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<?php
namespace Elastica\Node;
use Elastica\Node as BaseNode;
use Elastica\Request;
/**
* Elastica cluster node object.
*
* @author Nicolas Ruflin <spam@ruflin.com>
*
* @link http://www.elastic.co/guide/en/elasticsearch/reference/current/indices-status.html
*/
class Info
{
/**
* Response.
*
* @var \Elastica\Response Response object
*/
protected $_response = null;
/**
* Stats data.
*
* @var array stats data
*/
protected $_data = array();
/**
* Node.
*
* @var \Elastica\Node Node object
*/
protected $_node = null;
/**
* Query parameters.
*
* @var array
*/
protected $_params = array();
/**
* Create new info object for node.
*
* @param \Elastica\Node $node Node object
* @param array $params List of params to return. Can be: settings, os, process, jvm, thread_pool, network, transport, http
*/
public function __construct(BaseNode $node, array $params = array())
{
$this->_node = $node;
$this->refresh($params);
}
/**
* Returns the entry in the data array based on the params.
* Several params possible.
*
* Example 1: get('os', 'mem', 'total') returns total memory of the system the
* node is running on
* Example 2: get('os', 'mem') returns an array with all mem infos
*
* @return mixed Data array entry or null if not found
*/
public function get()
{
$data = $this->getData();
foreach (func_get_args() as $arg) {
if (isset($data[$arg])) {
$data = $data[$arg];
} else {
return;
}
}
return $data;
}
/**
* Return port of the node.
*
* @return string Returns Node port
*/
public function getPort()
{
// Returns string in format: inet[/192.168.1.115:9201]
$data = $this->get('http_address');
$data = substr($data, 6, strlen($data) - 7);
$data = explode(':', $data);
return $data[1];
}
/**
* Return IP of the node.
*
* @return string Returns Node ip address
*/
public function getIp()
{
// Returns string in format: inet[/192.168.1.115:9201]
$data = $this->get('http_address');
$data = substr($data, 6, strlen($data) - 7);
$data = explode(':', $data);
return $data[0];
}
/**
* Return data regarding plugins installed on this node.
*
* @return array plugin data
*
* @link http://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-nodes-info.html
*/
public function getPlugins()
{
if (!in_array('plugins', $this->_params)) {
//Plugin data was not retrieved when refresh() was called last. Get it now.
$this->_params[] = 'plugins';
$this->refresh($this->_params);
}
return $this->get('plugins');
}
/**
* Check if the given plugin is installed on this node.
*
* @param string $name plugin name
*
* @return bool true if the plugin is installed, false otherwise
*/
public function hasPlugin($name)
{
foreach ($this->getPlugins() as $plugin) {
if ($plugin['name'] == $name) {
return true;
}
}
return false;
}
/**
* Return all info data.
*
* @return array Data array
*/
public function getData()
{
return $this->_data;
}
/**
* Return node object.
*
* @return \Elastica\Node Node object
*/
public function getNode()
{
return $this->_node;
}
/**
* @return string Unique node id
*/
public function getId()
{
return $this->_id;
}
/**
* @return string Node name
*/
public function getName()
{
return $this->_data['name'];
}
/**
* Returns response object.
*
* @return \Elastica\Response Response object
*/
public function getResponse()
{
return $this->_response;
}
/**
* Reloads all nodes information. Has to be called if informations changed.
*
* @param array $params Params to return (default none). Possible options: settings, os, process, jvm, thread_pool, network, transport, http, plugin
*
* @return \Elastica\Response Response object
*/
public function refresh(array $params = array())
{
$this->_params = $params;
$path = '_nodes/'.$this->getNode()->getId();
if (!empty($params)) {
$path .= '?';
foreach ($params as $param) {
$path .= $param.'=true&';
}
}
$this->_response = $this->getNode()->getClient()->request($path, Request::GET);
$data = $this->getResponse()->getData();
$this->_data = reset($data['nodes']);
$this->_id = key($data['nodes']);
$this->getNode()->setId($this->getId());
}
}
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