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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Robin Appelman <robin@icewind.nl>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC;
class RedisFactory {
/** @var \Redis */
private $instance;
/** @var SystemConfig */
private $config;
/**
* RedisFactory constructor.
*
* @param SystemConfig $config
*/
public function __construct(SystemConfig $config) {
$this->config = $config;
}
private function create() {
if ($config = $this->config->getValue('redis.cluster', [])) {
if (!class_exists('RedisCluster')) {
throw new \Exception('Redis Cluster support is not available');
}
// cluster config
if (isset($config['timeout'])) {
$timeout = $config['timeout'];
} else {
$timeout = null;
}
if (isset($config['read_timeout'])) {
$readTimeout = $config['read_timeout'];
} else {
$readTimeout = null;
}
$this->instance = new \RedisCluster(null, $config['seeds'], $timeout, $readTimeout);
if (isset($config['failover_mode'])) {
$this->instance->setOption(\RedisCluster::OPT_SLAVE_FAILOVER, $config['failover_mode']);
}
} else {
$this->instance = new \Redis();
$config = $this->config->getValue('redis', []);
if (isset($config['host'])) {
$host = $config['host'];
} else {
$host = '127.0.0.1';
}
if (isset($config['port'])) {
$port = $config['port'];
} else {
$port = 6379;
}
if (isset($config['timeout'])) {
$timeout = $config['timeout'];
} else {
$timeout = 0.0; // unlimited
}
$this->instance->connect($host, $port, $timeout);
if (isset($config['password']) && $config['password'] !== '') {
$this->instance->auth($config['password']);
}
if (isset($config['dbindex'])) {
$this->instance->select($config['dbindex']);
}
}
}
public function getInstance() {
if (!$this->isAvailable()) {
throw new \Exception('Redis support is not available');
}
if (!$this->instance instanceof \Redis) {
$this->create();
}
return $this->instance;
}
public function isAvailable() {
return extension_loaded('redis')
&& version_compare(phpversion('redis'), '2.2.5', '>=');
}
}
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