| Index: trunk/extensions/SemanticMediaWiki/specials/Export/SMW_SpecialOWLExport.php |
| — | — | @@ -9,6 +9,7 @@ |
| 10 | 10 | * @ingroup SpecialPage |
| 11 | 11 | * |
| 12 | 12 | * @author Markus Krötzsch |
| | 13 | + * @author Jeroen De Dauw |
| 13 | 14 | */ |
| 14 | 15 | |
| 15 | 16 | if ( !defined( 'MEDIAWIKI' ) ) { |
| — | — | @@ -39,17 +40,19 @@ |
| 40 | 41 | $recursive = 0; // default, no recursion |
| 41 | 42 | $backlinks = $smwgExportBacklinks; // default |
| 42 | 43 | |
| 43 | | - // check whether we already know what to export // |
| 44 | | - |
| 45 | | - if ( $page == '' ) { // try to get GET parameter; simple way of calling the export |
| | 44 | + // Check whether we already know what to export. |
| | 45 | + if ( $page == '' ) { |
| | 46 | + // Try to get GET parameter; simple way of calling the export. |
| 46 | 47 | $page = $wgRequest->getVal( 'page' ); |
| 47 | 48 | } else { |
| 48 | | - // this is needed since MediaWiki 1.8, but it is wrong for 1.7 |
| | 49 | + // This is needed since MediaWiki 1.8, but it is wrong for 1.7. |
| 49 | 50 | $page = rawurldecode( $page ); |
| 50 | 51 | } |
| 51 | 52 | |
| 52 | | - if ( $page == '' ) { // try to get POST list; some settings are only available via POST |
| | 53 | + if ( $page == '' ) { |
| | 54 | + // Try to get POST list; some settings are only available via POST. |
| 53 | 55 | $pageblob = $wgRequest->getText( 'pages' ); |
| | 56 | + |
| 54 | 57 | if ( $pageblob != '' ) { |
| 55 | 58 | $pages = explode( "\n", $pageblob ); |
| 56 | 59 | } |
| — | — | @@ -69,45 +72,61 @@ |
| 70 | 73 | header( "Content-type: application/xml; charset=UTF-8" ); |
| 71 | 74 | } |
| 72 | 75 | |
| 73 | | - if ( $wgRequest->getText( 'postform' ) == 1 ) { |
| 74 | | - $postform = true; // effect: assume "no" from missing parameters generated by checkboxes |
| 75 | | - } else $postform = false; |
| | 76 | + // Effect: assume "no" from missing parameters generated by checkboxes. |
| | 77 | + $postform = $wgRequest->getText( 'postform' ) == 1; |
| 76 | 78 | |
| 77 | 79 | $rec = $wgRequest->getText( 'recursive' ); |
| | 80 | + |
| 78 | 81 | if ( $rec == '' ) $rec = $wgRequest->getVal( 'recursive' ); |
| | 82 | + |
| 79 | 83 | if ( ( $rec == '1' ) && ( $smwgAllowRecursiveExport || $wgUser->isAllowed( 'delete' ) ) ) { |
| 80 | 84 | $recursive = 1; // users may be allowed to switch it on |
| 81 | 85 | } |
| | 86 | + |
| 82 | 87 | $bl = $wgRequest->getText( 'backlinks' ); |
| | 88 | + |
| 83 | 89 | if ( $bl == '' ) $bl = $wgRequest->getVal( 'backlinks' ); |
| | 90 | + |
| 84 | 91 | if ( ( $bl == '1' ) && ( $wgUser->isAllowed( 'delete' ) ) ) { |
| 85 | 92 | $backlinks = true; // admins can always switch on backlinks |
| 86 | 93 | } elseif ( ( $bl == '0' ) || ( '' == $bl && $postform ) ) { |
| 87 | 94 | $backlinks = false; // everybody can explicitly switch off backlinks |
| 88 | 95 | } |
| | 96 | + |
| 89 | 97 | $date = $wgRequest->getText( 'date' ); |
| | 98 | + |
| 90 | 99 | if ( $date == '' ) $date = $wgRequest->getVal( 'date' ); |
| 91 | 100 | |
| 92 | | - $exp = new OWLExport(); |
| | 101 | + $exp = new SMWOWLExport(); |
| | 102 | + |
| 93 | 103 | if ( $date != '' ) $exp->setDate( $date ); |
| | 104 | + |
| 94 | 105 | $exp->printPages( $pages, $recursive, $backlinks ); |
| | 106 | + |
| 95 | 107 | return; |
| 96 | 108 | } else { |
| 97 | 109 | $offset = $wgRequest->getVal( 'offset' ); |
| | 110 | + |
| 98 | 111 | if ( isset( $offset ) ) { |
| 99 | 112 | $wgOut->disable(); |
| | 113 | + |
| 100 | 114 | ob_start(); |
| 101 | 115 | header( "Content-type: application/xml; charset=UTF-8" ); |
| 102 | | - $exp = new OWLExport(); |
| | 116 | + |
| | 117 | + $exp = new SMWOWLExport(); |
| 103 | 118 | $exp->printPageList( $offset ); |
| | 119 | + |
| 104 | 120 | return; |
| 105 | 121 | } else { |
| 106 | 122 | $stats = $wgRequest->getVal( 'stats' ); |
| | 123 | + |
| 107 | 124 | if ( isset( $stats ) ) { |
| 108 | 125 | $wgOut->disable(); |
| | 126 | + |
| 109 | 127 | ob_start(); |
| 110 | 128 | header( "Content-type: application/xml; charset=UTF-8" ); |
| 111 | | - $exp = new OWLExport(); |
| | 129 | + |
| | 130 | + $exp = new SMWOWLExport(); |
| 112 | 131 | $exp->printWikiInfo(); |
| 113 | 132 | } |
| 114 | 133 | } |
| — | — | @@ -120,722 +139,23 @@ |
| 121 | 140 | '<p>' . wfMsg( 'smw_exportrdf_docu' ) . "</p>\n" . |
| 122 | 141 | '<input type="hidden" name="postform" value="1"/>' . "\n" . |
| 123 | 142 | '<textarea name="pages" cols="40" rows="10"></textarea><br />' . "\n"; |
| | 143 | + |
| 124 | 144 | if ( $wgUser->isAllowed( 'delete' ) || $smwgAllowRecursiveExport ) { |
| 125 | 145 | $html .= '<input type="checkbox" name="recursive" value="1" id="rec"> <label for="rec">' . wfMsg( 'smw_exportrdf_recursive' ) . '</label></input><br />' . "\n"; |
| 126 | 146 | } |
| | 147 | + |
| 127 | 148 | if ( $wgUser->isAllowed( 'delete' ) || $smwgExportBacklinks ) { |
| 128 | 149 | $html .= '<input type="checkbox" name="backlinks" value="1" default="true" id="bl"> <label for="bl">' . wfMsg( 'smw_exportrdf_backlinks' ) . '</label></input><br />' . "\n"; |
| 129 | 150 | } |
| | 151 | + |
| 130 | 152 | if ( $wgUser->isAllowed( 'delete' ) || $smwgExportAll ) { |
| 131 | 153 | $html .= '<br />'; |
| 132 | 154 | $html .= '<input type="text" name="date" value="' . date( DATE_W3C, mktime( 0, 0, 0, 1, 1, 2000 ) ) . '" id="date"> <label for="ea">' . wfMsg( 'smw_exportrdf_lastdate' ) . '</label></input><br />' . "\n"; |
| 133 | 155 | } |
| | 156 | + |
| 134 | 157 | $html .= "<br /><input type=\"submit\" value=\"" . wfMsg( 'smw_exportrdf_submit' ) . "\"/>\n</form>"; |
| | 158 | + |
| 135 | 159 | $wgOut->addHTML( $html ); |
| 136 | 160 | } |
| 137 | 161 | |
| 138 | | -} |
| 139 | | - |
| 140 | | -/** |
| 141 | | - * Small data object holding the bare essentials of one title. |
| 142 | | - * Used to store processed and open pages for export. |
| 143 | | - * @ingroup SMW |
| 144 | | - */ |
| 145 | | -class SMWSmallTitle { |
| 146 | | - public $dbkey; |
| 147 | | - public $namespace; // MW namespace constant |
| 148 | | - public $modifier = ''; // e.g. a unit string |
| 149 | | - |
| 150 | | - public function getHash() { |
| 151 | | - return $this->dbkey . ' ' . $this->namespace . ' ' . $this->modifier; |
| 152 | | - } |
| 153 | | -} |
| 154 | | - |
| 155 | | - |
| 156 | | -/** |
| 157 | | - * Class for encapsulating the methods for RDF export. |
| 158 | | - * @ingroup SMW |
| 159 | | - */ |
| 160 | | -class OWLExport { |
| 161 | | - /**#@+ |
| 162 | | - * @access private |
| 163 | | - */ |
| 164 | | - |
| 165 | | - const MAX_CACHE_SIZE = 5000; // do not let cache arrays get larger than this |
| 166 | | - const CACHE_BACKJUMP = 500; // kill this many cached entries if limit is reached, |
| 167 | | - // avoids too much array copying; <= MAX_CACHE_SIZE! |
| 168 | | - |
| 169 | | - /** |
| 170 | | - * An array that keeps track of the elements for which we still need to |
| 171 | | - * write auxilliary definitions. |
| 172 | | - */ |
| 173 | | - private $element_queue; |
| 174 | | - |
| 175 | | - /** |
| 176 | | - * An array that keeps track of the elements which have been exported already |
| 177 | | - */ |
| 178 | | - private $element_done; |
| 179 | | - |
| 180 | | - /** |
| 181 | | - * Date used to filter the export. If a page has not been changed since that |
| 182 | | - * date it will not be exported |
| 183 | | - */ |
| 184 | | - private $date; |
| 185 | | - |
| 186 | | - /** |
| 187 | | - * Array of additional namespaces (abbreviation => URI), flushed on |
| 188 | | - * closing the current namespace tag. Since we export RDF in a streamed |
| 189 | | - * way, it is not always possible to embed additional namespaces into |
| 190 | | - * the RDF-tag which might have been sent to the client already. But we |
| 191 | | - * wait with printing the current Description so that extra namespaces |
| 192 | | - * from this array can still be printed (note that you never know which |
| 193 | | - * extra namespaces you encounter during export). |
| 194 | | - */ |
| 195 | | - private $extra_namespaces; |
| 196 | | - |
| 197 | | - /** |
| 198 | | - * Array of namespaces that have been declared globally already. Contains |
| 199 | | - * entries of format 'namespace abbreviation' => true, assuming that the |
| 200 | | - * same abbreviation always refers to the same URI (i.e. you cannot import |
| 201 | | - * something as rdf:bla if you do not want rdf to be the standard |
| 202 | | - * namespace that is already given in every RDF export). |
| 203 | | - */ |
| 204 | | - private $global_namespaces; |
| 205 | | - |
| 206 | | - /** |
| 207 | | - * Unprinted XML is composed from the strings $pre_ns_buffer and $post_ns_buffer. |
| 208 | | - * The split between the two is such that one can append additional namespace |
| 209 | | - * declarations to $pre_ns_buffer so that they affect all current elements. The |
| 210 | | - * buffers are flushed during output in order to achieve "streaming" RDF export |
| 211 | | - * for larger files. |
| 212 | | - */ |
| 213 | | - private $pre_ns_buffer; |
| 214 | | - |
| 215 | | - /** |
| 216 | | - * See documentation for OWLExport::pre_ns_buffer. |
| 217 | | - */ |
| 218 | | - private $post_ns_buffer; |
| 219 | | - |
| 220 | | - /** |
| 221 | | - * Boolean that is true as long as nothing was flushed yet. Indicates that |
| 222 | | - * extra namespaces can still become global. |
| 223 | | - */ |
| 224 | | - private $first_flush; |
| 225 | | - |
| 226 | | - /** |
| 227 | | - * Integer that counts down the number of objects we still process before |
| 228 | | - * doing the first flush. Aggregating some output before flushing is useful |
| 229 | | - * to get more namespaces global. Flushing will only happen if $delay_flush |
| 230 | | - * is 0. |
| 231 | | - */ |
| 232 | | - private $delay_flush; |
| 233 | | - |
| 234 | | - /** |
| 235 | | - * Constructor. |
| 236 | | - */ |
| 237 | | - public function __construct() { |
| 238 | | - $this->element_queue = array(); |
| 239 | | - $this->element_done = array(); |
| 240 | | - $this->date = ''; |
| 241 | | - } |
| 242 | | - |
| 243 | | - /** |
| 244 | | - * Sets a date as a filter. Any page that has not been changed since that date |
| 245 | | - * will not be exported. The date has to be a string in XML Schema format. |
| 246 | | - */ |
| 247 | | - public function setDate( $date ) { |
| 248 | | - $timeint = strtotime( $date ); |
| 249 | | - $stamp = date( "YmdHis", $timeint ); |
| 250 | | - $this->date = $stamp; |
| 251 | | - } |
| 252 | | - |
| 253 | | - /** |
| 254 | | - * This function prints all selected pages. The parameter $recursion determines |
| 255 | | - * how referenced ressources are treated: |
| 256 | | - * '0' : add brief declarations for each |
| 257 | | - * '1' : add full descriptions for each, thus beginning real recursion (and |
| 258 | | - * probably retrieving the whole wiki ...) |
| 259 | | - * else: ignore them, though -1 might become a synonym for "export *all*" in the future |
| 260 | | - * The parameter $backlinks determines whether or not subjects of incoming |
| 261 | | - * properties are exported as well. Enables "browsable RDF." |
| 262 | | - */ |
| 263 | | - public function printPages( $pages, $recursion = 1, $backlinks = true ) { |
| 264 | | - wfProfileIn( "RDF::PrintPages" ); |
| 265 | | - |
| 266 | | - $linkCache =& LinkCache::singleton(); |
| 267 | | - $this->pre_ns_buffer = ''; |
| 268 | | - $this->post_ns_buffer = ''; |
| 269 | | - $this->first_flush = true; |
| 270 | | - $this->delay_flush = 10; // flush only after (fully) printing 11 objects |
| 271 | | - $this->extra_namespaces = array(); |
| 272 | | - |
| 273 | | - if ( count( $pages ) == 1 ) { // ensure that ontologies that are retrieved as linked data are not confused with their subject! |
| 274 | | - $ontologyuri = SMWExporter::expandURI( '&export;' ) . '/' . urlencode( end( $pages ) ); |
| 275 | | - } else { // use empty URI, i.e. "location" as URI otherwise |
| 276 | | - $ontologyuri = ''; |
| 277 | | - } |
| 278 | | - $this->printHeader( $ontologyuri ); // also inits global namespaces |
| 279 | | - |
| 280 | | - wfProfileIn( "RDF::PrintPages::PrepareQueue" ); |
| 281 | | - // transform pages into queued export titles |
| 282 | | - $cur_queue = array(); |
| 283 | | - foreach ( $pages as $page ) { |
| 284 | | - $title = Title::newFromText( $page ); |
| 285 | | - if ( null === $title ) continue; // invalid title name given |
| 286 | | - $st = new SMWSmallTitle(); |
| 287 | | - $st->dbkey = $title->getDBkey(); |
| 288 | | - $st->namespace = $title->getNamespace(); |
| 289 | | - $cur_queue[] = $st; |
| 290 | | - } |
| 291 | | - wfProfileOut( "RDF::PrintPages::PrepareQueue" ); |
| 292 | | - |
| 293 | | - while ( count( $cur_queue ) > 0 ) { |
| 294 | | - // first, print all selected pages |
| 295 | | - foreach ( $cur_queue as $st ) { |
| 296 | | - wfProfileIn( "RDF::PrintPages::PrintOne" ); |
| 297 | | - $this->printObject( $st, true, $backlinks ); |
| 298 | | - wfProfileOut( "RDF::PrintPages::PrintOne" ); |
| 299 | | - if ( $this->delay_flush > 0 ) $this->delay_flush--; |
| 300 | | - } |
| 301 | | - // prepare array for next iteration |
| 302 | | - $cur_queue = array(); |
| 303 | | - if ( 1 == $recursion ) { |
| 304 | | - $cur_queue = $this->element_queue + $cur_queue; // make sure the array is *dublicated* instead of copying its ref |
| 305 | | - $this->element_queue = array(); |
| 306 | | - } |
| 307 | | - $linkCache->clear(); |
| 308 | | - } |
| 309 | | - |
| 310 | | - // for pages not processed recursively, print at least basic declarations |
| 311 | | - wfProfileIn( "RDF::PrintPages::Auxiliary" ); |
| 312 | | - $this->date = ''; // no date restriction for the rest! |
| 313 | | - |
| 314 | | - if ( !empty( $this->element_queue ) ) { |
| 315 | | - if ( $this->pre_ns_buffer != '' ) { |
| 316 | | - $this->post_ns_buffer .= "\t<!-- auxiliary definitions -->\n"; |
| 317 | | - } else { |
| 318 | | - print "\t<!-- auxiliary definitions -->\n"; // just print this comment, so that later outputs still find the empty pre_ns_buffer! |
| 319 | | - } |
| 320 | | - |
| 321 | | - while ( !empty( $this->element_queue ) ) { |
| 322 | | - $st = array_pop( $this->element_queue ); |
| 323 | | - $this->printObject( $st, false, false ); |
| 324 | | - } |
| 325 | | - } |
| 326 | | - |
| 327 | | - wfProfileOut( "RDF::PrintPages::Auxiliary" ); |
| 328 | | - $this->printFooter(); |
| 329 | | - $this->flushBuffers( true ); |
| 330 | | - wfProfileOut( "RDF::PrintPages" ); |
| 331 | | - } |
| 332 | | - |
| 333 | | - /** |
| 334 | | - * This function prints RDF for *all* pages within the wiki, and for all |
| 335 | | - * elements that are referred to in the exported RDF. |
| 336 | | - */ |
| 337 | | - public function printAll( $outfile, $ns_restriction = false, $delay, $delayeach ) { |
| 338 | | - global $smwgNamespacesWithSemanticLinks; |
| 339 | | - $linkCache =& LinkCache::singleton(); |
| 340 | | - |
| 341 | | - $db = & wfGetDB( DB_MASTER ); |
| 342 | | - $this->pre_ns_buffer = ''; |
| 343 | | - $this->post_ns_buffer = ''; |
| 344 | | - $this->first_flush = true; |
| 345 | | - if ( $outfile === false ) { |
| 346 | | - // $this->delay_flush = 10000; //flush only after (fully) printing 10001 objects, |
| 347 | | - $this->delay_flush = - 1; // do not flush buffer at all |
| 348 | | - } else { |
| 349 | | - $file = fopen( $outfile, 'w' ); |
| 350 | | - if ( !$file ) { |
| 351 | | - print "\nCannot open \"$outfile\" for writing.\n"; |
| 352 | | - return false; |
| 353 | | - } |
| 354 | | - $this->delay_flush = - 1; // never flush, we flush in another way |
| 355 | | - } |
| 356 | | - $this->extra_namespaces = array(); |
| 357 | | - $this->printHeader(); // also inits global namespaces |
| 358 | | - |
| 359 | | - $start = 1; |
| 360 | | - $end = $db->selectField( 'page', 'max(page_id)', false, $outfile ); |
| 361 | | - |
| 362 | | - $a_count = 0; $d_count = 0; // DEBUG |
| 363 | | - |
| 364 | | - $delaycount = $delayeach; |
| 365 | | - for ( $id = $start; $id <= $end; $id++ ) { |
| 366 | | - $title = Title::newFromID( $id ); |
| 367 | | - if ( ( $title === null ) || !smwfIsSemanticsProcessed( $title->getNamespace() ) ) continue; |
| 368 | | - if ( !OWLExport::fitsNsRestriction( $ns_restriction, $title->getNamespace() ) ) continue; |
| 369 | | - $st = new SMWSmallTitle(); |
| 370 | | - $st->dbkey = $title->getDBkey(); |
| 371 | | - $st->namespace = $title->getNamespace(); |
| 372 | | - $cur_queue = array( $st ); |
| 373 | | - $a_count++; // DEBUG |
| 374 | | - $full_export = true; |
| 375 | | - while ( count( $cur_queue ) > 0 ) { |
| 376 | | - foreach ( $cur_queue as $st ) { |
| 377 | | - wfProfileIn( "RDF::PrintAll::PrintOne" ); |
| 378 | | - $this->printObject( $st, $full_export, false ); |
| 379 | | - wfProfileOut( "RDF::PrintAll::PrintOne" ); |
| 380 | | - } |
| 381 | | - $full_export = false; // make sure added dependencies do not pull more than needed |
| 382 | | - // resolve dependencies that will otherwise not be printed |
| 383 | | - $cur_queue = array(); |
| 384 | | - foreach ( $this->element_queue as $key => $staux ) { |
| 385 | | - $taux = Title::makeTitle( $staux->namespace, $staux->dbkey ); |
| 386 | | - if ( !smwfIsSemanticsProcessed( $staux->namespace ) || ( $staux->modifier !== '' ) || |
| 387 | | - !OWLExport::fitsNsRestriction( $ns_restriction, $staux->namespace ) || |
| 388 | | - ( !$taux->exists() ) ) { |
| 389 | | - // Note: we do not need to check the cache to guess if an element was already |
| 390 | | - // printed. If so, it would not be included in the queue in the first place. |
| 391 | | - $cur_queue[] = $staux; |
| 392 | | -// $this->post_ns_buffer .= "<!-- Adding dependency '" . $staux->getHash() . "' -->"; //DEBUG |
| 393 | | - $d_count++; // DEBUG |
| 394 | | - } else { |
| 395 | | - unset( $this->element_queue[$key] ); // carrying around the values we do not |
| 396 | | - // want to export now is a potential memory leak |
| 397 | | - } |
| 398 | | - } |
| 399 | | - // sleep each $delaycount for $delay ms to be nice to the server |
| 400 | | - if ( ( $delaycount-- < 0 ) && ( $delayeach != 0 ) ) { |
| 401 | | - usleep( $delay ); |
| 402 | | - $delaycount = $delayeach; |
| 403 | | - } |
| 404 | | - } |
| 405 | | - if ( $outfile !== false ) { // flush buffer |
| 406 | | - fwrite( $file, $this->post_ns_buffer ); |
| 407 | | - $this->post_ns_buffer = ''; |
| 408 | | - } |
| 409 | | - $linkCache->clear(); |
| 410 | | - } |
| 411 | | - // DEBUG: |
| 412 | | - $this->post_ns_buffer .= "<!-- Processed $a_count regular articles. -->\n"; |
| 413 | | - $this->post_ns_buffer .= "<!-- Processed $d_count added dependencies. -->\n"; |
| 414 | | - $this->post_ns_buffer .= "<!-- Final cache size was " . sizeof( $this->element_done ) . ". -->\n"; |
| 415 | | - |
| 416 | | - $this->printFooter(); |
| 417 | | - |
| 418 | | - if ( $outfile === false ) { |
| 419 | | - $this->flushBuffers( true ); |
| 420 | | - } else { // prepend headers to file, there is no really efficient solution (`cat(1)`) for this it seems |
| 421 | | - // print head: |
| 422 | | - fclose( $file ); |
| 423 | | - foreach ( $this->extra_namespaces as $nsshort => $nsuri ) { |
| 424 | | - $this->pre_ns_buffer .= "\n\txmlns:$nsshort=\"$nsuri\""; |
| 425 | | - } |
| 426 | | - $full_export = file_get_contents( $outfile ); |
| 427 | | - $full_export = $this->pre_ns_buffer . $full_export . $this->post_ns_buffer; |
| 428 | | - $file = fopen( $outfile, 'w' ); |
| 429 | | - fwrite( $file, $full_export ); |
| 430 | | - fclose( $file ); |
| 431 | | - } |
| 432 | | - } |
| 433 | | - |
| 434 | | - /** |
| 435 | | - * Print basic definitions a list of pages ordered by their page id. |
| 436 | | - * Offset and limit refer to the count of existing pages, not to the |
| 437 | | - * page id. |
| 438 | | - */ |
| 439 | | - public function printPageList( $offset = 0, $limit = 30 ) { |
| 440 | | - wfProfileIn( "RDF::PrintPageList" ); |
| 441 | | - |
| 442 | | - $db = & wfGetDB( DB_MASTER ); |
| 443 | | - $this->pre_ns_buffer = ''; |
| 444 | | - $this->post_ns_buffer = ''; |
| 445 | | - $this->first_flush = true; |
| 446 | | - $this->delay_flush = 10; // flush only after (fully) printing 11 objects |
| 447 | | - $this->extra_namespaces = array(); |
| 448 | | - $this->printHeader(); // also inits global namespaces |
| 449 | | - $linkCache =& LinkCache::singleton(); |
| 450 | | - |
| 451 | | - global $smwgNamespacesWithSemanticLinks; |
| 452 | | - $query = ''; |
| 453 | | - foreach ( $smwgNamespacesWithSemanticLinks as $ns => $enabled ) { |
| 454 | | - if ( $enabled ) { |
| 455 | | - if ( $query != '' ) $query .= ' OR '; |
| 456 | | - $query .= 'page_namespace = ' . $db->addQuotes( $ns ); |
| 457 | | - } |
| 458 | | - } |
| 459 | | - $res = $db->select( $db->tableName( 'page' ), |
| 460 | | - 'page_id,page_title,page_namespace', $query |
| 461 | | - , 'SMW::RDF::PrintPageList', array( 'ORDER BY' => 'page_id ASC', 'OFFSET' => $offset, 'LIMIT' => $limit ) ); |
| 462 | | - $foundpages = false; |
| 463 | | - while ( $row = $db->fetchObject( $res ) ) { |
| 464 | | - $foundpages = true; |
| 465 | | - // $t = Title::makeTitle($row->page_namespace, $row->page_title); |
| 466 | | - // if ($t === null) continue; |
| 467 | | - // $et = new SMWExportTitle($t, $this); |
| 468 | | - $st = new SMWSmallTitle(); |
| 469 | | - $st->dbkey = $row->page_title; |
| 470 | | - $st->namespace = $row->page_namespace; |
| 471 | | - $this->printObject( $st, false, false ); |
| 472 | | - if ( $this->delay_flush > 0 ) $this->delay_flush--; |
| 473 | | - $linkCache->clear(); |
| 474 | | - } |
| 475 | | - if ( $foundpages ) { // add link to next result page |
| 476 | | - if ( strpos( SMWExporter::expandURI( '&wikiurl;' ), '?' ) === false ) { // check whether we have title as a first parameter or in URL |
| 477 | | - $nexturl = SMWExporter::expandURI( '&export;?offset=' ) . ( $offset + $limit ); |
| 478 | | - } else { |
| 479 | | - $nexturl = SMWExporter::expandURI( '&export;&offset=' ) . ( $offset + $limit ); |
| 480 | | - } |
| 481 | | - $this->post_ns_buffer .= |
| 482 | | - "\t<!-- Link to next set of results -->\n" . |
| 483 | | - "\t<owl:Thing rdf:about=\"$nexturl\">\n" . |
| 484 | | - "\t\t<rdfs:isDefinedBy rdf:resource=\"$nexturl\"/>\n" . |
| 485 | | - "\t</owl:Thing>\n"; |
| 486 | | - } |
| 487 | | - $this->printFooter(); |
| 488 | | - $this->flushBuffers( true ); |
| 489 | | - |
| 490 | | - wfProfileOut( "RDF::PrintPageList" ); |
| 491 | | - } |
| 492 | | - |
| 493 | | - |
| 494 | | - /** |
| 495 | | - * Print basic information about this site. |
| 496 | | - */ |
| 497 | | - public function printWikiInfo() { |
| 498 | | - wfProfileIn( "RDF::PrintWikiInfo" ); |
| 499 | | - global $wgSitename, $wgLanguageCode; |
| 500 | | - |
| 501 | | - $db = & wfGetDB( DB_MASTER ); |
| 502 | | - $this->pre_ns_buffer = ''; |
| 503 | | - $this->post_ns_buffer = ''; |
| 504 | | - $this->extra_namespaces = array(); |
| 505 | | - $data = new SMWExpData( new SMWExpResource( '&wiki;#wiki' ) ); |
| 506 | | - |
| 507 | | - $ed = new SMWExpData( SMWExporter::getSpecialElement( 'swivt', 'Wikisite' ) ); |
| 508 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'rdf', 'type' ), $ed ); |
| 509 | | - $ed = new SMWExpData( new SMWExpLiteral( $wgSitename ) ); |
| 510 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'rdfs', 'label' ), $ed ); |
| 511 | | - $ed = new SMWExpData( new SMWExpLiteral( $wgSitename, null, 'http://www.w3.org/2001/XMLSchema#string' ) ); |
| 512 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'siteName' ), $ed ); |
| 513 | | - $ed = new SMWExpData( new SMWExpLiteral( SMWExporter::expandURI( '&wikiurl;' ), null, 'http://www.w3.org/2001/XMLSchema#string' ) ); |
| 514 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'pagePrefix' ), $ed ); |
| 515 | | - $ed = new SMWExpData( new SMWExpLiteral( SMW_VERSION, null, 'http://www.w3.org/2001/XMLSchema#string' ) ); |
| 516 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'smwVersion' ), $ed ); |
| 517 | | - $ed = new SMWExpData( new SMWExpLiteral( $wgLanguageCode, null, 'http://www.w3.org/2001/XMLSchema#string' ) ); |
| 518 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'langCode' ), $ed ); |
| 519 | | - |
| 520 | | - // stats |
| 521 | | - $ed = new SMWExpData( new SMWExpLiteral( SiteStats::pages(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| 522 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'pageCount' ), $ed ); |
| 523 | | - $ed = new SMWExpData( new SMWExpLiteral( SiteStats::articles(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| 524 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'contentPageCount' ), $ed ); |
| 525 | | - $ed = new SMWExpData( new SMWExpLiteral( SiteStats::images(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| 526 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'mediaCount' ), $ed ); |
| 527 | | - $ed = new SMWExpData( new SMWExpLiteral( SiteStats::edits(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| 528 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'editCount' ), $ed ); |
| 529 | | - $ed = new SMWExpData( new SMWExpLiteral( SiteStats::views(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| 530 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'viewCount' ), $ed ); |
| 531 | | - $ed = new SMWExpData( new SMWExpLiteral( SiteStats::users(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| 532 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'userCount' ), $ed ); |
| 533 | | - $ed = new SMWExpData( new SMWExpLiteral( SiteStats::admins(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| 534 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'adminCount' ), $ed ); |
| 535 | | - |
| 536 | | - $mainpage = Title::newMainPage(); |
| 537 | | - if ( $mainpage !== null ) { |
| 538 | | - $ed = new SMWExpData( new SMWExpResource( $mainpage->getFullURL() ) ); |
| 539 | | - $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'mainPage' ), $ed ); |
| 540 | | - } |
| 541 | | - |
| 542 | | - |
| 543 | | - $this->printHeader(); // also inits global namespaces |
| 544 | | - $this->printExpData( $data ); |
| 545 | | - if ( strpos( SMWExporter::expandURI( '&wikiurl;' ), '?' ) === false ) { // check whether we have title as a first parameter or in URL |
| 546 | | - $nexturl = SMWExporter::expandURI( '&export;?offset=0' ); |
| 547 | | - } else { |
| 548 | | - $nexturl = SMWExporter::expandURI( '&export;&offset=0' ); |
| 549 | | - } |
| 550 | | - $this->post_ns_buffer .= |
| 551 | | - "\t<!-- Link to semantic page list -->\n" . |
| 552 | | - "\t<owl:Thing rdf:about=\"$nexturl\">\n" . |
| 553 | | - "\t\t<rdfs:isDefinedBy rdf:resource=\"$nexturl\"/>\n" . |
| 554 | | - "\t</owl:Thing>\n"; |
| 555 | | - $this->printFooter(); |
| 556 | | - $this->flushBuffers( true ); |
| 557 | | - |
| 558 | | - wfProfileOut( "RDF::PrintWikiInfo" ); |
| 559 | | - } |
| 560 | | - |
| 561 | | - /* Functions for exporting RDF */ |
| 562 | | - |
| 563 | | - protected function printHeader( $ontologyuri = '' ) { |
| 564 | | - global $wgContLang; |
| 565 | | - |
| 566 | | - $this->pre_ns_buffer .= |
| 567 | | - "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" . |
| 568 | | - "<!DOCTYPE rdf:RDF[\n" . |
| 569 | | - "\t<!ENTITY rdf '" . SMWExporter::expandURI( '&rdf;' ) . "'>\n" . |
| 570 | | - "\t<!ENTITY rdfs '" . SMWExporter::expandURI( '&rdfs;' ) . "'>\n" . |
| 571 | | - "\t<!ENTITY owl '" . SMWExporter::expandURI( '&owl;' ) . "'>\n" . |
| 572 | | - "\t<!ENTITY swivt '" . SMWExporter::expandURI( '&swivt;' ) . "'>\n" . |
| 573 | | - // A note on "wiki": this namespace is crucial as a fallback when it would be illegal to start e.g. with a number. In this case, one can always use wiki:... followed by "_" and possibly some namespace, since _ is legal as a first character. |
| 574 | | - "\t<!ENTITY wiki '" . SMWExporter::expandURI( '&wiki;' ) . "'>\n" . |
| 575 | | - "\t<!ENTITY property '" . SMWExporter::expandURI( '&property;' ) . "'>\n" . |
| 576 | | - "\t<!ENTITY wikiurl '" . SMWExporter::expandURI( '&wikiurl;' ) . "'>\n" . |
| 577 | | - "]>\n\n" . |
| 578 | | - "<rdf:RDF\n" . |
| 579 | | - "\txmlns:rdf=\"&rdf;\"\n" . |
| 580 | | - "\txmlns:rdfs=\"&rdfs;\"\n" . |
| 581 | | - "\txmlns:owl =\"&owl;\"\n" . |
| 582 | | - "\txmlns:swivt=\"&swivt;\"\n" . |
| 583 | | - "\txmlns:wiki=\"&wiki;\"\n" . |
| 584 | | - "\txmlns:property=\"&property;\""; |
| 585 | | - $this->global_namespaces = array( 'rdf' => true, 'rdfs' => true, 'owl' => true, 'swivt' => true, 'wiki' => true, 'property' => true ); |
| 586 | | - |
| 587 | | - $this->post_ns_buffer .= |
| 588 | | - ">\n\t<!-- Ontology header -->\n" . |
| 589 | | - "\t<owl:Ontology rdf:about=\"$ontologyuri\">\n" . |
| 590 | | - "\t\t<swivt:creationDate rdf:datatype=\"http://www.w3.org/2001/XMLSchema#dateTime\">" . date( DATE_W3C ) . "</swivt:creationDate>\n" . |
| 591 | | - "\t\t<owl:imports rdf:resource=\"http://semantic-mediawiki.org/swivt/1.0\" />\n" . |
| 592 | | - "\t</owl:Ontology>\n" . |
| 593 | | - "\t<!-- exported page data -->\n"; |
| 594 | | - } |
| 595 | | - |
| 596 | | - /** |
| 597 | | - * Prints the footer. |
| 598 | | - */ |
| 599 | | - protected function printFooter() { |
| 600 | | - $this->post_ns_buffer .= "\t<!-- Created by Semantic MediaWiki, http://semantic-mediawiki.org/ -->\n"; |
| 601 | | - $this->post_ns_buffer .= '</rdf:RDF>'; |
| 602 | | - } |
| 603 | | - |
| 604 | | - /** |
| 605 | | - * Serialise the given semantic data. |
| 606 | | - */ |
| 607 | | - protected function printExpData( /*SMWExpData*/ $data, $indent = '' ) { |
| 608 | | - $type = $data->extractMainType()->getQName(); |
| 609 | | - if ( '' == $this->pre_ns_buffer ) { // start new ns block |
| 610 | | - $this->pre_ns_buffer .= "\t$indent<$type"; |
| 611 | | - } else { |
| 612 | | - $this->post_ns_buffer .= "\t$indent<$type"; |
| 613 | | - } |
| 614 | | - if ( ( $data->getSubject() instanceof SMWExpLiteral ) || ( $data->getSubject() instanceof SMWExpResource ) ) { |
| 615 | | - $this->post_ns_buffer .= ' rdf:about="' . $data->getSubject()->getName() . '"'; |
| 616 | | - } // else: blank node |
| 617 | | - if ( count( $data->getProperties() ) == 0 ) { |
| 618 | | - $this->post_ns_buffer .= " />\n"; |
| 619 | | - } else { |
| 620 | | - $this->post_ns_buffer .= ">\n"; |
| 621 | | - foreach ( $data->getProperties() as $property ) { |
| 622 | | - $this->queueElement( $property ); |
| 623 | | - foreach ( $data->getValues( $property ) as $value ) { |
| 624 | | - $this->post_ns_buffer .= "\t\t$indent<" . $property->getQName(); |
| 625 | | - $this->addExtraNamespace( $property->getNamespaceID(), $property->getNamespace() ); |
| 626 | | - $object = $value->getSubject(); |
| 627 | | - if ( $object instanceof SMWExpLiteral ) { |
| 628 | | - if ( $object->getDatatype() != '' ) { |
| 629 | | - $this->post_ns_buffer .= ' rdf:datatype="' . $object->getDatatype() . '"'; |
| 630 | | - } |
| 631 | | - $this->post_ns_buffer .= '>' . |
| 632 | | - str_replace( array( '&', '>', '<' ), array( '&', '>', '<' ), $object->getName() ) . |
| 633 | | - '</' . $property->getQName() . ">\n"; |
| 634 | | - } else { // bnode or resource, may have subdescriptions |
| 635 | | - $collection = $value->getCollection(); |
| 636 | | - if ( $collection != false ) { |
| 637 | | - $this->post_ns_buffer .= " rdf:parseType=\"Collection\">\n"; |
| 638 | | - foreach ( $collection as $subvalue ) { |
| 639 | | - $this->printExpData( $subvalue, $indent . "\t\t" ); |
| 640 | | - } |
| 641 | | - $this->post_ns_buffer .= "\t\t$indent</" . $property->getQName() . ">\n"; |
| 642 | | - } elseif ( count( $value->getProperties() ) > 0 ) { |
| 643 | | - $this->post_ns_buffer .= ">\n"; |
| 644 | | - $this->printExpData( $value, $indent . "\t\t" ); |
| 645 | | - $this->post_ns_buffer .= "\t\t$indent</" . $property->getQName() . ">\n"; |
| 646 | | - } else { |
| 647 | | - if ( $object instanceof SMWExpResource ) { |
| 648 | | - $this->post_ns_buffer .= ' rdf:resource="' . $object->getName() . '"'; |
| 649 | | - $this->queueElement( $object ); // queue only non-explicated resources |
| 650 | | - } |
| 651 | | - $this->post_ns_buffer .= "/>\n"; |
| 652 | | - } |
| 653 | | - } |
| 654 | | - } |
| 655 | | - } |
| 656 | | - $this->post_ns_buffer .= "\t$indent</" . $type . ">\n"; |
| 657 | | - } |
| 658 | | - $this->flushBuffers(); |
| 659 | | - } |
| 660 | | - |
| 661 | | - /** |
| 662 | | - * Print the triples associated to a specific page, and references those needed. |
| 663 | | - * They get printed in the printFooter-function. |
| 664 | | - * |
| 665 | | - * @param $st The SMWSmallTitle wrapping the page to be exported |
| 666 | | - * @param $fullexport Boolean to define whether all the data for the page should |
| 667 | | - * be exported, or whether just a definition of the given title. |
| 668 | | - * @param $backlinks Boolean specifying if properties linking to the exported title |
| 669 | | - * should be included. |
| 670 | | - */ |
| 671 | | - protected function printObject( /*SMWSmallTitle*/ $st, $fullexport = true, $backlinks = false ) { |
| 672 | | - global $smwgMW_1_14; |
| 673 | | - if ( array_key_exists( $st->getHash(), $this->element_done ) ) return; // do not export twice |
| 674 | | - |
| 675 | | - $value = SMWWikiPageValue::makePage( $st->dbkey, $st->namespace ); |
| 676 | | - if ( $this->date !== '' ) { // check date restriction if given |
| 677 | | - $rev = $smwgMW_1_14 ? Revision::getTimeStampFromID( $value->getTitle(), $value->getTitle()->getLatestRevID() ):Revision::getTimeStampFromID( $value->getTitle()->getLatestRevID() ); |
| 678 | | - if ( $rev < $this->date ) return; |
| 679 | | - } |
| 680 | | - |
| 681 | | - $data = SMWExporter::makeExportData( smwfGetStore()->getSemanticData( $value, $fullexport ? false:array( '__spu', '__typ', '__imp' ) ), $st->modifier ); |
| 682 | | - $this->printExpData( $data ); // serialise |
| 683 | | - // let other extensions add additional RDF data for this page |
| 684 | | - $additionalDataArray = array(); |
| 685 | | - wfRunHooks( 'smwAddToRDFExport', array( $value->getTitle(), &$additionalDataArray ) ); |
| 686 | | - foreach ( $additionalDataArray as $additionalData ) { |
| 687 | | - $this->printExpData( $additionalData ); // serialise |
| 688 | | - } |
| 689 | | - $this->markAsDone( $st ); |
| 690 | | - |
| 691 | | - // possibly add backlinks |
| 692 | | - if ( ( $fullexport ) && ( $backlinks ) ) { |
| 693 | | - wfProfileIn( "RDF::PrintPages::GetBacklinks" ); |
| 694 | | - $inRels = smwfGetStore()->getInProperties( $value ); |
| 695 | | - foreach ( $inRels as $inRel ) { |
| 696 | | - $inSubs = smwfGetStore()->getPropertySubjects( $inRel, $value ); |
| 697 | | - foreach ( $inSubs as $inSub ) { |
| 698 | | - $stb = new SMWSmallTitle(); |
| 699 | | - $stb->dbkey = $inSub->getDBkey(); |
| 700 | | - $stb->namespace = $inSub->getNamespace(); |
| 701 | | - if ( !array_key_exists( $stb->getHash(), $this->element_done ) ) { |
| 702 | | - $semdata = smwfGetStore()->getSemanticData( $inSub, array( '__spu', '__typ', '__imp' ) ); |
| 703 | | - $semdata->addPropertyObjectValue( $inRel, $value ); |
| 704 | | - $data = SMWExporter::makeExportData( $semdata ); |
| 705 | | - $this->printExpData( $data ); |
| 706 | | - } |
| 707 | | - } |
| 708 | | - } |
| 709 | | - if ( NS_CATEGORY === $value->getNamespace() ) { // also print elements of categories |
| 710 | | - $options = new SMWRequestOptions(); |
| 711 | | - $options->limit = 100; /// Categories can be large, use limit |
| 712 | | - $instances = smwfGetStore()->getPropertySubjects( SMWPropertyValue::makeProperty( '_INST' ), $value, $options ); |
| 713 | | - $pinst = SMWPropertyValue::makeProperty( '_INST' ); |
| 714 | | - foreach ( $instances as $instance ) { |
| 715 | | - $stb = new SMWSmallTitle(); |
| 716 | | - $stb->dbkey = $instance->getDBkey(); |
| 717 | | - $stb->namespace = $instance->getNamespace(); |
| 718 | | - if ( !array_key_exists( $stb->getHash(), $this->element_done ) ) { |
| 719 | | - $semdata = smwfGetStore()->getSemanticData( $instance, array( '__spu', '__typ', '__imp' ) ); |
| 720 | | - $semdata->addPropertyObjectValue( $pinst, $value ); |
| 721 | | - $data = SMWExporter::makeExportData( $semdata ); |
| 722 | | - $this->printExpData( $data ); |
| 723 | | - } |
| 724 | | - } |
| 725 | | - } elseif ( SMW_NS_CONCEPT === $value->getNamespace() ) { // print concept members (slightly different code) |
| 726 | | - $desc = new SMWConceptDescription( $value->getTitle() ); |
| 727 | | - $desc->addPrintRequest( new SMWPrintRequest( SMWPrintRequest::PRINT_THIS, '' ) ); |
| 728 | | - $query = new SMWQuery( $desc ); |
| 729 | | - $query->setLimit( 100 ); |
| 730 | | - |
| 731 | | - $res = smwfGetStore()->getQueryResult( $query ); |
| 732 | | - $resarray = $res->getNext(); |
| 733 | | - $pinst = SMWPropertyValue::makeProperty( '_INST' ); |
| 734 | | - while ( $resarray !== false ) { |
| 735 | | - $instance = end( $resarray )->getNextObject(); |
| 736 | | - $stb = new SMWSmallTitle(); |
| 737 | | - $stb->dbkey = $instance->getDBkey(); |
| 738 | | - $stb->namespace = $instance->getNamespace(); |
| 739 | | - if ( !array_key_exists( $stb->getHash(), $this->element_done ) ) { |
| 740 | | - $semdata = smwfGetStore()->getSemanticData( $instance, array( '__spu', '__typ', '__imp' ) ); |
| 741 | | - $semdata->addPropertyObjectValue( $pinst, $value ); |
| 742 | | - $data = SMWExporter::makeExportData( $semdata ); |
| 743 | | - $this->printExpData( $data ); |
| 744 | | - } |
| 745 | | - $resarray = $res->getNext(); |
| 746 | | - } |
| 747 | | - } |
| 748 | | - wfProfileOut( "RDF::PrintPages::GetBacklinks" ); |
| 749 | | - } |
| 750 | | - } |
| 751 | | - |
| 752 | | - /** |
| 753 | | - * Flush all buffers and extra namespaces by printing them to stdout and flushing |
| 754 | | - * the output buffers afterwards. |
| 755 | | - * |
| 756 | | - * @param force if true, the flush cannot be delayed any longer |
| 757 | | - */ |
| 758 | | - protected function flushBuffers( $force = false ) { |
| 759 | | - if ( $this->post_ns_buffer == '' ) return; // nothing to flush (every non-empty pre_ns_buffer also requires a non-empty post_ns_buffer) |
| 760 | | - if ( ( 0 != $this->delay_flush ) && !$force ) return; // wait a little longer |
| 761 | | - |
| 762 | | - print $this->pre_ns_buffer; |
| 763 | | - $this->pre_ns_buffer = ''; |
| 764 | | - |
| 765 | | - foreach ( $this->extra_namespaces as $nsshort => $nsuri ) { |
| 766 | | - if ( $this->first_flush ) { |
| 767 | | - $this->global_namespaces[$nsshort] = true; |
| 768 | | - print "\n\t"; |
| 769 | | - } else print ' '; |
| 770 | | - |
| 771 | | - print "xmlns:$nsshort=\"$nsuri\""; |
| 772 | | - } |
| 773 | | - |
| 774 | | - $this->extra_namespaces = array(); |
| 775 | | - print $this->post_ns_buffer; |
| 776 | | - $this->post_ns_buffer = ''; |
| 777 | | - // Ship data in small chunks (even though browsers often do not display anything |
| 778 | | - // before the file is complete -- this might be due to syntax highlighting features |
| 779 | | - // for app/xml). You may want to sleep(1) here for debugging this. |
| 780 | | - ob_flush(); |
| 781 | | - flush(); |
| 782 | | - $this->first_flush = false; |
| 783 | | - } |
| 784 | | - |
| 785 | | - /** |
| 786 | | - * Add an extra namespace that was encountered during output. The method |
| 787 | | - * checks whether the required namespace is available globally and adds |
| 788 | | - * it to the list of extra_namesapce otherwise. |
| 789 | | - */ |
| 790 | | - public function addExtraNamespace( $nsshort, $nsuri ) { |
| 791 | | - if ( !array_key_exists( $nsshort, $this->global_namespaces ) ) { |
| 792 | | - $this->extra_namespaces[$nsshort] = $nsuri; |
| 793 | | - } |
| 794 | | - } |
| 795 | | - |
| 796 | | - /** |
| 797 | | - * Add a given SMWExpResource to the export queue if needed. |
| 798 | | - */ |
| 799 | | - public function queueElement( $element ) { |
| 800 | | - if ( !( $element instanceof SMWExpResource ) ) return; // only Resources are queued |
| 801 | | - $title = $element->getDataValue(); |
| 802 | | - if ( $title instanceof SMWWikiPageValue ) { |
| 803 | | - $spt = new SMWSmallTitle(); |
| 804 | | - $title = $title->getTitle(); |
| 805 | | - $spt->dbkey = $title->getDBkey(); |
| 806 | | - $spt->namespace = $title->getNamespace(); |
| 807 | | - $spt->modifier = $element->getModifier(); |
| 808 | | - if ( !array_key_exists( $spt->getHash(), $this->element_done ) ) { |
| 809 | | - $this->element_queue[$spt->getHash()] = $spt; |
| 810 | | - } |
| 811 | | - } |
| 812 | | - } |
| 813 | | - |
| 814 | | - /** |
| 815 | | - * Mark an article as done while making sure that the cache used for this |
| 816 | | - * stays reasonably small. Input is given as an SMWExportArticle object. |
| 817 | | - */ |
| 818 | | - protected function markAsDone( $st ) { |
| 819 | | - if ( count( $this->element_done ) >= OWLExport::MAX_CACHE_SIZE ) { |
| 820 | | - $this->element_done = array_slice( $this->element_done, |
| 821 | | - OWLExport::CACHE_BACKJUMP, |
| 822 | | - OWLExport::MAX_CACHE_SIZE - OWLExport::CACHE_BACKJUMP, |
| 823 | | - true ); |
| 824 | | - } |
| 825 | | - $this->element_done[$st->getHash()] = $st; // mark title as done |
| 826 | | - unset( $this->element_queue[$st->getHash()] ); // make sure it is not in the queue |
| 827 | | - } |
| 828 | | - |
| 829 | | - /** |
| 830 | | - * This function checks whether some article fits into a given namespace restriction. |
| 831 | | - * FALSE means "no restriction," non-negative restictions require to check whether |
| 832 | | - * the given number equals the given namespace. A restriction of -1 requires the |
| 833 | | - * namespace to be different from Category:, Relation:, Attribute:, and Type:. |
| 834 | | - */ |
| 835 | | - static public function fitsNsRestriction( $res, $ns ) { |
| 836 | | - if ( $res === false ) return true; |
| 837 | | - if ( is_array( $res ) ) return in_array( $ns, $res ); |
| 838 | | - if ( $res >= 0 ) return ( $res == $ns ); |
| 839 | | - return ( ( $res != NS_CATEGORY ) && ( $res != SMW_NS_PROPERTY ) && ( $res != SMW_NS_TYPE ) ); |
| 840 | | - } |
| 841 | | - |
| 842 | | -} |
| | 162 | +} |
| \ No newline at end of file |
| Index: trunk/extensions/SemanticMediaWiki/includes/export/SMW_OWLExport.php |
| — | — | @@ -0,0 +1,813 @@ |
| | 2 | +<?php |
| | 3 | + |
| | 4 | +/** |
| | 5 | + * File holding the OWLExport class for OWL export, used by SMWSpecialOWLExport (Special:ExportRDF page). |
| | 6 | + * |
| | 7 | + * @file SMW_OWLExport.php |
| | 8 | + * @ingroup SMW |
| | 9 | + * |
| | 10 | + * @author Markus Krötzsch |
| | 11 | + */ |
| | 12 | + |
| | 13 | +/** |
| | 14 | + * Small data object holding the bare essentials of one title. |
| | 15 | + * Used to store processed and open pages for export. |
| | 16 | + * |
| | 17 | + * @ingroup SMW |
| | 18 | + */ |
| | 19 | +class SMWSmallTitle { |
| | 20 | + public $dbkey; |
| | 21 | + public $namespace; // MW namespace constant |
| | 22 | + public $modifier = ''; // e.g. a unit string |
| | 23 | + |
| | 24 | + public function getHash() { |
| | 25 | + return $this->dbkey . ' ' . $this->namespace . ' ' . $this->modifier; |
| | 26 | + } |
| | 27 | +} |
| | 28 | + |
| | 29 | + |
| | 30 | +/** |
| | 31 | + * Class for encapsulating the methods for RDF export. |
| | 32 | + * |
| | 33 | + * @ingroup SMW |
| | 34 | + */ |
| | 35 | +class SMWOWLExport { |
| | 36 | + /**#@+ |
| | 37 | + * @access private |
| | 38 | + */ |
| | 39 | + |
| | 40 | + const MAX_CACHE_SIZE = 5000; // do not let cache arrays get larger than this |
| | 41 | + const CACHE_BACKJUMP = 500; // kill this many cached entries if limit is reached, |
| | 42 | + // avoids too much array copying; <= MAX_CACHE_SIZE! |
| | 43 | + |
| | 44 | + /** |
| | 45 | + * An array that keeps track of the elements for which we still need to |
| | 46 | + * write auxilliary definitions. |
| | 47 | + */ |
| | 48 | + private $element_queue; |
| | 49 | + |
| | 50 | + /** |
| | 51 | + * An array that keeps track of the elements which have been exported already |
| | 52 | + */ |
| | 53 | + private $element_done; |
| | 54 | + |
| | 55 | + /** |
| | 56 | + * Date used to filter the export. If a page has not been changed since that |
| | 57 | + * date it will not be exported |
| | 58 | + */ |
| | 59 | + private $date; |
| | 60 | + |
| | 61 | + /** |
| | 62 | + * Array of additional namespaces (abbreviation => URI), flushed on |
| | 63 | + * closing the current namespace tag. Since we export RDF in a streamed |
| | 64 | + * way, it is not always possible to embed additional namespaces into |
| | 65 | + * the RDF-tag which might have been sent to the client already. But we |
| | 66 | + * wait with printing the current Description so that extra namespaces |
| | 67 | + * from this array can still be printed (note that you never know which |
| | 68 | + * extra namespaces you encounter during export). |
| | 69 | + */ |
| | 70 | + private $extra_namespaces; |
| | 71 | + |
| | 72 | + /** |
| | 73 | + * Array of namespaces that have been declared globally already. Contains |
| | 74 | + * entries of format 'namespace abbreviation' => true, assuming that the |
| | 75 | + * same abbreviation always refers to the same URI (i.e. you cannot import |
| | 76 | + * something as rdf:bla if you do not want rdf to be the standard |
| | 77 | + * namespace that is already given in every RDF export). |
| | 78 | + */ |
| | 79 | + private $global_namespaces; |
| | 80 | + |
| | 81 | + /** |
| | 82 | + * Unprinted XML is composed from the strings $pre_ns_buffer and $post_ns_buffer. |
| | 83 | + * The split between the two is such that one can append additional namespace |
| | 84 | + * declarations to $pre_ns_buffer so that they affect all current elements. The |
| | 85 | + * buffers are flushed during output in order to achieve "streaming" RDF export |
| | 86 | + * for larger files. |
| | 87 | + */ |
| | 88 | + private $pre_ns_buffer; |
| | 89 | + |
| | 90 | + /** |
| | 91 | + * See documentation for SMWOWLExport::pre_ns_buffer. |
| | 92 | + */ |
| | 93 | + private $post_ns_buffer; |
| | 94 | + |
| | 95 | + /** |
| | 96 | + * Boolean that is true as long as nothing was flushed yet. Indicates that |
| | 97 | + * extra namespaces can still become global. |
| | 98 | + */ |
| | 99 | + private $first_flush; |
| | 100 | + |
| | 101 | + /** |
| | 102 | + * Integer that counts down the number of objects we still process before |
| | 103 | + * doing the first flush. Aggregating some output before flushing is useful |
| | 104 | + * to get more namespaces global. Flushing will only happen if $delay_flush |
| | 105 | + * is 0. |
| | 106 | + */ |
| | 107 | + private $delay_flush; |
| | 108 | + |
| | 109 | + /** |
| | 110 | + * Constructor. |
| | 111 | + */ |
| | 112 | + public function __construct() { |
| | 113 | + $this->element_queue = array(); |
| | 114 | + $this->element_done = array(); |
| | 115 | + $this->date = ''; |
| | 116 | + } |
| | 117 | + |
| | 118 | + /** |
| | 119 | + * Sets a date as a filter. Any page that has not been changed since that date |
| | 120 | + * will not be exported. The date has to be a string in XML Schema format. |
| | 121 | + */ |
| | 122 | + public function setDate( $date ) { |
| | 123 | + $timeint = strtotime( $date ); |
| | 124 | + $stamp = date( "YmdHis", $timeint ); |
| | 125 | + $this->date = $stamp; |
| | 126 | + } |
| | 127 | + |
| | 128 | + /** |
| | 129 | + * This function prints all selected pages. The parameter $recursion determines |
| | 130 | + * how referenced ressources are treated: |
| | 131 | + * '0' : add brief declarations for each |
| | 132 | + * '1' : add full descriptions for each, thus beginning real recursion (and |
| | 133 | + * probably retrieving the whole wiki ...) |
| | 134 | + * else: ignore them, though -1 might become a synonym for "export *all*" in the future |
| | 135 | + * The parameter $backlinks determines whether or not subjects of incoming |
| | 136 | + * properties are exported as well. Enables "browsable RDF." |
| | 137 | + */ |
| | 138 | + public function printPages( $pages, $recursion = 1, $backlinks = true ) { |
| | 139 | + wfProfileIn( "RDF::PrintPages" ); |
| | 140 | + |
| | 141 | + $linkCache =& LinkCache::singleton(); |
| | 142 | + $this->pre_ns_buffer = ''; |
| | 143 | + $this->post_ns_buffer = ''; |
| | 144 | + $this->first_flush = true; |
| | 145 | + $this->delay_flush = 10; // flush only after (fully) printing 11 objects |
| | 146 | + $this->extra_namespaces = array(); |
| | 147 | + |
| | 148 | + if ( count( $pages ) == 1 ) { // ensure that ontologies that are retrieved as linked data are not confused with their subject! |
| | 149 | + $ontologyuri = SMWExporter::expandURI( '&export;' ) . '/' . urlencode( end( $pages ) ); |
| | 150 | + } else { // use empty URI, i.e. "location" as URI otherwise |
| | 151 | + $ontologyuri = ''; |
| | 152 | + } |
| | 153 | + |
| | 154 | + $this->printHeader( $ontologyuri ); // also inits global namespaces |
| | 155 | + |
| | 156 | + wfProfileIn( "RDF::PrintPages::PrepareQueue" ); |
| | 157 | + |
| | 158 | + // transform pages into queued export titles |
| | 159 | + $cur_queue = array(); |
| | 160 | + |
| | 161 | + foreach ( $pages as $page ) { |
| | 162 | + $title = Title::newFromText( $page ); |
| | 163 | + |
| | 164 | + if ( null === $title ) continue; // invalid title name given |
| | 165 | + |
| | 166 | + $st = new SMWSmallTitle(); |
| | 167 | + $st->dbkey = $title->getDBkey(); |
| | 168 | + $st->namespace = $title->getNamespace(); |
| | 169 | + |
| | 170 | + $cur_queue[] = $st; |
| | 171 | + } |
| | 172 | + |
| | 173 | + wfProfileOut( "RDF::PrintPages::PrepareQueue" ); |
| | 174 | + |
| | 175 | + while ( count( $cur_queue ) > 0 ) { |
| | 176 | + // first, print all selected pages |
| | 177 | + foreach ( $cur_queue as $st ) { |
| | 178 | + wfProfileIn( "RDF::PrintPages::PrintOne" ); |
| | 179 | + |
| | 180 | + $this->printObject( $st, true, $backlinks ); |
| | 181 | + |
| | 182 | + wfProfileOut( "RDF::PrintPages::PrintOne" ); |
| | 183 | + |
| | 184 | + if ( $this->delay_flush > 0 ) $this->delay_flush--; |
| | 185 | + } |
| | 186 | + |
| | 187 | + // prepare array for next iteration |
| | 188 | + $cur_queue = array(); |
| | 189 | + |
| | 190 | + if ( 1 == $recursion ) { |
| | 191 | + $cur_queue = $this->element_queue + $cur_queue; // make sure the array is *dublicated* instead of copying its ref |
| | 192 | + $this->element_queue = array(); |
| | 193 | + } |
| | 194 | + |
| | 195 | + $linkCache->clear(); |
| | 196 | + } |
| | 197 | + |
| | 198 | + // for pages not processed recursively, print at least basic declarations |
| | 199 | + wfProfileIn( "RDF::PrintPages::Auxiliary" ); |
| | 200 | + $this->date = ''; // no date restriction for the rest! |
| | 201 | + |
| | 202 | + if ( !empty( $this->element_queue ) ) { |
| | 203 | + if ( $this->pre_ns_buffer != '' ) { |
| | 204 | + $this->post_ns_buffer .= "\t<!-- auxiliary definitions -->\n"; |
| | 205 | + } else { |
| | 206 | + print "\t<!-- auxiliary definitions -->\n"; // just print this comment, so that later outputs still find the empty pre_ns_buffer! |
| | 207 | + } |
| | 208 | + |
| | 209 | + while ( !empty( $this->element_queue ) ) { |
| | 210 | + $st = array_pop( $this->element_queue ); |
| | 211 | + $this->printObject( $st, false, false ); |
| | 212 | + } |
| | 213 | + } |
| | 214 | + |
| | 215 | + wfProfileOut( "RDF::PrintPages::Auxiliary" ); |
| | 216 | + |
| | 217 | + $this->printFooter(); |
| | 218 | + $this->flushBuffers( true ); |
| | 219 | + |
| | 220 | + wfProfileOut( "RDF::PrintPages" ); |
| | 221 | + } |
| | 222 | + |
| | 223 | + /** |
| | 224 | + * This function prints RDF for *all* pages within the wiki, and for all |
| | 225 | + * elements that are referred to in the exported RDF. |
| | 226 | + */ |
| | 227 | + public function printAll( $outfile, $ns_restriction = false, $delay, $delayeach ) { |
| | 228 | + global $smwgNamespacesWithSemanticLinks; |
| | 229 | + |
| | 230 | + $linkCache =& LinkCache::singleton(); |
| | 231 | + |
| | 232 | + $db = & wfGetDB( DB_MASTER ); |
| | 233 | + $this->pre_ns_buffer = ''; |
| | 234 | + $this->post_ns_buffer = ''; |
| | 235 | + $this->first_flush = true; |
| | 236 | + |
| | 237 | + if ( $outfile === false ) { |
| | 238 | + // $this->delay_flush = 10000; //flush only after (fully) printing 10001 objects, |
| | 239 | + $this->delay_flush = - 1; // do not flush buffer at all |
| | 240 | + } else { |
| | 241 | + $file = fopen( $outfile, 'w' ); |
| | 242 | + |
| | 243 | + if ( !$file ) { |
| | 244 | + print "\nCannot open \"$outfile\" for writing.\n"; |
| | 245 | + return false; |
| | 246 | + } |
| | 247 | + |
| | 248 | + $this->delay_flush = - 1; // never flush, we flush in another way |
| | 249 | + } |
| | 250 | + |
| | 251 | + $this->extra_namespaces = array(); |
| | 252 | + $this->printHeader(); // also inits global namespaces |
| | 253 | + |
| | 254 | + $start = 1; |
| | 255 | + $end = $db->selectField( 'page', 'max(page_id)', false, $outfile ); |
| | 256 | + |
| | 257 | + $a_count = 0; $d_count = 0; // DEBUG |
| | 258 | + |
| | 259 | + $delaycount = $delayeach; |
| | 260 | + |
| | 261 | + for ( $id = $start; $id <= $end; $id++ ) { |
| | 262 | + $title = Title::newFromID( $id ); |
| | 263 | + |
| | 264 | + if ( ( $title === null ) || !smwfIsSemanticsProcessed( $title->getNamespace() ) ) continue; |
| | 265 | + if ( !OWLExport::fitsNsRestriction( $ns_restriction, $title->getNamespace() ) ) continue; |
| | 266 | + |
| | 267 | + $st = new SMWSmallTitle(); |
| | 268 | + $st->dbkey = $title->getDBkey(); |
| | 269 | + $st->namespace = $title->getNamespace(); |
| | 270 | + |
| | 271 | + $cur_queue = array( $st ); |
| | 272 | + $a_count++; // DEBUG |
| | 273 | + $full_export = true; |
| | 274 | + |
| | 275 | + while ( count( $cur_queue ) > 0 ) { |
| | 276 | + foreach ( $cur_queue as $st ) { |
| | 277 | + wfProfileIn( "RDF::PrintAll::PrintOne" ); |
| | 278 | + $this->printObject( $st, $full_export, false ); |
| | 279 | + wfProfileOut( "RDF::PrintAll::PrintOne" ); |
| | 280 | + } |
| | 281 | + |
| | 282 | + $full_export = false; // make sure added dependencies do not pull more than needed |
| | 283 | + // resolve dependencies that will otherwise not be printed |
| | 284 | + $cur_queue = array(); |
| | 285 | + |
| | 286 | + foreach ( $this->element_queue as $key => $staux ) { |
| | 287 | + $taux = Title::makeTitle( $staux->namespace, $staux->dbkey ); |
| | 288 | + |
| | 289 | + if ( !smwfIsSemanticsProcessed( $staux->namespace ) || ( $staux->modifier !== '' ) || |
| | 290 | + !OWLExport::fitsNsRestriction( $ns_restriction, $staux->namespace ) || |
| | 291 | + ( !$taux->exists() ) ) { |
| | 292 | + // Note: we do not need to check the cache to guess if an element was already |
| | 293 | + // printed. If so, it would not be included in the queue in the first place. |
| | 294 | + $cur_queue[] = $staux; |
| | 295 | + // $this->post_ns_buffer .= "<!-- Adding dependency '" . $staux->getHash() . "' -->"; //DEBUG |
| | 296 | + $d_count++; // DEBUG |
| | 297 | + } else { |
| | 298 | + unset( $this->element_queue[$key] ); // carrying around the values we do not |
| | 299 | + // want to export now is a potential memory leak |
| | 300 | + } |
| | 301 | + } |
| | 302 | + |
| | 303 | + // sleep each $delaycount for $delay ms to be nice to the server |
| | 304 | + if ( ( $delaycount-- < 0 ) && ( $delayeach != 0 ) ) { |
| | 305 | + usleep( $delay ); |
| | 306 | + $delaycount = $delayeach; |
| | 307 | + } |
| | 308 | + } |
| | 309 | + |
| | 310 | + if ( $outfile !== false ) { // flush buffer |
| | 311 | + fwrite( $file, $this->post_ns_buffer ); |
| | 312 | + $this->post_ns_buffer = ''; |
| | 313 | + } |
| | 314 | + |
| | 315 | + $linkCache->clear(); |
| | 316 | + } |
| | 317 | + |
| | 318 | + // DEBUG: |
| | 319 | + $this->post_ns_buffer .= "<!-- Processed $a_count regular articles. -->\n"; |
| | 320 | + $this->post_ns_buffer .= "<!-- Processed $d_count added dependencies. -->\n"; |
| | 321 | + $this->post_ns_buffer .= "<!-- Final cache size was " . sizeof( $this->element_done ) . ". -->\n"; |
| | 322 | + |
| | 323 | + $this->printFooter(); |
| | 324 | + |
| | 325 | + if ( $outfile === false ) { |
| | 326 | + $this->flushBuffers( true ); |
| | 327 | + } else { // prepend headers to file, there is no really efficient solution (`cat(1)`) for this it seems |
| | 328 | + // print head: |
| | 329 | + fclose( $file ); |
| | 330 | + |
| | 331 | + foreach ( $this->extra_namespaces as $nsshort => $nsuri ) { |
| | 332 | + $this->pre_ns_buffer .= "\n\txmlns:$nsshort=\"$nsuri\""; |
| | 333 | + } |
| | 334 | + |
| | 335 | + $full_export = file_get_contents( $outfile ); |
| | 336 | + $full_export = $this->pre_ns_buffer . $full_export . $this->post_ns_buffer; |
| | 337 | + |
| | 338 | + $file = fopen( $outfile, 'w' ); |
| | 339 | + fwrite( $file, $full_export ); |
| | 340 | + fclose( $file ); |
| | 341 | + } |
| | 342 | + } |
| | 343 | + |
| | 344 | + /** |
| | 345 | + * Print basic definitions a list of pages ordered by their page id. |
| | 346 | + * Offset and limit refer to the count of existing pages, not to the |
| | 347 | + * page id. |
| | 348 | + */ |
| | 349 | + public function printPageList( $offset = 0, $limit = 30 ) { |
| | 350 | + wfProfileIn( "RDF::PrintPageList" ); |
| | 351 | + |
| | 352 | + $db = & wfGetDB( DB_MASTER ); |
| | 353 | + $this->pre_ns_buffer = ''; |
| | 354 | + $this->post_ns_buffer = ''; |
| | 355 | + $this->first_flush = true; |
| | 356 | + $this->delay_flush = 10; // flush only after (fully) printing 11 objects |
| | 357 | + $this->extra_namespaces = array(); |
| | 358 | + $this->printHeader(); // also inits global namespaces |
| | 359 | + $linkCache =& LinkCache::singleton(); |
| | 360 | + |
| | 361 | + global $smwgNamespacesWithSemanticLinks; |
| | 362 | + $query = ''; |
| | 363 | + |
| | 364 | + foreach ( $smwgNamespacesWithSemanticLinks as $ns => $enabled ) { |
| | 365 | + if ( $enabled ) { |
| | 366 | + if ( $query != '' ) $query .= ' OR '; |
| | 367 | + $query .= 'page_namespace = ' . $db->addQuotes( $ns ); |
| | 368 | + } |
| | 369 | + } |
| | 370 | + |
| | 371 | + $res = $db->select( $db->tableName( 'page' ), |
| | 372 | + 'page_id,page_title,page_namespace', $query |
| | 373 | + , 'SMW::RDF::PrintPageList', array( 'ORDER BY' => 'page_id ASC', 'OFFSET' => $offset, 'LIMIT' => $limit ) ); |
| | 374 | + $foundpages = false; |
| | 375 | + |
| | 376 | + while ( $row = $db->fetchObject( $res ) ) { |
| | 377 | + $foundpages = true; |
| | 378 | + // $t = Title::makeTitle($row->page_namespace, $row->page_title); |
| | 379 | + // if ($t === null) continue; |
| | 380 | + // $et = new SMWExportTitle($t, $this); |
| | 381 | + $st = new SMWSmallTitle(); |
| | 382 | + |
| | 383 | + $st->dbkey = $row->page_title; |
| | 384 | + $st->namespace = $row->page_namespace; |
| | 385 | + |
| | 386 | + $this->printObject( $st, false, false ); |
| | 387 | + |
| | 388 | + if ( $this->delay_flush > 0 ) $this->delay_flush--; |
| | 389 | + |
| | 390 | + $linkCache->clear(); |
| | 391 | + } |
| | 392 | + if ( $foundpages ) { // add link to next result page |
| | 393 | + if ( strpos( SMWExporter::expandURI( '&wikiurl;' ), '?' ) === false ) { // check whether we have title as a first parameter or in URL |
| | 394 | + $nexturl = SMWExporter::expandURI( '&export;?offset=' ) . ( $offset + $limit ); |
| | 395 | + } else { |
| | 396 | + $nexturl = SMWExporter::expandURI( '&export;&offset=' ) . ( $offset + $limit ); |
| | 397 | + } |
| | 398 | + |
| | 399 | + $this->post_ns_buffer .= |
| | 400 | + "\t<!-- Link to next set of results -->\n" . |
| | 401 | + "\t<owl:Thing rdf:about=\"$nexturl\">\n" . |
| | 402 | + "\t\t<rdfs:isDefinedBy rdf:resource=\"$nexturl\"/>\n" . |
| | 403 | + "\t</owl:Thing>\n"; |
| | 404 | + } |
| | 405 | + |
| | 406 | + $this->printFooter(); |
| | 407 | + $this->flushBuffers( true ); |
| | 408 | + |
| | 409 | + wfProfileOut( "RDF::PrintPageList" ); |
| | 410 | + } |
| | 411 | + |
| | 412 | + |
| | 413 | + /** |
| | 414 | + * Print basic information about this site. |
| | 415 | + */ |
| | 416 | + public function printWikiInfo() { |
| | 417 | + wfProfileIn( "RDF::PrintWikiInfo" ); |
| | 418 | + |
| | 419 | + global $wgSitename, $wgLanguageCode; |
| | 420 | + |
| | 421 | + $db = & wfGetDB( DB_MASTER ); |
| | 422 | + $this->pre_ns_buffer = ''; |
| | 423 | + $this->post_ns_buffer = ''; |
| | 424 | + $this->extra_namespaces = array(); |
| | 425 | + $data = new SMWExpData( new SMWExpResource( '&wiki;#wiki' ) ); |
| | 426 | + |
| | 427 | + $ed = new SMWExpData( SMWExporter::getSpecialElement( 'swivt', 'Wikisite' ) ); |
| | 428 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'rdf', 'type' ), $ed ); |
| | 429 | + |
| | 430 | + $ed = new SMWExpData( new SMWExpLiteral( $wgSitename ) ); |
| | 431 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'rdfs', 'label' ), $ed ); |
| | 432 | + |
| | 433 | + $ed = new SMWExpData( new SMWExpLiteral( $wgSitename, null, 'http://www.w3.org/2001/XMLSchema#string' ) ); |
| | 434 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'siteName' ), $ed ); |
| | 435 | + |
| | 436 | + $ed = new SMWExpData( new SMWExpLiteral( SMWExporter::expandURI( '&wikiurl;' ), null, 'http://www.w3.org/2001/XMLSchema#string' ) ); |
| | 437 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'pagePrefix' ), $ed ); |
| | 438 | + |
| | 439 | + $ed = new SMWExpData( new SMWExpLiteral( SMW_VERSION, null, 'http://www.w3.org/2001/XMLSchema#string' ) ); |
| | 440 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'smwVersion' ), $ed ); |
| | 441 | + |
| | 442 | + $ed = new SMWExpData( new SMWExpLiteral( $wgLanguageCode, null, 'http://www.w3.org/2001/XMLSchema#string' ) ); |
| | 443 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'langCode' ), $ed ); |
| | 444 | + |
| | 445 | + // stats |
| | 446 | + $ed = new SMWExpData( new SMWExpLiteral( SiteStats::pages(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| | 447 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'pageCount' ), $ed ); |
| | 448 | + |
| | 449 | + $ed = new SMWExpData( new SMWExpLiteral( SiteStats::articles(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| | 450 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'contentPageCount' ), $ed ); |
| | 451 | + |
| | 452 | + $ed = new SMWExpData( new SMWExpLiteral( SiteStats::images(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| | 453 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'mediaCount' ), $ed ); |
| | 454 | + |
| | 455 | + $ed = new SMWExpData( new SMWExpLiteral( SiteStats::edits(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| | 456 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'editCount' ), $ed ); |
| | 457 | + |
| | 458 | + $ed = new SMWExpData( new SMWExpLiteral( SiteStats::views(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| | 459 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'viewCount' ), $ed ); |
| | 460 | + |
| | 461 | + $ed = new SMWExpData( new SMWExpLiteral( SiteStats::users(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| | 462 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'userCount' ), $ed ); |
| | 463 | + |
| | 464 | + $ed = new SMWExpData( new SMWExpLiteral( SiteStats::admins(), null, 'http://www.w3.org/2001/XMLSchema#int' ) ); |
| | 465 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'adminCount' ), $ed ); |
| | 466 | + |
| | 467 | + $mainpage = Title::newMainPage(); |
| | 468 | + |
| | 469 | + if ( $mainpage !== null ) { |
| | 470 | + $ed = new SMWExpData( new SMWExpResource( $mainpage->getFullURL() ) ); |
| | 471 | + $data->addPropertyObjectValue( SMWExporter::getSpecialElement( 'swivt', 'mainPage' ), $ed ); |
| | 472 | + } |
| | 473 | + |
| | 474 | + $this->printHeader(); // also inits global namespaces |
| | 475 | + $this->printExpData( $data ); |
| | 476 | + |
| | 477 | + if ( strpos( SMWExporter::expandURI( '&wikiurl;' ), '?' ) === false ) { // check whether we have title as a first parameter or in URL |
| | 478 | + $nexturl = SMWExporter::expandURI( '&export;?offset=0' ); |
| | 479 | + } else { |
| | 480 | + $nexturl = SMWExporter::expandURI( '&export;&offset=0' ); |
| | 481 | + } |
| | 482 | + |
| | 483 | + $this->post_ns_buffer .= |
| | 484 | + "\t<!-- Link to semantic page list -->\n" . |
| | 485 | + "\t<owl:Thing rdf:about=\"$nexturl\">\n" . |
| | 486 | + "\t\t<rdfs:isDefinedBy rdf:resource=\"$nexturl\"/>\n" . |
| | 487 | + "\t</owl:Thing>\n"; |
| | 488 | + |
| | 489 | + $this->printFooter(); |
| | 490 | + $this->flushBuffers( true ); |
| | 491 | + |
| | 492 | + wfProfileOut( "RDF::PrintWikiInfo" ); |
| | 493 | + } |
| | 494 | + |
| | 495 | + /* Functions for exporting RDF */ |
| | 496 | + |
| | 497 | + protected function printHeader( $ontologyuri = '' ) { |
| | 498 | + global $wgContLang; |
| | 499 | + |
| | 500 | + $this->pre_ns_buffer .= |
| | 501 | + "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" . |
| | 502 | + "<!DOCTYPE rdf:RDF[\n" . |
| | 503 | + "\t<!ENTITY rdf '" . SMWExporter::expandURI( '&rdf;' ) . "'>\n" . |
| | 504 | + "\t<!ENTITY rdfs '" . SMWExporter::expandURI( '&rdfs;' ) . "'>\n" . |
| | 505 | + "\t<!ENTITY owl '" . SMWExporter::expandURI( '&owl;' ) . "'>\n" . |
| | 506 | + "\t<!ENTITY swivt '" . SMWExporter::expandURI( '&swivt;' ) . "'>\n" . |
| | 507 | + // A note on "wiki": this namespace is crucial as a fallback when it would be illegal to start e.g. with a number. In this case, one can always use wiki:... followed by "_" and possibly some namespace, since _ is legal as a first character. |
| | 508 | + "\t<!ENTITY wiki '" . SMWExporter::expandURI( '&wiki;' ) . "'>\n" . |
| | 509 | + "\t<!ENTITY property '" . SMWExporter::expandURI( '&property;' ) . "'>\n" . |
| | 510 | + "\t<!ENTITY wikiurl '" . SMWExporter::expandURI( '&wikiurl;' ) . "'>\n" . |
| | 511 | + "]>\n\n" . |
| | 512 | + "<rdf:RDF\n" . |
| | 513 | + "\txmlns:rdf=\"&rdf;\"\n" . |
| | 514 | + "\txmlns:rdfs=\"&rdfs;\"\n" . |
| | 515 | + "\txmlns:owl =\"&owl;\"\n" . |
| | 516 | + "\txmlns:swivt=\"&swivt;\"\n" . |
| | 517 | + "\txmlns:wiki=\"&wiki;\"\n" . |
| | 518 | + "\txmlns:property=\"&property;\""; |
| | 519 | + $this->global_namespaces = array( 'rdf' => true, 'rdfs' => true, 'owl' => true, 'swivt' => true, 'wiki' => true, 'property' => true ); |
| | 520 | + |
| | 521 | + $this->post_ns_buffer .= |
| | 522 | + ">\n\t<!-- Ontology header -->\n" . |
| | 523 | + "\t<owl:Ontology rdf:about=\"$ontologyuri\">\n" . |
| | 524 | + "\t\t<swivt:creationDate rdf:datatype=\"http://www.w3.org/2001/XMLSchema#dateTime\">" . date( DATE_W3C ) . "</swivt:creationDate>\n" . |
| | 525 | + "\t\t<owl:imports rdf:resource=\"http://semantic-mediawiki.org/swivt/1.0\" />\n" . |
| | 526 | + "\t</owl:Ontology>\n" . |
| | 527 | + "\t<!-- exported page data -->\n"; |
| | 528 | + } |
| | 529 | + |
| | 530 | + /** |
| | 531 | + * Prints the footer. |
| | 532 | + */ |
| | 533 | + protected function printFooter() { |
| | 534 | + $this->post_ns_buffer .= "\t<!-- Created by Semantic MediaWiki, http://semantic-mediawiki.org/ -->\n"; |
| | 535 | + $this->post_ns_buffer .= '</rdf:RDF>'; |
| | 536 | + } |
| | 537 | + |
| | 538 | + /** |
| | 539 | + * Serialise the given semantic data. |
| | 540 | + */ |
| | 541 | + protected function printExpData( /*SMWExpData*/ $data, $indent = '' ) { |
| | 542 | + $type = $data->extractMainType()->getQName(); |
| | 543 | + |
| | 544 | + if ( '' == $this->pre_ns_buffer ) { // start new ns block |
| | 545 | + $this->pre_ns_buffer .= "\t$indent<$type"; |
| | 546 | + } else { |
| | 547 | + $this->post_ns_buffer .= "\t$indent<$type"; |
| | 548 | + } |
| | 549 | + |
| | 550 | + if ( ( $data->getSubject() instanceof SMWExpLiteral ) || ( $data->getSubject() instanceof SMWExpResource ) ) { |
| | 551 | + $this->post_ns_buffer .= ' rdf:about="' . $data->getSubject()->getName() . '"'; |
| | 552 | + } // else: blank node |
| | 553 | + |
| | 554 | + if ( count( $data->getProperties() ) == 0 ) { |
| | 555 | + $this->post_ns_buffer .= " />\n"; |
| | 556 | + } else { |
| | 557 | + $this->post_ns_buffer .= ">\n"; |
| | 558 | + |
| | 559 | + foreach ( $data->getProperties() as $property ) { |
| | 560 | + $this->queueElement( $property ); |
| | 561 | + |
| | 562 | + foreach ( $data->getValues( $property ) as $value ) { |
| | 563 | + $this->post_ns_buffer .= "\t\t$indent<" . $property->getQName(); |
| | 564 | + $this->addExtraNamespace( $property->getNamespaceID(), $property->getNamespace() ); |
| | 565 | + $object = $value->getSubject(); |
| | 566 | + |
| | 567 | + if ( $object instanceof SMWExpLiteral ) { |
| | 568 | + if ( $object->getDatatype() != '' ) { |
| | 569 | + $this->post_ns_buffer .= ' rdf:datatype="' . $object->getDatatype() . '"'; |
| | 570 | + } |
| | 571 | + |
| | 572 | + $this->post_ns_buffer .= '>' . |
| | 573 | + str_replace( array( '&', '>', '<' ), array( '&', '>', '<' ), $object->getName() ) . |
| | 574 | + '</' . $property->getQName() . ">\n"; |
| | 575 | + } else { // bnode or resource, may have subdescriptions |
| | 576 | + $collection = $value->getCollection(); |
| | 577 | + |
| | 578 | + if ( $collection != false ) { |
| | 579 | + $this->post_ns_buffer .= " rdf:parseType=\"Collection\">\n"; |
| | 580 | + |
| | 581 | + foreach ( $collection as $subvalue ) { |
| | 582 | + $this->printExpData( $subvalue, $indent . "\t\t" ); |
| | 583 | + } |
| | 584 | + |
| | 585 | + $this->post_ns_buffer .= "\t\t$indent</" . $property->getQName() . ">\n"; |
| | 586 | + } elseif ( count( $value->getProperties() ) > 0 ) { |
| | 587 | + $this->post_ns_buffer .= ">\n"; |
| | 588 | + $this->printExpData( $value, $indent . "\t\t" ); |
| | 589 | + $this->post_ns_buffer .= "\t\t$indent</" . $property->getQName() . ">\n"; |
| | 590 | + } else { |
| | 591 | + if ( $object instanceof SMWExpResource ) { |
| | 592 | + $this->post_ns_buffer .= ' rdf:resource="' . $object->getName() . '"'; |
| | 593 | + $this->queueElement( $object ); // queue only non-explicated resources |
| | 594 | + } |
| | 595 | + |
| | 596 | + $this->post_ns_buffer .= "/>\n"; |
| | 597 | + } |
| | 598 | + } |
| | 599 | + } |
| | 600 | + } |
| | 601 | + |
| | 602 | + $this->post_ns_buffer .= "\t$indent</" . $type . ">\n"; |
| | 603 | + } |
| | 604 | + |
| | 605 | + $this->flushBuffers(); |
| | 606 | + } |
| | 607 | + |
| | 608 | + /** |
| | 609 | + * Print the triples associated to a specific page, and references those needed. |
| | 610 | + * They get printed in the printFooter-function. |
| | 611 | + * |
| | 612 | + * @param $st The SMWSmallTitle wrapping the page to be exported |
| | 613 | + * @param $fullexport Boolean to define whether all the data for the page should |
| | 614 | + * be exported, or whether just a definition of the given title. |
| | 615 | + * @param $backlinks Boolean specifying if properties linking to the exported title |
| | 616 | + * should be included. |
| | 617 | + */ |
| | 618 | + protected function printObject( /*SMWSmallTitle*/ $st, $fullexport = true, $backlinks = false ) { |
| | 619 | + global $smwgMW_1_14; |
| | 620 | + |
| | 621 | + if ( array_key_exists( $st->getHash(), $this->element_done ) ) return; // do not export twice |
| | 622 | + |
| | 623 | + $value = SMWWikiPageValue::makePage( $st->dbkey, $st->namespace ); |
| | 624 | + |
| | 625 | + if ( $this->date !== '' ) { // check date restriction if given |
| | 626 | + $rev = $smwgMW_1_14 ? Revision::getTimeStampFromID( $value->getTitle(), $value->getTitle()->getLatestRevID() ):Revision::getTimeStampFromID( $value->getTitle()->getLatestRevID() ); |
| | 627 | + if ( $rev < $this->date ) return; |
| | 628 | + } |
| | 629 | + |
| | 630 | + $data = SMWExporter::makeExportData( smwfGetStore()->getSemanticData( $value, $fullexport ? false:array( '__spu', '__typ', '__imp' ) ), $st->modifier ); |
| | 631 | + $this->printExpData( $data ); // serialise |
| | 632 | + |
| | 633 | + // let other extensions add additional RDF data for this page |
| | 634 | + $additionalDataArray = array(); |
| | 635 | + |
| | 636 | + wfRunHooks( 'smwAddToRDFExport', array( $value->getTitle(), &$additionalDataArray ) ); |
| | 637 | + |
| | 638 | + foreach ( $additionalDataArray as $additionalData ) { |
| | 639 | + $this->printExpData( $additionalData ); // serialise |
| | 640 | + } |
| | 641 | + |
| | 642 | + $this->markAsDone( $st ); |
| | 643 | + |
| | 644 | + // possibly add backlinks |
| | 645 | + if ( ( $fullexport ) && ( $backlinks ) ) { |
| | 646 | + wfProfileIn( "RDF::PrintPages::GetBacklinks" ); |
| | 647 | + $inRels = smwfGetStore()->getInProperties( $value ); |
| | 648 | + |
| | 649 | + foreach ( $inRels as $inRel ) { |
| | 650 | + $inSubs = smwfGetStore()->getPropertySubjects( $inRel, $value ); |
| | 651 | + |
| | 652 | + foreach ( $inSubs as $inSub ) { |
| | 653 | + $stb = new SMWSmallTitle(); |
| | 654 | + $stb->dbkey = $inSub->getDBkey(); |
| | 655 | + $stb->namespace = $inSub->getNamespace(); |
| | 656 | + |
| | 657 | + if ( !array_key_exists( $stb->getHash(), $this->element_done ) ) { |
| | 658 | + $semdata = smwfGetStore()->getSemanticData( $inSub, array( '__spu', '__typ', '__imp' ) ); |
| | 659 | + $semdata->addPropertyObjectValue( $inRel, $value ); |
| | 660 | + $data = SMWExporter::makeExportData( $semdata ); |
| | 661 | + $this->printExpData( $data ); |
| | 662 | + } |
| | 663 | + } |
| | 664 | + } |
| | 665 | + |
| | 666 | + if ( NS_CATEGORY === $value->getNamespace() ) { // also print elements of categories |
| | 667 | + $options = new SMWRequestOptions(); |
| | 668 | + |
| | 669 | + $options->limit = 100; /// Categories can be large, use limit |
| | 670 | + |
| | 671 | + $instances = smwfGetStore()->getPropertySubjects( SMWPropertyValue::makeProperty( '_INST' ), $value, $options ); |
| | 672 | + |
| | 673 | + $pinst = SMWPropertyValue::makeProperty( '_INST' ); |
| | 674 | + |
| | 675 | + foreach ( $instances as $instance ) { |
| | 676 | + $stb = new SMWSmallTitle(); |
| | 677 | + $stb->dbkey = $instance->getDBkey(); |
| | 678 | + $stb->namespace = $instance->getNamespace(); |
| | 679 | + |
| | 680 | + if ( !array_key_exists( $stb->getHash(), $this->element_done ) ) { |
| | 681 | + $semdata = smwfGetStore()->getSemanticData( $instance, array( '__spu', '__typ', '__imp' ) ); |
| | 682 | + $semdata->addPropertyObjectValue( $pinst, $value ); |
| | 683 | + $data = SMWExporter::makeExportData( $semdata ); |
| | 684 | + $this->printExpData( $data ); |
| | 685 | + } |
| | 686 | + } |
| | 687 | + } elseif ( SMW_NS_CONCEPT === $value->getNamespace() ) { // print concept members (slightly different code) |
| | 688 | + $desc = new SMWConceptDescription( $value->getTitle() ); |
| | 689 | + $desc->addPrintRequest( new SMWPrintRequest( SMWPrintRequest::PRINT_THIS, '' ) ); |
| | 690 | + $query = new SMWQuery( $desc ); |
| | 691 | + $query->setLimit( 100 ); |
| | 692 | + |
| | 693 | + $res = smwfGetStore()->getQueryResult( $query ); |
| | 694 | + $resarray = $res->getNext(); |
| | 695 | + $pinst = SMWPropertyValue::makeProperty( '_INST' ); |
| | 696 | + |
| | 697 | + while ( $resarray !== false ) { |
| | 698 | + $instance = end( $resarray )->getNextObject(); |
| | 699 | + |
| | 700 | + $stb = new SMWSmallTitle(); |
| | 701 | + |
| | 702 | + $stb->dbkey = $instance->getDBkey(); |
| | 703 | + $stb->namespace = $instance->getNamespace(); |
| | 704 | + |
| | 705 | + if ( !array_key_exists( $stb->getHash(), $this->element_done ) ) { |
| | 706 | + $semdata = smwfGetStore()->getSemanticData( $instance, array( '__spu', '__typ', '__imp' ) ); |
| | 707 | + $semdata->addPropertyObjectValue( $pinst, $value ); |
| | 708 | + $data = SMWExporter::makeExportData( $semdata ); |
| | 709 | + $this->printExpData( $data ); |
| | 710 | + } |
| | 711 | + |
| | 712 | + $resarray = $res->getNext(); |
| | 713 | + } |
| | 714 | + } |
| | 715 | + |
| | 716 | + wfProfileOut( "RDF::PrintPages::GetBacklinks" ); |
| | 717 | + } |
| | 718 | + } |
| | 719 | + |
| | 720 | + /** |
| | 721 | + * Flush all buffers and extra namespaces by printing them to stdout and flushing |
| | 722 | + * the output buffers afterwards. |
| | 723 | + * |
| | 724 | + * @param force if true, the flush cannot be delayed any longer |
| | 725 | + */ |
| | 726 | + protected function flushBuffers( $force = false ) { |
| | 727 | + if ( $this->post_ns_buffer == '' ) return; // nothing to flush (every non-empty pre_ns_buffer also requires a non-empty post_ns_buffer) |
| | 728 | + if ( ( 0 != $this->delay_flush ) && !$force ) return; // wait a little longer |
| | 729 | + |
| | 730 | + print $this->pre_ns_buffer; |
| | 731 | + $this->pre_ns_buffer = ''; |
| | 732 | + |
| | 733 | + foreach ( $this->extra_namespaces as $nsshort => $nsuri ) { |
| | 734 | + if ( $this->first_flush ) { |
| | 735 | + $this->global_namespaces[$nsshort] = true; |
| | 736 | + print "\n\t"; |
| | 737 | + } else print ' '; |
| | 738 | + |
| | 739 | + print "xmlns:$nsshort=\"$nsuri\""; |
| | 740 | + } |
| | 741 | + |
| | 742 | + $this->extra_namespaces = array(); |
| | 743 | + print $this->post_ns_buffer; |
| | 744 | + $this->post_ns_buffer = ''; |
| | 745 | + |
| | 746 | + // Ship data in small chunks (even though browsers often do not display anything |
| | 747 | + // before the file is complete -- this might be due to syntax highlighting features |
| | 748 | + // for app/xml). You may want to sleep(1) here for debugging this. |
| | 749 | + ob_flush(); |
| | 750 | + flush(); |
| | 751 | + |
| | 752 | + $this->first_flush = false; |
| | 753 | + } |
| | 754 | + |
| | 755 | + /** |
| | 756 | + * Add an extra namespace that was encountered during output. The method |
| | 757 | + * checks whether the required namespace is available globally and adds |
| | 758 | + * it to the list of extra_namesapce otherwise. |
| | 759 | + */ |
| | 760 | + public function addExtraNamespace( $nsshort, $nsuri ) { |
| | 761 | + if ( !array_key_exists( $nsshort, $this->global_namespaces ) ) { |
| | 762 | + $this->extra_namespaces[$nsshort] = $nsuri; |
| | 763 | + } |
| | 764 | + } |
| | 765 | + |
| | 766 | + /** |
| | 767 | + * Add a given SMWExpResource to the export queue if needed. |
| | 768 | + */ |
| | 769 | + public function queueElement( $element ) { |
| | 770 | + if ( !( $element instanceof SMWExpResource ) ) return; // only Resources are queued |
| | 771 | + $title = $element->getDataValue(); |
| | 772 | + |
| | 773 | + if ( $title instanceof SMWWikiPageValue ) { |
| | 774 | + $spt = new SMWSmallTitle(); |
| | 775 | + $title = $title->getTitle(); |
| | 776 | + $spt->dbkey = $title->getDBkey(); |
| | 777 | + $spt->namespace = $title->getNamespace(); |
| | 778 | + $spt->modifier = $element->getModifier(); |
| | 779 | + |
| | 780 | + if ( !array_key_exists( $spt->getHash(), $this->element_done ) ) { |
| | 781 | + $this->element_queue[$spt->getHash()] = $spt; |
| | 782 | + } |
| | 783 | + } |
| | 784 | + } |
| | 785 | + |
| | 786 | + /** |
| | 787 | + * Mark an article as done while making sure that the cache used for this |
| | 788 | + * stays reasonably small. Input is given as an SMWExportArticle object. |
| | 789 | + */ |
| | 790 | + protected function markAsDone( $st ) { |
| | 791 | + if ( count( $this->element_done ) >= self::MAX_CACHE_SIZE ) { |
| | 792 | + $this->element_done = array_slice( $this->element_done, |
| | 793 | + self::CACHE_BACKJUMP, |
| | 794 | + self::MAX_CACHE_SIZE - self::CACHE_BACKJUMP, |
| | 795 | + true ); |
| | 796 | + } |
| | 797 | + $this->element_done[$st->getHash()] = $st; // mark title as done |
| | 798 | + unset( $this->element_queue[$st->getHash()] ); // make sure it is not in the queue |
| | 799 | + } |
| | 800 | + |
| | 801 | + /** |
| | 802 | + * This function checks whether some article fits into a given namespace restriction. |
| | 803 | + * FALSE means "no restriction," non-negative restictions require to check whether |
| | 804 | + * the given number equals the given namespace. A restriction of -1 requires the |
| | 805 | + * namespace to be different from Category:, Relation:, Attribute:, and Type:. |
| | 806 | + */ |
| | 807 | + static public function fitsNsRestriction( $res, $ns ) { |
| | 808 | + if ( $res === false ) return true; |
| | 809 | + if ( is_array( $res ) ) return in_array( $ns, $res ); |
| | 810 | + if ( $res >= 0 ) return ( $res == $ns ); |
| | 811 | + return ( ( $res != NS_CATEGORY ) && ( $res != SMW_NS_PROPERTY ) && ( $res != SMW_NS_TYPE ) ); |
| | 812 | + } |
| | 813 | + |
| | 814 | +} |
| \ No newline at end of file |
| Property changes on: trunk/extensions/SemanticMediaWiki/includes/export/SMW_OWLExport.php |
| ___________________________________________________________________ |
| Name: svn:eol-style |
| 1 | 815 | + native |
| Index: trunk/extensions/SemanticMediaWiki/includes/SMW_Setup.php |
| — | — | @@ -148,6 +148,7 @@ |
| 149 | 149 | $wgSpecialPages['SemanticStatistics'] = array( 'SMWSpecialSemanticStatistics' ); |
| 150 | 150 | $wgSpecialPageGroups['SemanticStatistics'] = 'wiki'; // Similar to Special:Statistics |
| 151 | 151 | |
| | 152 | + $wgAutoloadClasses['SMWOWLExport'] = $smwgIP . 'includes/export/SMW_OWLExport.php'; |
| 152 | 153 | $wgAutoloadClasses['SMWSpecialOWLExport'] = $smwgIP . 'specials/Export/SMW_SpecialOWLExport.php'; |
| 153 | 154 | $wgSpecialPages['ExportRDF'] = array( 'SMWSpecialOWLExport' ); |
| 154 | 155 | $wgSpecialPageGroups['ExportRDF'] = 'smw_group'; |