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<?php |
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namespace kalanis\kw_cache_psr\Adapters\PoolCache; |
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use kalanis\kw_cache\CacheException; |
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use kalanis\kw_cache\Interfaces\ICache; |
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use kalanis\kw_cache\Interfaces\IFormat; |
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use kalanis\kw_cache_psr\InvalidArgumentException; |
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use kalanis\kw_cache_psr\Traits\TCheckKey; |
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use Psr\Cache\CacheItemInterface; |
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use Psr\Cache\CacheItemPoolInterface; |
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use Traversable; |
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/** |
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* Class ItemPoolAdapter |
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* @package kalanis\kw_cache_psr\Adapters\PoolCache |
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* KwCache pool adapter for PSR Cache Interface |
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* |
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* OK, what kind of idiot has that brilliant idea about pool/item combo? Expire is known by storage, but not by item - volume. redis, memcache. |
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* The Hit over item dependent on expire is also dumb, because that information is on storage, not that item itself. |
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*/ |
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class KwPoolAdapter implements CacheItemPoolInterface |
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{ |
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use TCheckKey; |
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protected ICache $cache; |
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protected IFormat $format; |
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/** @var array<string, CacheItemInterface> */ |
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protected array $toSave = []; |
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/** @var array<string> Only known to the run, others will stay! */ |
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protected array $keys = []; |
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public function __construct(ICache $cache, IFormat $format) |
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{ |
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$this->cache = $cache; |
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$this->format = $format; |
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} |
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public function getItem($key) |
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{ |
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try { |
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$useKey = $this->checkKey($key); |
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$this->cache->init([$useKey]); |
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$data = new ItemAdapter($useKey); |
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$data->set($this->format->unpack($this->cache->get())); |
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return $data; |
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} catch (CacheException $ex) { |
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return new ItemAdapter($useKey); |
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} |
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} |
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/** |
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* @param array<string> $keys |
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* @throws InvalidArgumentException |
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* @-throws \Psr\Cache\InvalidArgumentException |
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* @return array<string, CacheItemInterface>|Traversable<string, CacheItemInterface> |
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*/ |
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public function getItems(array $keys = array()) |
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{ |
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$result = []; |
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foreach ($keys as $key) { |
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if ($this->hasItem($key)) { |
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$useKey = $this->checkKey($key); |
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$result[$useKey] = $this->getItem($useKey); |
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} |
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} |
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return $result; |
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} |
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public function hasItem($key) |
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{ |
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try { |
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$useKey = $this->checkKey($key); |
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$this->cache->init([$useKey]); |
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return $this->cache->exists(); |
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} catch (CacheException $ex) { |
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return false; |
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} |
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} |
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public function clear() |
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{ |
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// clear things which can be saved later |
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$this->toSave = []; |
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try { |
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return $this->deleteItems($this->keys); |
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} catch (\Psr\Cache\InvalidArgumentException $e) { |
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return false; |
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} |
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} |
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public function deleteItem($key) |
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{ |
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try { |
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$useKey = $this->checkKey($key); |
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$this->cache->init([$useKey]); |
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$this->cache->clear(); |
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unset($this->keys[$useKey]); |
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return true; |
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} catch (CacheException $ex) { |
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return false; |
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} |
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} |
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public function deleteItems(array $keys) |
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{ |
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$result = true; |
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foreach ($keys as $key) { |
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$result = $result && $this->deleteItem($key); |
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} |
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return $result; |
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} |
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public function save(CacheItemInterface $item) |
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{ |
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try { |
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$useKey = $this->checkKey($item->getKey()); |
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$this->keys[$useKey] = $useKey; |
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$this->cache->init([$useKey]); |
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return $this->cache->set(strval($this->format->pack($item->get()))); |
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} catch (CacheException $ex) { |
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return false; |
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} catch (InvalidArgumentException $ex) { |
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return false; |
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} |
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} |
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public function saveDeferred(CacheItemInterface $item) |
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{ |
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try { |
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$this->toSave[$this->checkKey($item->getKey())] = $item; |
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return true; |
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} catch (InvalidArgumentException $ex) { |
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return false; |
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} |
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} |
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public function commit() |
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{ |
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$result = true; |
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foreach ($this->toSave as $item) { |
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$result = $result && $this->save($item); |
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} |
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return $result; |
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} |
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} |
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alex-kalanis /
kw_cache_psr
