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1   /**
2    * LOGBack: the reliable, fast and flexible logging library for Java.
3    *
4    * Copyright (C) 1999-2006, QOS.ch
5    *
6    * This library is free software, you can redistribute it and/or
7    * modify it under the terms of the GNU Lesser General Public License as
8    * published by the Free Software Foundation.
9    */
10  package ch.qos.logback.classic.pattern;
11  
12  import ch.qos.logback.classic.spi.CallerData;
13  import ch.qos.logback.classic.spi.LoggingEvent;
14  
15  public class LineOfCallerConverter extends ClassicConverter {
16  
17    public String convert(LoggingEvent le) {
18      CallerData[] cda = le.getCallerData();
19      if (cda != null && cda.length > 0) {
20        return Integer.toString(cda[0].getLineNumber());
21      } else {
22        return CallerData.NA;
23      }
24    }
25  
26  }