Pridan CacheAdapter pro pouziti nette/caching jako backendu pro CacheDecorator

Author: xificurk

composer.json

@@ -45,7 +45,8 @@
 		"tracy/tracy": "~2.1@dev"
 	},
     "suggest": {
-        "tracy/tracy": "to enable skautis panel for Tracy debug bar."
+        "tracy/tracy": "to enable skautis panel for Tracy debug bar.",
+        "nette/caching": "to use Nette caching backend in CacheDecorator."
     },
 	"autoload": {
 		"psr-4": {

src/CacheAdapter.php

@@ -0,0 +1,134 @@
+<?php
+
+namespace Skautis\Nette;
+
+use Nette;
+use Nette\Caching\Cache;
+use Nette\Caching\IStorage;
+use Skautis\Wsdl\Decorator\Cache\CacheInterface;
+
+
+if (!class_exists('Nette\Utils\DateTime') && class_exists('Nette\DateTime')) {
+	// BC with Nette 2.1
+	class_alias('Nette\DateTime', 'Nette\Utils\DateTime');
+}
+
+
+/**
+ * Nette cache adapter for Skautis library
+ */
+class CacheAdapter implements CacheInterface
+{
+
+	/** @var IStorage */
+	private $storage;
+
+	/** @var string */
+	private $namespace;
+
+	/** @var string|int|\DateTime */
+	private $expiration;
+
+
+	/**
+	 * @param IStorage $storage
+	 * @param string|null $namespace
+	 */
+	public function __construct(IStorage $storage, $namespace = NULL)
+	{
+		$this->storage = $storage;
+		$this->namespace = $namespace . Cache::NAMESPACE_SEPARATOR;
+	}
+
+
+	/**
+	 * Returns cache storage.
+	 * @return IStorage
+	 */
+	public function getStorage()
+	{
+		return $this->storage;
+	}
+
+
+	/**
+	 * Returns cache namespace.
+	 * @return string
+	 */
+	public function getNamespace()
+	{
+		return (string) substr($this->namespace, 0, -1);
+	}
+
+
+	/**
+	 * @param \DateTime|int|string $expiration
+	 * @return self
+	 */
+	public function setExpiration($expiration)
+	{
+		$this->expiration = $expiration;
+		return $this;
+	}
+
+
+	/**
+	 * @inheritdoc
+	 */
+	public function get($key)
+	{
+		return $this->storage->read($this->generateKey($key));
+	}
+
+
+	/**
+	 * @inheritdoc
+	 */
+	public function set($key, $data)
+	{
+		$key = $this->generateKey($key);
+
+		if ($data === NULL) {
+			$this->storage->remove($key);
+		} else {
+			$this->storage->write($key, $data, $this->getDependencies());
+		}
+	}
+
+
+	/**
+	 * @return array
+	 */
+	private function getDependencies()
+	{
+		$dependencies = array();
+
+		if (isset($this->expiration)) {
+			$dependencies[Cache::EXPIRATION] = Nette\Utils\DateTime::from($this->expiration)->format('U') - time();
+		}
+
+		return $dependencies;
+	}
+
+
+	/**
+	 * Generates internal cache key.
+	 *
+	 * @param string $key
+	 * @return string
+	 */
+	protected function generateKey($key)
+	{
+		return $this->namespace . md5(is_scalar($key) ? $key : serialize($key));
+	}
+
+
+	/**
+	 * Clears all cached items.
+	 */
+	public function clean()
+	{
+		$this->storage->clean(array(Cache::ALL => TRUE));
+	}
+
+}

tests/SkautisNette/CacheAdapter.phpt

@@ -0,0 +1,27 @@
+<?php
+
+use Tester\Assert;
+use Nette\Http;
+use Skautis\Nette\CacheAdapter;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+$storage = new \Nette\Caching\Storages\FileStorage(TEMP_DIR);
+$cache = new CacheAdapter($storage, 'skautis');
+
+Assert::equal('skautis', $cache->getNamespace());
+Assert::equal($storage, $cache->getStorage());
+
+Assert::equal(NULL, $cache->get('unknown'));
+
+$cache->set('key', 'value');
+Assert::equal('value', $cache->get('key'));
+
+$cache->clean();
+Assert::equal(NULL, $cache->get('key'));
+
+$cache->setExpiration('1 second');
+$cache->set('key', 'value');
+sleep(2);
+Assert::equal(NULL, $cache->get('key'));