public function testPublicAccess()
{
$instance = new RepositoryClient('Foo', 'Bar', 'Nu', 'Vim');
$this->assertSame('Foo', $instance->getDefaultGraph());
$this->assertSame('Bar', $instance->getQueryEndpoint());
$this->assertSame('Nu', $instance->getUpdateEndpoint());
$this->assertSame('Vim', $instance->getDataEndpoint());
}
/**
* Execute a SPARQL query and return an RepositoryResult object
* that contains the results. The method throws exceptions based on
* GenericHttpDatabaseConnector::mapHttpRequestError(). If errors occur and this
* method does not throw anything, then an empty result with an error
* code is returned.
*
* @note This function sets the graph that is to be used as part of the
* request. Queries should not include additional graph information.
*
* @param $sparql string with the complete SPARQL query (SELECT or ASK)
*
* @return RepositoryResult
*/
public function doQuery($sparql)
{
if ($this->repositoryClient->getQueryEndpoint() === '') {
throw new BadHttpDatabaseResponseException(BadHttpDatabaseResponseException::ERROR_NOSERVICE, $sparql, 'not specified');
}
$this->httpRequest->setOption(CURLOPT_URL, $this->repositoryClient->getQueryEndpoint());
$this->httpRequest->setOption(CURLOPT_HTTPHEADER, array('Accept: application/sparql-results+xml,application/xml;q=0.8', 'Content-Type: application/x-www-form-urlencoded;charset=UTF-8'));
$this->httpRequest->setOption(CURLOPT_POST, true);
$defaultGraph = $this->repositoryClient->getDefaultGraph();
$parameterString = "query=" . urlencode($sparql) . ($defaultGraph !== '' ? '&default-graph-uri=' . urlencode($defaultGraph) : '');
$this->httpRequest->setOption(CURLOPT_POSTFIELDS, $parameterString);
$httpResponse = $this->httpRequest->execute();
if ($this->httpRequest->getLastErrorCode() == 0) {
$xmlResponseParser = new XmlResponseParser();
return $xmlResponseParser->parse($httpResponse);
}
$this->mapHttpRequestError($this->repositoryClient->getQueryEndpoint(), $sparql);
$repositoryResult = new RepositoryResult();
$repositoryResult->setErrorCode(RepositoryResult::ERROR_UNREACHABLE);
return $repositoryResult;
}
