LogListener (Camel :: API 3.20.9 API)

```
public interface LogListener
```
An event listener SPI for logging. Listeners are registered into org.apache.camel.processor.LogProcessor and org.apache.camel.processor.CamelLogProcessor so that the logging events are delivered for both of Log Component and Log EIP.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`onLog(Exchange exchange, CamelLogger camelLogger, String message)`	Invoked right before Log component or Log EIP logs.

- Method Detail
  - onLog
```
String onLog(Exchange exchange,
             CamelLogger camelLogger,
             String message)
```
    Invoked right before Log component or Log EIP logs. Note that CamelLogger holds the LoggingLevel and Marker. The listener can check CamelLogger.getLevel() to see in which log level this is going to be logged.
    
    Parameters:
    
    exchange - camel exchange
    
    camelLogger - CamelLogger
    
    message - log message
    
    Returns:
    
    log message, possibly enriched by the listener