Trait Handler

pub trait Handler:
    Send
    + Sync
    + Debug {
    // Required methods
    fn level(&self) -> LogLevel;
    fn set_level(&mut self, level: LogLevel);
    fn is_enabled(&self) -> bool;
    fn set_enabled(&mut self, enabled: bool);
    fn formatter(&self) -> &Formatter;
    fn set_formatter(&mut self, formatter: Formatter);
    fn set_filter(&mut self, filter: Option<HandlerFilter>);
    fn filter(&self) -> Option<&HandlerFilter>;
    fn handle(&self, record: &Record) -> Result<(), String>;

    // Provided methods
    fn handle_batch(&self, records: &[Record]) -> Result<(), String> { ... }
    fn init(&mut self) -> Result<(), String> { ... }
    fn flush(&self) -> Result<(), String> { ... }
    fn shutdown(&mut self) -> Result<(), String> { ... }
}

A trait for handlers that handle log records

Required Methods

fn level(&self) -> LogLevel

Get the log level

fn set_level(&mut self, level: LogLevel)

Set the log level

fn is_enabled(&self) -> bool

Check if the handler is enabled

fn set_enabled(&mut self, enabled: bool)

Set whether the handler is enabled

fn formatter(&self) -> &Formatter

Get the formatter

fn set_formatter(&mut self, formatter: Formatter)

Set the formatter

fn set_filter(&mut self, filter: Option<HandlerFilter>)

Set a filter closure for this handler (optional, default: no filter)

fn filter(&self) -> Option<&HandlerFilter>

Get the filter closure for this handler (optional)

fn handle(&self, record: &Record) -> Result<(), String>

Handle a log record

Provided Methods

fn handle_batch(&self, records: &[Record]) -> Result<(), String>

Handle a batch of log records (default: call handle for each)

fn init(&mut self) -> Result<(), String>

Lifecycle: initialize the handler (default: no-op)

fn flush(&self) -> Result<(), String>

Lifecycle: flush the handler (default: no-op)

fn shutdown(&mut self) -> Result<(), String>

Lifecycle: shutdown the handler (default: no-op)

Implementors

impl Handler for ConsoleHandler

impl Handler for FileHandler

impl Handler for NetworkHandler

impl Handler for BaseHandler

impl Handler for NullHandler