Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 947 insertions, 0 deletions

diff --git a/connectivity/source/drivers/flat/ETable.cxx b/connectivity/source/drivers/flat/ETable.cxx
new file mode 100644
index 0000000000..9cab6b13da
--- /dev/null
+++ b/connectivity/source/drivers/flat/ETable.cxx
@@ -0,0 +1,947 @@
+/* -*- 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 <flat/ETable.hxx>
+#include <com/sun/star/sdbc/ColumnValue.hpp>
+#include <com/sun/star/sdbc/DataType.hpp>
+#include <com/sun/star/sdbc/XRow.hpp>
+#include <com/sun/star/ucb/XContentAccess.hpp>
+#include <flat/EConnection.hxx>
+#include <flat/EColumns.hxx>
+#include <o3tl/safeint.hxx>
+#include <rtl/math.hxx>
+#include <sal/log.hxx>
+#include <tools/urlobj.hxx>
+#include <cppuhelper/queryinterface.hxx>
+#include <comphelper/numbers.hxx>
+#include <comphelper/servicehelper.hxx>
+#include <com/sun/star/util/NumberFormat.hpp>
+#include <com/sun/star/util/NumberFormatter.hpp>
+#include <com/sun/star/util/NumberFormatsSupplier.hpp>
+#include <i18nlangtag/languagetag.hxx>
+#include <connectivity/dbconversion.hxx>
+#include <connectivity/sdbcx/VColumn.hxx>
+#include <file/quotedstring.hxx>
+#include <file/FDriver.hxx>
+#include <unotools/syslocale.hxx>
+#include <unotools/charclass.hxx>
+
+using namespace ::comphelper;
+using namespace connectivity;
+using namespace connectivity::flat;
+using namespace connectivity::file;
+using namespace ::cppu;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::ucb;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::sdbcx;
+using namespace ::com::sun::star::sdbc;
+using namespace ::com::sun::star::container;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::util;
+using std::vector;
+using std::lower_bound;
+
+
+void OFlatTable::fillColumns(const css::lang::Locale& _aLocale)
+{
+    m_bNeedToReadLine = true; // we overwrite m_aCurrentLine, seek the stream, ...
+    m_pFileStream->Seek(0);
+    // tdf#123055 - start to read unicode text in order to avoid the BOM
+    m_pFileStream->StartReadingUnicodeText(RTL_TEXTENCODING_DONTKNOW);
+    m_aCurrentLine = QuotedTokenizedString();
+    bool bRead = true;
+
+    const OFlatConnection* const pConnection = getFlatConnection();
+    const bool bHasHeaderLine = pConnection->isHeaderLine();
+
+    QuotedTokenizedString aHeaderLine;
+    const sal_Int32 nPos = static_cast<sal_Int32>(m_pFileStream->Tell());
+    TRowPositionInFile rowPos(nPos, nPos);
+    sal_Int32 rowNum(0);
+    if ( bHasHeaderLine )
+    {
+        bRead = readLine(&rowPos.second, &rowPos.first, true);
+        if(bRead)
+            aHeaderLine = m_aCurrentLine;
+    }
+    setRowPos(rowNum++, rowPos);
+
+    // read first row
+    if(bRead)
+    {
+        bRead = readLine(&rowPos.second, &rowPos.first);
+        if(bRead)
+            setRowPos(rowNum++, rowPos);
+    }
+
+    if ( !bHasHeaderLine || !aHeaderLine.Len())
+    {
+        // use first non-empty row as headerline because we need the number of columns
+        while(bRead && m_aCurrentLine.Len() == 0)
+        {
+            bRead = readLine(&rowPos.second, &rowPos.first);
+            if(bRead)
+                setRowPos(rowNum++, rowPos);
+        }
+        aHeaderLine = m_aCurrentLine;
+    }
+    // column count
+    const sal_Int32 nFieldCount = aHeaderLine.GetTokenCount(m_cFieldDelimiter,m_cStringDelimiter);
+
+    if(!m_aColumns.is())
+        m_aColumns = new OSQLColumns();
+    else
+        m_aColumns->clear();
+
+    m_aTypes.clear();
+    m_aPrecisions.clear();
+    m_aScales.clear();
+    // reserve some space
+    m_aColumns->reserve(nFieldCount+1);
+    m_aTypes.assign(nFieldCount+1,DataType::SQLNULL);
+    m_aPrecisions.assign(nFieldCount+1,-1);
+    m_aScales.assign(nFieldCount+1,-1);
+
+    const bool bCase = m_pConnection->getMetaData()->supportsMixedCaseQuotedIdentifiers();
+    CharClass aCharClass( pConnection->getDriver()->getComponentContext(), LanguageTag( _aLocale));
+    // read description
+    const sal_Unicode cDecimalDelimiter  = pConnection->getDecimalDelimiter();
+    const sal_Unicode cThousandDelimiter = pConnection->getThousandDelimiter();
+    ::comphelper::UStringMixEqual aCase(bCase);
+    vector<OUString> aColumnNames;
+    vector<OUString> aTypeNames;
+    aTypeNames.resize(nFieldCount);
+    const sal_Int32 nMaxRowsToScan = pConnection->getMaxRowsToScan();
+    sal_Int32 nRowCount = 0;
+
+    do
+    {
+        sal_Int32 nStartPosHeaderLine = 0; // use for efficient way to get the tokens
+        sal_Int32 nStartPosFirstLine = 0; // use for efficient way to get the tokens
+        sal_Int32 nStartPosFirstLine2 = 0;
+        for( sal_Int32 i = 0; i < nFieldCount; i++ )
+        {
+            if ( nRowCount == 0)
+            {
+                OUString aColumnName;
+                if ( bHasHeaderLine )
+                {
+                    aColumnName = aHeaderLine.GetTokenSpecial(nStartPosHeaderLine,m_cFieldDelimiter,m_cStringDelimiter);
+                }
+                if ( aColumnName.isEmpty() )
+                {
+                    aColumnName = "C" + OUString::number(i+1);
+                }
+                aColumnNames.push_back(aColumnName);
+            }
+            if(bRead)
+            {
+                impl_fillColumnInfo_nothrow(m_aCurrentLine, nStartPosFirstLine, nStartPosFirstLine2,
+                                            m_aTypes[i], m_aPrecisions[i], m_aScales[i], aTypeNames[i],
+                                            cDecimalDelimiter, cThousandDelimiter, aCharClass);
+            }
+        }
+        ++nRowCount;
+        bRead = readLine(&rowPos.second, &rowPos.first);
+        if(bRead)
+            setRowPos(rowNum++, rowPos);
+    }
+    while(nRowCount < nMaxRowsToScan && bRead);
+
+    for( sal_Int32 i = 0; i < nFieldCount; i++ )
+    {
+        // check if the columname already exists
+        OUString aAlias(aColumnNames[i]);
+        OSQLColumns::const_iterator aFind = connectivity::find(m_aColumns->begin(),m_aColumns->end(),aAlias,aCase);
+        sal_Int32 nExprCnt = 0;
+        while(aFind != m_aColumns->end())
+        {
+            aAlias = aColumnNames[i] + OUString::number(++nExprCnt);
+            aFind = connectivity::find(m_aColumns->begin(),m_aColumns->end(),aAlias,aCase);
+        }
+
+        rtl::Reference<sdbcx::OColumn> pColumn = new sdbcx::OColumn(aAlias,aTypeNames[i],OUString(),OUString(),
+                                                ColumnValue::NULLABLE,
+                                                m_aPrecisions[i],
+                                                m_aScales[i],
+                                                m_aTypes[i],
+                                                false,
+                                                false,
+                                                false,
+                                                bCase,
+                                                m_CatalogName, getSchema(), getName());
+        m_aColumns->push_back(pColumn);
+    }
+
+    m_pFileStream->Seek(m_aRowPosToFilePos[0].second);
+}
+
+void OFlatTable::impl_fillColumnInfo_nothrow(QuotedTokenizedString const & aFirstLine, sal_Int32& nStartPosFirstLine, sal_Int32& nStartPosFirstLine2,
+                                             sal_Int32& io_nType, sal_Int32& io_nPrecisions, sal_Int32& io_nScales, OUString& o_sTypeName,
+                                             const sal_Unicode cDecimalDelimiter, const sal_Unicode cThousandDelimiter, const CharClass&  aCharClass)
+{
+    if ( io_nType != DataType::VARCHAR )
+    {
+        bool bNumeric = io_nType == DataType::SQLNULL || io_nType == DataType::DOUBLE || io_nType == DataType::DECIMAL || io_nType == DataType::INTEGER;
+        sal_Int32 nIndex = 0;
+
+        if ( bNumeric )
+        {
+            // first without fielddelimiter
+            OUString aField = aFirstLine.GetTokenSpecial(nStartPosFirstLine,m_cFieldDelimiter);
+            if (aField.isEmpty() ||
+                (m_cStringDelimiter && m_cStringDelimiter == aField[0]))
+            {
+                bNumeric = false;
+                if ( m_cStringDelimiter != '\0' )
+                    aField = aFirstLine.GetTokenSpecial(nStartPosFirstLine2,m_cFieldDelimiter,m_cStringDelimiter);
+                else
+                    nStartPosFirstLine2 = nStartPosFirstLine;
+            }
+            else
+            {
+                OUString aField2;
+                if ( m_cStringDelimiter != '\0' )
+                    aField2 = aFirstLine.GetTokenSpecial(nStartPosFirstLine2,m_cFieldDelimiter,m_cStringDelimiter);
+                else
+                    aField2 = aField;
+
+                if (aField2.isEmpty())
+                {
+                    bNumeric = false;
+                }
+                else
+                {
+                    bNumeric = true;
+                    sal_Int32 nDot = 0;
+                    sal_Int32 nDecimalDelCount = 0;
+                    sal_Int32 nSpaceCount = 0;
+                    for( sal_Int32 j = 0; j < aField2.getLength(); j++ )
+                    {
+                        const sal_Unicode c = aField2[j];
+                        if ( j == nSpaceCount && m_cFieldDelimiter != 32 && c == 32 )
+                        {
+                            ++nSpaceCount;
+                            continue;
+                        }
+                        // just digits, decimal- and thousands-delimiter?
+                        if ( ( !cDecimalDelimiter  || c != cDecimalDelimiter )  &&
+                             ( !cThousandDelimiter || c != cThousandDelimiter ) &&
+                            !aCharClass.isDigit(aField2,j)                      &&
+                            ( j != 0 || (c != '+' && c != '-' ) ) )
+                        {
+                            bNumeric = false;
+                            break;
+                        }
+                        if (cDecimalDelimiter && c == cDecimalDelimiter)
+                        {
+                            io_nPrecisions = 15; // we have a decimal value
+                            io_nScales = 2;
+                            ++nDecimalDelCount;
+                        } // if (cDecimalDelimiter && c == cDecimalDelimiter)
+                        if ( c == '.' )
+                            ++nDot;
+                    }
+
+                    if (nDecimalDelCount > 1 || nDot > 1 ) // if there is more than one dot it isn't a number
+                        bNumeric = false;
+                    if (bNumeric && cThousandDelimiter)
+                    {
+                        // Is the delimiter correct?
+                        const std::u16string_view aValue = o3tl::getToken(aField2, 0, cDecimalDelimiter);
+                        for( sal_Int32 j = static_cast<sal_Int32>(aValue.size()) - 4; j >= 0; j -= 4)
+                        {
+                            const sal_Unicode c = aValue[j];
+                            // just digits, decimal- and thousands-delimiter?
+                            if (c == cThousandDelimiter && j)
+                                continue;
+                            else
+                            {
+                                bNumeric = false;
+                                break;
+                            }
+                        }
+                    }
+
+                    // now also check for a date field
+                    if (!bNumeric)
+                    {
+                        try
+                        {
+                            nIndex = m_xNumberFormatter->detectNumberFormat(css::util::NumberFormat::ALL,aField2);
+                        }
+                        catch(Exception&)
+                        {
+                        }
+                    }
+                }
+            }
+        }
+        else if ( io_nType == DataType::DATE || io_nType == DataType::TIMESTAMP || io_nType == DataType::TIME)
+        {
+            OUString aField = aFirstLine.GetTokenSpecial(nStartPosFirstLine,m_cFieldDelimiter);
+            if (aField.isEmpty() ||
+                (m_cStringDelimiter && m_cStringDelimiter == aField[0]))
+            {
+            }
+            else
+            {
+                OUString aField2;
+                if ( m_cStringDelimiter != '\0' )
+                    aField2 = aFirstLine.GetTokenSpecial(nStartPosFirstLine2,m_cFieldDelimiter,m_cStringDelimiter);
+                else
+                    aField2 = aField;
+                if (!aField2.isEmpty() )
+                {
+                    try
+                    {
+                        nIndex = m_xNumberFormatter->detectNumberFormat(css::util::NumberFormat::ALL,aField2);
+                    }
+                    catch(Exception&)
+                    {
+                    }
+                }
+            }
+        }
+
+        if (bNumeric)
+        {
+            if (cDecimalDelimiter)
+            {
+                if(io_nPrecisions)
+                {
+                    io_nType = DataType::DECIMAL;
+                    o_sTypeName = "DECIMAL";
+                }
+                else
+                {
+                    io_nType = DataType::DOUBLE;
+                    o_sTypeName = "DOUBLE";
+                }
+            }
+            else
+            {
+                io_nType = DataType::INTEGER;
+                io_nPrecisions = 0;
+                io_nScales = 0;
+            }
+        }
+        else
+        {
+            switch (comphelper::getNumberFormatType(m_xNumberFormatter,nIndex))
+            {
+                case css::util::NumberFormat::DATE:
+                    io_nType = DataType::DATE;
+                    o_sTypeName = "DATE";
+                    break;
+                case css::util::NumberFormat::DATETIME:
+                    io_nType = DataType::TIMESTAMP;
+                    o_sTypeName = "TIMESTAMP";
+                    break;
+                case css::util::NumberFormat::TIME:
+                    io_nType = DataType::TIME;
+                    o_sTypeName = "TIME";
+                    break;
+                default:
+                    io_nType = DataType::VARCHAR;
+                    io_nPrecisions = 0; // nyi: Data can be longer!
+                    io_nScales = 0;
+                    o_sTypeName = "VARCHAR";
+            };
+        }
+    }
+    else
+    {
+        OUString aField = aFirstLine.GetTokenSpecial(nStartPosFirstLine,m_cFieldDelimiter);
+        if (aField.isEmpty() ||
+                (m_cStringDelimiter && m_cStringDelimiter == aField[0]))
+        {
+            if ( m_cStringDelimiter != '\0' )
+                aField = aFirstLine.GetTokenSpecial(nStartPosFirstLine2, m_cFieldDelimiter, m_cStringDelimiter);
+            else
+                nStartPosFirstLine2 = nStartPosFirstLine;
+        }
+        else
+        {
+            if ( m_cStringDelimiter != '\0' )
+                aFirstLine.GetTokenSpecial(nStartPosFirstLine2, m_cFieldDelimiter, m_cStringDelimiter);
+        }
+    }
+}
+
+OFlatTable::OFlatTable(sdbcx::OCollection* _pTables,OFlatConnection* _pConnection,
+                    const OUString& Name,
+                    const OUString& Type,
+                    const OUString& Description ,
+                    const OUString& SchemaName,
+                    const OUString& CatalogName
+                ) : OFlatTable_BASE(_pTables,_pConnection,Name,
+                                  Type,
+                                  Description,
+                                  SchemaName,
+                                  CatalogName)
+    ,m_nRowPos(0)
+    ,m_nMaxRowCount(0)
+    ,m_cStringDelimiter(_pConnection->getStringDelimiter())
+    ,m_cFieldDelimiter(_pConnection->getFieldDelimiter())
+    ,m_bNeedToReadLine(false)
+{
+
+}
+
+void OFlatTable::construct()
+{
+    SvtSysLocale aLocale;
+    css::lang::Locale aAppLocale(aLocale.GetLanguageTag().getLocale());
+
+    Reference< XNumberFormatsSupplier > xSupplier = NumberFormatsSupplier::createWithLocale( m_pConnection->getDriver()->getComponentContext(), aAppLocale );
+    m_xNumberFormatter.set( NumberFormatter::create( m_pConnection->getDriver()->getComponentContext()), UNO_QUERY_THROW);
+    m_xNumberFormatter->attachNumberFormatsSupplier(xSupplier);
+    Reference<XPropertySet> xProp = xSupplier->getNumberFormatSettings();
+    xProp->getPropertyValue("NullDate") >>= m_aNullDate;
+
+    INetURLObject aURL;
+    aURL.SetURL(getEntry());
+
+    if(aURL.getExtension() != m_pConnection->getExtension())
+        aURL.setExtension(m_pConnection->getExtension());
+
+    OUString aFileName = aURL.GetMainURL(INetURLObject::DecodeMechanism::NONE);
+
+    m_pFileStream = createStream_simpleError( aFileName, StreamMode::READWRITE | StreamMode::NOCREATE | StreamMode::SHARE_DENYWRITE);
+
+    if(!m_pFileStream)
+        m_pFileStream = createStream_simpleError( aFileName, StreamMode::READ | StreamMode::NOCREATE | StreamMode::SHARE_DENYNONE);
+
+    if(!m_pFileStream)
+        return;
+
+    sal_uInt64 const nSize = m_pFileStream->remainingSize();
+
+    // Buffersize is dependent on the file-size
+    m_pFileStream->SetBufferSize(nSize > 1000000 ? 32768 :
+                                nSize > 100000  ? 16384 :
+                                nSize > 10000   ? 4096  : 1024);
+
+    fillColumns(aAppLocale);
+
+    refreshColumns();
+}
+
+OUString OFlatTable::getEntry() const
+{
+    OUString sURL;
+    try
+    {
+        Reference< XResultSet > xDir = m_pConnection->getDir()->getStaticResultSet();
+        Reference< XRow> xRow(xDir,UNO_QUERY);
+        OUString sName;
+        OUString sExt;
+
+        INetURLObject aURL;
+        xDir->beforeFirst();
+        while(xDir->next())
+        {
+            sName = xRow->getString(1);
+            aURL.SetSmartProtocol(INetProtocol::File);
+            OUString sUrl = m_pConnection->getURL() + "/" + sName;
+            aURL.SetSmartURL( sUrl );
+
+            // cut the extension
+            sExt = aURL.getExtension();
+
+            // name and extension have to coincide
+            if ( m_pConnection->matchesExtension( sExt ) )
+            {
+                if ( !sExt.isEmpty() )
+                    sName = sName.replaceAt(sName.getLength() - (sExt.getLength() + 1), sExt.getLength()+1, u"");
+                if ( sName == m_Name )
+                {
+                    Reference< XContentAccess > xContentAccess( xDir, UNO_QUERY );
+                    sURL = xContentAccess->queryContentIdentifierString();
+                    break;
+                }
+            }
+        }
+        xDir->beforeFirst(); // move back to before first record
+    }
+    catch(const Exception&)
+    {
+        OSL_ASSERT(false);
+    }
+    return sURL;
+}
+
+void OFlatTable::refreshColumns()
+{
+    ::osl::MutexGuard aGuard( m_aMutex );
+
+    ::std::vector< OUString> aVector;
+    aVector.reserve(m_aColumns->size());
+
+    for (auto const& column : *m_aColumns)
+        aVector.push_back(Reference< XNamed>(column,UNO_QUERY_THROW)->getName());
+
+    if(m_xColumns)
+        m_xColumns->reFill(aVector);
+    else
+        m_xColumns.reset(new OFlatColumns(this,m_aMutex,aVector));
+}
+
+
+void SAL_CALL OFlatTable::disposing()
+{
+    OFileTable::disposing();
+    ::osl::MutexGuard aGuard(m_aMutex);
+    m_aColumns = nullptr;
+}
+
+Sequence< Type > SAL_CALL OFlatTable::getTypes(  )
+{
+    Sequence< Type > aTypes = OTable_TYPEDEF::getTypes();
+    vector<Type> aOwnTypes;
+    aOwnTypes.reserve(aTypes.getLength());
+    const Type* pBegin = aTypes.getConstArray();
+    const Type* pEnd = pBegin + aTypes.getLength();
+    for(;pBegin != pEnd;++pBegin)
+    {
+        if(!(*pBegin == cppu::UnoType<XKeysSupplier>::get()||
+            *pBegin == cppu::UnoType<XRename>::get()||
+            *pBegin == cppu::UnoType<XIndexesSupplier>::get()||
+            *pBegin == cppu::UnoType<XAlterTable>::get()||
+            *pBegin == cppu::UnoType<XDataDescriptorFactory>::get()))
+        {
+            aOwnTypes.push_back(*pBegin);
+        }
+    }
+    return Sequence< Type >(aOwnTypes.data(), aOwnTypes.size());
+}
+
+
+Any SAL_CALL OFlatTable::queryInterface( const Type & rType )
+{
+    if( rType == cppu::UnoType<XKeysSupplier>::get()||
+        rType == cppu::UnoType<XIndexesSupplier>::get()||
+        rType == cppu::UnoType<XRename>::get()||
+        rType == cppu::UnoType<XAlterTable>::get()||
+        rType == cppu::UnoType<XDataDescriptorFactory>::get())
+        return Any();
+
+    Any aRet = OTable_TYPEDEF::queryInterface(rType);
+    return aRet;
+}
+
+
+bool OFlatTable::fetchRow(OValueRefRow& _rRow, const OSQLColumns & _rCols, bool bRetrieveData)
+{
+    *(*_rRow)[0] = m_nFilePos;
+
+    if (!bRetrieveData)
+        return true;
+
+    bool result = false;
+    if ( m_bNeedToReadLine )
+    {
+        m_pFileStream->Seek(m_nFilePos);
+        TRowPositionInFile rowPos(0, 0);
+        if(readLine(&rowPos.second, &rowPos.first))
+        {
+            setRowPos(m_nRowPos, rowPos);
+            m_bNeedToReadLine = false;
+            result = true;
+        }
+        // else let run through so that we set _rRow to all NULL
+    }
+
+    const OFlatConnection * const pConnection = getFlatConnection();
+    const sal_Unicode cDecimalDelimiter = pConnection->getDecimalDelimiter();
+    const sal_Unicode cThousandDelimiter = pConnection->getThousandDelimiter();
+    // Fields:
+    sal_Int32 nStartPos = 0;
+    OSQLColumns::const_iterator aIter = _rCols.begin();
+    OSQLColumns::const_iterator aEnd = _rCols.end();
+    const OValueRefVector::size_type nCount = _rRow->size();
+    for (OValueRefVector::size_type i = 1;
+         aIter != aEnd && i < nCount;
+         ++aIter, i++)
+    {
+        OUString aStr = m_aCurrentLine.GetTokenSpecial(nStartPos,m_cFieldDelimiter,m_cStringDelimiter);
+
+        if (aStr.isEmpty())
+        {
+            (*_rRow)[i]->setNull();
+        }
+        else
+        {
+            sal_Int32 nType   = m_aTypes[i-1];
+            switch(nType)
+            {
+                case DataType::TIMESTAMP:
+                case DataType::DATE:
+                case DataType::TIME:
+                {
+                    try
+                    {
+                        double nRes = m_xNumberFormatter->convertStringToNumber(css::util::NumberFormat::ALL,aStr);
+
+                        switch(nType)
+                        {
+                            case DataType::DATE:
+                                *(*_rRow)[i] = ::dbtools::DBTypeConversion::toDouble(::dbtools::DBTypeConversion::toDate(nRes,m_aNullDate));
+                                break;
+                            case DataType::TIMESTAMP:
+                                *(*_rRow)[i] = ::dbtools::DBTypeConversion::toDouble(::dbtools::DBTypeConversion::toDateTime(nRes,m_aNullDate));
+                                break;
+                            default:
+                                *(*_rRow)[i] = ::dbtools::DBTypeConversion::toDouble(::dbtools::DBTypeConversion::toTime(nRes));
+                        }
+                    }
+                    catch(Exception&)
+                    {
+                        (*_rRow)[i]->setNull();
+                    }
+                }   break;
+                case DataType::DOUBLE:
+                case DataType::INTEGER:
+                case DataType::DECIMAL:
+                case DataType::NUMERIC:
+                {
+
+                    OUString aStrConverted;
+                    if ( DataType::INTEGER != nType )
+                    {
+                        OSL_ENSURE((cDecimalDelimiter && nType != DataType::INTEGER) ||
+                                   (!cDecimalDelimiter && nType == DataType::INTEGER),
+                                   "Wrong type");
+
+                        OUStringBuffer aBuf(aStr.getLength());
+                        // convert to Standard-Notation (DecimalPOINT without thousands-comma):
+                        for (sal_Int32 j = 0; j < aStr.getLength(); ++j)
+                        {
+                            const sal_Unicode cChar = aStr[j];
+                            if (cDecimalDelimiter && cChar == cDecimalDelimiter)
+                                aBuf.append('.');
+                            else if ( cChar == '.' ) // special case, if decimal separator isn't '.' we have to put the string after it
+                                continue;
+                            else if (cThousandDelimiter && cChar == cThousandDelimiter)
+                            {
+                                // leave out
+                            }
+                            else
+                                aBuf.append(cChar);
+                        } // for (j = 0; j < aStr.(); ++j)
+                        aStrConverted = aBuf.makeStringAndClear();
+                    } // if ( DataType::INTEGER != nType )
+                    else
+                    {
+                        if ( cThousandDelimiter )
+                            aStrConverted = aStr.replaceAll(OUStringChar(cThousandDelimiter), "");
+                        else
+                            aStrConverted = aStr;
+                    }
+                    const double nVal = ::rtl::math::stringToDouble(aStrConverted,'.',',');
+
+                    // #99178# OJ
+                    if ( DataType::DECIMAL == nType || DataType::NUMERIC == nType )
+                        *(*_rRow)[i] = OUString::number(nVal);
+                    else
+                        *(*_rRow)[i] = nVal;
+                } break;
+
+                default:
+                {
+                    // Copy Value as String in Row-Variable
+                    *(*_rRow)[i] = ORowSetValue(aStr);
+                }
+                break;
+            } // switch(nType)
+            (*_rRow)[i]->setTypeKind(nType);
+        }
+    }
+    return result;
+}
+
+
+void OFlatTable::refreshHeader()
+{
+    SAL_INFO( "connectivity.flat", "flat lionel@mamane.lu OFlatTable::refreshHeader" );
+}
+
+
+namespace
+{
+    template< typename Tp, typename Te> struct RangeBefore
+    {
+        bool operator() (const Tp &p, const Te &e)
+        {
+            assert(p.first <= p.second);
+            return p.second <= e;
+        }
+    };
+}
+
+bool OFlatTable::seekRow(IResultSetHelper::Movement eCursorPosition, sal_Int32 nOffset, sal_Int32& nCurPos)
+{
+    OSL_ENSURE(m_pFileStream,"OFlatTable::seekRow: FileStream is NULL!");
+
+
+    switch(eCursorPosition)
+    {
+        case IResultSetHelper::FIRST:
+            m_nRowPos = 0;
+            [[fallthrough]];
+        case IResultSetHelper::NEXT:
+            {
+                assert(m_nRowPos >= 0);
+                if(m_nMaxRowCount != 0 && m_nRowPos > m_nMaxRowCount)
+                    return false;
+                ++m_nRowPos;
+                if(m_aRowPosToFilePos.size() > o3tl::make_unsigned(m_nRowPos))
+                {
+                    m_bNeedToReadLine = true;
+                    m_nFilePos  = m_aRowPosToFilePos[m_nRowPos].first;
+                    nCurPos     = m_aRowPosToFilePos[m_nRowPos].second;
+                }
+                else
+                {
+                    assert(m_aRowPosToFilePos.size() == static_cast< vector< TRowPositionInFile >::size_type >(m_nRowPos));
+                    const TRowPositionInFile &lastRowPos(m_aRowPosToFilePos.back());
+                    // Our ResultSet is allowed to disagree with us only
+                    // on the position of the first line
+                    // (because of the special case of the header...)
+                    assert(m_nRowPos == 1 || nCurPos == lastRowPos.second);
+
+                    m_nFilePos = lastRowPos.second;
+                    m_pFileStream->Seek(m_nFilePos);
+
+                    TRowPositionInFile newRowPos;
+                    if(!readLine(&newRowPos.second, &newRowPos.first))
+                    {
+                        m_nMaxRowCount = m_nRowPos - 1;
+                        return false;
+                    }
+
+                    nCurPos = newRowPos.second;
+                    setRowPos(m_nRowPos, newRowPos);
+                }
+            }
+
+            break;
+        case IResultSetHelper::PRIOR:
+            assert(m_nRowPos >= 0);
+
+            if(m_nRowPos == 0)
+                return false;
+
+            --m_nRowPos;
+            {
+                assert (m_nRowPos >= 0);
+                assert(m_aRowPosToFilePos.size() >= o3tl::make_unsigned(m_nRowPos));
+                const TRowPositionInFile &aPositions(m_aRowPosToFilePos[m_nRowPos]);
+                m_nFilePos = aPositions.first;
+                nCurPos = aPositions.second;
+                m_bNeedToReadLine = true;
+            }
+
+            break;
+        case IResultSetHelper::LAST:
+            if (m_nMaxRowCount == 0)
+            {
+                while(seekRow(IResultSetHelper::NEXT, 1, nCurPos)) ; // run through after last row
+            }
+            // m_nMaxRowCount can still be zero, but now it means there a genuinely zero rows in the table
+            return seekRow(IResultSetHelper::ABSOLUTE1, m_nMaxRowCount, nCurPos);
+        case IResultSetHelper::RELATIVE1:
+            {
+                const sal_Int32 nNewRowPos = m_nRowPos + nOffset;
+                if (nNewRowPos < 0)
+                    return false;
+                // ABSOLUTE will take care of case nNewRowPos > nMaxRowCount
+                return seekRow(IResultSetHelper::ABSOLUTE1, nNewRowPos, nCurPos);
+            }
+        case IResultSetHelper::ABSOLUTE1:
+            {
+                if(nOffset < 0)
+                {
+                    if (m_nMaxRowCount == 0)
+                    {
+                        if (!seekRow(IResultSetHelper::LAST, 0, nCurPos))
+                            return false;
+                    }
+                    // m_nMaxRowCount can still be zero, but now it means there a genuinely zero rows in the table
+                    nOffset = m_nMaxRowCount + nOffset;
+                }
+                if(nOffset < 0)
+                {
+                    seekRow(IResultSetHelper::ABSOLUTE1, 0, nCurPos);
+                    return false;
+                }
+                if(m_nMaxRowCount && nOffset > m_nMaxRowCount)
+                {
+                    m_nRowPos = m_nMaxRowCount + 1;
+                    const TRowPositionInFile &lastRowPos(m_aRowPosToFilePos.back());
+                    m_nFilePos = lastRowPos.second;
+                    nCurPos = lastRowPos.second;
+                    return false;
+                }
+
+                assert(m_nRowPos >=0);
+                assert(m_aRowPosToFilePos.size() > o3tl::make_unsigned(m_nRowPos));
+                assert(nOffset >= 0);
+                if(m_aRowPosToFilePos.size() > o3tl::make_unsigned(nOffset))
+                {
+                    m_nFilePos  = m_aRowPosToFilePos[nOffset].first;
+                    nCurPos     = m_aRowPosToFilePos[nOffset].second;
+                    m_nRowPos   = nOffset;
+                    m_bNeedToReadLine = true;
+                }
+                else
+                {
+                    assert(m_nRowPos < nOffset);
+                    while(m_nRowPos < nOffset)
+                    {
+                        if(!seekRow(IResultSetHelper::NEXT, 1, nCurPos))
+                            return false;
+                    }
+                    assert(m_nRowPos == nOffset);
+                }
+            }
+
+            break;
+        case IResultSetHelper::BOOKMARK:
+            {
+                vector< TRowPositionInFile >::const_iterator aFind = lower_bound(m_aRowPosToFilePos.begin(),
+                                                                                 m_aRowPosToFilePos.end(),
+                                                                                 nOffset,
+                                                                                 RangeBefore< TRowPositionInFile, sal_Int32 >());
+
+                if(aFind == m_aRowPosToFilePos.end() || aFind->first != nOffset)
+                    //invalid bookmark
+                    return false;
+
+                m_bNeedToReadLine = true;
+                m_nFilePos  = aFind->first;
+                nCurPos     = aFind->second;
+                m_nRowPos = aFind - m_aRowPosToFilePos.begin();
+                break;
+            }
+    }
+
+    return true;
+}
+
+
+bool OFlatTable::readLine(sal_Int32 * const pEndPos, sal_Int32 * const pStartPos, const bool nonEmpty)
+{
+    const rtl_TextEncoding nEncoding = m_pConnection->getTextEncoding();
+    m_aCurrentLine = QuotedTokenizedString();
+    do
+    {
+        if (pStartPos)
+            *pStartPos = static_cast<sal_Int32>(m_pFileStream->Tell());
+        m_pFileStream->ReadByteStringLine(m_aCurrentLine, nEncoding);
+        if (m_pFileStream->eof())
+            return false;
+
+        QuotedTokenizedString sLine = m_aCurrentLine; // check if the string continues on next line
+        sal_Int32 nLastOffset = 0;
+        bool isQuoted = false;
+        bool isFieldStarting = true;
+        while (true)
+        {
+            bool wasQuote = false;
+            const sal_Unicode *p = sLine.GetString().getStr() + nLastOffset;
+            while (*p)
+            {
+                if (isQuoted)
+                {
+                    if (*p == m_cStringDelimiter)
+                        wasQuote = !wasQuote;
+                    else
+                    {
+                        if (wasQuote)
+                        {
+                            wasQuote = false;
+                            isQuoted = false;
+                            if (*p == m_cFieldDelimiter)
+                                isFieldStarting = true;
+                        }
+                    }
+                }
+                else
+                {
+                    if (isFieldStarting)
+                    {
+                        isFieldStarting = false;
+                        if (*p == m_cStringDelimiter)
+                            isQuoted = true;
+                        else if (*p == m_cFieldDelimiter)
+                            isFieldStarting = true;
+                    }
+                    else if (*p == m_cFieldDelimiter)
+                        isFieldStarting = true;
+                }
+                ++p;
+            }
+
+            if (wasQuote)
+                isQuoted = false;
+
+            if (isQuoted)
+            {
+                nLastOffset = sLine.Len();
+                m_pFileStream->ReadByteStringLine(sLine,nEncoding);
+                if ( !m_pFileStream->eof() )
+                {
+                    OUString aStr = m_aCurrentLine.GetString() + "\n" + sLine.GetString();
+                    m_aCurrentLine.SetString(aStr);
+                    sLine = m_aCurrentLine;
+                }
+                else
+                    break;
+            }
+            else
+                break;
+        }
+    }
+    while(nonEmpty && m_aCurrentLine.Len() == 0);
+
+    if(pEndPos)
+        *pEndPos = static_cast<sal_Int32>(m_pFileStream->Tell());
+    return true;
+}
+
+
+void OFlatTable::setRowPos(const vector<TRowPositionInFile>::size_type rowNum, const TRowPositionInFile &rowPos)
+{
+    assert(m_aRowPosToFilePos.size() >= rowNum);
+    if(m_aRowPosToFilePos.size() == rowNum)
+        m_aRowPosToFilePos.push_back(rowPos);
+    else
+    {
+        SAL_WARN_IF(m_aRowPosToFilePos[rowNum] != rowPos,
+                    "connectivity.flat",
+                    "Setting position for row " << rowNum << " to (" << rowPos.first << ", " << rowPos.second << "), "
+                    "but already had different position (" << m_aRowPosToFilePos[rowNum].first << ", " << m_aRowPosToFilePos[rowNum].second << ")");
+        m_aRowPosToFilePos[rowNum] = rowPos;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */