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<?php
namespace SMW\Elastic\Indexer;
use SMW\Elastic\Connection\Client as ElasticClient;
use SMW\Elastic\QueryEngine\FieldMapper;
use SMWDITime as DITime;
use SMW\DIProperty;
use RuntimeException;
/**
* @license GNU GPL v2+
* @since 3.0
*
* @author mwjames
*/
class ReplicationStatus {
/**
* @var ElasticClient
*/
private $elasticClient;
/**
* @var FieldMapper
*/
private $fieldMapper;
/**
* @since 3.0
*
* @param ElasticClient $elasticClient
*/
public function __construct( ElasticClient $connection ) {
$this->connection = $connection;
$this->fieldMapper = new FieldMapper();
}
/**
* @since 3.0
*
* @param string $key
*
* @return string
* @throws RuntimeException
*/
public function get( $key ) {
if ( !is_callable( [ $this, $key ] ) ) {
throw new RuntimeException( "`$key` as accessor is unknown!" );
}
return $this->{$key}();
}
/**
* @since 3.0
*/
private function refresh_interval() {
$refresh_interval = null;
$settings = $this->connection->getSettings(
[
'index' => $this->connection->getIndexName( ElasticClient::TYPE_DATA )
]
);
foreach ( $settings as $key => $value ) {
if ( isset( $value['settings']['index']['refresh_interval'] ) ) {
$refresh_interval = $value['settings']['index']['refresh_interval'];
}
}
return $refresh_interval;
}
/**
* @since 3.0
*/
private function last_update() {
$pid = $this->fieldMapper->getPID( \SMWSql3SmwIds::$special_ids['_MDAT'] );
$field = $this->fieldMapper->getField( new DIProperty( '_MDAT' ) );
$params = $this->fieldMapper->exists( "$pid.$field" );
$body = [
'_source' => [ "$pid.$field", "subject" ],
'size' => 1,
'query' => $params,
'sort' => [ "$pid.$field" => [ 'order' => 'desc' ] ]
];
$params = [
'index' => $this->connection->getIndexName( ElasticClient::TYPE_DATA ),
'type' => ElasticClient::TYPE_DATA,
'body' => $body
];
list( $res, $errors ) = $this->connection->search( $params );
$time = null;
foreach ( $res as $result ) {
if ( !isset( $result['hits'] ) ) {
continue;
}
foreach ( $result['hits'] as $key => $value ) {
foreach ( $value as $key => $v ) {
if ( $key === '_source' ) {
$time = DITime::newFromJD( end( $v[$pid][$field] ) );
}
}
}
}
if ( $time !== null ) {
$time = $time->asDateTime()->format( 'Y-m-d H:i:s' );
} else {
$time = '0000-00-00 00:00:00';
}
return $time;
}
}
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