/**
 * 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.pattern;

import ch.qos.logback.classic.spi.CallerData;
import ch.qos.logback.classic.spi.ILoggingEvent;

public class LineOfCallerConverter extends ClassicConverter {

  public String convert(ILoggingEvent le) {
    StackTraceElement[] cda = le.getCallerData();
    if (cda != null && cda.length > 0) {
      return Integer.toString(cda[0].getLineNumber());
    } else {
      return CallerData.NA;
    }
  }

}
