writerfilter/source/doctok/WW8StreamImpl.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 <WW8StreamImpl.hxx>
  21
  22 #include <com/sun/star/uno/Reference.h>
  23 #include <com/sun/star/io/XSeekable.hpp>
  24 #include <com/sun/star/io/XStream.hpp>
  25 #include <com/sun/star/lang/XMultiComponentFactory.hpp>
  26
  27 #include <doctokLoggers.hxx>
  28
  29 namespace writerfilter {
  30 namespace doctok
  31 {
  32 using namespace ::com::sun::star;
  33
  34 #if OSL_DEBUG_LEVEL > 1
  35 TagLogger::Pointer_t debug_logger(TagLogger::getInstance("DEBUG"));
  36 #endif
  37
  38 WW8Stream::~WW8Stream()
  39 {
  40 }
  41
  42 WW8StreamImpl::WW8StreamImpl(uno::Reference<uno::XComponentContext> rContext,
  43               uno::Reference<io::XInputStream> rStream)
  44 : mrComponentContext(rContext), mrStream(rStream)
  45 {
  46     xFactory = uno::Reference<lang::XMultiComponentFactory>
  47         (mrComponentContext->getServiceManager());
  48
  49     uno::Sequence<uno::Any> aArgs( 1 );
  50     aArgs[0] <<= mrStream;
  51
  52     xOLESimpleStorage = uno::Reference<container::XNameContainer>
  53         (xFactory->createInstanceWithArgumentsAndContext
  54          ("com.sun.star.embed.OLESimpleStorage",
  55           aArgs, mrComponentContext ),
  56          uno::UNO_QUERY );
  57
  58 }
  59
  60 WW8StreamImpl::~WW8StreamImpl()
  61 {
  62 }
  63
  64 WW8Stream::Sequence WW8StreamImpl::get(sal_uInt32 nOffset,
  65                                        sal_uInt32 nCount) const
  66 {
  67     uno::Sequence<sal_Int8> aSequence;
  68
  69     if (nCount > 0)
  70     {
  71         uno::Reference< io::XSeekable > xSeek( mrStream, uno::UNO_QUERY_THROW );
  72
  73         xSeek->seek(nOffset);
  74
  75         sal_Int32 nRead = mrStream->readBytes(aSequence, nCount);
  76
  77         Sequence aReturnSequence(const_cast<const sal_uInt8 *>
  78                                  (reinterpret_cast<sal_uInt8 *>
  79                                   (&(aSequence[0]))), nRead);
  80
  81         return aReturnSequence;
  82     }
  83
  84     return WW8Stream::Sequence();
  85 }
  86
  87 WW8Stream::Pointer_t WW8StreamImpl::getSubStream(const OUString & sId)
  88 {
  89     WW8Stream::Pointer_t pResult;
  90
  91     try
  92     {
  93         if (xOLESimpleStorage.is())
  94         {
  95             if (xOLESimpleStorage->hasByName(sId))
  96             {
  97                 uno::Reference<io::XStream> xNewStream;
  98                 {
  99                     uno::Any aValue = xOLESimpleStorage->getByName(sId);
 100                     aValue >>= xNewStream;
 101                 }
 102
 103                 if (xNewStream.is())
 104                 {
 105                     WW8Stream::Pointer_t
 106                         pNew(new WW8StreamImpl(mrComponentContext,
 107                                                xNewStream->getInputStream()));
 108
 109                     pResult = pNew;
 110                 }
 111             }
 112         }
 113     }
 114     catch (...)
 115     {
 116     }
 117
 118     if (pResult.get() == NULL)
 119         throw ExceptionNotFound("Stream not found");
 120
 121     return pResult;
 122 }
 123
 124 string WW8StreamImpl::getSubStreamNames() const
 125 {
 126     string sResult;
 127
 128     if (xOLESimpleStorage.is())
 129     {
 130         uno::Sequence<OUString> aSeq = xOLESimpleStorage->getElementNames();
 131
 132         for (sal_uInt32 n = 0;
 133              n < sal::static_int_cast<sal_uInt32>(aSeq.getLength()); ++n)
 134         {
 135             OUString aOUStr = aSeq[n];
 136
 137             if (n > 0)
 138                 sResult += ", ";
 139
 140             char sBuffer[256];
 141             for (sal_uInt32 j = 0;
 142                  j < sal::static_int_cast<sal_uInt32>(aOUStr.getLength()); ++j)
 143             {
 144                 if (isprint(aOUStr[j]))
 145                 {
 146                     sal_Unicode nC = aOUStr[j];
 147
 148                     if (nC < 255)
 149                         sResult += sal::static_int_cast<char>(nC);
 150                     else
 151                         sResult += ".";
 152                 }
 153                 else
 154                 {
 155                     snprintf(sBuffer, sizeof(sBuffer), "\\u%x", aOUStr[j]);
 156                     sResult += sBuffer;
 157                 }
 158             }
 159         }
 160     }
 161
 162     return sResult;
 163 }
 164
 165 uno::Sequence<OUString> WW8StreamImpl::getSubStreamUNames() const
 166 {
 167     return xOLESimpleStorage->getElementNames();
 168 }
 169
 170 void WW8StreamImpl::dump(OutputWithDepth<string> & o) const
 171 {
 172     o.addItem("<stream>");
 173
 174     Sequence aSeq;
 175     sal_uInt32 nOffset = 0;
 176     sal_uInt32 nStep = 16;
 177
 178     do
 179     {
 180         aSeq = get(nOffset, nStep);
 181         dumpLine(o, aSeq, nOffset, nStep);
 182
 183         nOffset += nStep;
 184     }
 185     while (aSeq.getCount() == nStep);
 186
 187     o.addItem("</stream>");
 188 }
 189
 190 }}
 191
 192 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */