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<?php
namespace Apptus\Util\Cache;

/**
 * A class that handle prefixing all keys for another StateCache instance.
 *
 * Will forward all methods to the given StateCache with all keys prefixed with the given prefix.
 *
 * Can be used to avoid key conflicts if the underlying cache is used for more than one thing.
 */
class PrefixStateCache implements StateCache {
    private $prefix;
    private $stateCache;

    /**
     * Construct a new PrefixStateCache.
     *
     * @param string
     * @param StateCache
     */
    public function __construct($prefix, StateCache $stateCache) {
        $this->prefix = (string) $prefix;
        $this->stateCache = $stateCache;
    }

    public function add($key, $value, $expire) {
        return $this->stateCache->add($this->prefix . $key, $value, $expire);
    }

    public function delete($key) {
        return $this->stateCache->delete($this->prefix . $key);
    }

    public function get($key) {
        return $this->stateCache->get($this->prefix . $key);
    }

    public function getMulti($keys) {
        $prefixedKeys = array ();
        foreach ($keys as $key) {
            $prefixedKeys[] = $this->prefix . $key;
        }
        $prefixedResult = $this->stateCache->getMulti($prefixedKeys);
        $prefixLength = strlen($this->prefix);
        $result = array ();
        foreach ($prefixedResult as $prefixedKey => $value) {
            $result[substr($prefixedKey, $prefixLength)] = $value;
        }
        return $result;
    }

    public function replace($key, $value, $expire) {
        return $this->stateCache->replace($this->prefix . $key, $value, $expire);
    }

    public function set($key, $value, $expire) {
        return $this->stateCache->set($this->prefix . $key, $value, $expire);
    }

    public function setMulti($items, $expire) {
        $prefixedItems = array ();
        foreach ($items as $key => $value) {
            $prefixedItems[$this->prefix . $key] = $value;
        }
        return $this->stateCache->setMulti($prefixedItems, $expire);
    }
}
Apptus ESales Connector PHP API documentation generated by ApiGen