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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\MessageQueue\Consumer\Config\Xml;
use Magento\Framework\MessageQueue\DefaultValueProvider;
use Magento\Framework\MessageQueue\ConsumerInterface;
use Magento\Framework\Communication\Config\ConfigParser;
use Magento\Framework\Communication\ConfigInterface as CommunicationConfig;
/**
* Converts MessageQueue consumers config from \DOMDocument to array
*/
class Converter implements \Magento\Framework\Config\ConverterInterface
{
/**
* @var string
*/
private static $defaultInstance = ConsumerInterface::class;
/**
* @var ConfigParser
*/
private $configParser;
/**
* @var DefaultValueProvider
*/
private $defaultValueProvider;
/**
* Initialize dependencies.
*
* @param ConfigParser $configParser
* @param DefaultValueProvider $defaultValueProvider
*/
public function __construct(ConfigParser $configParser, DefaultValueProvider $defaultValueProvider)
{
$this->configParser = $configParser;
$this->defaultValueProvider = $defaultValueProvider;
}
/**
* @inheritdoc
*/
public function convert($source)
{
$result = [];
/** @var $consumerNode \DOMElement */
foreach ($source->getElementsByTagName('consumer') as $consumerNode) {
$consumerName = $this->getAttributeValue($consumerNode, 'name');
$handler = $this->getAttributeValue($consumerNode, 'handler');
$onlySpawnWhenMessageAvailable = $this->getAttributeValue(
$consumerNode,
'onlySpawnWhenMessageAvailable'
);
$result[$consumerName] = [
'name' => $consumerName,
'queue' => $this->getAttributeValue($consumerNode, 'queue', $consumerName),
'consumerInstance' => $this->getAttributeValue(
$consumerNode,
'consumerInstance',
self::$defaultInstance
),
'handlers' => $handler ? [$this->parseHandler($handler)] : [],
'connection' => $this->getAttributeValue(
$consumerNode,
'connection',
$this->defaultValueProvider->getConnection()
),
'maxMessages' => $this->getAttributeValue($consumerNode, 'maxMessages'),
'maxIdleTime' => $this->getAttributeValue($consumerNode, 'maxIdleTime'),
'sleep' => $this->getAttributeValue($consumerNode, 'sleep'),
'onlySpawnWhenMessageAvailable' =>
$onlySpawnWhenMessageAvailable === null ? null : boolval($onlySpawnWhenMessageAvailable)
];
}
return $result;
}
/**
* Get attribute value of the given node
*
* @param \DOMNode $node
* @param string $attributeName
* @param mixed $default
* @return string|null
*/
private function getAttributeValue(\DOMNode $node, $attributeName, $default = null)
{
$item = $node->attributes->getNamedItem($attributeName);
return $item ? $item->nodeValue : $default;
}
/**
* Parse service method callback to become compatible with handlers format.
*
* @param array $handler
* @return array
*/
private function parseHandler($handler)
{
$parseServiceMethod = $this->configParser->parseServiceMethod($handler);
return [
CommunicationConfig::HANDLER_TYPE => $parseServiceMethod[ConfigParser::TYPE_NAME],
CommunicationConfig::HANDLER_METHOD => $parseServiceMethod[ConfigParser::METHOD_NAME]
];
}
}