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use crate::log_specification::LogSpecification;
use crate::primary_writer::PrimaryWriter;
use crate::writers::LogWriter;
use std::collections::HashMap;
use std::sync::{Arc, RwLock};
#[derive(Clone)]
pub struct ReconfigurationHandle {
spec: Arc<RwLock<LogSpecification>>,
spec_stack: Vec<LogSpecification>,
primary_writer: Arc<PrimaryWriter>,
other_writers: Arc<HashMap<String, Box<dyn LogWriter>>>,
}
impl ReconfigurationHandle {
pub(crate) fn new(
spec: Arc<RwLock<LogSpecification>>,
primary_writer: Arc<PrimaryWriter>,
other_writers: Arc<HashMap<String, Box<dyn LogWriter>>>,
) -> Self {
Self {
spec,
spec_stack: Vec::default(),
primary_writer,
other_writers,
}
}
#[cfg(feature = "specfile_without_notification")]
pub(crate) fn current_spec(&self) -> Arc<RwLock<LogSpecification>> {
Arc::clone(&self.spec)
}
pub(crate) fn reconfigure(&self, mut max_level: log::LevelFilter) {
for w in self.other_writers.as_ref().values() {
max_level = std::cmp::max(max_level, w.max_log_level());
}
log::set_max_level(max_level);
}
pub fn set_new_spec(&mut self, new_spec: LogSpecification) {
let max_level = new_spec.max_level();
self.spec.write().unwrap().update_from(new_spec);
self.reconfigure(max_level);
}
pub fn parse_new_spec(&mut self, spec: &str) {
self.set_new_spec(LogSpecification::parse(spec).unwrap_or_else(|e| {
eprintln!(
"[flexi_logger] ReconfigurationHandle::parse_new_spec(): failed with {}",
e
);
LogSpecification::off()
}))
}
pub fn push_temp_spec(&mut self, new_spec: LogSpecification) {
self.spec_stack
.push(self.spec.read().unwrap().clone());
self.set_new_spec(new_spec);
}
pub fn parse_and_push_temp_spec(&mut self, new_spec: &str) {
self.spec_stack
.push(self.spec.read().unwrap().clone());
self.set_new_spec(LogSpecification::parse(new_spec).unwrap_or_else(|e| {
eprintln!(
"[flexi_logger] ReconfigurationHandle::parse_new_spec(): failed with {}, \
falling back to empty log spec",
e
);
LogSpecification::off()
}));
}
pub fn pop_temp_spec(&mut self) {
if let Some(previous_spec) = self.spec_stack.pop() {
self.set_new_spec(previous_spec);
}
}
pub fn shutdown(&self) {
if let PrimaryWriter::Multi(writer) = &*self.primary_writer {
writer.shutdown();
}
for writer in self.other_writers.values() {
writer.shutdown();
}
}
#[doc(hidden)]
pub fn validate_logs(&self, expected: &[(&'static str, &'static str, &'static str)]) {
self.primary_writer.validate_logs(expected)
}
}