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<?php
/*
* @author Andreas Åkre Solberg <andreas.solberg@uninett.no>
* @package SimpleSAMLphp
*/
class sspmod_statistics_Ruleset
{
private $statconfig;
private $availrulenames;
private $availrules;
private $available;
/**
* Constructor
*/
public function __construct($statconfig)
{
$this->statconfig = $statconfig;
$this->init();
}
private function init()
{
$statdir = $this->statconfig->getValue('statdir');
$statrules = $this->statconfig->getValue('statrules');
$timeres = $this->statconfig->getValue('timeres');
/*
* Walk through file lists, and get available [rule][fileslot]...
*/
if (!is_dir($statdir)) {
throw new Exception('Statisics output directory [' . $statdir . '] does not exists.');
}
$filelist = scandir($statdir);
$this->available = array();
foreach ($filelist as $file) {
if (preg_match('/([a-z0-9_]+)-([a-z0-9_]+)-([0-9]+)\.stat/', $file, $matches)) {
if (array_key_exists($matches[1], $statrules)) {
if (array_key_exists($matches[2], $timeres))
$this->available[$matches[1]][$matches[2]][] = $matches[3];
}
}
}
if (empty($this->available)) {
throw new Exception('No aggregated statistics files found in [' . $statdir . ']');
}
/*
* Create array with information about available rules..
*/
$this->availrules = array_keys($statrules);
$available_rules = array();
foreach ($this->availrules as $key) {
$available_rules[$key] = array('name' => $statrules[$key]['name'], 'descr' => $statrules[$key]['descr']);
}
$this->availrulenames = $available_rules;
}
public function availableRules()
{
return $this->availrules;
}
public function availableRulesNames()
{
return $this->availrulenames;
}
/**
* Resolve which rule is selected. Taking user preference and checks if it exists.
*/
private function resolveSelectedRule($preferRule = null)
{
$rule = $this->statconfig->getString('default', $this->availrules[0]);
if (!empty($preferRule)) {
if (in_array($preferRule, $this->availrules, true)) {
$rule = $preferRule;
}
}
return $rule;
}
public function getRule($preferRule)
{
$rule = $this->resolveSelectedRule($preferRule);
$statrulesConfig = $this->statconfig->getConfigItem('statrules');
$statruleConfig = $statrulesConfig->getConfigItem($rule);
$presenterClass = SimpleSAML\Module::resolveClass($statruleConfig->getValue('presenter', 'statistics:BaseRule'), 'Statistics_Rulesets');
$statrule = new $presenterClass($this->statconfig, $statruleConfig, $rule, $this->available);
return $statrule;
}
}
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