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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you 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 .
*/
#include "file/fanalyzer.hxx"
#include <connectivity/sqlparse.hxx>
#include <osl/diagnose.h>
#include <tools/debug.hxx>
#include <comphelper/extract.hxx>
#include <connectivity/sqlnode.hxx>
#include <connectivity/dbexception.hxx>
#include "file/FConnection.hxx"
#include "resource/file_res.hrc"
using namespace ::connectivity;
using namespace ::connectivity::file;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::container;
OSQLAnalyzer::OSQLAnalyzer(OConnection* _pConnection)
:m_pConnection(_pConnection)
,m_bHasSelectionCode(false)
,m_bSelectionFirstTime(true)
{
m_aCompiler = new OPredicateCompiler(this);
m_aInterpreter = new OPredicateInterpreter(m_aCompiler);
}
OSQLAnalyzer::~OSQLAnalyzer()
{
}
void OSQLAnalyzer::setIndexes(const Reference< XNameAccess>& _xIndexes)
{
m_aCompiler->m_xIndexes = _xIndexes;
}
void OSQLAnalyzer::start(OSQLParseNode* pSQLParseNode)
{
if (SQL_ISRULE(pSQLParseNode,select_statement))
{
DBG_ASSERT(pSQLParseNode->count() >= 4,"OFILECursor: Fehler im Parse Tree");
// check that we don't use anything other than count(*) as function
OSQLParseNode* pSelection = pSQLParseNode->getChild(2);
if ( SQL_ISRULE(pSelection,scalar_exp_commalist) )
{
for (size_t i = 0; i < pSelection->count(); i++)
{
OSQLParseNode *pColumnRef = pSelection->getChild(i)->getChild(0);
if ( ( SQL_ISRULE(pColumnRef,set_fct_spec) && pColumnRef->count() == 4 )
|| SQL_ISRULE(pColumnRef,char_value_fct)
|| SQL_ISRULE(pColumnRef,char_substring_fct)
|| SQL_ISRULE(pColumnRef,position_exp)
|| SQL_ISRULE(pColumnRef,fold)
|| SQL_ISRULE(pColumnRef,length_exp)
|| SQL_ISRULE(pColumnRef,num_value_exp)
|| SQL_ISRULE(pColumnRef,term)
|| SQL_ISRULE(pColumnRef,factor)
|| SQL_ISRULE(pColumnRef,set_fct_spec) )
{
::rtl::Reference<OPredicateCompiler> pCompiler = new OPredicateCompiler(this);
pCompiler->setOrigColumns(m_aCompiler->getOrigColumns());
::rtl::Reference<OPredicateInterpreter> pInterpreter = new OPredicateInterpreter(pCompiler);
pCompiler->execute( pColumnRef );
m_aSelectionEvaluations.push_back( TPredicates(pCompiler,pInterpreter) );
}
else if ( ( SQL_ISRULE(pColumnRef,general_set_fct) && pColumnRef->count() != 4 ) )
{
m_pConnection->throwGenericSQLException(STR_QUERY_COMPLEX_COUNT,nullptr);
}
else
{
if ( SQL_ISPUNCTUATION( pColumnRef, "*" )
|| ( SQL_ISRULE( pColumnRef, column_ref )
&& ( pColumnRef->count() == 3 )
&& ( pColumnRef->getChild(0)->getNodeType() == SQLNodeType::Name )
&& SQL_ISPUNCTUATION( pColumnRef->getChild(1), "." )
&& SQL_ISRULE( pColumnRef->getChild(2), column_val )
&& SQL_ISPUNCTUATION( pColumnRef->getChild(2)->getChild(0), "*" )
)
)
{
// push one element for each column of our table
const Reference< XNameAccess > xColumnNames( m_aCompiler->getOrigColumns() );
const Sequence< OUString > aColumnNames( xColumnNames->getElementNames() );
for ( sal_Int32 j=0; j<aColumnNames.getLength(); ++j )
m_aSelectionEvaluations.push_back( TPredicates() );
}
else
m_aSelectionEvaluations.push_back( TPredicates() );
}
}
}
}
m_aCompiler->start(pSQLParseNode);
}
void OSQLAnalyzer::bindRow(OCodeList& rCodeList,const OValueRefRow& _pRow)
{
for (OCodeList::iterator aIter = rCodeList.begin(); aIter != rCodeList.end(); ++aIter)
{
OOperandAttr* pAttr = dynamic_cast<OOperandAttr*>(*aIter);
if (pAttr)
{
pAttr->bindValue(_pRow);
}
}
}
void OSQLAnalyzer::bindSelectRow(const OValueRefRow& _pRow)
{
// first the select part
for ( std::vector< TPredicates >::const_iterator aIter = m_aSelectionEvaluations.begin(); aIter != m_aSelectionEvaluations.end();++aIter)
{
if ( aIter->first.is() )
bindRow(aIter->first->m_aCodeList,_pRow);
}
}
void OSQLAnalyzer::bindEvaluationRow(OValueRefRow& _pRow)
{
bindRow(m_aCompiler->m_aCodeList,_pRow);
}
OOperandAttr* OSQLAnalyzer::createOperandAttr(sal_Int32 _nPos,
const Reference< XPropertySet>& _xCol,
const Reference< XNameAccess>& /*_xIndexes*/)
{
return new OOperandAttr(static_cast<sal_uInt16>(_nPos),_xCol);
}
bool OSQLAnalyzer::hasRestriction() const
{
return m_aCompiler->hasCode();
}
bool OSQLAnalyzer::hasFunctions() const
{
if ( m_bSelectionFirstTime )
{
m_bSelectionFirstTime = false;
for ( std::vector< TPredicates >::const_iterator aIter = m_aSelectionEvaluations.begin(); aIter != m_aSelectionEvaluations.end() && !m_bHasSelectionCode ;++aIter)
{
if ( aIter->first.is() )
m_bHasSelectionCode = aIter->first->hasCode();
}
}
return m_bHasSelectionCode;
}
void OSQLAnalyzer::setSelectionEvaluationResult(OValueRefRow& _pRow,const std::vector<sal_Int32>& _rColumnMapping)
{
sal_Int32 nPos = 1;
for ( std::vector< TPredicates >::iterator aIter = m_aSelectionEvaluations.begin(); aIter != m_aSelectionEvaluations.end();++aIter,++nPos)
{
if ( aIter->second.is() )
{
// the first column (index 0) is for convenience only. The first real select column is no 1.
sal_Int32 map = nPos;
if ( nPos < static_cast< sal_Int32 >( _rColumnMapping.size() ) )
map = _rColumnMapping[nPos];
if ( map > 0 )
aIter->second->startSelection( (_pRow->get())[map] );
}
}
}
void OSQLAnalyzer::dispose()
{
m_aCompiler->dispose();
for ( std::vector< TPredicates >::iterator aIter = m_aSelectionEvaluations.begin(); aIter != m_aSelectionEvaluations.end();++aIter)
{
if ( aIter->first.is() )
aIter->first->dispose();
}
}
void OSQLAnalyzer::setOrigColumns(const css::uno::Reference< css::container::XNameAccess>& rCols)
{
m_aCompiler->setOrigColumns(rCols);
for ( std::vector< TPredicates >::iterator aIter = m_aSelectionEvaluations.begin(); aIter != m_aSelectionEvaluations.end();++aIter)
{
if ( aIter->first.is() )
aIter->first->setOrigColumns(rCols);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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