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/***************************************************************************
* Copyright (C) 2004-2009 by Thomas Fischer *
* fischer@unix-ag.uni-kl.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <qfile.h>
#include <qdir.h>
#include <qstringlist.h>
#include <qapplication.h>
#include <qbuffer.h>
#include <qprocess.h>
#include <qwaitcondition.h>
#include <fileexporterbibtex.h>
#include "fileexporterbibutils.h"
namespace BibTeX
{
FileExporterBibUtils::FileExporterBibUtils( BibTeX::File::FileFormat outputFormat )
: FileExporter(), m_outputFormat( outputFormat ), m_bibTeXExporter( new FileExporterBibTeX() )
{
m_bibTeXExporter->setEncoding( "utf-8" );
m_processBuffer = new QBuffer();
}
FileExporterBibUtils::~FileExporterBibUtils()
{
delete m_processBuffer;
delete m_bibTeXExporter;
}
bool FileExporterBibUtils::save( QIODevice* iodevice, const Element* element, QStringList* errorLog )
{
m_cancelFlag = false;
QBuffer bibBuffer;
if ( !toBuffer( element, &bibBuffer, errorLog ) )
return false;
if ( !bufferToXMLbuffer( &bibBuffer ) || m_cancelFlag )
return false;
return !m_cancelFlag && xmlBufferToIOdevice( iodevice );
}
bool FileExporterBibUtils::save( QIODevice* iodevice, const File* bibtexfile, QStringList* errorLog )
{
emit progress( 0, 3 );
m_cancelFlag = false;
QBuffer bibBuffer;
if ( !toBuffer( bibtexfile, &bibBuffer, errorLog ) )
return false;
emit progress( 1, 3 );
if ( m_cancelFlag || !bufferToXMLbuffer( &bibBuffer ) )
return false;
emit progress( 2, 3 );
if ( m_cancelFlag || !xmlBufferToIOdevice( iodevice ) )
return false;
emit progress( 3, 3 );
return !m_cancelFlag;
}
void FileExporterBibUtils::cancel()
{
m_bibTeXExporter->cancel();
m_cancelFlag = true;
}
bool FileExporterBibUtils::toBuffer( const File *bibFile, QBuffer *buffer, QStringList* errorLog )
{
buffer->open( IO_WriteOnly );
bool result = m_bibTeXExporter->save( buffer, bibFile, errorLog );
buffer->close();
return result;
}
bool FileExporterBibUtils::toBuffer( const Element *bibElement, QBuffer *buffer, QStringList* errorLog )
{
buffer->open( IO_WriteOnly );
bool result = m_bibTeXExporter->save( buffer, bibElement, errorLog );
buffer->close();
return result;
}
bool FileExporterBibUtils::bufferToXMLbuffer( QBuffer *bibBuffer )
{
QWaitCondition wc;
m_processBuffer->open( IO_WriteOnly );
m_waiting = true;
m_process = new QProcess( QStringList::split( ' ', "bib2xml -i utf8" ) );
connect( m_process, SIGNAL( processExited() ), this, SLOT( wakeUp() ) );
connect( m_process, SIGNAL( readyReadStdout() ), this, SLOT( slotReadyStdout() ) );
connect( m_process, SIGNAL( readyReadStderr() ), this, SLOT( slotReadyStderr() ) );
m_process->start();
if ( m_process->isRunning() )
{
bibBuffer->open( IO_ReadOnly );
m_process->writeToStdin( bibBuffer->readAll() );
qApp->processEvents();
m_process->closeStdin();
bibBuffer->close();
int nothingHappens = 20;
while ( m_waiting )
{
wc.wait( 250 );
qApp->processEvents();
--nothingHappens;
}
if ( nothingHappens <= 0 )
m_process->kill();
if ( !m_process->normalExit() )
{
qDebug( "%s did not exit in a clean fashion", m_process->arguments()[0].latin1() );
delete m_process;
return false;
}
}
else
{
qDebug( "%s did not start", m_process->arguments()[0].latin1() );
delete m_process;
return false;
}
m_processBuffer->close();
delete m_process;
return true;
}
bool FileExporterBibUtils::xmlBufferToIOdevice( QIODevice *iodevice )
{
QWaitCondition wc;
m_waiting = true;
m_process = NULL;
switch ( m_outputFormat )
{
case BibTeX::File::formatISI:
m_process = new QProcess( QStringList::split( ' ', "xml2isi" ) );
break;
case BibTeX::File::formatWordBib:
m_process = new QProcess( QStringList::split( ' ', "xml2wordbib" ) );
break;
case BibTeX::File::formatAds:
m_process = new QProcess( QStringList::split( ' ', "xml2ads" ) );
break;
case BibTeX::File::formatEndNote:
m_process = new QProcess( QStringList::split( ' ', "xml2end" ) );
break;
case BibTeX::File::formatRIS:
m_process = new QProcess( QStringList::split( ' ', "xml2ris" ) );
break;
case BibTeX::File::formatMODS:
/* m_process = NULL; */
break;
default:
qDebug( "Cannot handle output format %i", m_outputFormat );
return false;
}
if ( m_process != NULL )
{
connect( m_process, SIGNAL( processExited() ), this, SLOT( wakeUp() ) );
connect( m_process, SIGNAL( readyReadStdout() ), this, SLOT( slotReadyStdout() ) );
connect( m_process, SIGNAL( readyReadStderr() ), this, SLOT( slotReadyStderr() ) );
if ( m_process->start() )
{
QBuffer *tempBuffer = m_processBuffer;
m_processBuffer = new QBuffer();
tempBuffer->open( IO_ReadOnly );
m_process->writeToStdin( tempBuffer->readAll() );
qApp->processEvents();
m_process->closeStdin();
tempBuffer->close();
m_processBuffer->open( IO_WriteOnly );
int nothingHappens = 20;
while ( m_waiting )
{
wc.wait( 250 );
qApp->processEvents();
--nothingHappens;
}
m_processBuffer->close();
delete tempBuffer;
if ( nothingHappens <= 0 )
m_process->kill();
if ( ! m_process->normalExit() )
{
delete m_process;
return false;
}
m_processBuffer->open( IO_ReadOnly );
iodevice->writeBlock( m_processBuffer->buffer() );
m_processBuffer->close();
delete m_process;
}
else
{
qDebug( "%s did not start", m_process->arguments()[0].latin1() );
delete m_process;
return false;
}
}
else
{
m_processBuffer->open( IO_ReadOnly );
iodevice->writeBlock( m_processBuffer->buffer() );
m_processBuffer->close();
}
return true;
}
void FileExporterBibUtils::wakeUp()
{
m_waiting = false;
}
void FileExporterBibUtils::slotReadyStdout()
{
m_processBuffer->writeBlock( m_process->readStdout() );
}
void FileExporterBibUtils::slotReadyStderr()
{
QByteArray ba = m_process->readStderr();
QTextStream bats( ba, IO_ReadOnly );
bats.setEncoding( QTextStream::UnicodeUTF8 );
qDebug( "%s", bats.read().latin1() );
}
}
#include "fileexporterbibutils.moc"
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