AbstractDecorator.php

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<?php
namespace Magento\Framework\Cache\Backend\Decorator;

abstract class AbstractDecorator extends \Zend_Cache_Backend implements \Zend_Cache_Backend_ExtendedInterface
{
    protected $_backend;

    protected $_decoratorOptions = [];

    public function __construct(array $options = [])
    {
        if (array_key_exists(
            'concrete_backend',
            $options
        ) && $options['concrete_backend'] instanceof \Zend_Cache_Backend_Interface
        ) {
            $this->_backend = $options['concrete_backend'];
            unset($options['concrete_backend']);
        } else {
            \Zend_Cache::throwException(
                "'concrete_backend' is not specified or it does not implement 'Zend_Cache_Backend_Interface' interface"
            );
        }
        foreach ($options as $optionName => $optionValue) {
            if (array_key_exists($optionName, $this->_decoratorOptions)) {
                $this->_decoratorOptions[$optionName] = $optionValue;
            }
        }
    }

    public function setDirectives($directives)
    {
        $this->_backend->setDirectives($directives);
    }

    public function load($cacheId, $noTestCacheValidity = false)
    {
        return $this->_backend->load($cacheId, $noTestCacheValidity);
    }

    public function test($cacheId)
    {
        return $this->_backend->test($cacheId);
    }

    public function save($data, $cacheId, $tags = [], $specificLifetime = false, $priority = 8)
    {
        return $this->_backend->save($data, $cacheId, $tags, $specificLifetime, $priority);
    }

    public function remove($cacheId)
    {
        return $this->_backend->remove($cacheId);
    }

    public function clean($mode = \Zend_Cache::CLEANING_MODE_ALL, $tags = [])
    {
        return $this->_backend->clean($mode, $tags);
    }

    public function getIds()
    {
        return $this->_backend->getIds();
    }

    public function getTags()
    {
        return $this->_backend->getTags();
    }

    public function getIdsMatchingTags($tags = [])
    {
        return $this->_backend->getIdsMatchingTags($tags);
    }

    public function getIdsNotMatchingTags($tags = [])
    {
        return $this->_backend->getIdsNotMatchingTags($tags);
    }

    public function getIdsMatchingAnyTags($tags = [])
    {
        return $this->_backend->getIdsMatchingAnyTags($tags);
    }

    public function getFillingPercentage()
    {
        return $this->_backend->getFillingPercentage();
    }

    public function getMetadatas($cacheId)
    {
        return $this->_backend->getMetadatas($cacheId);
    }

    public function touch($cacheId, $extraLifetime)
    {
        return $this->_backend->touch($cacheId, $extraLifetime);
    }

    public function getCapabilities()
    {
        return $this->_backend->getCapabilities();
    }

    public function setOption($name, $value)
    {
        $this->_backend->setOption($name, $value);
    }

    public function getLifetime($specificLifetime)
    {
        return $this->_backend->getLifetime($specificLifetime);
    }

    public function getTmpDir()
    {
        return $this->_backend->getTmpDir();
    }
}