/*
 * 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.
 */
#ifndef ACTIVEMQ_EXCEPTIONS_NULLPOINTERENTEXCEPTION_H_
#define ACTIVEMQ_EXCEPTIONS_NULLPOINTERENTEXCEPTION_H_

#include <activemq/exceptions/ActiveMQException.h>

namespace activemq{
namespace exceptions{

    /*
     * Thrown when an error occurs that involves a pointer being NULL
     */
    class NullPointerException : public ActiveMQException
    {
    public:

        /**
         * Default Constructor
         */
        NullPointerException() throw() {};

        /**
         * Conversion Constructor from some other ActiveMQException
         * @param An exception that should become this type of Exception
         */
        NullPointerException( const ActiveMQException& ex ) throw()
        : ActiveMQException()
        {
            *(ActiveMQException*)this = ex;
        }

        /**
         * Copy Constructor
         */
        NullPointerException(const NullPointerException& ex) throw()
        : ActiveMQException()
        {
            *(ActiveMQException*)this = ex;
        }

        /**
         * Constructor - Initializes the file name and line number where
         * this message occured.  Sets the message to report, using an 
         * optional list of arguments to parse into the message
         * @param file name where exception occurs
         * @param line number where the exception occurred.
         * @param message to report
         * @param list of primitives that are formatted into the message
         */
        NullPointerException( const char* file, 
                              const int lineNumber,
                              const char* msg, ... ) throw()
        : ActiveMQException()
        {
            va_list vargs;
            va_start( vargs, msg );
            buildMessage( msg, vargs );
            
            // Set the first mark for this exception.
            setMark( file, lineNumber );
        }

        /**
         * Clones this exception.  This is useful for cases where you need
         * to preserve the type of the original exception as well as the message.
         * All subclasses should override.
         */
        virtual ActiveMQException* clone() const{
            return new NullPointerException( *this );
        }

        virtual ~NullPointerException() throw() {}

    };

}}

#endif /*ACTIVEMQ_EXCEPTIONS_NULLPOINTERENTEXCEPTION_H_*/