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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17
    18  package org.apache.commons.logging;
    19
    20
    21  /**
    22   * <p>An exception that is thrown only if a suitable <code>LogFactory</code>
    23   * or <code>Log</code> instance cannot be created by the corresponding
    24   * factory methods.</p>
    25   *
    26   * @author Craig R. McClanahan
    27   * @version $Revision: 424107 $ $Date: 2006-07-21 01:15:42 +0200 (fr, 21 jul 2006) $
    28   */
    29
    30  public class LogConfigurationException extends RuntimeException {
    31
    32
    33      /**
    34       * Construct a new exception with <code>null</code> as its detail message.
    35       */
    36      public LogConfigurationException() {
    37
    38          super();
    39
    40      }
    41
    42
    43      /**
    44       * Construct a new exception with the specified detail message.
    45       *
    46       * @param message The detail message
    47       */
    48      public LogConfigurationException(String message) {
    49
    50          super(message);
    51
    52      }
    53
    54
    55      /**
    56       * Construct a new exception with the specified cause and a derived
    57       * detail message.
    58       *
    59       * @param cause The underlying cause
    60       */
    61      public LogConfigurationException(Throwable cause) {
    62
    63          this((cause == null) ? null : cause.toString(), cause);
    64
    65      }
    66
    67
    68      /**
    69       * Construct a new exception with the specified detail message and cause.
    70       *
    71       * @param message The detail message
    72       * @param cause The underlying cause
    73       */
    74      public LogConfigurationException(String message, Throwable cause) {
    75
    76          super(message + " (Caused by " + cause + ")");
    77          this.cause = cause; // Two-argument version requires JDK 1.4 or later
    78
    79      }
    80
    81
    82      /**
    83       * The underlying cause of this exception.
    84       */
    85      protected Throwable cause = null;
    86
    87
    88      /**
    89       * Return the underlying cause of this exception (if any).
    90       */
    91      public Throwable getCause() {
    92
    93          return (this.cause);
    94
    95      }
    96
    97
    98  }