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<?php
namespace Bitrix\Main\Data\Configurator;
use Bitrix\Main\Application;
use Bitrix\Main\NotSupportedException;
class RedisConnectionConfigurator
{
/** @var array */
protected $config;
/** @var array */
protected $servers = [];
public function __construct($config)
{
if (!extension_loaded('redis'))
{
throw new NotSupportedException('redis extension is not loaded.');
}
$this->config = $config;
$this->addServers($this->getConfig());
}
protected function addServers($config)
{
$servers = $config['servers'] ?? [];
if (isset($config['host'], $config['port']))
{
array_unshift($servers, [
'host' => $config['host'],
'port' => $config['port'],
]);
}
foreach ($servers as $server)
{
$this->servers[] = [
'host' => $server['host'] ?? 'localhost',
'port' => $server['port'] ?? '11211',
];
}
return $this;
}
public function getConfig()
{
return $this->config;
}
/**
* @param \Redis|\RedisCluster $connection
*/
protected function configureConnection($connection): void
{
$config = $this->getConfig();
if ($connection instanceof \Redis)
{
$connection->setOption(\Redis::OPT_SERIALIZER, $config['serializer'] ?? \Redis::SERIALIZER_IGBINARY);
}
elseif ($connection instanceof \RedisCluster)
{
$connection->setOption(
\RedisCluster::OPT_SERIALIZER,
$config['serializer'] ?? \RedisCluster::SERIALIZER_IGBINARY
);
if (count($this->servers) > 1)
{
$connection->setOption(
\RedisCluster::OPT_SLAVE_FAILOVER,
$config['failover'] ?? \RedisCluster::FAILOVER_NONE
);
}
}
}
public function createConnection()
{
$config = $this->getConfig();
if (!$this->servers)
{
throw new NotSupportedException('Empty server list to redis connection.');
}
if (count($this->servers) === 1)
{
['host' => $host, 'port' => $port] = $this->servers[0];
$connection = new \Redis();
$result = $connection->pconnect($host, $port);
}
else
{
$connections = [];
foreach ($this->servers as $server)
{
$connections[] = $server['host'] . ':' . $server['port'];
}
$connection = new \RedisCluster(
null,
$connections,
$config['timeout'] ?? null,
$config['readTimeout'] ?? null,
$config['persistent'] ?? true
);
$result = true;
}
if ($result)
{
$this->configureConnection($connection);
}
else
{
$error = error_get_last();
if (isset($error["type"]) && $error["type"] === E_WARNING)
{
$exception = new \ErrorException($error['message'], 0, $error['type'], $error['file'], $error['line']);
$application = Application::getInstance();
$exceptionHandler = $application->getExceptionHandler();
$exceptionHandler->writeToLog($exception);
}
}
return $result? $connection : null;
}
}