//-*****************************************************************************

//

// Copyright (c) 2009-2013,

//  Sony Pictures Imageworks, Inc. and

//  Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.

//

// All rights reserved.

//

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

// *       Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

// *       Redistributions in binary form must reproduce the above

// copyright notice, this list of conditions and the following disclaimer

// in the documentation and/or other materials provided with the

// distribution.

// *       Neither the name of Sony Pictures Imageworks, nor

// Industrial Light & Magic nor the names of their contributors may be used

// to endorse or promote products derived from this software without specific

// prior written permission.

//

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

//-*****************************************************************************

#ifndef Alembic_Abc_ErrorHandler_h

#define Alembic_Abc_ErrorHandler_h

#include <Alembic/Util/Export.h>

#include <Alembic/Abc/Foundation.h>

namespace Alembic {

namespace Abc {

namespace ALEMBIC_VERSION_NS {

//-*****************************************************************************

class ALEMBIC_EXPORT ErrorHandler

{

public:

    enum Policy

    {

        kQuietNoopPolicy,

        kNoisyNoopPolicy,

        kThrowPolicy

    };

    enum UnknownExceptionFlag

    {

        kUnknownException

    };

    ErrorHandler()

      : m_policy( kThrowPolicy )

      , m_errorLog( "" ) {}

    ErrorHandler( Policy iPolicy )

      : m_policy( iPolicy )

      , m_errorLog( "" ) {}

    //! Default copy constructor

    //! Default assignment operator

    void operator()( std::exception &iExc,

                     const std::string &iCtx = "" );

    void operator()( const std::string &iErrMsg,

                     const std::string &iCtx = "" );

    void operator()( UnknownExceptionFlag iUef,

                     const std::string &iCtx = "" );

    Policy getPolicy() const { return m_policy; }

    void setPolicy( Policy iPolicy ) { m_policy = iPolicy; }

    const std::string getErrorLog() const { return m_errorLog; }

    bool valid() const { return ( m_errorLog == "" ); }

    void clear() { m_errorLog = ""; }

    class Context

    {

    public:

        Context( ErrorHandler &iEhnd, const char *iCtxMsg )

          : m_handler( iEhnd ),

            m_message( iCtxMsg ) {}

        void operator()( std::exception &iExc )

        {

            m_handler( iExc, m_message );

        }

        void operator()( const std::string &iMsg )

        {

            m_handler( iMsg, m_message );

        }

        void operator()( UnknownExceptionFlag iUef )

        {

            m_handler( iUef, m_message );

        }

    private:

        const Context& operator= (const Context&);

        ErrorHandler &m_handler;

        const char *m_message;

    };

private:

    void handleIt( const std::string &iErr );

    Policy m_policy;

    std::string m_errorLog;

};

//-*****************************************************************************

//-*****************************************************************************

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::ArchiveWriterPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::ObjectWriterPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::CompoundPropertyWriterPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::ScalarPropertyWriterPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::ArrayPropertyWriterPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

//-*****************************************************************************

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::ArchiveReaderPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::ObjectReaderPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::CompoundPropertyReaderPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::ScalarPropertyReaderPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

inline ErrorHandler::Policy

GetErrorHandlerPolicy( AbcA::ArrayPropertyReaderPtr /* iClass */ )

{ return ErrorHandler::kThrowPolicy; }

//-*****************************************************************************

#define ALEMBIC_ABC_SAFE_CALL_BEGIN( CONTEXT )              \

do                                                              \

{                                                               \

    ::Alembic::Abc::ErrorHandler::Context                   \

        __err( this->getErrorHandler(), ( CONTEXT ) );          \

    try                                                         \

    {

//-*****************************************************************************

#define ALEMBIC_ABC_SAFE_CALL_END_RESET()                   \

    }                                                           \

    catch ( std::exception &exc )                               \

    {                                                           \

        this->reset();                                          \

        __err( exc );                                           \

    }                                                           \

    catch ( ... )                                               \

    {                                                           \

        this->reset();                                          \

        __err( ::Alembic::Abc::                             \

             ErrorHandler::kUnknownException );                 \

    }                                                           \

}                                                               \

while( 0 )

//-*****************************************************************************

#define ALEMBIC_ABC_SAFE_CALL_END()                         \

    }                                                           \

    catch ( std::exception &exc )                               \

    {                                                           \

        __err( exc );                                           \

    }                                                           \

    catch ( ... )                                               \

    {                                                           \

        __err( ::Alembic::Abc::                             \

             ErrorHandler::kUnknownException );                 \

    }                                                           \

}                                                               \

while( 0 )

} // End namespace ALEMBIC_VERSION_NS

using namespace ALEMBIC_VERSION_NS;

} // End namespace Abc

} // End namespace Alembic

#endif