public function testSetWithMethodsAsk()
{
$queryString = '
ASK
WHERE {
?comment <http://rdfs.org/sioc/ns#about> ?resource.
?comment a <http://rdfs.org/sioc/types#Comment>.
?comment <http://rdfs.org/sioc/ns#has_creator> ?author.
?comment <http://rdfs.org/sioc/ns#content> ?content.
?comment <http://purl.org/dc/terms/created> ?date.
}
ORDER BY DESC(?date)
LIMIT 6';
$queryObject = new Erfurt_Sparql_SimpleQuery();
$queryObject->setAsk();
$queryObject->setWherePart('WHERE {
?comment <http://rdfs.org/sioc/ns#about> ?resource.
?comment a <http://rdfs.org/sioc/types#Comment>.
?comment <http://rdfs.org/sioc/ns#has_creator> ?author.
?comment <http://rdfs.org/sioc/ns#content> ?content.
?comment <http://purl.org/dc/terms/created> ?date.
}');
$queryObject->setOrderClause('DESC(?date)');
$queryObject->setLimit(6);
$this->assertQueryEquals($queryString, (string) $queryObject);
$this->assertEquals(true, $queryObject->isAsk());
$this->assertEquals(null, $queryObject->getSelectClause());
}
public function serializeGraphToString($graphUri, $pretty = false, $useAc = true)
{
$triples = array();
$store = Erfurt_App::getInstance()->getStore();
require_once 'Erfurt/Sparql/SimpleQuery.php';
$sparql = new Erfurt_Sparql_SimpleQuery();
$sparql->setProloguePart('SELECT ?s ?p ?o');
$sparql->addFrom($graphUri);
$sparql->setWherePart('WHERE { ?s ?p ?o }');
$sparql->setOrderClause('?s ?p ?o');
$sparql->setLimit(1000);
$offset = 0;
while (true) {
$sparql->setOffset($offset);
$result = $store->sparqlQuery($sparql, array('result_format' => 'extended', 'use_owl_imports' => false, 'use_additional_imports' => false, 'use_ac' => $useAc));
$counter = 0;
foreach ($result['results']['bindings'] as $stm) {
$s = $stm['s']['value'];
$p = $stm['p']['value'];
$o = $stm['o'];
if (!isset($triples["{$s}"])) {
$triples["{$s}"] = array();
}
if (!isset($triples["{$s}"]["{$p}"])) {
$triples["{$s}"]["{$p}"] = array();
}
if ($o['type'] === 'typed-literal') {
$triples["{$s}"]["{$p}"][] = array('type' => 'literal', 'value' => $o['value'], 'datatype' => $o['datatype']);
} else {
if ($o['type'] === 'typed-literal') {
$oArray = array('type' => 'literal', 'value' => $o['value']);
if (isset($o['xml:lang'])) {
$oArray['lang'] = $o['xml:lang'];
}
$triples["{$s}"]["{$p}"][] = $oArray;
} else {
$triples["{$s}"]["{$p}"][] = array('type' => $o['type'], 'value' => $o['value']);
}
}
$counter++;
}
if ($counter < 1000) {
break;
}
$offset += 1000;
}
return json_encode($triples);
}
public function serializeResourceToString($resource, $graphUri, $pretty = false, $useAc = true, array $additional = array())
{
require_once 'Erfurt/Sparql/SimpleQuery.php';
$query = new Erfurt_Sparql_SimpleQuery();
$query->setProloguePart('SELECT ?resourceUri ?p ?o');
$query->addFrom($graphUri);
/*
* Why not as subject?
* Because serializeQueryResultToString() expects ?resourceUri to be bound.
*/
$query->setWherePart('WHERE { ?resourceUri ?p ?o . FILTER (sameTerm(?resourceUri, <' . $resource . '>))}');
$query->setOrderClause('?resourceUri ?p ?o');
return $this->serializeQueryResultToString($query, $graphUri, $pretty, $useAc);
}
/**
* Searches for properties in the local database.
*
* @param array $termsArray
* @param string $modelUri
* @param int $limit
*
* @return array
*/
private function _searchLocalPropertiesOnly(array $termsArray, $modelUri, $limit)
{
require_once 'Erfurt/Sparql/SimpleQuery.php';
$query = new Erfurt_Sparql_SimpleQuery();
$query->setProloguePart('SELECT DISTINCT ?uri ?o');
if (null !== $modelUri) {
$query->addFrom($modelUri);
}
$where = '{ { ?uri ?p ?o . ?uri <' . EF_RDF_TYPE . '> ?o2 .
FILTER (
sameTerm(?o2, <http://www.w3.org/1999/02/22-rdf-syntax-ns#Property>) ||
sameTerm(?o2, <http://www.w3.org/2002/07/owl#DatatypeProperty>) ||
sameTerm(?o2, <http://www.w3.org/2002/07/owl#ObjectProperty>)
)
FILTER ((';
$uriRegexFilter = array();
foreach ($termsArray as $t) {
$uriRegexFilter[] = 'regex(str(?uri), "' . $t . '", "i")';
}
$where .= implode(' && ', $uriRegexFilter) . ') || (isLiteral(?o) && ';
$oRegexFilter = array();
foreach ($termsArray as $t) {
$oRegexFilter[] = 'regex(?o, "' . $t . '", "i")';
}
$where .= implode(' && ', $oRegexFilter) . ')) } UNION {';
$where .= '?s ?uri ?o .
FILTER (';
$where .= implode(' && ', $uriRegexFilter) . ') } }';
$query->setWherePart($where);
$query->setOrderClause('?uri');
$query->setLimit($limit);
$store = Erfurt_App::getInstance()->getStore();
$queryResult = $store->sparqlQuery($query, array('result_format' => 'extended'));
$tempResult = array();
foreach ($queryResult['results']['bindings'] as $row) {
if ($row['o']['type'] === 'literal') {
$weight = $this->_getWeight($termsArray, $row['uri']['value'], $row['o']['value']);
} else {
$weight = $this->_getWeight($termsArray, $row['uri']['value']);
}
if (isset($tempResult[$row['uri']['value']])) {
if ($weight > $tempResult[$row['uri']['value']]) {
$tempResult[$row['uri']['value']] = $weight;
}
} else {
$tempResult[$row['uri']['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;
$result = array();
foreach ($tempResult as $uri => $w) {
$title = $titleHelper->getTitle($uri);
if (null !== $title) {
$result[$uri] = str_replace('|', 'Ι', $title) . '|' . $uri . '|' . $translate->_('Local Search');
} else {
$result[$uri] = OntoWiki_Utils::compactUri($uri) . $uri . '|' . $translate->_('Local Search');
}
}
return $result;
}
protected function _serializeResource($resource, $useAc = true, $level = 0)
{
require_once 'Erfurt/Sparql/SimpleQuery.php';
$query = new Erfurt_Sparql_SimpleQuery();
$query->setProloguePart('SELECT ?s ?p ?o');
$query->addFrom($this->_graphUri);
$query->setWherePart('WHERE { ?s ?p ?o . FILTER (sameTerm(?s, <' . $resource . '>))}');
$query->setOrderClause('?s ?p ?o');
$query->setLimit(1000);
$offset = 0;
$bnObjects = array();
while (true) {
$query->setOffset($offset);
$result = $this->_store->sparqlQuery($query, array('result_format' => 'extended', 'use_owl_imports' => false, 'use_additional_imports' => false, 'use_ac' => $useAc));
foreach ($result['results']['bindings'] as $row) {
$s = $row['s']['value'];
$p = $row['p']['value'];
$o = $row['o']['value'];
$sType = $row['s']['type'];
$oType = $row['o']['type'];
$lang = isset($row['o']['xml:lang']) ? $row['o']['xml:lang'] : null;
$dType = isset($row['o']['datatype']) ? $row['o']['datatype'] : null;
if ($oType === 'bnode') {
$bnObjects[] = substr($o, 2);
}
$this->_handleStatement($s, $p, $o, $sType, $oType, $lang, $dType);
}
if (count($result['results']['bindings']) < 1000) {
break;
}
$offset += 1000;
}
$this->_forceWrite();
// SCBD -> Write Bnodes, too
if ($level <= 10) {
foreach ($bnObjects as $bn) {
$this->_serializeResource($bn, $useAc, $level + 1);
}
}
// We only return SCBD of the TOP resource...
if ($level > 0) {
return;
}
// SCBD: Do the same for all Resources, that have the resource as object
$query = new Erfurt_Sparql_SimpleQuery();
$query->setProloguePart('SELECT ?s ?p ?o');
$query->addFrom($this->_graphUri);
$query->setWherePart('WHERE { ?s ?p ?o . ?s ?p2 ?o2 . FILTER (sameTerm(?o2, <' . $resource . '>)) }');
$query->setOrderClause('?s ?p ?o');
$query->setLimit(1000);
$offset = 0;
$bnObjects = array();
while (true) {
$query->setOffset($offset);
$result = $this->_store->sparqlQuery($query, array('result_format' => 'extended', 'use_owl_imports' => false, 'use_additional_imports' => false, 'use_ac' => $useAc));
foreach ($result['results']['bindings'] as $row) {
$s = $row['s']['value'];
$p = $row['p']['value'];
$o = $row['o']['value'];
$sType = $row['s']['type'];
$oType = $row['o']['type'];
$lang = isset($row['o']['xml:lang']) ? $row['o']['xml:lang'] : null;
$dType = isset($row['o']['datatype']) ? $row['o']['datatype'] : null;
if ($oType === 'bnode') {
$bnObjects[] = substr($o, 2);
}
$this->_handleStatement($s, $p, $o, $sType, $oType, $lang, $dType);
}
if (count($result['results']['bindings']) < 1000) {
break;
}
$offset += 1000;
}
$this->_forceWrite();
// SCBD -> Write Bnodes, too
if ($level <= 10) {
foreach ($bnObjects as $bn) {
$this->_serializeResource($bn, $useAc, $level + 1);
}
}
}
