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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 <datatransformation.hxx>
#include <datamapper.hxx>
#include <stringutil.hxx>
#include <tools/stream.hxx>
#include <vcl/svapp.hxx>
#include <docsh.hxx>
#include <orcus/csv_parser.hpp>
#include <utility>
namespace {
class CSVHandler
{
ScDocument* mpDoc;
SCCOL mnCol;
SCROW mnRow;
public:
CSVHandler(ScDocument* pDoc) :
mpDoc(pDoc), mnCol(0), mnRow(0)
{
}
static void begin_parse() {}
static void end_parse() {}
static void begin_row() {}
void end_row()
{
++mnRow;
mnCol = 0;
}
void cell(const char* p, size_t n, bool /*transient*/)
{
if (mnCol > mpDoc->MaxCol())
return;
double mfValue = 0.0;
if (ScStringUtil::parseSimpleNumber(p, n, '.', ',', mfValue))
{
mpDoc->SetValue(mnCol, mnRow, 0, mfValue);
}
else
{
OString aStr(p, n);
mpDoc->SetString(mnCol, mnRow, 0, OStringToOUString(aStr, RTL_TEXTENCODING_UTF8));
}
++mnCol;
}
};
}
namespace sc {
CSVFetchThread::CSVFetchThread(
ScDocument& rDoc, const OUString& mrURL, std::function<void()> aImportFinishedHdl,
const std::vector<std::shared_ptr<sc::DataTransformation>>& rDataTransformations)
: Thread("CSV Fetch Thread")
, mrDocument(rDoc)
, maURL(mrURL)
, mbTerminate(false)
, maDataTransformations(rDataTransformations)
, maImportFinishedHdl(std::move(aImportFinishedHdl))
{
maConfig.delimiters.push_back(',');
maConfig.text_qualifier = '"';
}
CSVFetchThread::~CSVFetchThread()
{
}
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()
{
OStringBuffer aBuffer(64000);
DataProvider::FetchStreamFromURL(maURL, aBuffer);
if (mbTerminate)
return;
CSVHandler aHdl(&mrDocument);
orcus::csv_parser<CSVHandler> parser(aBuffer.getStr(), aBuffer.getLength(), aHdl, maConfig);
parser.parse();
for (const auto& itr : maDataTransformations)
{
itr->Transform(mrDocument);
}
SolarMutexGuard aGuard;
maImportFinishedHdl();
}
CSVDataProvider::CSVDataProvider(ScDocument* pDoc, sc::ExternalDataSource& rDataSource):
DataProvider(rDataSource),
mpDocument(pDoc)
{
}
CSVDataProvider::~CSVDataProvider()
{
if (mxCSVFetchThread.is())
{
SolarMutexReleaser aReleaser;
mxCSVFetchThread->join();
}
}
void CSVDataProvider::Import()
{
// already importing data
if (mpDoc)
return;
mpDoc.reset(new ScDocument(SCDOCMODE_CLIP));
mpDoc->ResetClip(mpDocument, SCTAB(0));
mxCSVFetchThread = new CSVFetchThread(*mpDoc, mrDataSource.getURL(), std::bind(&CSVDataProvider::ImportFinished, this), mrDataSource.getDataTransformation());
mxCSVFetchThread->launch();
if (mbDeterministic)
{
SolarMutexReleaser aReleaser;
mxCSVFetchThread->join();
}
}
void CSVDataProvider::ImportFinished()
{
mrDataSource.getDBManager()->WriteToDoc(*mpDoc);
mpDoc.reset();
Refresh();
}
void CSVDataProvider::Refresh()
{
ScDocShell* pDocShell = static_cast<ScDocShell*>(mpDocument->GetDocumentShell());
if (pDocShell)
pDocShell->SetDocumentModified();
}
const OUString& CSVDataProvider::GetURL() const
{
return mrDataSource.getURL();
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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