public function queryStatistics($fld, $recursive = true, $get_cb = array('RODSConnManager', 'getConn'), $rel_cb = array('RODSConnManager', 'releaseConn'))
{
$condition = new RODSGenQueConds();
$select = new RODSGenQueSelFlds();
$ret_data_index = '';
switch ($fld) {
case 'num_dirs':
$select->add('COL_COLL_ID', 'count');
$ret_data_index = 'COL_COLL_ID';
if ($recursive === true) {
$condition->add('COL_COLL_NAME', 'like', $this->path_str . '/%');
} else {
$condition->add('COL_COLL_PARENT_NAME', '=', $this->path_str);
}
break;
case 'num_files':
$select->add('COL_D_DATA_ID', 'count');
$ret_data_index = 'COL_D_DATA_ID';
if ($recursive === true) {
$condition->add('COL_COLL_NAME', 'like', $this->path_str . '/%', array(array('op' => '=', 'val' => $this->path_str)));
} else {
$condition->add('COL_COLL_NAME', '=', $this->path_str);
}
break;
default:
throw new RODSException("Query field '{$fld}' not supported!", 'PERR_USER_INPUT_ERROR');
}
//$conn = RODSConnManager::getConn($this->account);
$conn = call_user_func_array($get_cb, array(&$this->account));
$results = $conn->query($select, $condition);
//RODSConnManager::releaseConn($conn);
call_user_func($rel_cb, $conn);
$result_values = $results->getValues();
if (isset($result_values[$ret_data_index][0])) {
return intval($result_values[$ret_data_index][0]);
} else {
throw new RODSException("Query did not get value back with expected " . "index: {$ret_data_index}!", 'GENERAL_PRODS_ERR');
}
}
