package org.apache.maven.wagon;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you 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.

  */

 /**

  * Root class for all exception in Wagon API

  *

  * @author <a href="michal.maczka@dimatics.com">Michal Maczka</a>

  * @version $Id: WagonException.java 682051 2008-08-02 21:29:38Z hboutemy $

  */

 public abstract class WagonException

     extends Exception

 {

     /**

      * the throwable that caused this exception to get thrown

      */

     private Throwable cause;

     /**

      * Constructs a new WagonException with the specified detail message.

      * The cause is not initialized, and may subsequently be initialized by a call to initCause

      *

      * @param message - the detail message (which is saved for later retrieval by the getMessage() method).

      * @param cause   - the cause (which is saved for later retrieval by the getCause() method).

      *                (A null value is permitted, and indicates that the cause is nonexistent or unknown.)

      */

     public WagonException( final String message, final Throwable cause )

     {

         super( message );

         initCause( cause );

     }

     /**

      * Constructs a new WagonException with the specified detail message and cause.

      *

      * @param message - the detail message (which is saved for later retrieval by the getMessage() method).

      */

     public WagonException( final String message )

     {

         super( message );

     }

     /**

      * Returns the cause of this throwable or null if the cause is nonexistent or unknown.

      * (The cause is the throwable that caused this exception to get thrown.)

      *

      * @return the cause of this exception or null if the cause is nonexistent or unknown.

      */

     public Throwable getCause()

     {

 //        try

 //        {

 //           Class clazz = getClass().getSuperclass();

 //           

 //           Method method = clazz.getMethod( "gatCause" , null );

 //           

 //           Throwable retValue = (Throwable) method.invoke( this, null );

 //         return retValue;

 //        }   

 //        catch( Exception e)

 //        {

 //        

 //        }

         return cause;

     }

     /**

      * Initializes the cause of this throwable to the specified value.

      * (The cause is the throwable that caused this throwable to get thrown.)

      * This method can be called at most once.

      * It is generally called from within the constructor, or immediately after creating the throwable.

      * If this throwable was created with WagonException(Throwable) or WagonException(String,Throwable),

      * this method cannot be called even once.

      *

      * @return a reference to this Throwable instance.

      */

     public Throwable initCause( final Throwable cause )

     {

 //        try

 //        {

 //           Class clazz = getClass().getSuperclass();

 //           Class[] parameterTypes = new Class[1];

 //           parameterTypes[0] = Throwable.class;

 //           Method method = clazz.getMethod( "initCause" , parameterTypes);

 //           Object[] params = { cause };

 //           method.invoke( this, params );

 //        }   

 //        catch( Exception e)

 //        {

 //        

 //        }        

         this.cause = cause;

         return this;

     }

 }