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<?php
/**
* Backend System Configuration reader.
* Retrieves system configuration form layout from system.xml files. Merges configuration and caches it.
*
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Config\Model\Config\Structure;
use Magento\Framework\DataObject;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\View\TemplateEngine\Xhtml\CompilerInterface;
/**
* Class Reader
* @api
* @since 100.0.2
*/
class Reader extends \Magento\Framework\Config\Reader\Filesystem
{
/**
* List of identifier attributes for merging
*
* @var array
*/
protected $_idAttributes = [
'/config/system/tab' => 'id',
'/config/system/section' => 'id',
'/config/system/section(/group)+' => 'id',
'/config/system/section(/group)+/field' => 'id',
'/config/system/section(/group)+/field/depends/field' => 'id',
'/config/system/section(/group)+/field/options/option' => 'label',
];
/**
* @var CompilerInterface
*/
protected $compiler;
/**
* Constructor
*
* @param \Magento\Framework\Config\FileResolverInterface $fileResolver
* @param Converter $converter
* @param \Magento\Config\Model\Config\SchemaLocator $schemaLocator
* @param \Magento\Framework\Config\ValidationStateInterface $validationState
* @param CompilerInterface $compiler
* @param string $fileName
* @param array $idAttributes
* @param string $domDocumentClass
* @param string $defaultScope
*/
public function __construct(
\Magento\Framework\Config\FileResolverInterface $fileResolver,
Converter $converter,
\Magento\Config\Model\Config\SchemaLocator $schemaLocator,
\Magento\Framework\Config\ValidationStateInterface $validationState,
CompilerInterface $compiler,
$fileName = 'system.xml',
$idAttributes = [],
$domDocumentClass = \Magento\Framework\Config\Dom::class,
$defaultScope = 'global'
) {
$this->compiler = $compiler;
parent::__construct(
$fileResolver,
$converter,
$schemaLocator,
$validationState,
$fileName,
$idAttributes,
$domDocumentClass,
$defaultScope
);
}
/**
* Read configuration files
*
* @param array $fileList
* @return array
* @throws LocalizedException
*/
protected function _readFiles($fileList)
{
/** @var \Magento\Framework\Config\Dom $configMerger */
$configMerger = null;
foreach ($fileList as $key => $content) {
try {
$content = $this->processingDocument($content);
if (!$configMerger) {
$configMerger = $this->_createConfigMerger($this->_domDocumentClass, $content);
} else {
$configMerger->merge($content);
}
} catch (\Magento\Framework\Config\Dom\ValidationException $e) {
throw new LocalizedException(
new \Magento\Framework\Phrase(
'The XML in file "%1" is invalid:' . "\n%2\nVerify the XML and try again.",
[$key, $e->getMessage()]
)
);
}
}
if ($this->validationState->isValidationRequired()) {
$errors = [];
if ($configMerger && !$configMerger->validate($this->_schemaFile, $errors)) {
$message = "Invalid Document \n";
throw new LocalizedException(
new \Magento\Framework\Phrase($message . implode("\n", $errors))
);
}
}
$output = [];
if ($configMerger) {
$output = $this->_converter->convert($configMerger->getDom());
}
return $output;
}
/**
* Processing nodes of the document before merging
*
* @param string $content
* @throws \Magento\Framework\Config\Dom\ValidationException
* @return string
*/
protected function processingDocument($content)
{
$object = new DataObject();
$document = new \DOMDocument();
try {
$document->loadXML($content);
} catch (\Exception $e) {
throw new \Magento\Framework\Config\Dom\ValidationException($e->getMessage());
}
$this->compiler->compile($document->documentElement, $object, $object);
return $document->saveXML();
}
}