function query($q, $result_format = '', $src = '', $keep_bnode_ids = 0, $log_query = 0)
{
if ($log_query) {
$this->logQuery($q);
}
ARC2::inc('SPARQLPlusParser');
$p = new ARC2_SPARQLPlusParser($this->a, $this);
$p->parse($q, $src);
$infos = $p->getQueryInfos();
$t1 = ARC2::mtime();
if (!($errs = $p->getErrors())) {
$qt = $infos['query']['type'];
$r = array('query_type' => $qt, 'result' => $this->runQuery($q, $qt, $infos));
} else {
$r = array('result' => '');
}
$t2 = ARC2::mtime();
$r['query_time'] = $t2 - $t1;
/* query result */
if ($result_format == 'raw') {
return $r['result'];
}
if ($result_format == 'rows') {
return $this->v('rows', array(), $r['result']);
}
if ($result_format == 'row') {
if (!isset($r['result']['rows'])) {
return array();
}
return $r['result']['rows'] ? $r['result']['rows'][0] : array();
}
return $r;
}
function handleQueryRequest($q)
{
if (preg_match('/^dump/i', $q)) {
$infos = array('query' => array('type' => 'dump'));
$this->is_dump = 1;
} else {
ARC2::inc('SPARQLPlusParser');
$p = new ARC2_SPARQLPlusParser($this->a, $this);
$p->parse($q);
$infos = $p->getQueryInfos();
}
/* errors? */
if ($errors = $this->getErrors()) {
$this->setHeader('http', 'HTTP/1.1 400 Bad Request');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = htmlspecialchars(join("\n", $errors));
return true;
}
$qt = $infos['query']['type'];
/* wrong read key? */
if ($this->read_key && $this->p('key') != $this->read_key && preg_match('/^(select|ask|construct|describe|dump)$/', $qt)) {
$this->setHeader('http', 'HTTP/1.1 401 Access denied');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Access denied. Missing or wrong "key" parameter.';
return true;
}
/* wrong write key? */
if ($this->write_key && $this->p('key') != $this->write_key && preg_match('/^(load|insert|delete|update)$/', $qt)) {
$this->setHeader('http', 'HTTP/1.1 401 Access denied');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Access denied. Missing or wrong "key" parameter.';
return true;
}
/* non-allowed query type? */
if (!in_array($qt, $this->getFeatures())) {
$this->setHeader('http', 'HTTP/1.1 401 Access denied');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Access denied for "' . $qt . '" query';
return true;
}
/* load/insert/delete via GET */
if (in_array($qt, array('load', 'insert', 'delete')) && isset($_GET['query'])) {
$this->setHeader('http', 'HTTP/1.1 501 Not Implemented');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Query type "' . $qt . '" not supported via GET';
return true;
}
/* unsupported query type */
if (!in_array($qt, array('select', 'ask', 'describe', 'construct', 'load', 'insert', 'delete', 'dump'))) {
$this->setHeader('http', 'HTTP/1.1 501 Not Implemented');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Unsupported query type "' . $qt . '"';
return true;
}
/* adjust infos */
$infos = $this->adjustQueryInfos($infos);
$t1 = ARC2::mtime();
$r = array('result' => $this->runQuery($infos, $qt));
$t2 = ARC2::mtime();
$r['query_time'] = $t2 - $t1;
/* query errors? */
if ($errors = $this->getErrors()) {
$this->setHeader('http', 'HTTP/1.1 400 Bad Request');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Error: ' . join("\n", $errors);
return true;
}
/* result */
$m = 'get' . ucfirst($qt) . 'ResultDoc';
if (method_exists($this, $m)) {
$this->result = $this->{$m}($r);
} else {
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Result serializer not available, dumping raw data:' . "\n" . print_r($r, 1);
}
}
function runQueryEvaluationTest($id)
{
$nl = "\n";
$r = '';
/* get action */
$q = '
PREFIX mf: <http://www.w3.org/2001/sw/DataAccess/tests/test-manifest#> .
PREFIX qt: <http://www.w3.org/2001/sw/DataAccess/tests/test-query#> .
SELECT DISTINCT ?query ?data ?graph_data ?result WHERE {
<' . $id . '> mf:action ?action ;
mf:result ?result .
?action qt:query ?query .
OPTIONAL {
?action qt:data ?data .
}
OPTIONAL {
?action qt:graphData ?graph_data .
}
}
';
$qr = $this->store->query($q);
$rows = $qr['result']['rows'];
$infos = array();
foreach (array('query', 'data', 'result', 'graph_data') as $var) {
$infos[$var] = array();
$infos[$var . '_value'] = array();
foreach ($rows as $row) {
if (isset($row[$var])) {
if (!in_array($row[$var], $infos[$var])) {
$infos[$var][] = $row[$var];
$infos[$var . '_value'][] = $this->getFile($row[$var]);
}
}
}
${$var} = $infos[$var];
${$var . '_value'} = $infos[$var . '_value'];
if (count($infos[$var]) == 1) {
${$var} = $infos[$var][0];
${$var . '_value'} = $infos[$var . '_value'][0];
}
if (${$var} && $var != '-result') {
//echo '<pre>' . $$var . $nl . $nl . htmlspecialchars(${$var . '_value'}) . '</pre><hr />';
}
}
/* query infos */
ARC2::inc('SPARQLPlusParser');
$parser = new ARC2_SPARQLPlusParser($this->a, $this);
$parser->parse($query_value, $query);
$infos = $parser->getQueryInfos();
$rest = $parser->getUnparsedCode();
$errors = $parser->getErrors();
$q_type = !$errors ? $infos['query']['type'] : '';
/* add data */
$dsets = array();
$gdsets = array();
if ($data) {
$dsets = is_array($data) ? array_merge($dsets, $data) : array_merge($dsets, array($data));
}
if ($graph_data) {
$gdsets = is_array($graph_data) ? array_merge($gdsets, $graph_data) : array_merge($gdsets, array($graph_data));
}
if (!$dsets && !$gdsets) {
foreach ($infos['query']['dataset'] as $set) {
if ($set['named']) {
$gdsets[] = $set['graph'];
} else {
$dsets[] = $set['graph'];
}
}
}
$store = $this->data_store;
$store->reset();
foreach ($dsets as $graph) {
$qr = $store->query('LOAD <' . $graph . '>');
}
foreach ($gdsets as $graph) {
$qr = $store->query('LOAD <' . $graph . '> INTO <' . $graph . '>');
}
/* run query */
if ($query) {
$sql = $store->query($query_value, 'sql', $query);
$qr = $store->query($query_value, '', $query);
$qr_result = $qr['result'];
if ($q_type == 'select') {
$qr_result = $this->adjustBnodes($qr['result'], $id);
} elseif ($q_type == 'construct') {
$ser = ARC2::getTurtleSerializer($this->a);
$qr_result = $ser->getSerializedIndex($qr_result);
}
}
//echo '<pre>query result: ' . $nl . htmlspecialchars(print_r($qr_result, 1)) . '</pre>';
if (!$query || $errors || $rest) {
return array('pass' => 0, 'info' => 'query could not be parsed' . htmlspecialchars($query_value));
}
$m = 'isSame' . $q_type . 'Result';
$sub_r = $this->{$m}($qr_result, $result_value, $result, $id);
$pass = $sub_r['pass'];
if (in_array($id, array('http://www.w3.org/2001/sw/DataAccess/tests/data-r2/sort/manifest#dawg-sort-6', 'http://www.w3.org/2001/sw/DataAccess/tests/data-r2/sort/manifest#dawg-sort-8', 'http://www.w3.org/2001/sw/DataAccess/tests/data-r2/sort/manifest#dawg-sort-builtin'))) {
$pass = 0;
/* manually checked 2007-09-18 */
}
if (in_array($id, array('http://www.w3.org/2001/sw/DataAccess/tests/data-r2/sort/manifest#dawg-sort-function', 'http://www.w3.org/2001/sw/DataAccess/tests/data-r2/reduced/manifest#reduced-1', 'http://www.w3.org/2001/sw/DataAccess/tests/data-r2/reduced/manifest#reduced-2'))) {
$pass = 1;
/* manually checked 2007-11-28 */
}
$pass_info = $sub_r['info'];
$info = print_r($pass_info, 1) . $nl;
$info .= '<hr />sql: ' . $nl . htmlspecialchars($sql['result']) . '<hr />';
$info .= $pass ? '' : print_r($graph_data, 1) . $nl . htmlspecialchars(print_r($graph_data_value, 1)) . '<hr />';
$info .= $pass ? '' : print_r($data, 1) . $nl . htmlspecialchars(print_r($data_value, 1)) . '<hr />';
$info .= $pass ? '' : $query . $nl . htmlspecialchars($query_value) . '<hr />';
$info .= $pass ? '' : '<pre>query result: ' . $nl . htmlspecialchars(print_r($qr_result, 1)) . '</pre>' . '<hr />';
$info .= $pass ? '' : print_r($infos, 1);
return array('pass' => $pass, 'info' => $info);
}
function query($q, $result_format = '', $src = '', $keep_bnode_ids = 0, $log_query = 0)
{
if ($log_query) {
$this->logQuery($q);
}
$con = $this->getDBCon();
if (preg_match('/^dump/i', $q)) {
$infos = array('query' => array('type' => 'dump'));
} else {
ARC2::inc('SPARQLPlusParser');
$p = new ARC2_SPARQLPlusParser($this->a, $this);
$p->parse($q, $src);
$infos = $p->getQueryInfos();
}
if ($result_format == 'infos') {
return $infos;
}
$infos['result_format'] = $result_format;
if (!isset($p) || !$p->getErrors()) {
$qt = $infos['query']['type'];
if (!in_array($qt, array('select', 'ask', 'describe', 'construct', 'load', 'insert', 'delete', 'dump'))) {
return $this->addError('Unsupported query type "' . $qt . '"');
}
$t1 = ARC2::mtime();
$r = array('query_type' => $qt, 'result' => $this->runQuery($infos, $qt, $keep_bnode_ids, $q));
$t2 = ARC2::mtime();
$r['query_time'] = $t2 - $t1;
/* query result */
if ($result_format == 'raw') {
return $r['result'];
}
if ($result_format == 'rows') {
return $r['result']['rows'] ? $r['result']['rows'] : array();
}
if ($result_format == 'row') {
return $r['result']['rows'] ? $r['result']['rows'][0] : array();
}
return $r;
}
return 0;
}
function __init()
{
parent::__init();
}
