Merge pull request #13 from Mattin/memcached_support

Added support for memcached caching

README.md

@@ -121,6 +121,22 @@ return [
 ];
 ```
 
+### Enable Memcached cache
+
+If you're using Memcached, you should have only one project per memcached instance.
+
+```php
+return [
+    'phpdi-zf2' => [
+        'cache' => [
+            'adapter' => 'memcached',
+            'host' => 'localhost', // default is localhost
+            'port' => 11211, // default is 11211
+        ],
+    ]
+];
+```
+
 ## Console commands
 
 ### Clear definition cache

src/DI/ZendFramework2/Service/CacheFactory.php

@@ -8,6 +8,7 @@
 use Doctrine\Common\Cache\Cache;
 use Doctrine\Common\Cache\CacheProvider;
 use Doctrine\Common\Cache\FilesystemCache;
+use Doctrine\Common\Cache\MemcachedCache;
 use Doctrine\Common\Cache\RedisCache;
 use Zend\ServiceManager\FactoryInterface;
 use Zend\ServiceManager\ServiceLocatorInterface;
@@ -60,6 +61,10 @@ public function createService(ServiceLocatorInterface $serviceLocator)
                 $cache = $this->getRedisCache($config);
                 break;
 
+            case 'memcached':
+                $cache = $this->getMemcachedCache($config);
+                break;
+
             default:
                 throw ConfigException::newUnsupportedCacheAdapterException($adapter);
         }
@@ -125,4 +130,31 @@ private function getRedisCache(array $config)
 
         return $cache;
     }
+
+    /**
+     * creates memcached cache
+     *
+     * @param array $config
+     * @return MemcachedCache
+     */
+    private function getMemcachedCache(array $config)
+    {
+        $host = 'localhost';
+        $port = 11211;
+
+        if (isset($config['host'])) {
+            $host = $config['host'];
+        }
+
+        if (isset($config['port'])) {
+            $port = $config['port'];
+        }
+
+        $cache = new MemcachedCache();
+        $memcache = new \Memcached;
+        $memcache->addServer($host, $port);
+        $cache->setMemcached($memcache);
+
+        return $cache;
+    }
 }