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<?php
namespace Elastica\Connection;
use Elastica\Client;
use Elastica\Connection;
use Elastica\Connection\Strategy\StrategyInterface;
use Exception;
/**
* Description of ConnectionPool.
*
* @author chabior
*/
class ConnectionPool
{
/**
* @var array|\Elastica\Connection[] Connections array
*/
protected $_connections;
/**
* @var \Elastica\Connection\Strategy\StrategyInterface Strategy for connection
*/
protected $_strategy;
/**
* @var callback Function called on connection fail
*/
protected $_callback;
/**
* @param array $connections
* @param \Elastica\Connection\Strategy\StrategyInterface $strategy
* @param callback $callback
*/
public function __construct(array $connections, StrategyInterface $strategy, $callback = null)
{
$this->_connections = $connections;
$this->_strategy = $strategy;
$this->_callback = $callback;
}
/**
* @param \Elastica\Connection $connection
*
* @return $this
*/
public function addConnection(Connection $connection)
{
$this->_connections[] = $connection;
return $this;
}
/**
* @param array|\Elastica\Connection[] $connections
*
* @return $this
*/
public function setConnections(array $connections)
{
$this->_connections = $connections;
return $this;
}
/**
* @return bool
*/
public function hasConnection()
{
foreach ($this->_connections as $connection) {
if ($connection->isEnabled()) {
return true;
}
}
return false;
}
/**
* @return array
*/
public function getConnections()
{
return $this->_connections;
}
/**
* @throws \Elastica\Exception\ClientException
*
* @return \Elastica\Connection
*/
public function getConnection()
{
return $this->_strategy->getConnection($this->getConnections());
}
/**
* @param \Elastica\Connection $connection
* @param \Exception $e
* @param Client $client
*/
public function onFail(Connection $connection, Exception $e, Client $client)
{
$connection->setEnabled(false);
if ($this->_callback) {
call_user_func($this->_callback, $connection, $e, $client);
}
}
/**
* @return \Elastica\Connection\Strategy\StrategyInterface
*/
public function getStrategy()
{
return $this->_strategy;
}
}
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