writerfilter/source/doctok/WW8StreamImpl.cxx

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  30
  31 #include <WW8StreamImpl.hxx>
  32
  33 #include <com/sun/star/uno/Reference.h>
  34 #include <com/sun/star/io/XSeekable.hpp>
  35 #include <com/sun/star/io/XStream.hpp>
  36 #include <com/sun/star/lang/XMultiComponentFactory.hpp>
  37
  38 #include <doctokLoggers.hxx>
  39
  40 namespace writerfilter {
  41 namespace doctok
  42 {
  43 using namespace ::com::sun::star;
  44
  45     TagLogger::Pointer_t debug_logger(TagLogger::getInstance("DEBUG"));
  46
  47 WW8Stream::~WW8Stream()
  48 {
  49 }
  50
  51 WW8StreamImpl::WW8StreamImpl(uno::Reference<uno::XComponentContext> rContext,
  52               uno::Reference<io::XInputStream> rStream)
  53 : mrComponentContext(rContext), mrStream(rStream)
  54 {
  55     xFactory = uno::Reference<lang::XMultiComponentFactory>
  56         (mrComponentContext->getServiceManager());
  57
  58     uno::Sequence<uno::Any> aArgs( 1 );
  59     aArgs[0] <<= mrStream;
  60
  61     xOLESimpleStorage = uno::Reference<container::XNameContainer>
  62         (xFactory->createInstanceWithArgumentsAndContext
  63          (::rtl::OUString::createFromAscii
  64           ("com.sun.star.embed.OLESimpleStorage"),
  65           aArgs, mrComponentContext ),
  66          uno::UNO_QUERY );
  67
  68 }
  69
  70 WW8StreamImpl::~WW8StreamImpl()
  71 {
  72 }
  73
  74 WW8Stream::Sequence WW8StreamImpl::get(sal_uInt32 nOffset,
  75                                        sal_uInt32 nCount) const
  76 {
  77     uno::Sequence<sal_Int8> aSequence;
  78
  79     if (nCount > 0)
  80     {
  81         uno::Reference< io::XSeekable > xSeek( mrStream, uno::UNO_QUERY_THROW );
  82
  83         xSeek->seek(nOffset);
  84
  85         sal_Int32 nRead = mrStream->readBytes(aSequence, nCount);
  86
  87         Sequence aReturnSequence(const_cast<const sal_uInt8 *>
  88                                  (reinterpret_cast<sal_uInt8 *>
  89                                   (&(aSequence[0]))), nRead);
  90
  91         return aReturnSequence;
  92     }
  93
  94     return WW8Stream::Sequence();
  95 }
  96
  97 WW8Stream::Pointer_t WW8StreamImpl::getSubStream(const ::rtl::OUString & sId)
  98 {
  99     WW8Stream::Pointer_t pResult;
 100
 101     try
 102     {
 103         if (xOLESimpleStorage.is())
 104         {
 105             if (xOLESimpleStorage->hasByName(sId))
 106             {
 107                 uno::Reference<io::XStream> xNewStream;
 108                 {
 109                     uno::Any aValue = xOLESimpleStorage->getByName(sId);
 110                     aValue >>= xNewStream;
 111                 }
 112
 113                 if (xNewStream.is())
 114                 {
 115                     WW8Stream::Pointer_t
 116                         pNew(new WW8StreamImpl(mrComponentContext,
 117                                                xNewStream->getInputStream()));
 118
 119                     pResult = pNew;
 120                 }
 121             }
 122         }
 123     }
 124     catch (...)
 125     {
 126     }
 127
 128     if (pResult.get() == NULL)
 129         throw ExceptionNotFound("Stream not found");
 130
 131     return pResult;
 132 }
 133
 134 string WW8StreamImpl::getSubStreamNames() const
 135 {
 136     string sResult;
 137
 138     if (xOLESimpleStorage.is())
 139     {
 140         uno::Sequence<rtl::OUString> aSeq = xOLESimpleStorage->getElementNames();
 141
 142         for (sal_uInt32 n = 0;
 143              n < sal::static_int_cast<sal_uInt32>(aSeq.getLength()); ++n)
 144         {
 145             rtl::OUString aOUStr = aSeq[n];
 146
 147             if (n > 0)
 148                 sResult += ", ";
 149
 150 #if 0
 151             rtl::OString aOStr;
 152             aOUStr.convertToString(&aOStr, RTL_TEXTENCODING_ASCII_US,
 153                                     OUSTRING_TO_OSTRING_CVTFLAGS);
 154
 155
 156             sResult += aOStr.getStr();
 157 #endif
 158             char sBuffer[256];
 159             for (sal_uInt32 j = 0;
 160                  j < sal::static_int_cast<sal_uInt32>(aOUStr.getLength()); ++j)
 161             {
 162                 if (isprint(aOUStr[j]))
 163                 {
 164                     sal_Unicode nC = aOUStr[j];
 165
 166                     if (nC < 255)
 167                         sResult += sal::static_int_cast<char>(nC);
 168                     else
 169                         sResult += ".";
 170                 }
 171                 else
 172                 {
 173                     snprintf(sBuffer, sizeof(sBuffer), "\\u%x", aOUStr[j]);
 174                     sResult += sBuffer;
 175                 }
 176             }
 177         }
 178     }
 179
 180     return sResult;
 181 }
 182
 183 uno::Sequence<rtl::OUString> WW8StreamImpl::getSubStreamUNames() const
 184 {
 185     return xOLESimpleStorage->getElementNames();
 186 }
 187
 188 void WW8StreamImpl::dump(OutputWithDepth<string> & o) const
 189 {
 190     o.addItem("<stream>");
 191
 192     Sequence aSeq;
 193     sal_uInt32 nOffset = 0;
 194     sal_uInt32 nStep = 16;
 195
 196     do
 197     {
 198         aSeq = get(nOffset, nStep);
 199         dumpLine(o, aSeq, nOffset, nStep);
 200
 201         nOffset += nStep;
 202     }
 203     while (aSeq.getCount() == nStep);
 204
 205     o.addItem("</stream>");
 206 }
 207
 208 }}