/**
* Get the output number for a query in counting mode.
*
* @note ignore sorting, just count
*
* @param Query $query
*
* @return integer
*/
public function getCountQueryResult(Query $query)
{
$this->sortkeys = array();
$this->compoundConditionBuilder->setSortKeys($this->sortkeys);
$sparqlCondition = $this->compoundConditionBuilder->buildCondition($query->getDescription());
$query->addErrors($this->compoundConditionBuilder->getErrors());
if ($sparqlCondition instanceof SingletonCondition) {
if ($sparqlCondition->condition === '') {
// all URIs exist, no querying
return 1;
} else {
$condition = $this->compoundConditionBuilder->convertConditionToString($sparqlCondition);
$namespaces = $sparqlCondition->namespaces;
$askQueryResult = $this->connection->ask($condition, $namespaces);
return $askQueryResult->isBooleanTrue() ? 1 : 0;
}
} elseif ($sparqlCondition instanceof FalseCondition) {
return 0;
}
$condition = $this->compoundConditionBuilder->convertConditionToString($sparqlCondition);
$namespaces = $sparqlCondition->namespaces;
$options = $this->getOptions($query, $sparqlCondition);
$options['DISTINCT'] = true;
$repositoryResult = $this->connection->selectCount('?' . self::RESULT_VARIABLE, $condition, $options, $namespaces);
return $this->queryResultFactory->newQueryResult($repositoryResult, $query);
}
private function getCountQueryResult(Query $query, Condition $compoundCondition)
{
if ($this->isSingletonConditionWithElementMatch($compoundCondition)) {
if ($compoundCondition->condition === '') {
// all URIs exist, no querying
return 1;
} else {
$condition = $this->compoundConditionBuilder->convertConditionToString($compoundCondition);
$namespaces = $compoundCondition->namespaces;
$askQueryResult = $this->connection->ask($condition, $namespaces);
return $askQueryResult->isBooleanTrue() ? 1 : 0;
}
} elseif ($compoundCondition instanceof FalseCondition) {
return 0;
}
$condition = $this->compoundConditionBuilder->convertConditionToString($compoundCondition);
$namespaces = $compoundCondition->namespaces;
$options = $this->getOptions($query, $compoundCondition);
$options['DISTINCT'] = true;
$repositoryResult = $this->connection->selectCount('?' . self::RESULT_VARIABLE, $condition, $options, $namespaces);
return $this->queryResultFactory->newQueryResult($repositoryResult, $query);
}
