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-rw-r--r--src/fileexporterbibutils.cpp259
1 files changed, 259 insertions, 0 deletions
diff --git a/src/fileexporterbibutils.cpp b/src/fileexporterbibutils.cpp
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+++ b/src/fileexporterbibutils.cpp
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+/***************************************************************************
+ * Copyright (C) 2004-2009 by Thomas Fischer *
+ * [email protected] *
+ * *
+ * 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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