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<?php
namespace Elastica;
use Elastica\Cluster\Health;
use Elastica\Cluster\Settings;
use Elastica\Exception\NotImplementedException;
/**
* Cluster informations for elasticsearch.
*
* @author Nicolas Ruflin <spam@ruflin.com>
*
* @link https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster.html
*/
class Cluster
{
/**
* Client.
*
* @var \Elastica\Client Client object
*/
protected $_client = null;
/**
* Cluster state response.
*
* @var \Elastica\Response
*/
protected $_response;
/**
* Cluster state data.
*
* @var array
*/
protected $_data;
/**
* Creates a cluster object.
*
* @param \Elastica\Client $client Connection client object
*/
public function __construct(Client $client)
{
$this->_client = $client;
$this->refresh();
}
/**
* Refreshes all cluster information (state).
*/
public function refresh()
{
$path = '_cluster/state';
$this->_response = $this->_client->request($path, Request::GET);
$this->_data = $this->getResponse()->getData();
}
/**
* Returns the response object.
*
* @return \Elastica\Response Response object
*/
public function getResponse()
{
return $this->_response;
}
/**
* Return list of index names.
*
* @return array List of index names
*/
public function getIndexNames()
{
$metaData = $this->_data['metadata']['indices'];
$indices = array();
foreach ($metaData as $key => $value) {
$indices[] = $key;
}
return $indices;
}
/**
* Returns the full state of the cluster.
*
* @return array State array
*
* @link https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-state.html
*/
public function getState()
{
return $this->_data;
}
/**
* Returns a list of existing node names.
*
* @return array List of node names
*/
public function getNodeNames()
{
$data = $this->getState();
$nodeNames = array();
foreach ($data['nodes'] as $node) {
$nodeNames[] = $node['name'];
}
return $nodeNames;
}
/**
* Returns all nodes of the cluster.
*
* @return \Elastica\Node[]
*/
public function getNodes()
{
$nodes = array();
$data = $this->getState();
foreach ($data['nodes'] as $id => $name) {
$nodes[] = new Node($id, $this->getClient());
}
return $nodes;
}
/**
* Returns the client object.
*
* @return \Elastica\Client Client object
*/
public function getClient()
{
return $this->_client;
}
/**
* Returns the cluster information (not implemented yet).
*
* @link https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-nodes-info.html
*
* @param array $args Additional arguments
*
* @throws \Elastica\Exception\NotImplementedException
*/
public function getInfo(array $args)
{
throw new NotImplementedException('not implemented yet');
}
/**
* Return Cluster health.
*
* @link https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-health.html
*
* @return \Elastica\Cluster\Health
*/
public function getHealth()
{
return new Health($this->getClient());
}
/**
* Return Cluster settings.
*
* @return \Elastica\Cluster\Settings
*/
public function getSettings()
{
return new Settings($this->getClient());
}
/**
* Shuts down the complete cluster.
*
* @link https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-nodes-shutdown.html
*
* @param string $delay OPTIONAL Seconds to shutdown cluster after (default = 1s)
*
* @return \Elastica\Response
*/
public function shutdown($delay = '1s')
{
$path = '_shutdown?delay='.$delay;
return $this->_client->request($path, Request::POST);
}
}
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