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#include "precompiled_connectivity.hxx"
#include "ParameterSubstitution.hxx"
#include "connectivity/sqlparse.hxx"
#include <comphelper/sequenceashashmap.hxx>

namespace connectivity
{
    using namespace ::com::sun::star::uno;
    using namespace ::com::sun::star::sdbc;
    using namespace ::com::sun::star::lang;
    using namespace ::com::sun::star;

    ParameterSubstitution::ParameterSubstitution(const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext ) : m_xContext(_rxContext)
    {
    }
    void SAL_CALL ParameterSubstitution::initialize( const uno::Sequence< uno::Any >& _aArguments ) throw (uno::Exception, uno::RuntimeException)
    {
        ::osl::MutexGuard aGuard(m_aMutex);
        comphelper::SequenceAsHashMap aArgs(_aArguments);
        uno::Reference< sdbc::XConnection > xConnection;
        xConnection = aArgs.getUnpackedValueOrDefault(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("ActiveConnection")),xConnection);
        m_xConnection = xConnection;
    }
    //------------------------------------------------------------------------------
    rtl::OUString ParameterSubstitution::getImplementationName_Static(  ) throw(RuntimeException)
    {
        return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("org.openoffice.comp.helper.ParameterSubstitution"));
    }
    //------------------------------------------------------------------------------
    ::rtl::OUString SAL_CALL ParameterSubstitution::getImplementationName(  ) throw(RuntimeException)
    {
        return getImplementationName_Static();
    }
    //------------------------------------------------------------------
    sal_Bool SAL_CALL ParameterSubstitution::supportsService( const ::rtl::OUString& _rServiceName ) throw(RuntimeException)
    {
        Sequence< ::rtl::OUString > aSupported(getSupportedServiceNames());
        const ::rtl::OUString* pSupported = aSupported.getConstArray();
        const ::rtl::OUString* pEnd = pSupported + aSupported.getLength();
        for (;pSupported != pEnd && !pSupported->equals(_rServiceName); ++pSupported)
            ;

        return pSupported != pEnd;
    }
    //------------------------------------------------------------------
    Sequence< ::rtl::OUString > SAL_CALL ParameterSubstitution::getSupportedServiceNames(  ) throw(RuntimeException)
    {
        return getSupportedServiceNames_Static();
    }
    //------------------------------------------------------------------
    Sequence< ::rtl::OUString > ParameterSubstitution::getSupportedServiceNames_Static(  ) throw (RuntimeException)
    {
        Sequence< ::rtl::OUString > aSNS( 1 );
        aSNS[0] = ::rtl::OUString::createFromAscii("com.sun.star.sdb.ParameterSubstitution");
        return aSNS;
    }

    //------------------------------------------------------------------
    Reference< XInterface >  ParameterSubstitution::create(const Reference< XComponentContext >& _xContext)
    {
        return *(new ParameterSubstitution(_xContext));
    }
    //------------------------------------------------------------------
    ::rtl::OUString SAL_CALL ParameterSubstitution::substituteVariables( const ::rtl::OUString& _sText, ::sal_Bool /*bSubstRequired*/ ) throw (::com::sun::star::container::NoSuchElementException, ::com::sun::star::uno::RuntimeException)
    {
        ::rtl::OUString sRet = _sText;
        uno::Reference< sdbc::XConnection > xConnection = m_xConnection;
        if ( xConnection.is() )
        {
            try
            {
                uno::Reference< XMultiServiceFactory> xFac(m_xContext->getServiceManager(),uno::UNO_QUERY_THROW);
                OSQLParser aParser( xFac );
                ::rtl::OUString sErrorMessage;
                ::rtl::OUString sNewSql;
                OSQLParseNode* pNode = aParser.parseTree(sErrorMessage,_sText);
                if(pNode)
                {   // special handling for parameters
                    OSQLParseNode::substituteParameterNames(pNode);
                    pNode->parseNodeToStr( sNewSql, xConnection );
                    delete pNode;
                    sRet = sNewSql;
                }
            }
            catch(const Exception&)
            {
            }
        }
        return sRet;
    }
    //------------------------------------------------------------------
    ::rtl::OUString SAL_CALL ParameterSubstitution::reSubstituteVariables( const ::rtl::OUString& _sText ) throw (::com::sun::star::uno::RuntimeException)
    {
        return _sText;
    }
    //------------------------------------------------------------------
    ::rtl::OUString SAL_CALL ParameterSubstitution::getSubstituteVariableValue( const ::rtl::OUString& /*variable*/ ) throw (::com::sun::star::container::NoSuchElementException, ::com::sun::star::uno::RuntimeException)
    {
        throw container::NoSuchElementException();
    }
    //------------------------------------------------------------------


// ==================================
} // connectivity
// ==================================

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