1: <?php
2:
3: declare(strict_types=1);
4:
5: /**
6: * Copyright OpenSearch Contributors
7: * SPDX-License-Identifier: Apache-2.0
8: *
9: * OpenSearch PHP client
10: *
11: * @link https://github.com/opensearch-project/opensearch-php/
12: * @copyright Copyright (c) Elasticsearch B.V (https://www.elastic.co)
13: * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
14: * @license https://www.gnu.org/licenses/lgpl-2.1.html GNU Lesser General Public License, Version 2.1
15: *
16: * Licensed to Elasticsearch B.V under one or more agreements.
17: * Elasticsearch B.V licenses this file to you under the Apache 2.0 License or
18: * the GNU Lesser General Public License, Version 2.1, at your option.
19: * See the LICENSE file in the project root for more information.
20: */
21:
22: namespace OpenSearch\ConnectionPool;
23:
24: use OpenSearch\Common\Exceptions\NoNodesAvailableException;
25: use OpenSearch\ConnectionPool\Selectors\SelectorInterface;
26: use OpenSearch\Connections\Connection;
27: use OpenSearch\Connections\ConnectionInterface;
28: use OpenSearch\Connections\ConnectionFactoryInterface;
29:
30: class StaticNoPingConnectionPool extends AbstractConnectionPool implements ConnectionPoolInterface
31: {
32: /**
33: * @var int
34: */
35: private $pingTimeout = 60;
36:
37: /**
38: * @var int
39: */
40: private $maxPingTimeout = 3600;
41:
42: /**
43: * @param ConnectionInterface[] $connections
44: * @param array<string, mixed> $connectionPoolParams
45: */
46: public function __construct($connections, SelectorInterface $selector, ConnectionFactoryInterface $factory, $connectionPoolParams)
47: {
48: parent::__construct($connections, $selector, $factory, $connectionPoolParams);
49: }
50:
51: public function nextConnection(bool $force = false): ConnectionInterface
52: {
53: $total = count($this->connections);
54: while ($total--) {
55: /**
56: * @var Connection $connection
57: */
58: $connection = $this->selector->select($this->connections);
59: if ($connection->isAlive() === true) {
60: return $connection;
61: }
62:
63: if ($this->readyToRevive($connection) === true) {
64: return $connection;
65: }
66: }
67:
68: throw new NoNodesAvailableException("No alive nodes found in your cluster");
69: }
70:
71: public function scheduleCheck(): void
72: {
73: }
74:
75: private function readyToRevive(Connection $connection): bool
76: {
77: $timeout = min(
78: $this->pingTimeout * pow(2, $connection->getPingFailures()),
79: $this->maxPingTimeout
80: );
81:
82: if ($connection->getLastPing() + $timeout < time()) {
83: return true;
84: } else {
85: return false;
86: }
87: }
88: }
89: