State.php

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<?php
namespace Magento\Framework\App\Cache;

use Magento\Framework\App\DeploymentConfig;
use Magento\Framework\App\DeploymentConfig\Writer;
use Magento\Framework\Config\File\ConfigFilePool;

class State implements StateInterface
{
    const PARAM_BAN_CACHE = 'global_ban_use_cache';

    const CACHE_KEY = 'cache_types';

    private $config;

    private $writer;

    private $statuses;

    private $banAll;

    public function __construct(DeploymentConfig $config, Writer $writer, $banAll = false)
    {
        $this->config = $config;
        $this->writer = $writer;
        $this->banAll = $banAll;
    }

    public function isEnabled($cacheType)
    {
        $this->load();
        return isset($this->statuses[$cacheType]) ? (bool)$this->statuses[$cacheType] : false;
    }

    public function setEnabled($cacheType, $isEnabled)
    {
        $this->load();
        $this->statuses[$cacheType] = (int)$isEnabled;
    }

    public function persist()
    {
        $this->load();
        $this->writer->saveConfig([ConfigFilePool::APP_ENV => [self::CACHE_KEY => $this->statuses]]);
    }

    private function load()
    {
        if (null === $this->statuses) {
            $this->statuses = [];
            if ($this->banAll) {
                return;
            }
            $this->statuses = $this->config->getConfigData(self::CACHE_KEY) ?: [];
        }
    }
}