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<?php |
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/** |
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* Database manager and query manager |
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*/ |
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namespace Graviton\AnalyticsBundle\Manager; |
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use Doctrine\ODM\MongoDB\DocumentManager; |
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use Graviton\AnalyticsBundle\Model\AnalyticModel; |
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use Symfony\Component\Serializer\Exception\InvalidArgumentException; |
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/** |
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* Manager for data layer single responsibility |
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* |
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* @author List of contributors <https://github.com/libgraviton/graviton/graphs/contributors> |
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License |
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* @link http://swisscom.ch |
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*/ |
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class AnalyticsManager |
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{ |
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/** @var DocumentManager */ |
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protected $documentManager; |
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/** |
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* AnalyticsManager constructor. |
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* @param DocumentManager $documentManager Db manager and query control |
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*/ |
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public function __construct(DocumentManager $documentManager) |
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{ |
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$this->documentManager = $documentManager; |
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} |
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/** |
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* Query db based on definition |
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* Another option is to use: $collection->createAggregationBuilder(); |
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* |
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* @param AnalyticModel $model Definition |
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* @return array|object |
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*/ |
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public function getData(AnalyticModel $model) |
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{ |
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$conn = $this->documentManager->getConnection(); |
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$db = $this->documentManager->getConfiguration()->getDefaultDB(); |
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$collection = $conn->selectCollection($db, $model->getCollection()); |
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// Build aggregation pipeline |
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$pipeline = $this->buildPipeline($model); |
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$iterator = $collection->aggregate($pipeline); |
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if ('object' === $model->getType()) { |
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return $iterator->getSingleResult(); |
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} |
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return $iterator->toArray(); |
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} |
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/** |
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* Build a output Db Model aggregation pipeline array. |
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* |
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* @param AnalyticModel $model Object class |
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* @return array |
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*/ |
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private function buildPipeline(AnalyticModel $model) |
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{ |
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$rtnPipeline = []; |
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if ($pipeline = $model->getPipeline()) { |
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foreach ($pipeline as $pipe) { |
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foreach ($pipe as $op => $query) { |
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$rtnPipeline[] = [ |
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$op => $this->parseObjectDates($query) |
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]; |
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} |
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} |
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} elseif ($aggregate = $model->getAggregate()) { |
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foreach ($aggregate as $op => $query) { |
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$rtnPipeline[] = [ |
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$op => $this->parseObjectDates($query) |
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]; |
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} |
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} |
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if (empty($rtnPipeline)) { |
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throw new InvalidArgumentException('Wrong configuration for Aggregation pipeline'); |
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} |
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return $rtnPipeline; |
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} |
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/** |
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* Enabling to possibility to create dtae queries |
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* Will replace PARSE_DATE(date|format) |
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* sample: PARSE_DATE(-4 years|Y) -> new DateTime(-4 years)->format(Y) -> 2013 |
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* |
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* @param object $query Aggregation query |
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* @return object |
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*/ |
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private function parseObjectDates($query) |
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{ |
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$string = json_encode($query); |
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preg_match_all('/PARSE_DATE\(([^\)]+)\)/', $string, $matches); |
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if ($matches && array_key_exists(1, $matches) && is_array($matches[1])) { |
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foreach ($matches[0] as $key => $value) { |
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$formatting = explode('|', $matches[1][$key]); |
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$date = new \DateTime($formatting[0]); |
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$string = str_replace('"'.$value.'"', $date->format($formatting[1]), $string); |
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} |
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$query = json_decode($string); |
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} |
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return $query; |
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} |
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} |
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libgraviton /
graviton
