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<?php
// SPDX-FileCopyrightText: 2004-2023 Ryan Parman, Sam Sneddon, Ryan McCue
// SPDX-License-Identifier: BSD-3-Clause
declare(strict_types=1);
namespace SimplePie\Cache;
use Psr\SimpleCache\CacheInterface;
use Psr\SimpleCache\InvalidArgumentException;
use Throwable;
/**
* Caches data into a PSR-16 cache implementation
*
* @internal
*/
final class Psr16 implements DataCache
{
/**
* PSR-16 cache implementation
*
* @var CacheInterface
*/
private $cache;
/**
* PSR-16 cache implementation
*
* @param CacheInterface $cache
*/
public function __construct(CacheInterface $cache)
{
$this->cache = $cache;
}
/**
* Fetches a value from the cache.
*
* Equivalent to \Psr\SimpleCache\CacheInterface::get()
* <code>
* public function get(string $key, mixed $default = null): mixed;
* </code>
*
* @param string $key The unique key of this item in the cache.
* @param mixed $default Default value to return if the key does not exist.
*
* @return array|mixed The value of the item from the cache, or $default in case of cache miss.
*
* @throws InvalidArgumentException&Throwable
* MUST be thrown if the $key string is not a legal value.
*/
public function get_data(string $key, $default = null)
{
$data = $this->cache->get($key, $default);
if (!is_array($data) || $data === $default) {
return $default;
}
return $data;
}
/**
* Persists data in the cache, uniquely referenced by a key with an optional expiration TTL time.
*
* Equivalent to \Psr\SimpleCache\CacheInterface::set()
* <code>
* public function set(string $key, mixed $value, null|int|\DateInterval $ttl = null): bool;
* </code>
*
* @param string $key The key of the item to store.
* @param array<mixed> $value The value of the item to store, must be serializable.
* @param null|int $ttl Optional. The TTL value of this item. If no value is sent and
* the driver supports TTL then the library may set a default value
* for it or let the driver take care of that.
*
* @return bool True on success and false on failure.
*
* @throws InvalidArgumentException&Throwable
* MUST be thrown if the $key string is not a legal value.
*/
public function set_data(string $key, array $value, ?int $ttl = null): bool
{
return $this->cache->set($key, $value, $ttl);
}
/**
* Delete an item from the cache by its unique key.
*
* Equivalent to \Psr\SimpleCache\CacheInterface::delete()
* <code>
* public function delete(string $key): bool;
* </code>
*
* @param string $key The unique cache key of the item to delete.
*
* @return bool True if the item was successfully removed. False if there was an error.
*
* @throws InvalidArgumentException&Throwable
* MUST be thrown if the $key string is not a legal value.
*/
public function delete_data(string $key): bool
{
return $this->cache->delete($key);
}
}
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