122 lines
2.9 KiB
PHP
122 lines
2.9 KiB
PHP
<?php
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namespace Doctrine\DBAL\Cache;
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use Doctrine\Common\Cache\Cache;
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use function hash;
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use function serialize;
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use function sha1;
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/**
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* Query Cache Profile handles the data relevant for query caching.
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*
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* It is a value object, setter methods return NEW instances.
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*/
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class QueryCacheProfile
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{
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/** @var Cache|null */
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private $resultCacheDriver;
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/** @var int */
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private $lifetime = 0;
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/** @var string|null */
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private $cacheKey;
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/**
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* @param int $lifetime
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* @param string|null $cacheKey
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*/
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public function __construct($lifetime = 0, $cacheKey = null, ?Cache $resultCache = null)
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{
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$this->lifetime = $lifetime;
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$this->cacheKey = $cacheKey;
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$this->resultCacheDriver = $resultCache;
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}
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/**
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* @return Cache|null
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*/
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public function getResultCacheDriver()
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{
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return $this->resultCacheDriver;
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}
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/**
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* @return int
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*/
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public function getLifetime()
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{
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return $this->lifetime;
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}
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/**
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* @return string
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*
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* @throws CacheException
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*/
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public function getCacheKey()
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{
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if ($this->cacheKey === null) {
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throw CacheException::noCacheKey();
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}
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return $this->cacheKey;
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}
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/**
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* Generates the real cache key from query, params, types and connection parameters.
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*
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* @param string $query
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* @param mixed[] $params
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* @param int[]|string[] $types
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* @param mixed[] $connectionParams
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*
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* @return string[]
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*/
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public function generateCacheKeys($query, $params, $types, array $connectionParams = [])
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{
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$realCacheKey = 'query=' . $query .
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'¶ms=' . serialize($params) .
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'&types=' . serialize($types) .
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'&connectionParams=' . hash('sha256', serialize($connectionParams));
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// should the key be automatically generated using the inputs or is the cache key set?
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if ($this->cacheKey === null) {
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$cacheKey = sha1($realCacheKey);
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} else {
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$cacheKey = $this->cacheKey;
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}
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return [$cacheKey, $realCacheKey];
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}
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/**
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* @return \Doctrine\DBAL\Cache\QueryCacheProfile
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*/
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public function setResultCacheDriver(Cache $cache)
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{
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return new QueryCacheProfile($this->lifetime, $this->cacheKey, $cache);
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}
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/**
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* @param string|null $cacheKey
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*
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* @return \Doctrine\DBAL\Cache\QueryCacheProfile
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*/
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public function setCacheKey($cacheKey)
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{
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return new QueryCacheProfile($this->lifetime, $cacheKey, $this->resultCacheDriver);
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}
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/**
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* @param int $lifetime
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*
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* @return \Doctrine\DBAL\Cache\QueryCacheProfile
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*/
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public function setLifetime($lifetime)
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{
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return new QueryCacheProfile($lifetime, $this->cacheKey, $this->resultCacheDriver);
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}
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}
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