use std::{borrow::Cow, sync::Arc, time::SystemTime};
use crate::{
logs::{AnyValue, LogRecord, Logger, LoggerProvider, Severity},
InstrumentationLibrary, Key, KeyValue,
};
#[derive(Clone, Debug, Default)]
pub struct NoopLoggerProvider(());
impl NoopLoggerProvider {
pub fn new() -> Self {
NoopLoggerProvider(())
}
}
impl LoggerProvider for NoopLoggerProvider {
type Logger = NoopLogger;
fn library_logger(&self, _library: Arc<InstrumentationLibrary>) -> Self::Logger {
NoopLogger(())
}
fn versioned_logger(
&self,
_name: impl Into<Cow<'static, str>>,
_version: Option<Cow<'static, str>>,
_schema_url: Option<Cow<'static, str>>,
_attributes: Option<Vec<KeyValue>>,
) -> Self::Logger {
NoopLogger(())
}
}
#[derive(Debug, Clone, Default)]
pub struct NoopLogRecord;
impl LogRecord for NoopLogRecord {
#[inline]
fn set_event_name<T>(&mut self, _name: T)
where
T: Into<Cow<'static, str>>,
{
}
#[inline]
fn set_timestamp(&mut self, _timestamp: SystemTime) {}
#[inline]
fn set_observed_timestamp(&mut self, _timestamp: SystemTime) {}
#[inline]
fn set_severity_text(&mut self, _text: Cow<'static, str>) {}
#[inline]
fn set_severity_number(&mut self, _number: Severity) {}
#[inline]
fn set_body(&mut self, _body: AnyValue) {}
#[inline]
fn add_attributes<I, K, V>(&mut self, _attributes: I)
where
I: IntoIterator<Item = (K, V)>,
K: Into<Key>,
V: Into<AnyValue>,
{
}
#[inline]
fn add_attribute<K, V>(&mut self, _key: K, _value: V)
where
K: Into<Key>,
V: Into<AnyValue>,
{
}
}
#[derive(Clone, Debug)]
pub struct NoopLogger(());
impl Logger for NoopLogger {
type LogRecord = NoopLogRecord;
fn create_log_record(&self) -> Self::LogRecord {
NoopLogRecord {}
}
fn emit(&self, _record: Self::LogRecord) {}
#[cfg(feature = "logs_level_enabled")]
fn event_enabled(&self, _level: super::Severity, _target: &str) -> bool {
false
}
}