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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Config\Model\Config\Structure;
/**
* @api
* @since 100.0.2
*/
class Converter implements \Magento\Framework\Config\ConverterInterface
{
/**
* @var \Magento\Config\Model\Config\Structure\Mapper\Factory
*/
protected $_mapperFactory;
/**
* Mapper type list
*
* @var string[]
*/
protected $_mapperList = [
\Magento\Config\Model\Config\Structure\Mapper\Factory::MAPPER_EXTENDS,
\Magento\Config\Model\Config\Structure\Mapper\Factory::MAPPER_PATH,
\Magento\Config\Model\Config\Structure\Mapper\Factory::MAPPER_DEPENDENCIES,
\Magento\Config\Model\Config\Structure\Mapper\Factory::MAPPER_ATTRIBUTE_INHERITANCE,
\Magento\Config\Model\Config\Structure\Mapper\Factory::MAPPER_IGNORE,
\Magento\Config\Model\Config\Structure\Mapper\Factory::MAPPER_SORTING,
];
/**
* Map of single=>plural sub-node names per node
*
* E.G. first element makes all 'tab' nodes be renamed to 'tabs' in system node.
*
* @var array
*/
protected $_nameMap = [
'system' => ['tab' => 'tabs', 'section' => 'sections'],
'section' => ['group' => 'children'],
'group' => ['field' => 'children', 'group' => 'children'],
'depends' => ['field' => 'fields'],
];
/**
* @param \Magento\Config\Model\Config\Structure\Mapper\Factory $mapperFactory
*/
public function __construct(\Magento\Config\Model\Config\Structure\Mapper\Factory $mapperFactory)
{
$this->_mapperFactory = $mapperFactory;
}
/**
* Convert dom document
*
* @param \DOMNode $source
* @return array
*/
public function convert($source)
{
$result = $this->_convertDOMDocument($source);
foreach ($this->_mapperList as $type) {
/** @var $mapper MapperInterface */
$mapper = $this->_mapperFactory->create($type);
$result = $mapper->map($result);
}
return $result;
}
/**
* Retrieve \DOMDocument as array
*
* @param \DOMNode $root
* @return array|null
* @SuppressWarnings(PHPMD.CyclomaticComplexity)
* @SuppressWarnings(PHPMD.NPathComplexity)
*/
protected function _convertDOMDocument(\DOMNode $root)
{
$result = $this->_processAttributes($root);
$children = $root->childNodes;
$processedSubLists = [];
for ($i = 0; $i < $children->length; $i++) {
$child = $children->item($i);
$childName = $child->nodeName;
$convertedChild = [];
switch ($child->nodeType) {
case XML_COMMENT_NODE:
continue 2;
case XML_TEXT_NODE:
if ($children->length
&& ($child->nodeValue === null || trim($child->nodeValue, "\n ") === '')
) {
continue 2;
}
$childName = 'value';
$convertedChild = $child->nodeValue;
break;
case XML_CDATA_SECTION_NODE:
$childName = 'value';
$convertedChild = $child->nodeValue;
break;
default:
/** @var $child \DOMElement */
if ($childName == 'attribute') {
$childName = $child->getAttribute('type');
}
$convertedChild = $this->_convertDOMDocument($child);
break;
}
if (array_key_exists(
$root->nodeName,
$this->_nameMap
) && array_key_exists(
$child->nodeName,
$this->_nameMap[$root->nodeName]
)
) {
$childName = $this->_nameMap[$root->nodeName][$child->nodeName];
$processedSubLists[] = $childName;
$convertedChild['_elementType'] = $child->nodeName;
}
if (in_array($childName, $processedSubLists)) {
$result = $this->_addProcessedNode($convertedChild, $result, $childName);
} elseif (array_key_exists($childName, $result)) {
$result[$childName] = [$result[$childName], $convertedChild];
$processedSubLists[] = $childName;
} else {
$result[$childName] = $convertedChild;
}
}
if (count($result) == 1 && array_key_exists('value', $result)) {
$result = $result['value'];
}
if ($result == []) {
$result = null;
}
return $result;
}
/**
* Add converted child with processed name
*
* @param array $convertedChild
* @param array $result
* @param string $childName
* @return array
*/
protected function _addProcessedNode($convertedChild, $result, $childName)
{
if (is_array($convertedChild) && array_key_exists('id', $convertedChild)) {
$result[$childName][$convertedChild['id']] = $convertedChild;
} else {
$result[$childName][] = $convertedChild;
}
return $result;
}
/**
* Process element attributes
*
* @param \DOMNode $root
* @return array
*/
protected function _processAttributes(\DOMNode $root)
{
$result = [];
if ($root->hasAttributes()) {
$attributes = $root->attributes;
foreach ($attributes as $attribute) {
if ($root->nodeName == 'attribute' && $attribute->name == 'type') {
continue;
}
$result[$attribute->name] = $attribute->value;
}
return $result;
}
return $result;
}
}