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path: root/connectivity/source/commontools/sqlerror.cxx
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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: sqlerror.cxx,v $
 * $Revision: 1.4 $
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_connectivity.hxx"

#include "connectivity/sqlerror.hxx"

/** === begin UNO includes === **/
#include <com/sun/star/sdbc/SQLException.hpp>
/** === end UNO includes === **/

#include <comphelper/officeresourcebundle.hxx>
#include <cppuhelper/exc_hlp.hxx>
#include <rtl/ustrbuf.hxx>

#include <string.h>

//........................................................................
namespace connectivity
{
//........................................................................

    /** === begin UNO using === **/
    using ::com::sun::star::uno::Reference;
    using ::com::sun::star::uno::UNO_QUERY;
    using ::com::sun::star::uno::UNO_QUERY_THROW;
    using ::com::sun::star::uno::Exception;
    using ::com::sun::star::uno::RuntimeException;
    using ::com::sun::star::uno::Any;
    using ::com::sun::star::uno::makeAny;
    using ::com::sun::star::uno::XInterface;
    using ::com::sun::star::sdbc::SQLException;
    using ::com::sun::star::uno::Type;
    /** === end UNO using === **/

    //using SQLError::ParamValue; // GCC (unxlngi6) does not like this
    namespace
    {
        typedef SQLError::ParamValue ParamValue;
    }

    //====================================================================
    //= SQLError_Impl - declaration
    //====================================================================
    class SQLError_Impl
    {
    public:
        SQLError_Impl( const ::comphelper::ComponentContext& _rContext );
        ~SQLError_Impl();

        // versions of the public SQLError methods which are just delegated to this impl-class
        static const ::rtl::OUString& getMessagePrefix();
        ::rtl::OUString     getErrorMessage( const ErrorCondition _eCondition, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 );
        ::rtl::OUString     getSQLState( const ErrorCondition _eCondition );
        static ErrorCode    getErrorCode( const ErrorCondition _eCondition );
        void                raiseException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 );
        void                raiseException( const ErrorCondition _eCondition, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 );
        void                raiseTypedException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext, const Type& _rExceptionType, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 );
        SQLException        getSQLException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 );

    private:
        /// returns the basic error message associated with the given error condition, without any parameter replacements
        ::rtl::OUString
                impl_getErrorMessage( const ErrorCondition& _eCondition );

        /// returns the SQLState associated with the given error condition
        ::rtl::OUString
                impl_getSQLState( const ErrorCondition& _eCondition );

        /// returns an SQLException describing the given error condition
        SQLException
                impl_buildSQLException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext,
                    const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 );

        /// initializes our resource bundle
        bool    impl_initResources();

    private:
        ::osl::Mutex                                            m_aMutex;
        ::comphelper::ComponentContext                          m_aContext;
        ::std::auto_ptr< ::comphelper::OfficeResourceBundle >   m_pResources;
        bool                                                    m_bAttemptedInit;
    };

    //====================================================================
    //= SQLError_Impl - implementation
    //====================================================================
    //--------------------------------------------------------------------
    SQLError_Impl::SQLError_Impl( const ::comphelper::ComponentContext& _rContext )
        :m_aContext( _rContext )
        ,m_pResources( )
        ,m_bAttemptedInit( false )
    {
    }

    //--------------------------------------------------------------------
    SQLError_Impl::~SQLError_Impl()
    {
    }

    //--------------------------------------------------------------------
    const ::rtl::OUString& SQLError_Impl::getMessagePrefix()
    {
        static ::rtl::OUString s_sMessagePrefix( RTL_CONSTASCII_USTRINGPARAM( "[OOoBase]" ) );
        return s_sMessagePrefix;
    }

    //--------------------------------------------------------------------
    namespace
    {
        //................................................................
        /** substitutes a given placeholder in the given message with the given value
        */
        void    lcl_substitutePlaceholder( ::rtl::OUString& _rMessage, const sal_Char* _pPlaceholder, ParamValue _rParamValue )
        {
            size_t nPlaceholderLen( strlen( _pPlaceholder ) );
            sal_Int32 nIndex = _rMessage.indexOfAsciiL( _pPlaceholder, nPlaceholderLen );

            bool bHasPlaceholder = ( nIndex != -1 );
            bool bWantsPlaceholder = _rParamValue.is();
            OSL_ENSURE( bHasPlaceholder == bWantsPlaceholder, "lcl_substitutePlaceholder: placeholder where none is expected, or no placeholder where one is needed!" );

            if ( bHasPlaceholder && bWantsPlaceholder )
                _rMessage = _rMessage.replaceAt( nIndex, nPlaceholderLen, *_rParamValue );
        }

        //................................................................
        sal_Int32   lcl_getResourceID( const ErrorCondition _eCondition, bool _bSQLState )
        {
            return  256
                +   2 * ::sal::static_int_cast< sal_Int32, ErrorCondition >( _eCondition )
                +   ( _bSQLState ? 1 : 0 );
        }
    }

    //--------------------------------------------------------------------
    ::rtl::OUString SQLError_Impl::getErrorMessage( const ErrorCondition _eCondition, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 )
    {
        ::rtl::OUString sErrorMessage( impl_getErrorMessage( _eCondition ) );

        lcl_substitutePlaceholder( sErrorMessage, "$1$", _rParamValue1 );
        lcl_substitutePlaceholder( sErrorMessage, "$2$", _rParamValue2 );
        lcl_substitutePlaceholder( sErrorMessage, "$3$", _rParamValue3 );

        return sErrorMessage;
    }

    //--------------------------------------------------------------------
    ::rtl::OUString SQLError_Impl::getSQLState( const ErrorCondition _eCondition )
    {
        return impl_getSQLState( _eCondition );
    }

    //--------------------------------------------------------------------
    ErrorCode SQLError_Impl::getErrorCode( const ErrorCondition _eCondition )
    {
        return 0 - ::sal::static_int_cast< ErrorCode, ErrorCondition >( _eCondition );
    }

    //--------------------------------------------------------------------
    void SQLError_Impl::raiseException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 )
    {
        raiseTypedException(
            _eCondition,
            _rxContext,
            ::cppu::UnoType< SQLException >::get(),
            _rParamValue1,
            _rParamValue2,
            _rParamValue3
        );
    }

    //--------------------------------------------------------------------
    void SQLError_Impl::raiseException( const ErrorCondition _eCondition, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 )
    {
        raiseTypedException(
            _eCondition,
            NULL,
            ::cppu::UnoType< SQLException >::get(),
            _rParamValue1,
            _rParamValue2,
            _rParamValue3
        );
    }

    //--------------------------------------------------------------------
    void SQLError_Impl::raiseTypedException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext,
        const Type& _rExceptionType, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 )
    {
        if ( !::cppu::UnoType< SQLException >::get().isAssignableFrom( _rExceptionType ) )
            throw ::std::bad_cast();

        // default-construct an exception of the desired type
        Any aException( NULL, _rExceptionType );

        // fill it
        SQLException* pException = static_cast< SQLException* >( aException.pData );
        *pException = impl_buildSQLException( _eCondition, _rxContext, _rParamValue1, _rParamValue2, _rParamValue3 );

        // throw it
        ::cppu::throwException( aException );
    }

    //--------------------------------------------------------------------
    SQLException SQLError_Impl::getSQLException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext,
        const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 )
    {
        return impl_buildSQLException( _eCondition, _rxContext, _rParamValue1, _rParamValue2, _rParamValue3 );
    }

    //--------------------------------------------------------------------
    SQLException SQLError_Impl::impl_buildSQLException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext,
        const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 )
    {
        return SQLException(
            getErrorMessage( _eCondition, _rParamValue1, _rParamValue2, _rParamValue3 ),
            _rxContext,
            getSQLState( _eCondition ),
            getErrorCode( _eCondition ),
            Any()
        );
    }

    //--------------------------------------------------------------------
    ::rtl::OUString SQLError_Impl::impl_getErrorMessage( const ErrorCondition& _eCondition )
    {
        ::rtl::OUStringBuffer aMessage;

        if ( impl_initResources() )
        {
            ::rtl::OUString sResMessage( m_pResources->loadString( lcl_getResourceID( _eCondition, false ) ) );
            OSL_ENSURE( sResMessage.getLength(), "SQLError_Impl::impl_getErrorMessage: illegal error condition, or invalid resource!" );
            aMessage.append( getMessagePrefix() ).appendAscii( " " ).append( sResMessage );
        }

        return aMessage.makeStringAndClear();
    }

    //--------------------------------------------------------------------
    ::rtl::OUString SQLError_Impl::impl_getSQLState( const ErrorCondition& _eCondition )
    {
        ::rtl::OUString sState;

        if ( impl_initResources() )
        {
            sal_Int32 nResourceId( lcl_getResourceID( _eCondition, true ) );
            if ( m_pResources->hasString( nResourceId ) )
                sState = m_pResources->loadString( nResourceId );
        }

        if ( !sState.getLength() )
            sState = ::rtl::OUString::intern( RTL_CONSTASCII_USTRINGPARAM( "S1000" ) );

        return sState;
    }

    //--------------------------------------------------------------------
    bool SQLError_Impl::impl_initResources()
    {
        if ( m_pResources.get() )
            return true;
        if ( m_bAttemptedInit )
            return false;

        ::osl::MutexGuard aGuard( m_aMutex );
        m_bAttemptedInit = true;

        m_pResources.reset( new ::comphelper::OfficeResourceBundle( m_aContext.getUNOContext(), "sdberr" ) );
        return m_pResources.get() != NULL;
    }

    //====================================================================
    //= SQLError
    //====================================================================
    //--------------------------------------------------------------------
    SQLError::SQLError( const ::comphelper::ComponentContext& _rContext )
        :m_pImpl( new SQLError_Impl( _rContext ) )
    {
    }

    //--------------------------------------------------------------------
    SQLError::~SQLError()
    {
    }

    //--------------------------------------------------------------------
    const ::rtl::OUString& SQLError::getMessagePrefix()
    {
        return SQLError_Impl::getMessagePrefix();
    }

    //--------------------------------------------------------------------
    ::rtl::OUString SQLError::getErrorMessage( const ErrorCondition _eCondition, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 ) const
    {
        return m_pImpl->getErrorMessage( _eCondition, _rParamValue1, _rParamValue2, _rParamValue3 );
    }

    //--------------------------------------------------------------------
    ::rtl::OUString SQLError::getSQLState( const ErrorCondition _eCondition ) const
    {
        return m_pImpl->getSQLState( _eCondition );
    }

    //--------------------------------------------------------------------
    ErrorCode SQLError::getErrorCode( const ErrorCondition _eCondition )
    {
        return SQLError_Impl::getErrorCode( _eCondition );
    }

    //--------------------------------------------------------------------
    void SQLError::raiseException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 ) const
    {
        m_pImpl->raiseException( _eCondition, _rxContext, _rParamValue1, _rParamValue2, _rParamValue3 );
    }

    //--------------------------------------------------------------------
    void SQLError::raiseException( const ErrorCondition _eCondition, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 ) const
    {
        m_pImpl->raiseException( _eCondition, _rParamValue1, _rParamValue2, _rParamValue3 );
    }

    //--------------------------------------------------------------------
    void SQLError::raiseTypedException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext,
        const Type& _rExceptionType, const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 ) const
    {
        m_pImpl->raiseTypedException( _eCondition, _rxContext, _rExceptionType, _rParamValue1, _rParamValue2, _rParamValue3 );
    }

    //--------------------------------------------------------------------
    SQLException SQLError::getSQLException( const ErrorCondition _eCondition, const Reference< XInterface >& _rxContext,
        const ParamValue& _rParamValue1, const ParamValue& _rParamValue2, const ParamValue& _rParamValue3 ) const
    {
        return m_pImpl->getSQLException( _eCondition, _rxContext, _rParamValue1, _rParamValue2, _rParamValue3 );
    }

//........................................................................
} // namespace connectivity
//........................................................................