Viewing file:  ClosureCacheAdapter.php (1.84 KB) -rw-r--r--
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<?php
namespace Guzzle\Cache;
/**
* Cache adapter that defers to closures for implementation
*/
class ClosureCacheAdapter implements CacheAdapterInterface
{
/**
* @var array Mapping of method names to callables
*/
protected $callables;
/**
* The callables array is an array mapping the actions of the cache adapter to callables.
* - contains: Callable that accepts an $id and $options argument
* - delete: Callable that accepts an $id and $options argument
* - fetch: Callable that accepts an $id and $options argument
* - save: Callable that accepts an $id, $data, $lifeTime, and $options argument
*
* @param array $callables array of action names to callable
*
* @throws \InvalidArgumentException if the callable is not callable
*/
public function __construct(array $callables)
{
// Validate each key to ensure it exists and is callable
foreach (array('contains', 'delete', 'fetch', 'save') as $key) {
if (!array_key_exists($key, $callables) || !is_callable($callables[$key])) {
throw new \InvalidArgumentException("callables must contain a callable {$key} key");
}
}
$this->callables = $callables;
}
public function contains($id, array $options = null)
{
return call_user_func($this->callables['contains'], $id, $options);
}
public function delete($id, array $options = null)
{
return call_user_func($this->callables['delete'], $id, $options);
}
public function fetch($id, array $options = null)
{
return call_user_func($this->callables['fetch'], $id, $options);
}
public function save($id, $data, $lifeTime = false, array $options = null)
{
return call_user_func($this->callables['save'], $id, $data, $lifeTime, $options);
}
}
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