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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /connectivity/source/drivers/file/fanalyzer.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'connectivity/source/drivers/file/fanalyzer.cxx')
-rw-r--r--connectivity/source/drivers/file/fanalyzer.cxx207
1 files changed, 207 insertions, 0 deletions
diff --git a/connectivity/source/drivers/file/fanalyzer.cxx b/connectivity/source/drivers/file/fanalyzer.cxx
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+++ b/connectivity/source/drivers/file/fanalyzer.cxx
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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 <tools/debug.hxx>
+#include <connectivity/sqlnode.hxx>
+#include <file/FConnection.hxx>
+#include <strings.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::start(OSQLParseNode const * pSQLParseNode)
+{
+ if (SQL_ISRULE(pSQLParseNode,select_statement))
+ {
+ DBG_ASSERT(pSQLParseNode->count() >= 4,"OFILECursor: Error in 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 (auto const& code : rCodeList)
+ {
+ OOperandAttr* pAttr = dynamic_cast<OOperandAttr*>(code.get());
+ if (pAttr)
+ {
+ pAttr->bindValue(_pRow);
+ }
+ }
+}
+
+void OSQLAnalyzer::bindSelectRow(const OValueRefRow& _pRow)
+{
+ // first the select part
+ for (auto const& selectionEval : m_aSelectionEvaluations)
+ {
+ if ( selectionEval.first.is() )
+ bindRow(selectionEval.first->m_aCodeList,_pRow);
+ }
+}
+
+void OSQLAnalyzer::bindEvaluationRow(OValueRefRow const & _pRow)
+{
+ bindRow(m_aCompiler->m_aCodeList,_pRow);
+}
+
+OOperandAttr* OSQLAnalyzer::createOperandAttr(sal_Int32 _nPos,
+ const Reference< XPropertySet>& _xCol)
+{
+ 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 (auto const& selectionEval : m_aSelectionEvaluations)
+ {
+ if ( selectionEval.first.is() )
+ {
+ m_bHasSelectionCode = selectionEval.first->hasCode();
+ if (m_bHasSelectionCode)
+ break;
+ }
+ }
+ }
+ return m_bHasSelectionCode;
+}
+
+void OSQLAnalyzer::setSelectionEvaluationResult(OValueRefRow const & _pRow,const std::vector<sal_Int32>& _rColumnMapping)
+{
+ sal_Int32 nPos = 1;
+ for (auto const& selectionEval : m_aSelectionEvaluations)
+ {
+ if ( selectionEval.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 )
+ selectionEval.second->startSelection( (*_pRow)[map] );
+ }
+ ++nPos;
+ }
+}
+
+void OSQLAnalyzer::dispose()
+{
+ m_aCompiler->dispose();
+ for (auto const& selectionEval : m_aSelectionEvaluations)
+ {
+ if ( selectionEval.first.is() )
+ selectionEval.first->dispose();
+ }
+}
+
+void OSQLAnalyzer::setOrigColumns(const css::uno::Reference< css::container::XNameAccess>& rCols)
+{
+ m_aCompiler->setOrigColumns(rCols);
+ for (auto const& selectionEval : m_aSelectionEvaluations)
+ {
+ if ( selectionEval.first.is() )
+ selectionEval.first->setOrigColumns(rCols);
+ }
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */