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