113 lines
3.1 KiB
PHP
113 lines
3.1 KiB
PHP
<?php
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namespace Doctrine\Common\Cache;
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use InvalidArgumentException;
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use MongoCollection;
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use MongoDB\Collection;
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use const E_USER_DEPRECATED;
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use function trigger_error;
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/**
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* MongoDB cache provider.
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*/
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class MongoDBCache extends CacheProvider
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{
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/**
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* The data field will store the serialized PHP value.
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*/
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public const DATA_FIELD = 'd';
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/**
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* The expiration field will store a MongoDate value indicating when the
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* cache entry should expire.
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*
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* With MongoDB 2.2+, entries can be automatically deleted by MongoDB by
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* indexing this field with the "expireAfterSeconds" option equal to zero.
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* This will direct MongoDB to regularly query for and delete any entries
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* whose date is older than the current time. Entries without a date value
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* in this field will be ignored.
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*
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* The cache provider will also check dates on its own, in case expired
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* entries are fetched before MongoDB's TTLMonitor pass can expire them.
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*
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* @see http://docs.mongodb.org/manual/tutorial/expire-data/
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*/
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public const EXPIRATION_FIELD = 'e';
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/** @var CacheProvider */
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private $provider;
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/**
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* This provider will default to the write concern and read preference
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* options set on the collection instance (or inherited from MongoDB or
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* MongoClient). Using an unacknowledged write concern (< 1) may make the
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* return values of delete() and save() unreliable. Reading from secondaries
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* may make contain() and fetch() unreliable.
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*
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* @see http://www.php.net/manual/en/mongo.readpreferences.php
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* @see http://www.php.net/manual/en/mongo.writeconcerns.php
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*
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* @param MongoCollection|Collection $collection
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*/
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public function __construct($collection)
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{
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if ($collection instanceof MongoCollection) {
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@trigger_error('Using a MongoCollection instance for creating a cache adapter is deprecated and will be removed in 2.0', E_USER_DEPRECATED);
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$this->provider = new LegacyMongoDBCache($collection);
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} elseif ($collection instanceof Collection) {
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$this->provider = new ExtMongoDBCache($collection);
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} else {
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throw new InvalidArgumentException('Invalid collection given - expected a MongoCollection or MongoDB\Collection instance');
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}
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}
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/**
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* {@inheritdoc}
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*/
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protected function doFetch($id)
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{
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return $this->provider->doFetch($id);
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}
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/**
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* {@inheritdoc}
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*/
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protected function doContains($id)
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{
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return $this->provider->doContains($id);
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}
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/**
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* {@inheritdoc}
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*/
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protected function doSave($id, $data, $lifeTime = 0)
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{
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return $this->provider->doSave($id, $data, $lifeTime);
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}
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/**
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* {@inheritdoc}
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*/
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protected function doDelete($id)
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{
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return $this->provider->doDelete($id);
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}
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/**
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* {@inheritdoc}
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*/
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protected function doFlush()
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{
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return $this->provider->doFlush();
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}
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/**
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* {@inheritdoc}
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*/
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protected function doGetStats()
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{
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return $this->provider->doGetStats();
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}
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}
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