LogConfigurationException.java

/*
 * Copyright 2001-2004 The Apache Software Foundation.
 * Copyright 2005 Niclas Hedhman
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/* NOTE!!!!  This is NOT the original Jakarta Commons Logging, but an adaption
   of its interface so that this Log4J OSGi bundle can export the JCL interface
   but redirect permananently to the Log4J implementation
*/

package org.apache.commons.logging;

/**
 * <p>An exception that is thrown only if a suitable <code>LogFactory</code>
 * or <code>Log</code> instance cannot be created by the corresponding
 * factory methods.</p>
 *
 * @author Craig R. McClanahan
 * @version $Revision: 1.6 $ $Date: 2004/02/28 21:46:45 $
 */
public class LogConfigurationException extends RuntimeException
{

    private static final long serialVersionUID = 1L;

    /**
     * Construct a new exception with <code>null</code> as its detail message.
     */
    public LogConfigurationException()
    {
        super();
    }

    /**
     * Construct a new exception with the specified detail message.
     *
     * @param message The detail message
     */
    public LogConfigurationException( String message )
    {
        super( message );
    }

    /**
     * Construct a new exception with the specified cause and a derived
     * detail message.
     *
     * @param cause The underlying cause
     */
    public LogConfigurationException( Throwable cause )
    {
        this( ( cause == null ) ? null : cause.toString(), cause );
    }

    /**
     * Construct a new exception with the specified detail message and cause.
     *
     * @param message The detail message
     * @param cause   The underlying cause
     */
    public LogConfigurationException( String message, Throwable cause )
    {
        super( message + " (Caused by " + cause + ")" );
        this.cause = cause; // Two-argument version requires JDK 1.4 or later
    }

    /**
     * The underlying cause of this exception.
     */
    protected Throwable cause = null;

    /**
     * Return the underlying cause of this exception (if any).
     */
    public Throwable getCause()
    {
        return ( this.cause );
    }
}