How to configure logback.xml for custum log formatter

Question

import org.apache.log4j.PatternLayout;
import org.apache.log4j.spi.LoggingEvent;

public class Syslog4jPatternlayout extends PatternLayout {

    public String format(LoggingEvent event) {
        return "";
    } 
}

How to configure the logback.xml file to use this formatter?

Answer 1

I think you should probably use logback LayoutBase

public class Syslog4jPatternlayout extends LayoutBase<ILoggingEvent> {

  public String doLayout(ILoggingEvent event) {
      return "";
  }

}

And in logback.xml

<appender name="appender1" class="your appender">
    <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
      <layout class="com.kp.Syslog4jPatternlayout" />
    </encoder>
  </appender>