dbaccess/source/core/recovery/storagexmlstream.cxx

   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     struct StorageXMLOutputStream_Data
  63     {
  64         Reference< XDocumentHandler >           xHandler;
  65         ::std::stack< OUString >         aElements;
  66         ::rtl::Reference< SvXMLAttributeList >  xAttributes;
  67     };
  68
  69     // StorageXMLOutputStream
  70     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         ,m_pData( new StorageXMLOutputStream_Data )
  75     {
  76         const Reference< XWriter > xSaxWriter = Writer::create( i_rContext );
  77         xSaxWriter->setOutputStream( getOutputStream() );
  78
  79         m_pData->xHandler.set( xSaxWriter, UNO_QUERY_THROW );
  80         m_pData->xHandler->startDocument();
  81
  82         m_pData->xAttributes = new SvXMLAttributeList;
  83     }
  84
  85     StorageXMLOutputStream::~StorageXMLOutputStream()
  86     {
  87     }
  88
  89     void StorageXMLOutputStream::close()
  90     {
  91         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "illegal document handler" );
  92         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     void StorageXMLOutputStream::addAttribute( const OUString& i_rName, const OUString& i_rValue ) const
  98     {
  99         m_pData->xAttributes->AddAttribute( i_rName, i_rValue );
 100     }
 101
 102     void StorageXMLOutputStream::startElement( const OUString& i_rElementName ) const
 103     {
 104         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "no document handler" );
 105
 106         m_pData->xHandler->startElement( i_rElementName, m_pData->xAttributes.get() );
 107         m_pData->xAttributes = new SvXMLAttributeList;
 108         m_pData->aElements.push( i_rElementName );
 109     }
 110
 111     void StorageXMLOutputStream::endElement() const
 112     {
 113         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "no document handler" );
 114         ENSURE_OR_RETURN_VOID( !m_pData->aElements.empty(), "no element on the stack" );
 115
 116         const OUString sElementName( m_pData->aElements.top() );
 117         m_pData->xHandler->endElement( sElementName );
 118         m_pData->aElements.pop();
 119     }
 120
 121     void StorageXMLOutputStream::ignorableWhitespace( const OUString& i_rWhitespace ) const
 122     {
 123         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "no document handler" );
 124
 125         m_pData->xHandler->ignorableWhitespace( i_rWhitespace );
 126     }
 127
 128     void StorageXMLOutputStream::characters( const OUString& i_rCharacters ) const
 129     {
 130         ENSURE_OR_RETURN_VOID( m_pData->xHandler.is(), "no document handler" );
 131
 132         m_pData->xHandler->characters( i_rCharacters );
 133     }
 134
 135     // StorageXMLInputStream_Data
 136     struct StorageXMLInputStream_Data
 137     {
 138         Reference< XParser >    xParser;
 139     };
 140
 141     // StorageXMLInputStream
 142     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         ,m_pData( new StorageXMLInputStream_Data )
 147     {
 148         m_pData->xParser.set( Parser::create(i_rContext) );
 149     }
 150
 151     void StorageXMLInputStream::import( const Reference< XDocumentHandler >& i_rHandler )
 152     {
 153         ENSURE_OR_THROW( i_rHandler.is(), "illegal document handler (NULL)" );
 154
 155         InputSource aInputSource;
 156         aInputSource.aInputStream = getInputStream();
 157
 158         m_pData->xParser->setDocumentHandler( i_rHandler );
 159         m_pData->xParser->parseStream( aInputSource );
 160     }
 161
 162     StorageXMLInputStream::~StorageXMLInputStream()
 163     {
 164     }
 165
 166 } // namespace dbaccess
 167
 168 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */