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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include "storagexmlstream.hxx"
      21             : 
      22             : #include <com/sun/star/xml/sax/XDocumentHandler.hpp>
      23             : #include <com/sun/star/io/XActiveDataSource.hpp>
      24             : #include <com/sun/star/xml/sax/Parser.hpp>
      25             : #include <com/sun/star/xml/sax/Writer.hpp>
      26             : 
      27             : #include <cppuhelper/implbase1.hxx>
      28             : #include <rtl/ref.hxx>
      29             : #include <tools/diagnose_ex.h>
      30             : #include <xmloff/attrlist.hxx>
      31             : 
      32             : #include <stack>
      33             : 
      34             : namespace dbaccess
      35             : {
      36             : 
      37             :     using ::com::sun::star::uno::Reference;
      38             :     using ::com::sun::star::uno::XInterface;
      39             :     using ::com::sun::star::uno::UNO_QUERY;
      40             :     using ::com::sun::star::uno::UNO_QUERY_THROW;
      41             :     using ::com::sun::star::uno::UNO_SET_THROW;
      42             :     using ::com::sun::star::uno::Exception;
      43             :     using ::com::sun::star::uno::RuntimeException;
      44             :     using ::com::sun::star::uno::Any;
      45             :     using ::com::sun::star::uno::makeAny;
      46             :     using ::com::sun::star::uno::Sequence;
      47             :     using ::com::sun::star::uno::Type;
      48             :     using ::com::sun::star::uno::XComponentContext;
      49             :     using ::com::sun::star::embed::XStorage;
      50             :     using ::com::sun::star::xml::sax::XDocumentHandler;
      51             :     using ::com::sun::star::xml::sax::XAttributeList;
      52             :     using ::com::sun::star::xml::sax::XWriter;
      53             :     using ::com::sun::star::xml::sax::Writer;
      54             :     using ::com::sun::star::io::XStream;
      55             :     using ::com::sun::star::io::XOutputStream;
      56             :     using ::com::sun::star::io::XActiveDataSource;
      57             :     using ::com::sun::star::xml::sax::Parser;
      58             :     using ::com::sun::star::xml::sax::XParser;
      59             :     using ::com::sun::star::xml::sax::InputSource;
      60             : 
      61             :     // StorageXMLOutputStream_Data
      62           0 :     struct StorageXMLOutputStream_Data
      63             :     {
      64             :         Reference< XDocumentHandler >           xHandler;
      65             :         ::std::stack< OUString >         aElements;
      66             :         ::rtl::Reference< SvXMLAttributeList >  xAttributes;
      67             :     };
      68             : 
      69             :     // StorageXMLOutputStream
      70           0 :     StorageXMLOutputStream::StorageXMLOutputStream( const Reference<XComponentContext>& i_rContext,
      71             :                                                     const Reference< XStorage >& i_rParentStorage,
      72             :                                                     const OUString& i_rStreamName )
      73             :         :StorageOutputStream( i_rContext, i_rParentStorage, i_rStreamName )
      74           0 :         ,m_pData( new StorageXMLOutputStream_Data )
      75             :     {
      76           0 :         const Reference< XWriter > xSaxWriter = Writer::create( i_rContext );
      77           0 :         xSaxWriter->setOutputStream( getOutputStream() );
      78             : 
      79           0 :         m_pData->xHandler.set( xSaxWriter, UNO_QUERY_THROW );
      80           0 :         m_pData->xHandler->startDocument();
      81             : 
      82           0 :         m_pData->xAttributes = new SvXMLAttributeList;
      83           0 :     }
      84             : 
      85           0 :     StorageXMLOutputStream::~StorageXMLOutputStream()
      86             :     {
      87           0 :     }
      88             : 
      89           0 :     void StorageXMLOutputStream::close()
      90             :     {
      91           0 :         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "illegal document handler" );
      92           0 :         m_pData->xHandler->endDocument();
      93             :         // do not call the base class, it would call closeOutput on the output stream, which is already done by
      94             :         // endDocument
      95             :     }
      96             : 
      97           0 :     void StorageXMLOutputStream::addAttribute( const OUString& i_rName, const OUString& i_rValue ) const
      98             :     {
      99           0 :         m_pData->xAttributes->AddAttribute( i_rName, i_rValue );
     100           0 :     }
     101             : 
     102           0 :     void StorageXMLOutputStream::startElement( const OUString& i_rElementName ) const
     103             :     {
     104           0 :         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "no document handler" );
     105             : 
     106           0 :         m_pData->xHandler->startElement( i_rElementName, m_pData->xAttributes.get() );
     107           0 :         m_pData->xAttributes = new SvXMLAttributeList;
     108           0 :         m_pData->aElements.push( i_rElementName );
     109             :     }
     110             : 
     111           0 :     void StorageXMLOutputStream::endElement() const
     112             :     {
     113           0 :         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "no document handler" );
     114           0 :         ENSURE_OR_RETURN_VOID( !m_pData->aElements.empty(), "no element on the stack" );
     115             : 
     116           0 :         const OUString sElementName( m_pData->aElements.top() );
     117           0 :         m_pData->xHandler->endElement( sElementName );
     118           0 :         m_pData->aElements.pop();
     119             :     }
     120             : 
     121           0 :     void StorageXMLOutputStream::ignorableWhitespace( const OUString& i_rWhitespace ) const
     122             :     {
     123           0 :         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "no document handler" );
     124             : 
     125           0 :         m_pData->xHandler->ignorableWhitespace( i_rWhitespace );
     126             :     }
     127             : 
     128           0 :     void StorageXMLOutputStream::characters( const OUString& i_rCharacters ) const
     129             :     {
     130           0 :         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "no document handler" );
     131             : 
     132           0 :         m_pData->xHandler->characters( i_rCharacters );
     133             :     }
     134             : 
     135             :     // StorageXMLInputStream_Data
     136           0 :     struct StorageXMLInputStream_Data
     137             :     {
     138             :         Reference< XParser >    xParser;
     139             :     };
     140             : 
     141             :     // StorageXMLInputStream
     142           0 :     StorageXMLInputStream::StorageXMLInputStream( const Reference<XComponentContext>& i_rContext,
     143             :                                                   const Reference< XStorage >& i_rParentStorage,
     144             :                                                   const OUString& i_rStreamName )
     145             :         :StorageInputStream( i_rContext, i_rParentStorage, i_rStreamName )
     146           0 :         ,m_pData( new StorageXMLInputStream_Data )
     147             :     {
     148           0 :         m_pData->xParser.set( Parser::create(i_rContext) );
     149           0 :     }
     150             : 
     151           0 :     void StorageXMLInputStream::import( const Reference< XDocumentHandler >& i_rHandler )
     152             :     {
     153           0 :         ENSURE_OR_THROW( i_rHandler.is(), "illegal document handler (NULL)" );
     154             : 
     155           0 :         InputSource aInputSource;
     156           0 :         aInputSource.aInputStream = getInputStream();
     157             : 
     158           0 :         m_pData->xParser->setDocumentHandler( i_rHandler );
     159           0 :         m_pData->xParser->parseStream( aInputSource );
     160           0 :     }
     161             : 
     162           0 :     StorageXMLInputStream::~StorageXMLInputStream()
     163             :     {
     164           0 :     }
     165             : 
     166             : } // namespace dbaccess
     167             : 
     168             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */