1 /* 2 * Copyright 2001-2004 The Apache Software Foundation. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package org.apache.commons.logging; 18 19 20 /** 21 * <p>An exception that is thrown only if a suitable <code>LogFactory</code> 22 * or <code>Log</code> instance cannot be created by the corresponding 23 * factory methods.</p> 24 * 25 * @author Craig R. McClanahan 26 * @version $Revision: 155426 $ $Date: 2005-02-26 13:10:49 +0000 (Sat, 26 Feb 2005) $ 27 */ 28 29 public class LogConfigurationException extends RuntimeException { 30 31 32 /** 33 * Construct a new exception with <code>null</code> as its detail message. 34 */ 35 public LogConfigurationException() { 36 37 super(); 38 39 } 40 41 42 /** 43 * Construct a new exception with the specified detail message. 44 * 45 * @param message The detail message 46 */ 47 public LogConfigurationException(String message) { 48 49 super(message); 50 51 } 52 53 54 /** 55 * Construct a new exception with the specified cause and a derived 56 * detail message. 57 * 58 * @param cause The underlying cause 59 */ 60 public LogConfigurationException(Throwable cause) { 61 62 this((cause == null) ? null : cause.toString(), cause); 63 64 } 65 66 67 /** 68 * Construct a new exception with the specified detail message and cause. 69 * 70 * @param message The detail message 71 * @param cause The underlying cause 72 */ 73 public LogConfigurationException(String message, Throwable cause) { 74 75 super(message + " (Caused by " + cause + ")"); 76 this.cause = cause; // Two-argument version requires JDK 1.4 or later 77 78 } 79 80 81 /** 82 * The underlying cause of this exception. 83 */ 84 protected Throwable cause = null; 85 86 87 /** 88 * Return the underlying cause of this exception (if any). 89 */ 90 public Throwable getCause() { 91 92 return (this.cause); 93 94 } 95 96 97 } 98
