1   /*
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2022, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  
15  package ch.qos.logback.classic.pattern;
16  
17  import ch.qos.logback.classic.spi.ILoggingEvent;
18  import ch.qos.logback.core.pattern.DynamicConverter;
19  
20  public class ExceptionalConverter2 extends DynamicConverter<ILoggingEvent> {
21  
22      public String convert(ILoggingEvent iLoggingEvent) {
23          if (!isStarted()) {
24              throw new IllegalStateException("this converter must be started before use");
25          }
26          return "";
27      }
28  }
29