324 lines
12 KiB
C++
324 lines
12 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_connectivity.hxx"
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#include "LTable.hxx"
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#include "LConnection.hxx"
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using namespace connectivity;
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using namespace connectivity::evoab;
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//------------------------------------------------------------------
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xub_StrLen OEvoabString::GetTokenCount( sal_Unicode cTok, sal_Unicode cStrDel ) const
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{
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if ( !Len() )
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return 0;
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xub_StrLen nTokCount = 1;
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BOOL bStart = TRUE; // Stehen wir auf dem ersten Zeichen im Token?
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BOOL bInString = FALSE; // Befinden wir uns INNERHALB eines (cStrDel delimited) String?
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// Suche bis Stringende nach dem ersten nicht uebereinstimmenden Zeichen
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for( xub_StrLen i = 0; i < Len(); i++ )
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{
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if (bStart)
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{
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bStart = FALSE;
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// Erstes Zeichen ein String-Delimiter?
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if ((*this).GetChar(i) == cStrDel)
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{
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bInString = TRUE; // dann sind wir jetzt INNERHALB des Strings!
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continue; // dieses Zeichen ueberlesen!
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}
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}
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if (bInString) {
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// Wenn jetzt das String-Delimiter-Zeichen auftritt ...
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if ( (*this).GetChar(i) == cStrDel )
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{
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if ((i+1 < Len()) && ((*this).GetChar(i+1) == cStrDel))
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{
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// Verdoppeltes String-Delimiter-Zeichen:
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i++; // kein String-Ende, naechstes Zeichen ueberlesen.
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}
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else
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{
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// String-Ende
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bInString = FALSE;
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}
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}
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} else {
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// Stimmt das Tokenzeichen ueberein, dann erhoehe TokCount
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if ( (*this).GetChar(i) == cTok )
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{
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nTokCount++;
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bStart = TRUE;
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}
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}
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}
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//OSL_TRACE("OEvoabString::nTokCount = %d\n", ((OUtoCStr(::rtl::OUString(nTokCount))) ? (OUtoCStr(::rtl::OUString(nTokCount))):("NULL")) );
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return nTokCount;
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}
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//------------------------------------------------------------------
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void OEvoabString::GetTokenSpecial( String& _rStr,xub_StrLen& nStartPos, sal_Unicode cTok, sal_Unicode cStrDel ) const
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{
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_rStr.Erase();
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xub_StrLen nLen = Len();
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if ( nLen )
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{
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BOOL bInString = (nStartPos < nLen) && ((*this).GetChar(nStartPos) == cStrDel); // Befinden wir uns INNERHALB eines (cStrDel delimited) String?
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// Erstes Zeichen ein String-Delimiter?
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if (bInString )
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++nStartPos; // dieses Zeichen ueberlesen!
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// Suche bis Stringende nach dem ersten nicht uebereinstimmenden Zeichen
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for( xub_StrLen i = nStartPos; i < nLen; ++i )
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{
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if (bInString)
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{
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// Wenn jetzt das String-Delimiter-Zeichen auftritt ...
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if ( (*this).GetChar(i) == cStrDel )
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{
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if ((i+1 < nLen) && ((*this).GetChar(i+1) == cStrDel))
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{
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// Verdoppeltes String-Delimiter-Zeichen:
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++i; // kein String-Ende, naechstes Zeichen ueberlesen.
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_rStr += (*this).GetChar(i); // Zeichen gehoert zum Resultat-String
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}
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else
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{
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// String-Ende
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bInString = FALSE;
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}
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}
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else
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{
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_rStr += (*this).GetChar(i); // Zeichen gehoert zum Resultat-String
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}
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}
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else
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{
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// Stimmt das Tokenzeichen ueberein, dann erhoehe nTok
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if ( (*this).GetChar(i) == cTok )
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{
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// Vorzeitiger Abbruch der Schleife moeglich, denn
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// wir haben, was wir wollten.
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nStartPos = i+1;
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break;
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}
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else
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{
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_rStr += (*this).GetChar(i); // Zeichen gehoert zum Resultat-String
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}
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}
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}
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}
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}
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// -----------------------------------------------------------------------------
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void OEvoabTable::refreshIndexes()
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{
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}
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// -----------------------------------------------------------------------------
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sal_Bool OEvoabTable::checkHeaderLine()
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{
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if (m_nFilePos == 0 && ((OEvoabConnection*)m_pConnection)->isHeaderLine())
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{
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BOOL bRead2;
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do
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{
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bRead2 = m_pFileStream->ReadByteStringLine(m_aCurrentLine,m_pConnection->getTextEncoding());
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}
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while(bRead2 && !m_aCurrentLine.Len());
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m_nFilePos = m_pFileStream->Tell();
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if (m_pFileStream->IsEof())
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return sal_False;
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}
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return sal_True;
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}
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//------------------------------------------------------------------
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sal_Bool OEvoabTable::seekRow(IResultSetHelper::Movement eCursorPosition, sal_Int32 nOffset, sal_Int32& nCurPos)
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{
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//OSL_TRACE("OEvoabTable::(before SeekRow)m_aCurrentLine = %d\n", ((OUtoCStr(::rtl::OUString(m_aCurrentLine))) ? (OUtoCStr(::rtl::OUString(m_aCurrentLine))):("NULL")) );
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if ( !m_pFileStream )
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return sal_False;
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OEvoabConnection* pConnection = (OEvoabConnection*)m_pConnection;
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// ----------------------------------------------------------
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// Positionierung vorbereiten:
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//OSL_TRACE("OEvoabTable::(before SeekRow,m_pFileStriam Exist)m_aCurrentLine = %d\n", ((OUtoCStr(::rtl::OUString(m_aCurrentLine))) ? (OUtoCStr(::rtl::OUString(m_aCurrentLine))):("NULL")) );
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m_nFilePos = nCurPos;
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switch(eCursorPosition)
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{
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case IResultSetHelper::FIRST:
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m_nFilePos = 0;
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m_nRowPos = 1;
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// run through
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case IResultSetHelper::NEXT:
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if(eCursorPosition != IResultSetHelper::FIRST)
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++m_nRowPos;
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m_pFileStream->Seek(m_nFilePos);
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if (m_pFileStream->IsEof() || !checkHeaderLine())
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{
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m_nMaxRowCount = m_nRowPos;
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return sal_False;
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}
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m_aRowToFilePos.insert(::std::map<sal_Int32,sal_Int32>::value_type(m_nRowPos,m_nFilePos));
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m_pFileStream->ReadByteStringLine(m_aCurrentLine,pConnection->getTextEncoding());
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if (m_pFileStream->IsEof())
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{
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m_nMaxRowCount = m_nRowPos;
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return sal_False;
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}
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nCurPos = m_pFileStream->Tell();
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break;
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case IResultSetHelper::PRIOR:
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--m_nRowPos;
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if(m_nRowPos > 0)
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{
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m_nFilePos = m_aRowToFilePos.find(m_nRowPos)->second;
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m_pFileStream->Seek(m_nFilePos);
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if (m_pFileStream->IsEof() || !checkHeaderLine())
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return sal_False;
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m_pFileStream->ReadByteStringLine(m_aCurrentLine,pConnection->getTextEncoding());
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if (m_pFileStream->IsEof())
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return sal_False;
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nCurPos = m_pFileStream->Tell();
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}
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else
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m_nRowPos = 0;
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break;
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break;
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case IResultSetHelper::LAST:
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if(m_nMaxRowCount)
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{
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m_nFilePos = m_aRowToFilePos.rbegin()->second;
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m_nRowPos = m_aRowToFilePos.rbegin()->first;
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m_pFileStream->Seek(m_nFilePos);
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if (m_pFileStream->IsEof() || !checkHeaderLine())
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return sal_False;
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m_pFileStream->ReadByteStringLine(m_aCurrentLine,pConnection->getTextEncoding());
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if (m_pFileStream->IsEof())
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return sal_False;
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nCurPos = m_pFileStream->Tell();
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}
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else
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{
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while(seekRow(IResultSetHelper::NEXT,1,nCurPos)) ; // run through after last row
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// now I know all
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seekRow(IResultSetHelper::PRIOR,1,nCurPos);
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}
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break;
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case IResultSetHelper::RELATIVE:
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if(nOffset > 0)
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{
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for(sal_Int32 i = 0;i<nOffset;++i)
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seekRow(IResultSetHelper::NEXT,1,nCurPos);
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}
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else if(nOffset < 0)
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{
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for(sal_Int32 i = nOffset;i;++i)
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seekRow(IResultSetHelper::PRIOR,1,nCurPos);
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}
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break;
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case IResultSetHelper::ABSOLUTE:
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{
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if(nOffset < 0)
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nOffset = m_nRowPos + nOffset;
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::std::map<sal_Int32,sal_Int32>::const_iterator aIter = m_aRowToFilePos.find(nOffset);
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if(aIter != m_aRowToFilePos.end())
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{
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m_nFilePos = aIter->second;
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m_pFileStream->Seek(m_nFilePos);
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if (m_pFileStream->IsEof() || !checkHeaderLine())
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return sal_False;
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m_pFileStream->ReadByteStringLine(m_aCurrentLine,pConnection->getTextEncoding());
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if (m_pFileStream->IsEof())
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return sal_False;
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nCurPos = m_pFileStream->Tell();
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}
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else if(m_nMaxRowCount && nOffset > m_nMaxRowCount) // offset is outside the table
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{
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m_nRowPos = m_nMaxRowCount;
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return sal_False;
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}
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else
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{
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aIter = m_aRowToFilePos.upper_bound(nOffset);
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if(aIter == m_aRowToFilePos.end())
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{
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m_nRowPos = m_aRowToFilePos.rbegin()->first;
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nCurPos = m_nFilePos = m_aRowToFilePos.rbegin()->second;
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while(m_nRowPos != nOffset)
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seekRow(IResultSetHelper::NEXT,1,nCurPos);
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}
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else
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{
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--aIter;
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m_nRowPos = aIter->first;
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m_nFilePos = aIter->second;
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m_pFileStream->Seek(m_nFilePos);
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if (m_pFileStream->IsEof() || !checkHeaderLine())
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return sal_False;
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m_pFileStream->ReadByteStringLine(m_aCurrentLine,pConnection->getTextEncoding());
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if (m_pFileStream->IsEof())
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return sal_False;
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nCurPos = m_pFileStream->Tell();
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}
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}
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}
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break;
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case IResultSetHelper::BOOKMARK:
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m_pFileStream->Seek(nOffset);
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if (m_pFileStream->IsEof())
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return sal_False;
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m_nFilePos = m_pFileStream->Tell(); // Byte-Position in der Datei merken (am ZeilenANFANG)
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m_pFileStream->ReadByteStringLine(m_aCurrentLine,pConnection->getTextEncoding());
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if (m_pFileStream->IsEof())
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return sal_False;
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nCurPos = m_pFileStream->Tell();
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break;
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}
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//OSL_TRACE("OEvoabTable::(after SeekRow)m_aCurrentLine = %d\n", ((OUtoCStr(::rtl::OUString(m_aCurrentLine))) ? (OUtoCStr(::rtl::OUString(m_aCurrentLine))):("NULL")) );
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return sal_True;
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}
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// -----------------------------------------------------------------------------
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