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#ifndef _qpid_ExceptionHolder_h
#define _qpid_ExceptionHolder_h
/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* 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.
*
*/
#include <Exception.h>
#include <boost/shared_ptr.hpp>
namespace qpid {
/**
* Holder for a heap-allocated exc eption that can be stack allocated
* and thrown safely.
*
* Basically this is a shared_ptr with the Exception functions added
* so the catcher need not be aware that it is a pointer rather than a
* reference.
*
* shared_ptr is chosen over auto_ptr because it has normal
* copy semantics.
*/
class ExceptionHolder : public Exception, public boost::shared_ptr<Exception>
{
public:
typedef boost::shared_ptr<Exception> shared_ptr;
ExceptionHolder() throw() {}
ExceptionHolder(Exception* p) throw() : shared_ptr(p) {}
ExceptionHolder(shared_ptr p) throw() : shared_ptr(p) {}
ExceptionHolder(const Exception& e) throw() : shared_ptr(e.clone()) {}
ExceptionHolder(const std::exception& e);
~ExceptionHolder() throw() {}
const char* what() const throw() { return (*this)->what(); }
std::string toString() const throw() { return (*this)->toString(); }
virtual Exception* clone() const throw() { return (*this)->clone(); }
virtual void throwSelf() const { (*this)->throwSelf(); }
};
} // namespace qpid
#endif /*!_qpid_ExceptionHolder_h*/
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