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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/.
*/
#include <dataprovider.hxx>
#include <com/sun/star/ucb/XSimpleFileAccess3.hpp>
#include <com/sun/star/ucb/SimpleFileAccess.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include "officecfg/Office/Calc.hxx"
#include <stringutil.hxx>
#include <rtl/strbuf.hxx>
#if defined(_WIN32)
#if !defined __ORCUS_STATIC_LIB // avoid -Werror,-Wunused-macros
#define __ORCUS_STATIC_LIB
#endif
#endif
#include <orcus/csv_parser.hpp>
using namespace com::sun::star;
namespace sc {
SvStream* FetchStreamFromURL (OUString& rURL)
{
uno::Reference< ucb::XSimpleFileAccess3 > xFileAccess( ucb::SimpleFileAccess::create( comphelper::getProcessComponentContext() ), uno::UNO_QUERY );
uno::Reference< io::XInputStream > xStream;
xStream = xFileAccess->openFileRead( rURL );
const sal_Int32 BUF_LEN = 8000;
uno::Sequence< sal_Int8 > buffer( BUF_LEN );
OStringBuffer aBuffer( 64000 );
sal_Int32 nRead = 0;
while ( ( nRead = xStream->readBytes( buffer, BUF_LEN ) ) == BUF_LEN )
{
aBuffer.append( reinterpret_cast< const char* >( buffer.getConstArray() ), nRead );
}
if ( nRead > 0 )
{
aBuffer.append( reinterpret_cast< const char* >( buffer.getConstArray() ), nRead );
}
xStream->closeInput();
SvStream* pStream = new SvStream;
pStream->WriteCharPtr(aBuffer.getStr());
return pStream;
}
ExternalDataMapper::ExternalDataMapper(ScDocShell* pDocShell, const OUString& rURL, const OUString& rName, SCTAB nTab,
SCCOL nCol1,SCROW nRow1, SCCOL nCol2, SCROW nRow2, bool& bSuccess):
maRange (ScRange(nCol1, nRow1, nTab, nCol2, nRow2, nTab)),
mpDocShell(pDocShell),
mpDataProvider (new CSVDataProvider(mpDocShell, maURL, maRange)),
mpDBCollection (pDocShell->GetDocument().GetDBCollection()),
maURL(rURL)
{
bSuccess = true;
ScDBCollection::NamedDBs& rNamedDBS = mpDBCollection->getNamedDBs();
if(!rNamedDBS.insert (new ScDBData (rName, nTab, nCol1, nRow1, nCol2, nRow2)))
bSuccess = false;
}
ExternalDataMapper::~ExternalDataMapper()
{
delete mpDataProvider;
}
void ExternalDataMapper::StartImport()
{
mpDataProvider->StartImport();
}
DataProvider::~DataProvider()
{
}
Cell::Cell() : mfValue(0.0), mbValue(true) {}
Cell::Cell(const Cell& r) : mbValue(r.mbValue)
{
if (r.mbValue)
mfValue = r.mfValue;
else
{
maStr.Pos = r.maStr.Pos;
maStr.Size = r.maStr.Size;
}
}
class CSVHandler
{
Line& mrLine;
size_t mnColCount;
size_t mnCols;
const char* mpLineHead;
public:
CSVHandler( Line& rLine, size_t nColCount ) :
mrLine(rLine), mnColCount(nColCount), mnCols(0), mpLineHead(rLine.maLine.getStr()) {}
static void begin_parse() {}
static void end_parse() {}
static void begin_row() {}
static void end_row() {}
void cell(const char* p, size_t n)
{
if (mnCols >= mnColCount)
return;
Cell aCell;
if (ScStringUtil::parseSimpleNumber(p, n, '.', ',', aCell.mfValue))
{
aCell.mbValue = true;
}
else
{
aCell.mbValue = false;
aCell.maStr.Pos = std::distance(mpLineHead, p);
aCell.maStr.Size = n;
}
mrLine.maCells.push_back(aCell);
++mnCols;
}
};
CSVFetchThread::CSVFetchThread(SvStream *pData, size_t nColCount):
Thread("ReaderThread"),
mpStream(pData),
mnColCount(nColCount),
mbTerminate(false)
{
maConfig.delimiters.push_back(',');
maConfig.text_qualifier = '"';
}
CSVFetchThread::~CSVFetchThread()
{
delete mpStream;
}
bool CSVFetchThread::IsRequestedTerminate()
{
osl::MutexGuard aGuard(maMtxTerminate);
return mbTerminate;
}
void CSVFetchThread::RequestTerminate()
{
osl::MutexGuard aGuard(maMtxTerminate);
mbTerminate = true;
}
void CSVFetchThread::EndThread()
{
RequestTerminate();
}
void CSVFetchThread::execute()
{
LinesType aLines(10);
// Read & store new lines from stream.
for (Line & rLine : aLines)
{
rLine.maCells.clear();
mpStream->ReadLine(rLine.maLine);
CSVHandler aHdl(rLine, mnColCount);
orcus::csv_parser<CSVHandler> parser(rLine.maLine.getStr(), rLine.maLine.getLength(), aHdl, maConfig);
parser.parse();
}
if (!mpStream->good())
RequestTerminate();
}
CSVDataProvider::CSVDataProvider(ScDocShell* pDocShell, const OUString& rURL, const ScRange& rRange):
maURL(rURL),
mrRange(rRange),
mpDocShell(pDocShell),
mbImportUnderway(false)
{
}
CSVDataProvider::~CSVDataProvider()
{
if(mbImportUnderway)
StopImport();
if (mxCSVFetchThread.is())
{
mxCSVFetchThread->EndThread();
mxCSVFetchThread->join();
}
}
void CSVDataProvider::StartImport()
{
if (mbImportUnderway)
return;
if (!mxCSVFetchThread.is())
{
SvStream* pStream = FetchStreamFromURL(maURL);
mxCSVFetchThread = new CSVFetchThread(pStream, mrRange.aEnd.Col() - mrRange.aStart.Col() + 1);
mxCSVFetchThread->launch();
}
mbImportUnderway = true;
maImportTimer.Start();
}
void CSVDataProvider::StopImport()
{
if (!mbImportUnderway)
return;
mbImportUnderway = false;
Refresh();
maImportTimer.Stop();
}
void CSVDataProvider::Refresh()
{
mpDocShell->DoHardRecalc(true);
mpDocShell->SetDocumentModified();
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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