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<?php
namespace Elastica\Cluster;
use Elastica\Client;
use Elastica\Cluster\Health\Index;
use Elastica\Request;
/**
* Elastic cluster health.
*
* @author Ray Ward <ray.ward@bigcommerce.com>
*
* @link http://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-health.html
*/
class Health
{
/**
* @var \Elastica\Client Client object.
*/
protected $_client = null;
/**
* @var array The cluster health data.
*/
protected $_data = null;
/**
* @param \Elastica\Client $client The Elastica client.
*/
public function __construct(Client $client)
{
$this->_client = $client;
$this->refresh();
}
/**
* Retrieves the health data from the cluster.
*
* @return array
*/
protected function _retrieveHealthData()
{
$path = '_cluster/health?level=shards';
$response = $this->_client->request($path, Request::GET);
return $response->getData();
}
/**
* Gets the health data.
*
* @return array
*/
public function getData()
{
return $this->_data;
}
/**
* Refreshes the health data for the cluster.
*
* @return $this
*/
public function refresh()
{
$this->_data = $this->_retrieveHealthData();
return $this;
}
/**
* Gets the name of the cluster.
*
* @return string
*/
public function getClusterName()
{
return $this->_data['cluster_name'];
}
/**
* Gets the status of the cluster.
*
* @return string green, yellow or red.
*/
public function getStatus()
{
return $this->_data['status'];
}
/**
* TODO determine the purpose of this.
*
* @return bool
*/
public function getTimedOut()
{
return $this->_data['timed_out'];
}
/**
* Gets the number of nodes in the cluster.
*
* @return int
*/
public function getNumberOfNodes()
{
return $this->_data['number_of_nodes'];
}
/**
* Gets the number of data nodes in the cluster.
*
* @return int
*/
public function getNumberOfDataNodes()
{
return $this->_data['number_of_data_nodes'];
}
/**
* Gets the number of active primary shards.
*
* @return int
*/
public function getActivePrimaryShards()
{
return $this->_data['active_primary_shards'];
}
/**
* Gets the number of active shards.
*
* @return int
*/
public function getActiveShards()
{
return $this->_data['active_shards'];
}
/**
* Gets the number of relocating shards.
*
* @return int
*/
public function getRelocatingShards()
{
return $this->_data['relocating_shards'];
}
/**
* Gets the number of initializing shards.
*
* @return int
*/
public function getInitializingShards()
{
return $this->_data['initializing_shards'];
}
/**
* Gets the number of unassigned shards.
*
* @return int
*/
public function getUnassignedShards()
{
return $this->_data['unassigned_shards'];
}
/**
* Gets the status of the indices.
*
* @return \Elastica\Cluster\Health\Index[]
*/
public function getIndices()
{
$indices = array();
foreach ($this->_data['indices'] as $indexName => $index) {
$indices[] = new Index($indexName, $index);
}
return $indices;
}
}
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