef<Msg>,
}
impl<Msg> Logger<Msg>
where Msg: Message
{
pub fn init(level: log::Level,
actor: ActorRef<Msg>) -> Self {
let logger = Logger {
level,
actor
};
let _ = log::set_boxed_logger(Box::new(logger.clone()));
log::set_max_level(level.to_level_filter());
logger
}
}
impl<Msg> log::Log for Logger<Msg>
where Msg: Message
{
fn enabled(&self, metadata: &log::Metadata) -> bool {
metadata.level() <= self.level
}
fn log(&self, record: &log::Record) {
self.actor.sys_tell(SystemMsg::Log(LogEntry::from(record)), None);
}
fn flush(&self) {
}
}
pub trait LoggerProps {
type Msg: Message;
fn props(config: &Config) -> BoxActorProd<Self::Msg>;
}
#[derive(Clone, Debug)]
pub struct LogEntry {
pub level: log::Level,
pub module: Option<String>,
pub body: String,
}
impl<'a> From<&'a log::Record<'a>> for LogEntry {
fn from(record: &log::Record) -> Self {
LogEntry {
level: record.level(),
module: record.module_path().map(|m| m.to_string()),
body: format!("{}", record.args())
}
}
}
pub trait DeadLetterProps {
type Msg: Message;
fn props(dl: ActorRef<Self::Msg>) -> BoxActorProd<Self::Msg>;
}