public static function generateInstances(\alojaweb\Filters\Filters $filters, $param_names, $params, $generalize, $db = null)
{
$filter_options = $filters->getFilterChoices();
$paramAllOptions = $tokens = $instances = array();
// Get info from clusters (Part of header_names!)
$cluster_header_names = array('id_cluster' => 'Cluster', 'datanodes' => 'Datanodes', 'vm_OS' => 'VM.OS', 'vm_cores' => 'VM.Cores', 'vm_RAM' => 'VM.RAM', 'provider' => 'Provider', 'vm_size' => 'VM.Size', 'type' => 'Type');
$cluster_descriptor = array();
$query = "select " . implode(",", array_keys($cluster_header_names)) . " from aloja2.clusters;";
$rows = $db->get_rows($query);
foreach ($rows as $row) {
$cid = $row['id_cluster'];
foreach (array_keys($cluster_header_names) as $cname) {
$cluster_descriptor[$cid][$cname] = $row[$cname];
}
}
// If "No Clusters" -> All clusters
if (empty($params['id_cluster'])) {
$params['id_cluster'] = array();
$paramAllOptions['id_cluster'] = $filter_options['id_cluster'];
foreach ($paramAllOptions['id_cluster'] as $par) {
$params['id_cluster'][] = $par;
}
}
// For each cluster selected, launch an instance...
foreach ($params['id_cluster'] as $cl) {
// Reduce the instance to the HW filter override, or even remove instance if no HW coincides
$remove_if_no_props = FALSE;
foreach (array_keys($cluster_header_names) as $cname) {
if (!empty($params[$cname])) {
// FIXME - When clusters have more than 1 characteristic, change this
// Get only the current_props in params[cname]
$current_props = $cluster_descriptor[$cl][$cname];
$current_props = array($current_props);
$coincidences = array_intersect($current_props, $params[$cname]);
if (empty($coincidences)) {
$remove_if_no_props = TRUE;
} else {
$cluster_descriptor[$cl][$cname] = $coincidences;
}
}
}
if ($remove_if_no_props) {
continue;
}
$cl_characteristics = "Cl" . Utils::multi_implode($cluster_descriptor[$cl], ',');
$instance = '';
foreach ($param_names as $p) {
// Ignore for now. Will be used at each cluster characteristics
if (array_key_exists($p, $cluster_header_names) && $p != "id_cluster") {
continue;
}
if ($p != "id_cluster") {
if (array_key_exists($p, $filter_options)) {
$paramAllOptions[$p] = $filter_options[$p];
}
$tokens[$p] = '';
if ($generalize && empty($params[$p])) {
$tokens[$p] = '*';
} elseif (!$generalize && empty($params[$p])) {
foreach ($paramAllOptions[$p] as $par) {
$tokens[$p] = $tokens[$p] . ($tokens[$p] != '' ? '|' : '') . ($p == 'comp' ? 'Cmp' : '') . ($p == 'id_cluster' ? 'Cl' : '') . $par;
}
} else {
if (is_array($params[$p])) {
foreach ($params[$p] as $par) {
$tokens[$p] = $tokens[$p] . ($tokens[$p] != '' ? '|' : '') . ($p == 'comp' ? 'Cmp' : '') . ($p == 'id_cluster' ? 'Cl' : '') . $par;
}
} else {
$tokens[$p] = $params[$p];
}
}
$instance = $instance . ($instance == '' ? '' : ',') . $tokens[$p];
} else {
$instance = $instance . ($instance == '' ? '' : ',') . $cl_characteristics;
}
}
$instances[] = $instance;
}
return MLUtils::completeInstances($filters, $instances, $param_names, $params, $db);
}
public static function multi_implode($array, $glue)
{
$ret = '';
if (!is_array($array)) {
return $ret;
}
foreach ($array as $item) {
if (is_array($item)) {
$ret .= Utils::multi_implode($item, $glue) . $glue;
} else {
$ret .= $item . $glue;
}
}
$ret = substr($ret, 0, 0 - strlen($glue));
return $ret;
}
