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Rename *CacheDriver to *Cache because they don't act as driver anymore

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Philipp Holzer 2019-08-04 10:26:53 +02:00
parent d56bd28a07
commit 86bf2ee45a
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GPG key ID: D8365C3D36B77D90
38 changed files with 152 additions and 144 deletions
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195
src/Core/Cache/RedisCacheDriver.php
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@ -1,195 +0,0 @@
<?php
namespace Friendica\Core\Cache;
use Exception;
use Friendica\Core\Cache;
use Friendica\Core\Config\Configuration;
use Redis;
/**
* Redis Cache Driver. This driver is based on Memcache driver
*
* @author Hypolite Petovan <hypolite@mrpetovan.com>
* @author Roland Haeder <roland@mxchange.org>
*/
class RedisCacheDriver extends AbstractCacheDriver implements IMemoryCacheDriver
{
/**
* @var Redis
*/
private $redis;
/**
* @throws Exception
*/
public function __construct(string $hostname, Configuration $config)
{
if (!class_exists('Redis', false)) {
throw new Exception('Redis class isn\'t available');
}
parent::__construct($hostname);
$this->redis = new Redis();
$redis_host = $config->get('system', 'redis_host');
$redis_port = $config->get('system', 'redis_port');
$redis_pw = $config->get('system', 'redis_password');
$redis_db = $config->get('system', 'redis_db', 0);
if (!$this->redis->connect($redis_host, $redis_port)) {
throw new Exception('Expected Redis server at ' . $redis_host . ':' . $redis_port . ' isn\'t available');
}
if (isset($redis_pw) && !$this->redis->auth($redis_pw)) {
throw new Exception('Cannot authenticate redis server at ' . $redis_host . ':' . $redis_port);
}
if ($redis_db !== 0 && !$this->redis->select($redis_db)) {
throw new Exception('Cannot switch to redis db ' . $redis_db . ' at ' . $redis_host . ':' . $redis_port);
}
}
/**
* (@inheritdoc)
*/
public function getAllKeys($prefix = null)
{
if (empty($prefix)) {
$search = '*';
} else {
$search = $prefix . '*';
}
$list = $this->redis->keys($this->getCacheKey($search));
return $this->getOriginalKeys($list);
}
/**
* (@inheritdoc)
*/
public function get($key)
{
$return = null;
$cachekey = $this->getCacheKey($key);
$cached = $this->redis->get($cachekey);
if ($cached === false && !$this->redis->exists($cachekey)) {
return null;
}
$value = unserialize($cached);
// Only return a value if the serialized value is valid.
// We also check if the db entry is a serialized
// boolean 'false' value (which we want to return).
if ($cached === serialize(false) || $value !== false) {
$return = $value;
}
return $return;
}
/**
* (@inheritdoc)
*/
public function set($key, $value, $ttl = Cache::FIVE_MINUTES)
{
$cachekey = $this->getCacheKey($key);
$cached = serialize($value);
if ($ttl > 0) {
return $this->redis->setex(
$cachekey,
$ttl,
$cached
);
} else {
return $this->redis->set(
$cachekey,
$cached
);
}
}
/**
* (@inheritdoc)
*/
public function delete($key)
{
$cachekey = $this->getCacheKey($key);
return ($this->redis->delete($cachekey) > 0);
}
/**
* (@inheritdoc)
*/
public function clear($outdated = true)
{
if ($outdated) {
return true;
} else {
return $this->redis->flushAll();
}
}
/**
* (@inheritdoc)
*/
public function add($key, $value, $ttl = Cache::FIVE_MINUTES)
{
$cachekey = $this->getCacheKey($key);
$cached = serialize($value);
return $this->redis->setnx($cachekey, $cached);
}
/**
* (@inheritdoc)
*/
public function compareSet($key, $oldValue, $newValue, $ttl = Cache::FIVE_MINUTES)
{
$cachekey = $this->getCacheKey($key);
$newCached = serialize($newValue);
$this->redis->watch($cachekey);
// If the old value isn't what we expected, somebody else changed the key meanwhile
if ($this->get($key) === $oldValue) {
if ($ttl > 0) {
$result = $this->redis->multi()
->setex($cachekey, $ttl, $newCached)
->exec();
} else {
$result = $this->redis->multi()
->set($cachekey, $newCached)
->exec();
}
return $result !== false;
}
$this->redis->unwatch();
return false;
}
/**
* (@inheritdoc)
*/
public function compareDelete($key, $value)
{
$cachekey = $this->getCacheKey($key);
$this->redis->watch($cachekey);
// If the old value isn't what we expected, somebody else changed the key meanwhile
if ($this->get($key) === $value) {
$result = $this->redis->multi()
->del($cachekey)
->exec();
return $result !== false;
}
$this->redis->unwatch();
return false;
}
}