Developer
<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\VarDumper\Caster;
use RdKafka\Conf;
use RdKafka\Exception as RdKafkaException;
use RdKafka\KafkaConsumer;
use RdKafka\Message;
use RdKafka\Metadata\Broker as BrokerMetadata;
use RdKafka\Metadata\Collection as CollectionMetadata;
use RdKafka\Metadata\Partition as PartitionMetadata;
use RdKafka\Metadata\Topic as TopicMetadata;
use RdKafka\Topic;
use RdKafka\TopicConf;
use RdKafka\TopicPartition;
use Symfony\Component\VarDumper\Cloner\Stub;
/**
* Casts RdKafka related classes to array representation.
*
* @author Romain Neutron <imprec@gmail.com>
*/
class RdKafkaCaster
{
public static function castKafkaConsumer(KafkaConsumer $c, array $a, Stub $stub, bool $isNested)
{
$prefix = Caster::PREFIX_VIRTUAL;
try {
$assignment = $c->getAssignment();
} catch (RdKafkaException $e) {
$assignment = [];
}
$a += [
$prefix.'subscription' => $c->getSubscription(),
$prefix.'assignment' => $assignment,
];
$a += self::extractMetadata($c);
return $a;
}
public static function castTopic(Topic $c, array $a, Stub $stub, bool $isNested)
{
$prefix = Caster::PREFIX_VIRTUAL;
$a += [
$prefix.'name' => $c->getName(),
];
return $a;
}
public static function castTopicPartition(TopicPartition $c, array $a)
{
$prefix = Caster::PREFIX_VIRTUAL;
$a += [
$prefix.'offset' => $c->getOffset(),
$prefix.'partition' => $c->getPartition(),
$prefix.'topic' => $c->getTopic(),
];
return $a;
}
public static function castMessage(Message $c, array $a, Stub $stub, bool $isNested)
{
$prefix = Caster::PREFIX_VIRTUAL;
$a += [
$prefix.'errstr' => $c->errstr(),
];
return $a;
}
public static function castConf(Conf $c, array $a, Stub $stub, bool $isNested)
{
$prefix = Caster::PREFIX_VIRTUAL;
foreach ($c->dump() as $key => $value) {
$a[$prefix.$key] = $value;
}
return $a;
}
public static function castTopicConf(TopicConf $c, array $a, Stub $stub, bool $isNested)
{
$prefix = Caster::PREFIX_VIRTUAL;
foreach ($c->dump() as $key => $value) {
$a[$prefix.$key] = $value;
}
return $a;
}
public static function castRdKafka(\RdKafka $c, array $a, Stub $stub, bool $isNested)
{
$prefix = Caster::PREFIX_VIRTUAL;
$a += [
$prefix.'out_q_len' => $c->getOutQLen(),
];
$a += self::extractMetadata($c);
return $a;
}
public static function castCollectionMetadata(CollectionMetadata $c, array $a, Stub $stub, bool $isNested)
{
$a += iterator_to_array($c);
return $a;
}
public static function castTopicMetadata(TopicMetadata $c, array $a, Stub $stub, bool $isNested)
{
$prefix = Caster::PREFIX_VIRTUAL;
$a += [
$prefix.'name' => $c->getTopic(),
$prefix.'partitions' => $c->getPartitions(),
];
return $a;
}
public static function castPartitionMetadata(PartitionMetadata $c, array $a, Stub $stub, bool $isNested)
{
$prefix = Caster::PREFIX_VIRTUAL;
$a += [
$prefix.'id' => $c->getId(),
$prefix.'err' => $c->getErr(),
$prefix.'leader' => $c->getLeader(),
];
return $a;
}
public static function castBrokerMetadata(BrokerMetadata $c, array $a, Stub $stub, bool $isNested)
{
$prefix = Caster::PREFIX_VIRTUAL;
$a += [
$prefix.'id' => $c->getId(),
$prefix.'host' => $c->getHost(),
$prefix.'port' => $c->getPort(),
];
return $a;
}
private static function extractMetadata(KafkaConsumer|\RdKafka $c)
{
$prefix = Caster::PREFIX_VIRTUAL;
try {
$m = $c->getMetadata(true, null, 500);
} catch (RdKafkaException $e) {
return [];
}
return [
$prefix.'orig_broker_id' => $m->getOrigBrokerId(),
$prefix.'orig_broker_name' => $m->getOrigBrokerName(),
$prefix.'brokers' => $m->getBrokers(),
$prefix.'topics' => $m->getTopics(),
];
}
}
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: