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path: root/connectivity/source/drivers/kab/KStatement.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: KStatement.cxx,v $
 * $Revision: 1.8 $
 *
 * 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 "KStatement.hxx"
#include "KConnection.hxx"
#include "KDriver.hxx"
#include "KResultSet.hxx"
#include "KResultSetMetaData.hxx"
#include "kcondition.hxx"
#include "korder.hxx"
#include "TConnection.hxx"
#include <connectivity/dbexception.hxx>

#if OSL_DEBUG_LEVEL > 0
# define OUtoCStr( x ) ( ::rtl::OUStringToOString ( (x), RTL_TEXTENCODING_ASCII_US).getStr())
#else /* OSL_DEBUG_LEVEL */
# define OUtoCStr( x ) ("dummy")
#endif /* OSL_DEBUG_LEVEL */

using namespace connectivity::kab;
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::beans;
using namespace com::sun::star::sdbc;
using namespace com::sun::star::sdbcx;
using namespace com::sun::star::container;
using namespace com::sun::star::io;
using namespace com::sun::star::util;

IMPLEMENT_SERVICE_INFO(KabStatement, "com.sun.star.sdbc.drivers.KabStatement", "com.sun.star.sdbc.Statement");
//------------------------------------------------------------------------------
KabCommonStatement::KabCommonStatement(KabConnection* _pConnection ) 
    : KabCommonStatement_BASE(m_aMutex),
    OPropertySetHelper(KabCommonStatement_BASE::rBHelper),
    m_aParser(_pConnection->getDriver()->getMSFactory()),
    m_aSQLIterator(_pConnection, _pConnection->createCatalog()->getTables(), m_aParser, NULL ),
    m_pParseTree(NULL),
    m_pConnection(_pConnection),
    rBHelper(KabCommonStatement_BASE::rBHelper)
{
    m_pConnection->acquire();
}
// -----------------------------------------------------------------------------
KabCommonStatement::~KabCommonStatement()
{
}
// -----------------------------------------------------------------------------
void KabCommonStatement::disposing()
{
    KabCommonStatement_BASE::disposing();
}
// -----------------------------------------------------------------------------
void KabCommonStatement::resetParameters() const throw(::com::sun::star::sdbc::SQLException)
{
    ::dbtools::throwGenericSQLException(
        ::rtl::OUString::createFromAscii("Parameters can appear only in prepared statements."),
        NULL);
}
// -----------------------------------------------------------------------------
void KabCommonStatement::getNextParameter(::rtl::OUString &) const throw(::com::sun::star::sdbc::SQLException)
{
    ::dbtools::throwGenericSQLException(
        ::rtl::OUString::createFromAscii("Parameters can appear only in prepared statements."),
        NULL);
}
// -----------------------------------------------------------------------------
KabCondition *KabCommonStatement::analyseWhereClause(const OSQLParseNode *pParseNode) const throw(SQLException)
{
    if (pParseNode->count() == 3)
    {
        const OSQLParseNode *pLeft = pParseNode->getChild(0),
                            *pMiddle = pParseNode->getChild(1),
                            *pRight = pParseNode->getChild(2);

        // WHERE ( ... ) ?
        if (SQL_ISPUNCTUATION(pLeft, "(") && SQL_ISPUNCTUATION(pRight, ")"))
        {
              return analyseWhereClause(pMiddle);
        }
        else if (SQL_ISRULE(pParseNode, comparison_predicate))
        {
            if (pLeft->isToken() && pRight->isToken())
            {
                switch (pMiddle->getNodeType())
                {
                    case SQL_NODE_EQUAL:
                        // WHERE 0 = 1
                        return new KabConditionConstant(pLeft->getTokenValue() == pRight->getTokenValue());

                    case SQL_NODE_NOTEQUAL:
                        // WHERE 0 <> 1
                        // (might not be correct SQL... don't care, handling anyway)
                        return new KabConditionConstant(pLeft->getTokenValue() != pRight->getTokenValue());

                    default:
                        break;
                }
            }
            else if (SQL_ISRULE(pLeft, column_ref))
            {
                ::rtl::OUString sColumnName,
                                sTableRange;

                m_aSQLIterator.getColumnRange(pLeft, sColumnName, sTableRange);

                if (pRight->isToken() || SQL_ISRULE(pRight, parameter))
                {
                    ::rtl::OUString sMatchString;

                    if (pRight->isToken())						// WHERE Name = 'Doe'
                        sMatchString = pRight->getTokenValue();
                    else if (SQL_ISRULE(pRight, parameter))		// WHERE Name = ?
                        getNextParameter(sMatchString);

                    switch (pMiddle->getNodeType())
                    {
                        case SQL_NODE_EQUAL:
                            // WHERE Name = 'Smith'
                            return new KabConditionEqual(sColumnName, sMatchString);

                         case SQL_NODE_NOTEQUAL:
                            // WHERE Name <> 'Jones'
                            return new KabConditionDifferent(sColumnName, sMatchString);

                        default:
                            break;
                    }
                }
            }
        }
        else if (SQL_ISRULE(pParseNode, search_condition))
        {
            if (SQL_ISTOKEN(pMiddle, OR))
            {
                // WHERE Name = 'Smith' OR Name = 'Jones'
                return new KabConditionOr(
                    analyseWhereClause(pLeft),
                    analyseWhereClause(pRight));
            }
        }
        else if (SQL_ISRULE(pParseNode, boolean_term))
        {
            if (SQL_ISTOKEN(pMiddle, AND))
            {
                // WHERE Name = 'Smith' AND "Given Name" = 'Peter'
                return new KabConditionAnd(
                    analyseWhereClause(pLeft),
                    analyseWhereClause(pRight));
            }
        }
    }
    else if (pParseNode->count() == 4)
    {
        const OSQLParseNode *pLeft = pParseNode->getChild(0),
                            *pMiddleLeft = pParseNode->getChild(1),
                            *pMiddleRight = pParseNode->getChild(2),
                            *pRight = pParseNode->getChild(3);

        if (SQL_ISRULE(pParseNode, test_for_null))
        {
            if (SQL_ISRULE(pLeft, column_ref) &&
                            SQL_ISTOKEN(pMiddleLeft, IS) &&
                            SQL_ISTOKEN(pRight, NULL))
            {
                ::rtl::OUString sColumnName,
                                sTableRange;

                m_aSQLIterator.getColumnRange(pLeft, sColumnName, sTableRange);

                if (SQL_ISTOKEN(pMiddleRight, NOT))
                {
                    // WHERE "Mobile Phone" IS NOT NULL
                    return new KabConditionNotNull(sColumnName);
                }
                else
                {
                    // WHERE "Mobile Phone" IS NULL
                    return new KabConditionNull(sColumnName);
                }
            }
        }
        else if (SQL_ISRULE(pParseNode, like_predicate))
        {
            if (SQL_ISRULE(pLeft, column_ref))
            {
                ::rtl::OUString sColumnName,
                                sTableRange;

                m_aSQLIterator.getColumnRange(pLeft, sColumnName, sTableRange);

                if (pMiddleRight->isToken() || SQL_ISRULE(pMiddleRight, parameter))
                {
                    ::rtl::OUString sMatchString;

                    if (pMiddleRight->isToken())					// WHERE Name LIKE 'Sm%'
                        sMatchString = pMiddleRight->getTokenValue();
                    else if (SQL_ISRULE(pMiddleRight, parameter))	// WHERE Name LIKE ?
                        getNextParameter(sMatchString);

                    return new KabConditionSimilar(sColumnName, sMatchString);
                }
            }
        }
    }
    ::dbtools::throwGenericSQLException(
        ::rtl::OUString::createFromAscii("Syntax error or keyword not recognized."),
        NULL);
    // Unreachable:
    OSL_ASSERT(false);
    return 0;
}
// -----------------------------------------------------------------------------
KabOrder *KabCommonStatement::analyseOrderByClause(const OSQLParseNode *pParseNode) const throw(SQLException)
{
    if (SQL_ISRULE(pParseNode, ordering_spec_commalist))
    {
        KabComplexOrder *list = new KabComplexOrder();
        sal_uInt32 n = pParseNode->count();

        // Iterate through the ordering columns
        for (sal_uInt32 i = 0; i < n; i++)
        {
            list->addOrder
                (analyseOrderByClause(pParseNode->getChild(i)));
        }

        return list;
    }
    else if (SQL_ISRULE(pParseNode, ordering_spec))
    {
        if (pParseNode->count() == 2)
        {
            OSQLParseNode* pColumnRef = pParseNode->getChild(0);
            OSQLParseNode* pAscendingDescending = pParseNode->getChild(1);

            if (SQL_ISRULE(pColumnRef, column_ref))
            {
                if (pColumnRef->count() == 3)
                    pColumnRef = pColumnRef->getChild(2);

                if (pColumnRef->count() == 1)
                {
                    ::rtl::OUString sColumnName =
                        pColumnRef->getChild(0)->getTokenValue();
                    sal_Bool bAscending =
                        SQL_ISTOKEN(pAscendingDescending, DESC)?
                        sal_False:
                        sal_True;

                    return new KabSimpleOrder(sColumnName, bAscending);
                }
            }
        }
    }
    ::dbtools::throwGenericSQLException(
        ::rtl::OUString::createFromAscii("Syntax error or keyword not recognized."),
        NULL);
    // Unreachable:
    OSL_ASSERT(false);
    return 0;
}
//------------------------------------------------------------------------------
sal_Bool KabCommonStatement::isTableKnown(KabResultSet *pResult) const
{
    // can handle requests like        SELECT * FROM addresses addresses
    // but cannot handle requests like SELECT * FROM addresses persons
    if (m_aSQLIterator.getTables().size() != 1)
        return sal_False;

    if (m_aSQLIterator.getTables().begin()->first != pResult->getMetaData()->getTableName(0))
        return sal_False;

    return sal_True;
}
//------------------------------------------------------------------------------
void KabCommonStatement::setKabFields(KabResultSet *pResult) const throw(SQLException)
{
    ::vos::ORef<connectivity::OSQLColumns> xColumns;	// selected columns
    KabResultSetMetaData *pMeta;				// meta information - holds the list of KAddressBook fields

    xColumns = m_aSQLIterator.getSelectColumns();
    if (!xColumns.isValid())
    {
        ::dbtools::throwGenericSQLException(
            ::rtl::OUString::createFromAscii("Invalid selection of columns"),
            NULL);
    }
    pMeta = static_cast<KabResultSetMetaData *>(pResult->getMetaData().get());
    pMeta->setKabFields(xColumns);
}
// -------------------------------------------------------------------------
void KabCommonStatement::selectAddressees(KabResultSet *pResult) const throw(SQLException)
{
    const OSQLParseNode *pParseNode;
    KabCondition *pCondition;

    pParseNode = m_aSQLIterator.getWhereTree();
    if (pParseNode != NULL)
    {
        if (SQL_ISRULE(pParseNode, where_clause))
        {
            resetParameters();
            pParseNode = pParseNode->getChild(1);
            pCondition = analyseWhereClause(pParseNode);
            if (pCondition->isAlwaysTrue())
                pResult->allKabAddressees();
            else if (!pCondition->isAlwaysFalse())
                pResult->someKabAddressees(pCondition);
            delete pCondition;
            return;
        }
    }

    // no WHERE clause: get all rows
    pResult->allKabAddressees();
}
// -------------------------------------------------------------------------
void KabCommonStatement::sortAddressees(KabResultSet *pResult) const throw(SQLException)
{
    const OSQLParseNode *pParseNode;
    KabOrder *pOrder;

    pParseNode = m_aSQLIterator.getOrderTree();
    if (pParseNode != NULL)
    {
        if (SQL_ISRULE(pParseNode, opt_order_by_clause))
        {
            pParseNode = pParseNode->getChild(2);
            pOrder = analyseOrderByClause(pParseNode);
            pResult->sortKabAddressees(pOrder);
            delete pOrder;
        }
    }
}
//-----------------------------------------------------------------------------
Any SAL_CALL KabCommonStatement::queryInterface( const Type & rType ) throw(RuntimeException)
{
    Any aRet = KabCommonStatement_BASE::queryInterface(rType);
    if (!aRet.hasValue())
        aRet = OPropertySetHelper::queryInterface(rType);
    return aRet;
}
// -------------------------------------------------------------------------
Sequence< Type > SAL_CALL KabCommonStatement::getTypes(  ) throw(RuntimeException)
{
    ::cppu::OTypeCollection aTypes(	::getCppuType( (const Reference< XMultiPropertySet > *)0 ),
                                    ::getCppuType( (const Reference< XFastPropertySet > *)0 ),
                                    ::getCppuType( (const Reference< XPropertySet > *)0 ));

    return comphelper::concatSequences(aTypes.getTypes(),KabCommonStatement_BASE::getTypes());
}
// -------------------------------------------------------------------------
void SAL_CALL KabCommonStatement::cancel(  ) throw(RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );

    checkDisposed(KabCommonStatement_BASE::rBHelper.bDisposed);
    // cancel the current sql statement
}
// -------------------------------------------------------------------------
void SAL_CALL KabCommonStatement::close(  ) throw(SQLException, RuntimeException)
{
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabCommonStatement_BASE::rBHelper.bDisposed);
            
    }
    dispose();
}
// -------------------------------------------------------------------------
sal_Bool SAL_CALL KabCommonStatement::execute(
        const ::rtl::OUString& sql ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(KabCommonStatement_BASE::rBHelper.bDisposed);

    Reference< XResultSet > xRS = executeQuery(sql);

    return xRS.is();
}
// -------------------------------------------------------------------------
Reference< XResultSet > SAL_CALL KabCommonStatement::executeQuery(
        const ::rtl::OUString& sql ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(KabCommonStatement_BASE::rBHelper.bDisposed);

OSL_TRACE("KDE Address book - SQL Request: %s", OUtoCStr(sql));

    KabResultSet* pResult = new KabResultSet(this);
    Reference< XResultSet > xRS = pResult;
    ::rtl::OUString aErr;

    m_pParseTree = m_aParser.parseTree(aErr, sql);
    if (m_pParseTree == NULL)
        throw SQLException(aErr, *this, aErr, 0, Any());

    m_aSQLIterator.setParseTree(m_pParseTree);
    m_aSQLIterator.traverseAll();
    switch (m_aSQLIterator.getStatementType())
    {
        case SQL_STATEMENT_SELECT:
            if (isTableKnown(pResult))		// FROM which table ?
            {
                setKabFields(pResult);		// SELECT which columns ?
                selectAddressees(pResult);	// WHERE which condition ?
                sortAddressees(pResult);	// ORDER BY which columns ?
// To be continued: DISTINCT
//				    etc...
            }
            break;

        default:
// To be continued: UPDATE
//				    DELETE
//				    etc...
            ::dbtools::throwGenericSQLException(
                ::rtl::OUString::createFromAscii("Unsupported SQL statement"),
                NULL);
    }

    return xRS;
}
// -------------------------------------------------------------------------
Reference< XConnection > SAL_CALL KabCommonStatement::getConnection(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(KabCommonStatement_BASE::rBHelper.bDisposed);
        
    // just return our connection here
    return (Reference< XConnection >) m_pConnection;
}
// -------------------------------------------------------------------------
sal_Int32 SAL_CALL KabCommonStatement::executeUpdate( const ::rtl::OUString& ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(KabCommonStatement_BASE::rBHelper.bDisposed);
        
    // the return values gives information about how many rows are affected by executing the sql statement		
    return 0;
}
// -------------------------------------------------------------------------
Any SAL_CALL KabCommonStatement::getWarnings(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(KabCommonStatement_BASE::rBHelper.bDisposed);

    return makeAny(m_aLastWarning);
}
// -------------------------------------------------------------------------
void SAL_CALL KabCommonStatement::clearWarnings(  ) throw(SQLException, RuntimeException)
{
    ::osl::MutexGuard aGuard( m_aMutex );
    checkDisposed(KabCommonStatement_BASE::rBHelper.bDisposed);

    m_aLastWarning = SQLWarning();
}
// -------------------------------------------------------------------------
::cppu::IPropertyArrayHelper* KabCommonStatement::createArrayHelper( ) const
{
    // this properties are defined by the service statement
    // they must be in alphabetic order
    Sequence< Property > aProps(10);
    Property* pProperties = aProps.getArray();
    sal_Int32 nPos = 0;
    DECL_PROP0(CURSORNAME,	::rtl::OUString);
    DECL_BOOL_PROP0(ESCAPEPROCESSING);
    DECL_PROP0(FETCHDIRECTION,sal_Int32);
    DECL_PROP0(FETCHSIZE,	sal_Int32);
    DECL_PROP0(MAXFIELDSIZE,sal_Int32);
    DECL_PROP0(MAXROWS,		sal_Int32);
    DECL_PROP0(QUERYTIMEOUT,sal_Int32);
    DECL_PROP0(RESULTSETCONCURRENCY,sal_Int32);
    DECL_PROP0(RESULTSETTYPE,sal_Int32);
    DECL_BOOL_PROP0(USEBOOKMARKS);

    return new ::cppu::OPropertyArrayHelper(aProps);
}
// -------------------------------------------------------------------------
::cppu::IPropertyArrayHelper & KabCommonStatement::getInfoHelper()
{
    return *const_cast<KabCommonStatement*>(this)->getArrayHelper();
}
// -------------------------------------------------------------------------
sal_Bool KabCommonStatement::convertFastPropertyValue(
        Any &,
        Any &,
        sal_Int32,
        const Any&) throw (::com::sun::star::lang::IllegalArgumentException)
{
    sal_Bool bConverted = sal_False;
    // here we have to try to convert 
    return bConverted;
}
// -------------------------------------------------------------------------
void KabCommonStatement::setFastPropertyValue_NoBroadcast(sal_Int32 nHandle,const Any&) throw (Exception)
{
    // set the value to whatever is nescessary
    switch (nHandle)
    {
        case PROPERTY_ID_QUERYTIMEOUT:
        case PROPERTY_ID_MAXFIELDSIZE:
        case PROPERTY_ID_MAXROWS:
        case PROPERTY_ID_CURSORNAME:
        case PROPERTY_ID_RESULTSETCONCURRENCY:
        case PROPERTY_ID_RESULTSETTYPE:
        case PROPERTY_ID_FETCHDIRECTION:
        case PROPERTY_ID_FETCHSIZE:
        case PROPERTY_ID_ESCAPEPROCESSING:
        case PROPERTY_ID_USEBOOKMARKS:
        default:
            ;
    }
}
// -------------------------------------------------------------------------
void KabCommonStatement::getFastPropertyValue(Any&,sal_Int32 nHandle) const
{
    switch (nHandle)
    {
        case PROPERTY_ID_QUERYTIMEOUT:
        case PROPERTY_ID_MAXFIELDSIZE:
        case PROPERTY_ID_MAXROWS:
        case PROPERTY_ID_CURSORNAME:
        case PROPERTY_ID_RESULTSETCONCURRENCY:
        case PROPERTY_ID_RESULTSETTYPE:
        case PROPERTY_ID_FETCHDIRECTION:
        case PROPERTY_ID_FETCHSIZE:
        case PROPERTY_ID_ESCAPEPROCESSING:
        case PROPERTY_ID_USEBOOKMARKS:
        default:
            ;
    }
}
// -----------------------------------------------------------------------------
void SAL_CALL KabCommonStatement::acquire() throw()
{
    KabCommonStatement_BASE::acquire();
}
// -----------------------------------------------------------------------------
void SAL_CALL KabCommonStatement::release() throw()
{
    KabCommonStatement_BASE::release();
}
// -----------------------------------------------------------------------------
Reference< ::com::sun::star::beans::XPropertySetInfo > SAL_CALL KabCommonStatement::getPropertySetInfo(  ) throw(RuntimeException)
{
    return ::cppu::OPropertySetHelper::createPropertySetInfo(getInfoHelper());
}
// -----------------------------------------------------------------------------
KabStatement::KabStatement(KabConnection* _pConnection)
    : KabStatement_BASE(_pConnection)
{
}