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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Deploy\Model\DeploymentConfig;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\Flag;
use Magento\Framework\Flag\FlagResource;
use Magento\Framework\FlagFactory;
/**
* Saves and Retrieves deployment configuration hash.
*
* This hash keeps version of last imported data. Hash is used to define whether data was updated
* and import is required.
*
* @see \Magento\Deploy\Model\DeploymentConfig\ChangeDetector::hasChanges()
*/
class Hash
{
/**
* Name of the section where deployment configuration hash is stored.
*/
const CONFIG_KEY = 'config_hash';
/**
* Hash generator.
*
* @var Hash\Generator
*/
private $configHashGenerator;
/**
* Config data collector.
*
* @var DataCollector
*/
private $dataConfigCollector;
/**
* Flag Resource model.
*
* @var FlagResource
*/
private $flagResource;
/**
* Factory class for \Magento\Framework\Flag
*
* @var FlagFactory
*/
private $flagFactory;
/**
* @param Hash\Generator $configHashGenerator the hash generator
* @param DataCollector $dataConfigCollector the config data collector
* @param FlagResource $flagResource
* @param FlagFactory $flagFactory
*/
public function __construct(
Hash\Generator $configHashGenerator,
DataCollector $dataConfigCollector,
FlagResource $flagResource,
FlagFactory $flagFactory
) {
$this->configHashGenerator = $configHashGenerator;
$this->dataConfigCollector = $dataConfigCollector;
$this->flagResource = $flagResource;
$this->flagFactory = $flagFactory;
}
/**
* Updates hash in the storage.
*
* If the specific section name is set, then hash will be updated only for this section,
* in another case hash will be updated for all sections which defined in di.xml
* The hash is generated based on data from configuration files.
*
* @param string $sectionName the specific section name
* @return void
* @throws LocalizedException is thrown when hash was not saved
*/
public function regenerate($sectionName = null)
{
try {
$hashes = $this->get();
$configs = $this->dataConfigCollector->getConfig($sectionName);
foreach ($configs as $section => $config) {
$hashes[$section] = $this->configHashGenerator->generate($config);
}
/** @var Flag $flag */
$flag = $this->getFlagObject();
$flag->setFlagData($hashes);
$this->flagResource->save($flag);
} catch (\Exception $exception) {
throw new LocalizedException(__("The hash isn't saved."), $exception);
}
}
/**
* Retrieves saved hashes from storage.
*
* @return array
*/
public function get()
{
/** @var Flag $flag */
$flag = $this->getFlagObject();
return (array) ($flag->getFlagData() ?: []);
}
/**
* Returns flag object.
*
* We use it for saving hashes of sections in the DB.
*
* @return Flag
*/
private function getFlagObject()
{
/** @var Flag $flag */
$flag = $this->flagFactory
->create(['data' => ['flag_code' => self::CONFIG_KEY]]);
$this->flagResource->load($flag, self::CONFIG_KEY, 'flag_code');
return $flag;
}
}