143 lines
3.3 KiB
PHP
143 lines
3.3 KiB
PHP
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<?php
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/*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the MIT license. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\Common\Cache;
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/**
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* Array cache driver.
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*
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* @link www.doctrine-project.org
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* @since 2.0
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* @author Benjamin Eberlei <kontakt@beberlei.de>
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Jonathan Wage <jonwage@gmail.com>
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* @author Roman Borschel <roman@code-factory.org>
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* @author David Abdemoulaie <dave@hobodave.com>
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*/
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class ArrayCache extends CacheProvider
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{
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/**
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* @var array[] $data each element being a tuple of [$data, $expiration], where the expiration is int|bool
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*/
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private $data = [];
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/**
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* @var int
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*/
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private $hitsCount = 0;
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/**
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* @var int
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*/
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private $missesCount = 0;
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/**
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* @var int
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*/
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private $upTime;
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/**
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* {@inheritdoc}
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*/
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public function __construct()
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{
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$this->upTime = time();
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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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if (! $this->doContains($id)) {
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$this->missesCount += 1;
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return false;
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}
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$this->hitsCount += 1;
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return $this->data[$id][0];
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}
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/**
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* {@inheritdoc}
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*/
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protected function doContains($id)
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{
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if (! isset($this->data[$id])) {
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return false;
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}
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$expiration = $this->data[$id][1];
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if ($expiration && $expiration < time()) {
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$this->doDelete($id);
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return false;
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}
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return true;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doSave($id, $data, $lifeTime = 0)
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{
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$this->data[$id] = [$data, $lifeTime ? time() + $lifeTime : false];
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return true;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doDelete($id)
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{
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unset($this->data[$id]);
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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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protected function doFlush()
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{
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$this->data = [];
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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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protected function doGetStats()
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{
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return [
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Cache::STATS_HITS => $this->hitsCount,
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Cache::STATS_MISSES => $this->missesCount,
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Cache::STATS_UPTIME => $this->upTime,
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Cache::STATS_MEMORY_USAGE => null,
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Cache::STATS_MEMORY_AVAILABLE => null,
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];
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}
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}
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