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148 lines
4.6 KiB
PHP
148 lines
4.6 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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 Symfony\Component\Cache\Simple;
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use Psr\Log\LoggerAwareInterface;
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use Psr\SimpleCache\CacheInterface;
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use Symfony\Component\Cache\CacheItem;
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use Symfony\Component\Cache\Exception\InvalidArgumentException;
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use Symfony\Component\Cache\ResettableInterface;
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use Symfony\Component\Cache\Traits\ArrayTrait;
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/**
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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class ArrayCache implements CacheInterface, LoggerAwareInterface, ResettableInterface
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{
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use ArrayTrait {
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ArrayTrait::deleteItem as delete;
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ArrayTrait::hasItem as has;
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}
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private $defaultLifetime;
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/**
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* @param int $defaultLifetime
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* @param bool $storeSerialized Disabling serialization can lead to cache corruptions when storing mutable values but increases performance otherwise
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*/
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public function __construct($defaultLifetime = 0, $storeSerialized = true)
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{
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$this->defaultLifetime = (int) $defaultLifetime;
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$this->storeSerialized = $storeSerialized;
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}
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/**
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* {@inheritdoc}
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*/
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public function get($key, $default = null)
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{
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foreach ($this->getMultiple(array($key), $default) as $v) {
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return $v;
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function getMultiple($keys, $default = null)
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{
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if ($keys instanceof \Traversable) {
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$keys = iterator_to_array($keys, false);
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} elseif (!is_array($keys)) {
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throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', is_object($keys) ? get_class($keys) : gettype($keys)));
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}
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foreach ($keys as $key) {
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CacheItem::validateKey($key);
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}
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return $this->generateItems($keys, time(), function ($k, $v, $hit) use ($default) { return $hit ? $v : $default; });
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}
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/**
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* {@inheritdoc}
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*/
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public function deleteMultiple($keys)
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{
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if (!is_array($keys) && !$keys instanceof \Traversable) {
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throw new InvalidArgumentException(sprintf('Cache keys must be array or Traversable, "%s" given', is_object($keys) ? get_class($keys) : gettype($keys)));
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}
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foreach ($keys as $key) {
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$this->delete($key);
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}
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return true;
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}
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/**
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* {@inheritdoc}
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*/
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public function set($key, $value, $ttl = null)
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{
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CacheItem::validateKey($key);
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return $this->setMultiple(array($key => $value), $ttl);
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}
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/**
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* {@inheritdoc}
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*/
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public function setMultiple($values, $ttl = null)
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{
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if (!is_array($values) && !$values instanceof \Traversable) {
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throw new InvalidArgumentException(sprintf('Cache values must be array or Traversable, "%s" given', is_object($values) ? get_class($values) : gettype($values)));
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}
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$valuesArray = array();
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foreach ($values as $key => $value) {
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is_int($key) || CacheItem::validateKey($key);
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$valuesArray[$key] = $value;
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}
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if (false === $ttl = $this->normalizeTtl($ttl)) {
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return $this->deleteMultiple(array_keys($valuesArray));
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}
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if ($this->storeSerialized) {
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foreach ($valuesArray as $key => $value) {
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try {
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$valuesArray[$key] = serialize($value);
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} catch (\Exception $e) {
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$type = is_object($value) ? get_class($value) : gettype($value);
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CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', array('key' => $key, 'type' => $type, 'exception' => $e));
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return false;
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}
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}
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}
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$expiry = 0 < $ttl ? time() + $ttl : PHP_INT_MAX;
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foreach ($valuesArray as $key => $value) {
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$this->values[$key] = $value;
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$this->expiries[$key] = $expiry;
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}
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return true;
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}
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private function normalizeTtl($ttl)
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{
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if (null === $ttl) {
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return $this->defaultLifetime;
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}
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if ($ttl instanceof \DateInterval) {
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$ttl = (int) \DateTime::createFromFormat('U', 0)->add($ttl)->format('U');
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}
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if (is_int($ttl)) {
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return 0 < $ttl ? $ttl : false;
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}
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throw new InvalidArgumentException(sprintf('Expiration date must be an integer, a DateInterval or null, "%s" given', is_object($ttl) ? get_class($ttl) : gettype($ttl)));
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}
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}
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