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Context.php
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Context.php
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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\App\Http;
/**
* Context data for requests
*/
class Context
{
/**
* Currency cache context
*/
const CONTEXT_CURRENCY = 'current_currency';
/**
* Data storage
*
* @var array
*/
protected $data = [];
/**
* @var array
*/
protected $default = [];
/**
* Data setter
*
* @param string $name
* @param mixed $value
* @param mixed $default
* @return \Magento\Framework\App\Http\Context
*/
public function setValue($name, $value, $default)
{
if ($default !== null) {
$this->default[$name] = $default;
}
$this->data[$name] = $value;
return $this;
}
/**
* Unset data from vary array
*
* @param string $name
* @return null
*/
public function unsValue($name)
{
unset($this->data[$name]);
return $this;
}
/**
* Data getter
*
* @param string $name
* @return mixed|null
*/
public function getValue($name)
{
return isset($this->data[$name])
? $this->data[$name]
: (isset($this->default[$name]) ? $this->default[$name] : null);
}
/**
* Return all data
*
* @return array
*/
public function getData()
{
$data = [];
foreach ($this->data as $name => $value) {
if ($value && $value != $this->default[$name]) {
$data[$name] = $value;
}
}
return $data;
}
/**
* Return vary string to be used as a part of page cache identifier
*
* @return string|null
*/
public function getVaryString()
{
$data = $this->getData();
if (!empty($data)) {
ksort($data);
return sha1(serialize($data));
}
return null;
}
}