/**
* Funkce inicializující PmmlSerializer za využití konfigurace úlohy
* @param Task $task
* @param bool $includeFrequencies=true
* @return GuhaPmmlSerializer
*/
private function initPmmlSerializer(Task $task, $includeFrequencies = true)
{
$pmmlSerializer = $this->xmlSerializersFactory->createGuhaPmmlSerializer($task, null);
$pmmlSerializer->appendTaskSettings();
$pmmlSerializer->appendDataDictionary($includeFrequencies);
$pmmlSerializer->appendTransformationDictionary($includeFrequencies);
return $pmmlSerializer;
}
/**
* Funkce pro vytvoření PMML z konkrétní úlohy
* @param Task $task
* @return string
*/
private function prepareTaskPmml(Task $task)
{
$pmmlSerializer = $this->xmlSerializersFactory->createGuhaPmmlSerializer($task, null);
$pmmlSerializer->appendTaskSettings();
$pmmlSerializer->appendDataDictionary(false);
$pmmlSerializer->appendTransformationDictionary(false);
$pmmlSerializer->appendRules();
return $pmmlSerializer->getPmml()->asXML();
}
/**
* @param Task $task
* @param bool $includeFrequencies=true
* @return \SimpleXMLElement
*/
private function prepareTaskGuhaPmml(Task $task, $includeFrequencies = true)
{
/** @var Metasource $metasource */
$pmmlSerializer = $this->xmlSerializersFactory->createGuhaPmmlSerializer($task, null);
$pmmlSerializer->appendTaskSettings();
$pmmlSerializer->appendDataDictionary($includeFrequencies);
$pmmlSerializer->appendTransformationDictionary($includeFrequencies);
$pmmlSerializer->appendRules();
return $pmmlSerializer->getPmml();
}
/**
* Funkce pro definování úlohy na základě dat z EasyMineru
* @return TaskState
*/
public function startMining()
{
$pmmlSerializer = $this->xmlSerializersFactory->createGuhaPmmlSerializer($this->task);
$taskSettingsSerializer = new TaskSettingsSerializer($pmmlSerializer->getPmml());
$pmml = $taskSettingsSerializer->settingsFromJson($this->task->taskSettingsJson);
//import úlohy a spuštění dolování...
$numRequests = 1;
sendRequest:
$result = $this->queryPost($pmml, array('template' => self::PMML_LM_TEMPLATE));
$ok = strpos($result, 'kbierror') === false && !preg_match('/status=\\"failure\\"/', $result);
if (++$numRequests < self::MAX_MINING_REQUESTS && !$ok) {
sleep(self::REQUEST_DELAY);
goto sendRequest;
}
$taskState = $this->parseTaskState($result);
if ($taskState->rulesCount > 0) {
try {
$this->parseRulesPMML($result);
} catch (\Exception $e) {
}
}
return $taskState;
}
