/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.classic.net;
  
  import java.io.Serializable;
  
  import ch.qos.logback.classic.spi.ILoggingEvent;
  import ch.qos.logback.classic.spi.LoggingEvent;
  import ch.qos.logback.classic.spi.LoggingEventVO;
  import ch.qos.logback.core.spi.PreSerializationTransformer;
  
  public class LoggingEventPreSerializationTransformer implements
      PreSerializationTransformer<ILoggingEvent> {
  
    public Serializable transform(ILoggingEvent event) {
      if(event == null) {
        return null;
      }
      if (event instanceof LoggingEvent) {
        return LoggingEventVO.build(event);
      } else if (event instanceof LoggingEventVO) {
        return (LoggingEventVO)  event;
      } else {
        throw new IllegalArgumentException("Unsupported type "+event.getClass().getName());
      }
    }
  
  }