ucb/source/ucp/gio/gio_datasupplier.cxx

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  30
  31 #include <vector>
  32
  33 #include <ucbhelper/contentidentifier.hxx>
  34 #include <ucbhelper/providerhelper.hxx>
  35
  36 #include <com/sun/star/ucb/OpenMode.hpp>
  37
  38 #include "gio_datasupplier.hxx"
  39 #include "gio_content.hxx"
  40 #include "gio_provider.hxx"
  41
  42 #include <stdio.h>
  43
  44 using namespace com::sun::star;
  45
  46 using namespace gio;
  47
  48 namespace gio
  49 {
  50
  51 typedef std::vector< ResultListEntry* > ResultList;
  52
  53 DataSupplier::DataSupplier( const uno::Reference< lang::XMultiServiceFactory >& rxSMgr,
  54     const uno::Reference< ::gio::Content >& rContent, sal_Int32 nOpenMode )
  55     : mxContent(rContent), m_xSMgr(rxSMgr), mnOpenMode(nOpenMode), mbCountFinal(false)
  56 {
  57 }
  58
  59 bool DataSupplier::getData()
  60 {
  61     if (mbCountFinal)
  62         return true;
  63
  64     GFile *pFile = mxContent->getGFile();
  65
  66     GFileEnumerator* pEnumerator = g_file_enumerate_children(pFile, "*",
  67         G_FILE_QUERY_INFO_NONE, NULL, NULL);
  68
  69     if (!pEnumerator)
  70         return sal_False;
  71
  72     GFileInfo *pInfo = NULL;
  73     while ((pInfo = g_file_enumerator_next_file (pEnumerator, NULL, NULL)))
  74     {
  75         switch ( mnOpenMode )
  76         {
  77             case ucb::OpenMode::FOLDERS:
  78                 if (g_file_info_get_file_type(pInfo) != G_FILE_TYPE_DIRECTORY)
  79                     continue;
  80                 break;
  81             case ucb::OpenMode::DOCUMENTS:
  82                 if (g_file_info_get_file_type(pInfo) != G_FILE_TYPE_REGULAR)
  83                     continue;
  84                 break;
  85             case ucb::OpenMode::ALL:
  86             default:
  87                 break;
  88         }
  89
  90         maResults.push_back( new ResultListEntry( pInfo ) );
  91         g_object_unref(pInfo);
  92     }
  93
  94     mbCountFinal = sal_True;
  95
  96     g_file_enumerator_close(pEnumerator, NULL, NULL);
  97     return true;
  98 }
  99
 100 DataSupplier::~DataSupplier()
 101 {
 102     ResultList::const_iterator it  = maResults.begin();
 103     ResultList::const_iterator end = maResults.end();
 104
 105     while ( it != end )
 106     {
 107         delete (*it);
 108         it++;
 109     }
 110 }
 111
 112 ::rtl::OUString DataSupplier::queryContentIdentifierString( sal_uInt32 nIndex )
 113 {
 114     if ( nIndex < maResults.size() )
 115     {
 116         ::rtl::OUString aId = maResults[ nIndex ]->aId;
 117         if ( aId.getLength() )
 118         {
 119             // Already cached.
 120             return aId;
 121         }
 122     }
 123
 124     if ( getResult( nIndex ) )
 125     {
 126         GFile *pFile = mxContent->getGFile();
 127         char* parent = g_file_get_uri(pFile);
 128         rtl::OUString aId = rtl::OUString::createFromAscii( parent );
 129         g_free(parent);
 130
 131         char *escaped_name =
 132             g_uri_escape_string( g_file_info_get_name(maResults[ nIndex ]->pInfo) , NULL, false);
 133
 134         if ( ( aId.lastIndexOf( '/' ) + 1 ) != aId.getLength() )
 135                 aId += rtl::OUString::createFromAscii( "/" );
 136
 137         aId += rtl::OUString::createFromAscii( escaped_name );
 138
 139         g_free( escaped_name );
 140
 141         maResults[ nIndex ]->aId = aId;
 142         return aId;
 143
 144         return aId;
 145     }
 146
 147     return ::rtl::OUString();
 148 }
 149
 150 uno::Reference< ucb::XContentIdentifier > DataSupplier::queryContentIdentifier( sal_uInt32 nIndex )
 151 {
 152     if ( nIndex < maResults.size() )
 153     {
 154         uno::Reference< ucb::XContentIdentifier > xId = maResults[ nIndex ]->xId;
 155         if ( xId.is() )
 156         {
 157             // Already cached.
 158             return xId;
 159         }
 160     }
 161
 162     ::rtl::OUString aId = queryContentIdentifierString( nIndex );
 163     if ( aId.getLength() )
 164     {
 165         uno::Reference< ucb::XContentIdentifier > xId = new ucbhelper::ContentIdentifier( aId );
 166         maResults[ nIndex ]->xId = xId;
 167         return xId;
 168     }
 169
 170     return uno::Reference< ucb::XContentIdentifier >();
 171 }
 172
 173 uno::Reference< ucb::XContent > DataSupplier::queryContent( sal_uInt32 nIndex )
 174 {
 175     if ( nIndex < maResults.size() )
 176     {
 177         uno::Reference< ucb::XContent > xContent = maResults[ nIndex ]->xContent;
 178         if ( xContent.is() )
 179         {
 180             // Already cached.
 181             return xContent;
 182         }
 183     }
 184
 185     uno::Reference< ucb::XContentIdentifier > xId = queryContentIdentifier( nIndex );
 186     if ( xId.is() )
 187     {
 188         try
 189         {
 190             uno::Reference< ucb::XContent > xContent = mxContent->getProvider()->queryContent( xId );
 191             maResults[ nIndex ]->xContent = xContent;
 192             return xContent;
 193         }
 194         catch ( ucb::IllegalIdentifierException& )
 195         {
 196         }
 197     }
 198     return uno::Reference< ucb::XContent >();
 199 }
 200
 201 sal_Bool DataSupplier::getResult( sal_uInt32 nIndex )
 202 {
 203     if ( maResults.size() > nIndex ) // Result already present.
 204         return sal_True;
 205
 206     if ( getData() && maResults.size() > nIndex )
 207         return sal_True;
 208
 209     return sal_False;
 210 }
 211
 212 sal_uInt32 DataSupplier::totalCount()
 213 {
 214     getData();
 215     return maResults.size();
 216 }
 217
 218 sal_uInt32 DataSupplier::currentCount()
 219 {
 220     return maResults.size();
 221 }
 222
 223 sal_Bool DataSupplier::isCountFinal()
 224 {
 225     return mbCountFinal;
 226 }
 227
 228 uno::Reference< sdbc::XRow > DataSupplier::queryPropertyValues( sal_uInt32 nIndex  )
 229 {
 230     if ( nIndex < maResults.size() )
 231     {
 232         uno::Reference< sdbc::XRow > xRow = maResults[ nIndex ]->xRow;
 233         if ( xRow.is() )
 234         {
 235             // Already cached.
 236             return xRow;
 237         }
 238     }
 239
 240     if ( getResult( nIndex ) )
 241     {
 242         uno::Reference< sdbc::XRow > xRow = Content::getPropertyValuesFromGFileInfo(
 243             maResults[ nIndex ]->pInfo, m_xSMgr, getResultSet()->getProperties());
 244
 245         maResults[ nIndex ]->xRow = xRow;
 246         return xRow;
 247     }
 248     return uno::Reference< sdbc::XRow >();
 249 }
 250
 251 void DataSupplier::releasePropertyValues( sal_uInt32 nIndex )
 252 {
 253     if ( nIndex < maResults.size() )
 254         maResults[ nIndex ]->xRow = uno::Reference< sdbc::XRow >();
 255 }
 256
 257 void DataSupplier::close()
 258 {
 259 }
 260
 261 void DataSupplier::validate() throw( ucb::ResultSetException )
 262 {
 263 }
 264
 265 }