Communication.php

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<?php
namespace Magento\Ui\Config\Converter;

use Magento\Framework\ObjectManager\Config\Reader\Dom;
use Magento\Ui\Config\ConverterInterface;
use Magento\Ui\Config\ConverterUtils;

class Communication implements ConverterInterface
{
    private $converterUtils;

    public function __construct(ConverterUtils $converterUtils)
    {
        $this->converterUtils = $converterUtils;
    }

    public function convert(\DOMNode $node, array $data = [])
    {
        if ($node->nodeType !== XML_ELEMENT_NODE) {
            return [];
        }
        return $this->toArray($node);
    }

    private function toArray(\DOMNode $node)
    {
        $result = [
            'name' => $this->converterUtils->getComponentName($node),
            Dom::TYPE_ATTRIBUTE => 'array'
        ];
        if ($this->hasChildNodes($node)) {
            foreach ($node->childNodes as $childNode) {
                if ($childNode->nodeType === XML_ELEMENT_NODE) {
                    $childNodeName = $this->converterUtils->getComponentName($childNode);
                    $result['item'][$childNodeName] = [
                        'name' => $childNodeName,
                        Dom::TYPE_ATTRIBUTE => 'string',
                        'value' => trim($childNode->nodeValue)
                    ];
                }
            }
        }
        return $result;
    }

    private function hasChildNodes(\DOMNode $node)
    {
        if (!$node->hasChildNodes()) {
            return false;
        }

        foreach ($node->childNodes as $child) {
            if ($child->nodeType == XML_ELEMENT_NODE) {
                return true;
            }
        }

        return false;
    }
}