/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2015, 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.spi;

import java.util.Map;

import org.slf4j.Marker;

import ch.qos.logback.classic.Level;
import ch.qos.logback.core.spi.DeferredProcessingAware;

/**
 * The central interface in logback-classic. In a nutshell, logback-classic is
 * nothing more than a processing chain built around this interface.
 * 
 * @author Ceki G&uuml;lc&uuml;
 * @since 0.9.16
 */
public interface ILoggingEvent extends DeferredProcessingAware {

  String getThreadName();

  Level getLevel();

  String getMessage();

  Object[] getArgumentArray();

  String getFormattedMessage();

  String getLoggerName();

  LoggerContextVO getLoggerContextVO();

  IThrowableProxy getThrowableProxy();

  /**
   * Return caller data associated with this event. Note that calling this event
   * may trigger the computation of caller data.
   * 
   * @return the caller data associated with this event.
   * 
   * @see #hasCallerData()
   */
  StackTraceElement[] getCallerData();

  /**
   * If this event has caller data, then true is returned. Otherwise the
   * returned value is null.
   * 
   * <p>Logback components wishing to use caller data if available without
   * causing it to be computed can invoke this method before invoking
   * {@link #getCallerData()}.
   * 
   * @return whether this event has caller data
   */
  boolean hasCallerData();

  Marker getMarker();

  /**
   * Returns the MDC map. The returned value can be an empty map but not null.
   */
  Map<String, String> getMDCPropertyMap();

  /**
   * Synonym for [@link #getMDCPropertyMap}.
   * @deprecated  Replaced by [@link #getMDCPropertyMap}
   */
  Map<String, String> getMdc();
  long getTimeStamp();

  void prepareForDeferredProcessing();

}
