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<?php |
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/* |
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* This file is part of the AntiMattr MongoDB Migrations Library, a library by Matthew Fitzgerald. |
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* |
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* (c) 2014 Matthew Fitzgerald |
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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 AntiMattr\MongoDB\Migrations\Collection; |
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use Exception; |
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use MongoDB\Collection; |
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use MongoDB\Database; |
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/** |
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* @author Matthew Fitzgerald <[email protected]> |
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*/ |
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class Statistics |
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{ |
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const COUNT = 'count'; |
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const SIZE = 'size'; |
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const AVG_OBJ_SIZE = 'avgObjSize'; |
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const STORAGE_SIZE = 'storageSize'; |
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const NUM_EXTENTS = 'numExtents'; |
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const NINDEXES = 'nindexes'; |
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const LAST_EXTENT_SIZE = 'lastExtentSize'; |
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const PADDING_FACTOR = 'paddingFactor'; |
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const TOTAL_INDEX_SIZE = 'totalIndexSize'; |
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public static $metrics = [ |
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self::COUNT, |
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self::SIZE, |
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self::AVG_OBJ_SIZE, |
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self::STORAGE_SIZE, |
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self::NUM_EXTENTS, |
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self::NINDEXES, |
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self::LAST_EXTENT_SIZE, |
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self::PADDING_FACTOR, |
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self::TOTAL_INDEX_SIZE, |
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]; |
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/** |
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* @var \MongoDB\Collection |
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*/ |
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private $collection; |
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/** |
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* @var array |
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*/ |
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private $before = []; |
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/** |
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* @var array |
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*/ |
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private $after = []; |
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public function setDatabase(Database $database) |
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{ |
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$this->database = $database; |
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} |
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/** |
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* @param \MongoDB\Collection |
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*/ |
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public function setCollection(Collection $collection) |
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{ |
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$this->collection = $collection; |
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} |
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/** |
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* @return \MongoDB\Collection |
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*/ |
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public function getCollection() |
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{ |
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return $this->collection; |
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} |
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public function updateBefore() |
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{ |
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$data = $this->getCollectionStats(); |
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foreach ($data as $key => $value) { |
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if (in_array($key, static::$metrics)) { |
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$this->before[$key] = $value; |
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} |
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} |
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} |
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/** |
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* @return array |
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*/ |
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public function getBefore() |
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{ |
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return $this->before; |
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} |
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public function updateAfter() |
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{ |
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$data = $this->getCollectionStats(); |
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foreach ($data as $key => $value) { |
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if (in_array($key, static::$metrics)) { |
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$this->after[$key] = $value; |
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} |
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} |
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} |
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/** |
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* @return array |
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*/ |
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public function getAfter() |
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{ |
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return $this->after; |
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} |
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/** |
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* @return array |
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* |
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* @throws \Exception |
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*/ |
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protected function getCollectionStats() |
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{ |
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$name = $this->collection->getCollectionName(); |
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if (!$data = $this->database->command(['collStats' => $name])) { |
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$message = sprintf( |
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'Statistics not found for collection %s', |
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$name |
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); |
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throw new Exception($message); |
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} |
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return $data; |
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} |
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} |
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