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AbstractConnectionPool.php
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AbstractConnectionPool.php
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<?php
namespace Elasticsearch\ConnectionPool;
use Elasticsearch\Common\Exceptions\InvalidArgumentException;
use Elasticsearch\ConnectionPool\Selectors\SelectorInterface;
use Elasticsearch\Connections\Connection;
use Elasticsearch\Connections\ConnectionFactory;
/**
* Class AbstractConnectionPool
*
* @category Elasticsearch
* @package Elasticsearch\ConnectionPool
* @author Zachary Tong <zach@elastic.co>
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache2
* @link http://elastic.co
*/
abstract class AbstractConnectionPool implements ConnectionPoolInterface
{
/**
* Array of connections
*
* @var ConnectionInterface[]
*/
protected $connections;
/**
* Array of initial seed connections
*
* @var ConnectionInterface[]
*/
protected $seedConnections;
/**
* Selector object, used to select a connection on each request
*
* @var SelectorInterface
*/
protected $selector;
/** @var \Elasticsearch\Connections\ConnectionFactory */
protected $connectionFactory;
/**
* Constructor
*
* @param ConnectionInterface[] $connections The Connections to choose from
* @param SelectorInterface $selector A Selector instance to perform the selection logic for the available connections
* @param ConnectionFactory $factory ConnectionFactory instance
* @param array $connectionPoolParams
*/
public function __construct($connections, SelectorInterface $selector, ConnectionFactory $factory, $connectionPoolParams)
{
$paramList = array('connections', 'selector', 'connectionPoolParams');
foreach ($paramList as $param) {
if (isset($$param) === false) {
throw new InvalidArgumentException('`' . $param . '` parameter must not be null');
}
}
if (isset($connectionPoolParams['randomizeHosts']) === true
&& $connectionPoolParams['randomizeHosts'] === true) {
shuffle($connections);
}
$this->connections = $connections;
$this->seedConnections = $connections;
$this->selector = $selector;
$this->connectionPoolParams = $connectionPoolParams;
$this->connectionFactory = $factory;
}
/**
* @param bool $force
*
* @return Connection
*/
abstract public function nextConnection($force = false);
abstract public function scheduleCheck();
}