/**
* Accesses the Core singleton instance
*
* @static
* @return Scenario_Core The core instance.
*/
public static function getInstance()
{
if (null === self::$_instance) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
*
* @return Scenario_Data_Consolidator
*/
private function _loadResults()
{
if ($this->_lastExperiment === null) {
require_once 'Scenario/Exception.php';
throw new Scenario_Exception('_loadResults called while _lastExperiment is null');
}
$exp = $this->_lastExperiment;
require_once 'Scenario/Data/Consolidator.php';
$data = new Scenario_Data_Consolidator(array());
// get data in chunks
$limit = 1000;
$start = 0;
$numresults = 0;
do {
$results = $this->_core->getAdapter()->GetResults($exp, $start, $limit);
$numresults = count($results);
$start += $limit;
foreach ($results as $result) {
if ($result instanceof Scenario_Result) {
$data->addResult($result);
} else {
require_once 'Scenario/Exception.php';
throw new Scenario_Exception('Scenario_ResultSet must contain only Scenario_Result objects.');
}
}
unset($results);
} while ($numresults >= $limit);
return $data;
}
/**
*
* @param string $stylesheet
* @param Scenario_Core $core
*/
public function __construct($stylesheet = self::AS_XML, $core = null)
{
// see also: html
$this->setTranslator($stylesheet);
if ($core == null) {
$this->_core = Scenario_Core::getInstance();
}
}
public function getCore()
{
if ($this->_core != null) {
return $this->_core;
}
return Scenario_Core::getInstance();
}
/**
* Get a safe reference to the core.
*
* @return Scenario_Core
* @todo Pass a reference in upon construction rather than using the singleton.
*/
public function getCore()
{
require_once 'Scenario/Core.php';
return Scenario_Core::getInstance();
}
/**
* Gets the core reference appropriate to this instance.
*
* @return Scenario_Core
* @todo Use a reference to the core rather than the singleton.
*/
public function getCore($default_to_singleton = true)
{
if ($this->_core == null && $default_to_singleton) {
return Scenario_Core::getInstance();
}
return $this->_core;
}