/**
* Builds the SPARQL query
*/
private function _buildQueries()
{
$query = new Erfurt_Sparql_Query2();
$uri = new Erfurt_Sparql_Query2_IriRef($this->_uri);
$predVar = new Erfurt_Sparql_Query2_Var('predicate');
$objVar = new Erfurt_Sparql_Query2_Var('object');
$query->addTriple($uri, $predVar, $objVar);
$query->addFilter(new Erfurt_Sparql_Query2_UnaryExpressionNot(new Erfurt_Sparql_Query2_isBlank($objVar)));
if (!empty($this->_ignoredPredicates)) {
$or = new Erfurt_Sparql_Query2_ConditionalAndExpression();
$filter = new Erfurt_Sparql_Query2_Filter($or);
foreach ($this->_ignoredPredicates as $ignored) {
$or->addElement(new Erfurt_Sparql_Query2_UnaryExpressionNot(new Erfurt_Sparql_Query2_sameTerm($predVar, new Erfurt_Sparql_Query2_IriRef($ignored))));
}
$query->getWhere()->addElement($filter);
}
$query->setDistinct(true)->addProjectionVar($predVar)->addProjectionVar($objVar)->getOrder()->add($predVar);
$queries = array();
$closure = Erfurt_App::getInstance()->getStore()->getImportsClosure($this->_model->getModelUri(), true);
$queryGraphs = array_merge(array($this->_graph), $closure);
foreach ($queryGraphs as $currentGraph) {
$query->setFroms(array($currentGraph));
$queries[$currentGraph] = clone $query;
}
return $queries;
}
public function testGetSparql()
{
$q1 = new Erfurt_Sparql_Query2(Erfurt_Sparql_Query2::typeAsk);
$this->assertEquals("ASK \nWHERE { \n} \n", $q1->getSparql());
$q2 = new Erfurt_Sparql_Query2(Erfurt_Sparql_Query2::typeDescribe);
$this->assertEquals("DESCRIBE * \nWHERE { \n} \n", $q2->getSparql());
$q3 = new Erfurt_Sparql_Query2(Erfurt_Sparql_Query2::typeSelect);
$this->assertEquals("SELECT * \nWHERE { \n} \n", $q3->getSparql());
$q4 = new Erfurt_Sparql_Query2(Erfurt_Sparql_Query2::typeConstruct);
$constrPure = "CONSTRUCT \n{ \n} \nWHERE { \n} \n";
$this->assertEquals($constrPure, $q4->getSparql());
$q4->setBase(new Erfurt_Sparql_Query2_IriRef('http://base.com'));
$this->assertEquals("BASE <http://base.com> \nCONSTRUCT \n{ \n} \nWHERE { \n} \n", $q4->getSparql());
$q4->removeBase();
$this->assertEquals($constrPure, $q4->getSparql());
$q3->setDistinct();
$this->assertEquals("SELECT DISTINCT * \nWHERE { \n} \n", $q3->getSparql());
$q3->setReduced();
$this->assertEquals("SELECT REDUCED * \nWHERE { \n} \n", $q3->getSparql());
}
protected function _buildSubCheckQuery($uri, $setup)
{
$subVar = new Erfurt_Sparql_Query2_Var('subResourceUri');
$searchVar = new Erfurt_Sparql_Query2_Var('resourceUri');
//$classVar = new Erfurt_Sparql_Query2_Var('classUri');
$query = new Erfurt_Sparql_Query2();
$query->addProjectionVar($subVar);
$query->setDistinct();
$this->_owApp->logger->info("data: " . print_r($query, true));
$elements = array();
$in = array();
$out = array();
if (isset($setup->config->hierarchyRelations->in)) {
if (count($setup->config->hierarchyRelations->in) > 1) {
// init union var
$unionSub = new Erfurt_Sparql_Query2_GroupOrUnionGraphPattern();
// parse config gile
foreach ($setup->config->hierarchyRelations->in as $rel) {
// sub stuff
$groupPattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
// add triplen
$groupPattern->addTriple($subVar, new Erfurt_Sparql_Query2_IriRef($rel), $searchVar);
// add triplet to union var
$unionSub->addElement($groupPattern);
}
$in[] = $unionSub;
} else {
$rel = $setup->config->hierarchyRelations->in;
// add optional sub relation
// create optional graph to load sublacsses of selected class
$queryOptional = new Erfurt_Sparql_Query2_GroupGraphPattern();
$queryOptional->addTriple($subVar, new Erfurt_Sparql_Query2_IriRef($rel[0]), $searchVar);
$in[] = $queryOptional;
}
}
if (isset($setup->config->hierarchyRelations->out)) {
if (count($setup->config->hierarchyRelations->out) > 1) {
// init union var
$unionSub = new Erfurt_Sparql_Query2_GroupGraphPattern();
// parse config gile
foreach ($setup->config->hierarchyRelations->out as $rel) {
// sub stuff
$optPattern = new Erfurt_Sparql_Query2_OptionalGraphPattern();
// add triple
$optPattern->addTriple($searchVar, new Erfurt_Sparql_Query2_IriRef($rel), $subVar);
// add triplet to union var
$unionSub->addElement($optPattern);
}
$out[] = $unionSub;
} else {
$rel = $setup->config->hierarchyRelations->out;
// add optional sub relation
// create optional graph to load sublacsses of selected class
$queryOptional = new Erfurt_Sparql_Query2_GroupGraphPattern();
$queryOptional->addTriple($searchVar, new Erfurt_Sparql_Query2_IriRef($rel[0]), $subVar);
$out[] = $queryOptional;
}
}
$inout = new Erfurt_Sparql_Query2_GroupOrUnionGraphPattern();
$inout->addElements($in);
$inout->addElements($out);
$elements[] = $inout;
/*$elements[] = new Erfurt_Sparql_Query2_Triple(
$searchVar,
new Erfurt_Sparql_Query2_IriRef(EF_RDF_TYPE),
$classVar
);*/
// add filter
$elements[] = new Erfurt_Sparql_Query2_Filter(new Erfurt_Sparql_Query2_sameTerm($searchVar, new Erfurt_Sparql_Query2_IriRef($uri)));
$query->addElements($elements);
$query->setLimit(1);
// log results
$this->_owApp->logger->info('NavigationController CHECK SUB: ' . PHP_EOL . $query->__toString());
return $query;
}
/**
* Searches the local database for URIs. If mode is set to properties only,
* only defined properties and URIs that are used at least once as a
* property are returned.
*
* the classes array is used for class restrictions
*
* @param array $termsArray
* @param string $modelUri
* @param int $mode
* @param int $limit
* @param array $classes
*
* @return array
*/
private function _searchLocal(array $termsArray, $modelUri, $mode, $limit, $classes = array())
{
if ($mode === self::SEARCH_MODE_PROPERTIES) {
return $this->_searchLocalPropertiesOnly($termsArray, $modelUri, $limit);
}
$store = Erfurt_App::getInstance()->getStore();
// get a store specific text-search query2 object
$searchPattern = $store->getSearchPattern(implode(" ", $termsArray), $modelUri);
$query = new Erfurt_Sparql_Query2();
$query->addElements($searchPattern);
$projVar = new Erfurt_Sparql_Query2_Var('resourceUri');
$query->addProjectionVar($projVar);
// add class restriction patterns for each class
foreach ($classes as $class) {
$classPattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$classPattern->addTriple($projVar, new Erfurt_Sparql_Query2_IriRef(EF_RDF_TYPE), new Erfurt_Sparql_Query2_IriRef($class));
$query->addElement($classPattern);
}
$query->setLimit(20);
$query->setDistinct(true);
$queryResult = $store->sparqlQuery($query, array('result_format' => 'extended'));
$tempResult = array();
foreach ($queryResult['results']['bindings'] as $row) {
$object = isset($row['o']) ? $row['o']['value'] : null;
$weight = $this->_getWeight($termsArray, $row['resourceUri']['value'], $object);
if (isset($tempResult[$row['resourceUri']['value']])) {
if ($weight > $tempResult[$row['resourceUri']['value']]) {
$tempResult[$row['resourceUri']['value']] = $weight;
}
} else {
$tempResult[$row['resourceUri']['value']] = $weight;
}
}
arsort($tempResult);
require_once 'OntoWiki/Model/TitleHelper.php';
require_once 'OntoWiki/Utils.php';
if (null !== $modelUri) {
$model = $store->getModel($modelUri, false);
$titleHelper = new OntoWiki_Model_TitleHelper($model);
} else {
$titleHelper = new OntoWiki_Model_TitleHelper();
}
$titleHelper->addResources(array_keys($tempResult));
$translate = $this->_owApp->translate;
// create different source description strings
if (count($classes) > 0) {
$sourceString = $translate->_('Local Search') . ' (' . $translate->_('recommended') . ')';
} else {
$sourceString = $translate->_('Local Search');
}
$result = array();
foreach ($tempResult as $uri => $w) {
$title = $titleHelper->getTitle($uri);
if (null !== $title) {
$result[$uri] = str_replace('|', 'Ι', $title) . '|' . $uri . '|' . $sourceString;
} else {
$result[$uri] = OntoWiki_Utils::compactUri($uri) . $uri . '|' . $sourceString;
}
}
return $result;
}
/**
* Method that counts already existing distinct datasets for given uri
*
* @param $uri uri string
*
* @return int distinct existing datasets
*/
private function countUriPattern($uri)
{
$query = new Erfurt_Sparql_Query2();
$query->setDistinct(true);
$unions = new Erfurt_Sparql_Query2_GroupOrUnionGraphPattern();
$subjectVar = new Erfurt_Sparql_Query2_Var('s');
$query->addProjectionVar($subjectVar);
// create six temporary vars (not selected in query)
$tempVars = array();
for ($i = 0; $i < 6; $i++) {
$tempVars[] = new Erfurt_Sparql_Query2_Var('var' . $i);
}
$singlePattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$singlePattern->addTriple($subjectVar, $tempVars[0], $tempVars[1]);
$unions->addElement($singlePattern);
$singlePattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$singlePattern->addTriple($tempVars[2], $subjectVar, $tempVars[3]);
$unions->addElement($singlePattern);
$singlePattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$singlePattern->addTriple($tempVars[4], $tempVars[5], $subjectVar);
$unions->addElement($singlePattern);
$query->getWhere()->addElement($unions);
$filter = new Erfurt_Sparql_Query2_ConditionalOrExpression();
$filter->addElement(new Erfurt_Sparql_Query2_Regex($subjectVar, new Erfurt_Sparql_Query2_RDFLiteral('^' . $uri), new Erfurt_Sparql_Query2_RDFLiteral('i')));
$query->addFilter($filter);
$result = $this->_owApp->erfurt->getStore()->countWhereMatches($this->_model->getModelIri(), $query->getWhere(), 's', true);
return $result;
}
/**
* Moves resource to new URI
* renaming all occurences of the resource.
*
* @param string $oldUri The URI that identifies the resource.
* @param string $newUri The URI to move resource to.
*
* @return void
*/
public function renameResource($oldUri, $newUri)
{
$query = new Erfurt_Sparql_Query2();
$query->setDistinct(true);
$vars = array();
foreach (array('s', 'p', 'o') as $varName) {
$vars[$varName] = new Erfurt_Sparql_Query2_Var($varName);
$query->addProjectionVar($vars[$varName]);
}
$oldUriRef = new Erfurt_Sparql_Query2_IriRef($oldUri);
$union = new Erfurt_Sparql_Query2_GroupOrUnionGraphPattern();
foreach ($vars as $var) {
$group = new Erfurt_Sparql_Query2_GroupGraphPattern();
$group->addTriple($vars['s'], $vars['p'], $vars['o']);
$group->addFilter(new Erfurt_Sparql_Query2_sameTerm($var, $oldUriRef));
$union->addElement($group);
}
$query->addElement($union);
$result = $this->sparqlQuery($query, array('result_format' => 'extended'));
$removed = array();
$added = array();
foreach ($result['results']['bindings'] as $s) {
// result format from sparqlQuery
// isn't the same as format for delete/addMultipleStatements
if (array_key_exists('xml:lang', $s['o'])) {
$s['o']['lang'] = $s['o']['xml:lang'];
unset($s['o']['xml:lang']);
}
$removed[$s['s']['value']][$s['p']['value']][] = $s['o'];
foreach (array('s', 'p', 'o') as $varName) {
if ($s[$varName]['type'] === 'uri' && $s[$varName]['value'] === $oldUri) {
$s[$varName]['value'] = $newUri;
}
}
$added[$s['s']['value']][$s['p']['value']][] = $s['o'];
}
$this->deleteMultipleStatements($removed);
$this->addMultipleStatements($added);
}
