Module flexi_logger::filter [−][src]
Expand description
This module contains two traits which allow adding a stateful filter
using Logger::filter
.
Example
use flexi_logger::{ filter::{LogLineFilter, LogLineWriter}, DeferredNow, FlexiLoggerError, }; pub struct BarsOnly; impl LogLineFilter for BarsOnly { fn write( &self, now: &mut DeferredNow, record: &log::Record, log_line_writer: &dyn LogLineWriter, ) -> std::io::Result<()> { if record.args().to_string().contains("bar") { log_line_writer.write(now, record)?; } Ok(()) } } fn main() -> Result<(), FlexiLoggerError> { flexi_logger::Logger::try_with_str("info")? .filter(Box::new(BarsOnly)) .start()?; log::info!("barista"); log::info!("foo"); // will be swallowed by the filter log::info!("bar"); log::info!("gaga"); // will be swallowed by the filter Ok(()) }
Traits
LogLineFilter | Trait of the filter object. |
LogLineWriter | Write out a single log line |