phpOMS/DataStorage/Cache/Connection/RedisCache.php
2022-11-09 22:55:39 +01:00

486 lines
12 KiB
PHP
Executable File

<?php
/**
* Karaka
*
* PHP Version 8.1
*
* @package phpOMS\DataStorage\Cache\Connection
* @copyright Dennis Eichhorn
* @license OMS License 1.0
* @version 1.0.0
* @link https://karaka.app
*/
declare(strict_types=1);
namespace phpOMS\DataStorage\Cache\Connection;
use phpOMS\DataStorage\Cache\CacheStatus;
use phpOMS\DataStorage\Cache\CacheType;
use phpOMS\DataStorage\Cache\Exception\InvalidConnectionConfigException;
use phpOMS\Stdlib\Base\Exception\InvalidEnumValue;
/**
* RedisCache class.
*
* @package phpOMS\DataStorage\Cache\Connection
* @license OMS License 1.0
* @link https://karaka.app
* @since 1.0.0
*/
final class RedisCache extends ConnectionAbstract
{
/**
* {@inheritdoc}
*/
protected string $type = CacheType::REDIS;
/**
* Delimiter for cache meta data
*
* @var string
* @since 1.0.0
*/
private const DELIM = '$';
/**
* Constructor
*
* @param array{db:int, host:string, port:int} $data Cache data
*
* @since 1.0.0
*/
public function __construct(array $data)
{
$this->con = new \Redis();
$this->connect($data);
}
/**
* Connect to cache
*
* @param null|array{db:int, host:string, port:int} $data Cache data
*
* @return void
*
* @since 1.0.0
*/
public function connect(array $data = null) : void
{
$this->dbdata = isset($data) ? $data : $this->dbdata;
if (!isset($this->dbdata['host'], $this->dbdata['port'], $this->dbdata['db'])) {
$this->status = CacheStatus::FAILURE;
throw new InvalidConnectionConfigException((string) \json_encode($this->dbdata));
}
$this->con->connect($this->dbdata['host'], $this->dbdata['port']);
try {
$this->con->ping();
} catch (\Throwable $e) {
$this->status = CacheStatus::FAILURE;
return;
}
$this->con->setOption(\Redis::OPT_SERIALIZER, (string) \Redis::SERIALIZER_NONE);
$this->con->setOption(\Redis::OPT_SCAN, (string) \Redis::SCAN_NORETRY);
$this->con->select($this->dbdata['db']);
$this->status = CacheStatus::OK;
}
/**
* {@inheritdoc}
*/
public function close() : void
{
if ($this->con !== null) {
$this->con->close();
}
parent::close();
}
/**
* {@inheritdoc}
*/
public function set(int | string $key, mixed $value, int $expire = -1) : void
{
if ($this->status !== CacheStatus::OK) {
return;
}
if ($expire > 0) {
$this->con->setEx((string) $key, $expire, $this->build($value));
return;
}
$this->con->set((string) $key, $this->build($value));
}
/**
* {@inheritdoc}
*/
public function add(int | string $key, mixed $value, int $expire = -1) : bool
{
if ($this->status !== CacheStatus::OK) {
return false;
}
if ($expire > 0) {
return $this->con->setNx((string) $key, $this->build($value), $expire);
}
return $this->con->setNx((string) $key, $this->build($value));
}
/**
* {@inheritdoc}
*/
public function get(int | string $key, int $expire = -1) : mixed
{
if ($this->status !== CacheStatus::OK || $this->con->exists((string) $key) < 1) {
return null;
}
$result = $this->con->get((string) $key);
if (\is_string($result) && ($result[0] ?? null) === self::DELIM) {
$result = \substr($result, 1);
$type = (int) $result[0];
$start = (int) \strpos($result, self::DELIM);
$result = $this->reverseValue($type, $result, $start);
}
return $result;
}
/**
* {@inheritdoc}
*/
public function delete(int | string $key, int $expire = -1) : bool
{
if ($this->status !== CacheStatus::OK) {
return false;
}
$this->con->del((string) $key);
return true;
}
/**
* {@inheritdoc}
*/
public function exists(int | string $key, int $expire = -1) : bool
{
if ($this->status !== CacheStatus::OK) {
return false;
}
return $this->con->exists((string) $key) > 0;
}
/**
* {@inheritdoc}
*/
public function increment(int | string $key, int $value = 1) : bool
{
if ($this->status !== CacheStatus::OK
|| !$this->exists((string) $key)
) {
return false;
}
$this->con->incrBy((string) $key, $value);
return true;
}
/**
* {@inheritdoc}
*/
public function decrement(int | string $key, int $value = 1) : bool
{
if ($this->status !== CacheStatus::OK
|| !$this->exists((string) $key)
) {
return false;
}
$this->con->decrBy((string) $key, $value);
return true;
}
/**
* {@inheritdoc}
*/
public function rename(int | string $old, int | string $new, int $expire = -1) : bool
{
if ($this->status !== CacheStatus::OK) {
return false;
}
$this->con->rename((string) $old, (string) $new);
if ($expire > 0) {
$this->con->expire((string) $new, $expire);
}
return true;
}
/**
* {@inheritdoc}
*/
public function getLike(string $pattern, int $expire = -1) : array
{
if ($this->status !== CacheStatus::OK) {
return [];
}
$keys = $this->con->keys('*');
$values = [];
foreach ($keys as $key) {
if (\preg_match('/' . $pattern . '/', $key) === 1) {
$result = $this->con->get((string) $key);
if (\is_string($result) && ($result[0] ?? null) === self::DELIM) {
$result = \substr($result, 1);
$type = (int) $result[0];
$start = (int) \strpos($result, self::DELIM);
$result = $this->reverseValue($type, $result, $start);
}
$values[] = $result;
}
}
return $values;
}
/**
* {@inheritdoc}
*/
public function deleteLike(string $pattern, int $expire = -1) : bool
{
if ($this->status !== CacheStatus::OK) {
return false;
}
$keys = $this->con->keys('*');
foreach ($keys as $key) {
if (\preg_match('/' . $pattern . '/', $key) === 1) {
$this->con->del($key);
}
}
return true;
}
/**
* {@inheritdoc}
*/
public function updateExpire(int | string $key, int $expire = -1) : bool
{
if ($this->status !== CacheStatus::OK) {
return false;
}
if ($expire > 0) {
$this->con->expire((string) $key, $expire);
}
return true;
}
/**
* {@inheritdoc}
*/
public function flush(int $expire = 0) : bool
{
if ($this->status !== CacheStatus::OK) {
return false;
}
return $this->flushDb();
}
/**
* {@inheritdoc}
*/
public function flushAll() : bool
{
if ($this->status !== CacheStatus::OK) {
return false;
}
$this->con->flushDb();
return true;
}
/**
* {@inheritdoc}
*/
public function replace(int | string $key, mixed $value, int $expire = -1) : bool
{
if ($this->status !== CacheStatus::OK) {
return false;
}
if ($this->con->exists((string) $key) > 0) {
$this->set((string) $key, $value, $expire);
return true;
}
return false;
}
/**
* {@inheritdoc}
*/
public function stats() : array
{
if ($this->status !== CacheStatus::OK) {
return [];
}
$info = $this->con->info();
$stats = [];
$stats['status'] = $this->status;
$stats['count'] = $this->con->dbSize();
$stats['size'] = $info['used_memory'];
return $stats;
}
/**
* {@inheritdoc}
*/
public function getThreshold() : int
{
return 0;
}
/**
* Destructor.
*
* @since 1.0.0
*/
public function __destruct()
{
$this->close();
}
/**
* Build value
*
* @param mixed $value Data to cache
*
* @return mixed
*
* @since 1.0.0
*/
private function build(mixed $value) : mixed
{
$type = $this->dataType($value);
$raw = $this->cachify($value, $type);
return \is_string($raw)
&& ($type !== CacheValueType::_INT && $type !== CacheValueType::_FLOAT)
? self::DELIM . $type . self::DELIM . $raw
: $raw;
}
/**
* Create string representation of data for storage
*
* @param mixed $value Value of the data
* @param int $type Type of the cache data
*
* @return mixed
*
* @throws InvalidEnumValue This exception is thrown if an unsupported cache value type is used
*
* @since 1.0.0
*/
private function cachify(mixed $value, int $type) : mixed
{
if ($type === CacheValueType::_INT || $type === CacheValueType::_STRING || $type === CacheValueType::_BOOL) {
return (string) $value;
} elseif ($type === CacheValueType::_FLOAT) {
return \rtrim(\rtrim(\number_format($value, 5, '.', ''), '0'), '.');
} elseif ($type === CacheValueType::_ARRAY) {
return (string) \json_encode($value);
} elseif ($type === CacheValueType::_SERIALIZABLE) {
return \get_class($value) . self::DELIM . $value->serialize();
} elseif ($type === CacheValueType::_JSONSERIALIZABLE) {
return \get_class($value) . self::DELIM . ((string) \json_encode($value->jsonSerialize()));
} elseif ($type === CacheValueType::_NULL) {
return '';
}
throw new InvalidEnumValue($type);
}
/**
* Parse cached value
*
* @param int $type Cached value type
* @param mixed $raw Cached value
* @param int $start Value start position
*
* @return mixed
*
* @since 1.0.0
*/
private function reverseValue(int $type, mixed $raw, int $start) : mixed
{
switch ($type) {
case CacheValueType::_INT:
return (int) \substr($raw, $start + 1);
case CacheValueType::_FLOAT:
return (float) \substr($raw, $start + 1);
case CacheValueType::_BOOL:
return (bool) \substr($raw, $start + 1);
case CacheValueType::_STRING:
return \substr($raw, $start + 1);
case CacheValueType::_ARRAY:
$array = \substr($raw, $start + 1);
return \json_decode($array === false ? '[]' : $array, true);
case CacheValueType::_NULL:
return null;
case CacheValueType::_JSONSERIALIZABLE:
$namespaceStart = (int) \strpos($raw, self::DELIM, $start);
$namespaceEnd = (int) \strpos($raw, self::DELIM, $namespaceStart + 1);
$namespace = \substr($raw, $namespaceStart + 1, $namespaceEnd - $namespaceStart - 1);
if ($namespace === false) {
return null; // @codeCoverageIgnore
}
return new $namespace();
case CacheValueType::_SERIALIZABLE:
$namespaceStart = (int) \strpos($raw, self::DELIM, $start);
$namespaceEnd = (int) \strpos($raw, self::DELIM, $namespaceStart + 1);
$namespace = \substr($raw, $namespaceStart + 1, $namespaceEnd - $namespaceStart - 1);
if ($namespace === false) {
return null; // @codeCoverageIgnore
}
$obj = new $namespace();
$obj->unserialize(\substr($raw, $namespaceEnd + 1));
return $obj;
default:
return null; // @codeCoverageIgnore
}
}
}