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<?php |
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/* |
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* This file is part of the PHPProm package. |
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* |
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* (c) Philip Lehmann-Böhm <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace PHPProm\Storage; |
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/** |
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* Class MongoDB |
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* Storage implementation using MongoDB. |
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* @package PHPProm\Storage |
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*/ |
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class MongoDB extends AbstractStorage { |
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/** |
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* @var \MongoDB\Driver\Manager |
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* The MongoDB Driver Manager. |
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*/ |
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protected $mongoDBManager; |
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/** |
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* @var string |
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* The database name for the data. |
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*/ |
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protected $database; |
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/** |
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* @var string |
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* The collection name for the data. |
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*/ |
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protected $collection; |
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/** |
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* MongoDB constructor. |
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* |
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* @param string $host |
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* a mongodb:// connection URI |
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* @param string $database |
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* the database to use, defaults to "phppromdb" |
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* @param string $collection |
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* the collection to use, defaults to "measurements" |
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* @param array $options |
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* connection string options, defaults to [] |
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* @param array $driverOptions |
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* any driver-specific options not included in MongoDB connection spec, defaults to [] |
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*/ |
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public function __construct($host, $database = 'phppromdb', $collection = 'measurements', array $options = [], array $driverOptions = []) { |
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parent::__construct(); |
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$this->mongoDBManager = new \MongoDB\Driver\Manager($host, $options, $driverOptions); |
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$this->database = $database; |
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$this->collection = $collection; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function storeMeasurement($metric, $key, $value) { |
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$bulkWrite = new \MongoDB\Driver\BulkWrite; |
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$document = ['key' => $metric.':'.$key, 'value' => $value]; |
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$filter = ['key' => $metric.':'.$key]; |
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$bulkWrite->update($filter, $document, ['upsert' => true]); |
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$writeConcern = new \MongoDB\Driver\WriteConcern(\MongoDB\Driver\WriteConcern::MAJORITY, 1000); |
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$this->mongoDBManager->executeBulkWrite($this->database.'.'.$this->collection, $bulkWrite, $writeConcern); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function incrementMeasurement($metric, $key) { |
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$filter = ['key' => $metric.':'.$key]; |
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$options = ['limit' => 1]; |
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$query = new \MongoDB\Driver\Query($filter, $options); |
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$results = $this->mongoDBManager->executeQuery($this->database.'.'.$this->collection, $query); |
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$value = 1; |
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foreach ($results as $result) { |
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$value += $result->value; |
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break; |
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} |
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$this->storeMeasurement($metric, $key, $value); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getMeasurements($metric, array $keys, $defaultValue = 'Nan') { |
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$prefixedKeys = array_map(function($key) use ($metric) { |
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return $metric.':'.$key; |
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}, $keys); |
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$measurements = []; |
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foreach ($keys as $key) { |
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$measurements[$key] = $defaultValue; |
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} |
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$filter = ['key' => ['$in' => $prefixedKeys]]; |
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$query = new \MongoDB\Driver\Query($filter); |
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$results = $this->mongoDBManager->executeQuery($this->database.'.'.$this->collection, $query); |
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foreach ($results as $result) { |
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$unprefixedKey = substr($result->key, strlen($metric) + 1); |
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$measurements[$unprefixedKey] = (float)$result->value; |
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} |
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return $measurements; |
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} |
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} |
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This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.
To visualize
will produce issues in the first and second line, while this second example
will produce no issues.