diff --git a/src/DSN.php b/src/DSN.php
index e733136..a128c62 100644
--- a/src/DSN.php
+++ b/src/DSN.php
@@ -104,6 +104,11 @@ public function getHosts()
         return $this->hosts;
     }
 
+    public function getFirstHost()
+    {
+        return $this->hosts[0];
+    }
+
     /**
      * @return array
      */
@@ -177,7 +182,7 @@ private function parseDsn($dsn)
             $dsn  = substr($dsn, $pos + 1);
 
             $auth = [];
-            if (sizeof($temp) === 2) {
+            if (count($temp) === 2) {
                 $auth['username'] = $temp[0];
                 $auth['password'] = $temp[1];
             } else {
@@ -197,7 +202,7 @@ private function parseDsn($dsn)
             // parse parameters
             if (preg_match('#^(.*)/(\d+)$#', $params, $matches)) {
                 // parse database
-                $this->database = (int)$matches[2];
+                $this->database = (int) $matches[2];
             }
         }
     }
@@ -228,7 +233,7 @@ protected function parseParameters($matches)
                 switch ($kv[0]) {
                     case 'weight':
                         if ($kv[1]) {
-                            $this->weight = (int)$kv[1];
+                            $this->weight = (int) $kv[1];
                         }
                         break;
                     case 'alias':
diff --git a/src/Factory/AbstractAdapterFactory.php b/src/Factory/AbstractAdapterFactory.php
index 9de4976..8585ea3 100644
--- a/src/Factory/AbstractAdapterFactory.php
+++ b/src/Factory/AbstractAdapterFactory.php
@@ -40,7 +40,7 @@ public function createAdapter(array $options = [])
         $this->verifyDependencies();
 
         $resolver = new OptionsResolver();
-        $this->configureOptionResolver($resolver);
+        static::configureOptionResolver($resolver);
         $config = $resolver->resolve($options);
 
         return $this->getAdapter($config);
@@ -49,12 +49,12 @@ public function createAdapter(array $options = [])
     /**
      * {@inheritdoc}
      */
-    public function validate(array $options, $adapterName)
+    public static function validate(array $options, $adapterName)
     {
-        $this->verifyDependencies();
+        static::verifyDependencies();
 
         $resolver = new OptionsResolver();
-        $this->configureOptionResolver($resolver);
+        static::configureOptionResolver($resolver);
 
         try {
             $resolver->resolve($options);
@@ -75,7 +75,7 @@ public function validate(array $options, $adapterName)
      *
      * @throws \LogicException
      */
-    protected function verifyDependencies()
+    protected static function verifyDependencies()
     {
         foreach (static::$dependencies as $dependency) {
             if (!class_exists($dependency['requiredClass'])) {
@@ -91,12 +91,12 @@ protected function verifyDependencies()
     }
 
     /**
-     * By default we do not have any options to configure. A factory should override this function and configure
+     * By default we do not have any options to configure. A factory should override this function and confgure
      * the options resolver.
      *
      * @param OptionsResolver $resolver
      */
-    protected function configureOptionResolver(OptionsResolver $resolver)
+    protected static function configureOptionResolver(OptionsResolver $resolver)
     {
     }
 }
diff --git a/src/Factory/AbstractDsnFactory.php b/src/Factory/AbstractDsnFactory.php
index 8e35f0b..38cb8b4 100644
--- a/src/Factory/AbstractDsnFactory.php
+++ b/src/Factory/AbstractDsnFactory.php
@@ -24,6 +24,9 @@ abstract class AbstractDsnFactory extends AbstractAdapterFactory
      */
     private $DSN;
 
+    /**
+     * @return DSN
+     */
     protected function getDsn()
     {
         return $this->DSN;
@@ -32,13 +35,16 @@ protected function getDsn()
     /**
      * {@inheritdoc}
      */
-    protected function configureOptionResolver(OptionsResolver $resolver)
+    protected static function configureOptionResolver(OptionsResolver $resolver)
     {
         $resolver->setDefaults(['dsn' => '']);
         $resolver->setAllowedTypes('dsn', ['string']);
     }
 
-    public function validate(array $options, $adapterName)
+    /**
+     * {@inheritdoc}
+     */
+    public static function validate(array $options, $adapterName)
     {
         parent::validate($options, $adapterName);
 
@@ -50,7 +56,22 @@ public function validate(array $options, $adapterName)
         if (!$dsn->isValid()) {
             throw new \InvalidArgumentException('Invalid DSN: '.$options['dsn']);
         }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function createAdapter(array $options = [])
+    {
+        if (!empty($options['dsn'])) {
+            $dsn = new DSN($options['dsn']);
+            if (!$dsn->isValid()) {
+                throw new \InvalidArgumentException('Invalid DSN: '.$options['dsn']);
+            }
+
+            $this->DSN = $dsn;
+        }
 
-        $this->DSN = $dsn;
+        return parent::createAdapter($options);
     }
 }
diff --git a/src/Factory/AdapterFactoryInterface.php b/src/Factory/AdapterFactoryInterface.php
index 213e8a0..252b15d 100644
--- a/src/Factory/AdapterFactoryInterface.php
+++ b/src/Factory/AdapterFactoryInterface.php
@@ -39,5 +39,5 @@ public function createAdapter(array $options = []);
      * @throws \Symfony\Component\OptionsResolver\Exception\NoSuchOptionException     If a lazy option reads an unavailable option
      * @throws \Symfony\Component\OptionsResolver\Exception\AccessException           If called from a lazy option or normalizer
      */
-    public function validate(array $options, $adapterName);
+    public static function validate(array $options, $adapterName);
 }
diff --git a/src/Factory/RedisFactory.php b/src/Factory/RedisFactory.php
index d994229..db72064 100644
--- a/src/Factory/RedisFactory.php
+++ b/src/Factory/RedisFactory.php
@@ -12,7 +12,6 @@
 namespace Cache\AdapterBundle\Factory;
 
 use Cache\Adapter\Redis\RedisCachePool;
-use Cache\AdapterBundle\DSN;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 /**
@@ -39,7 +38,8 @@ public function getAdapter(array $config)
                 $client->auth($dsn->getPassword());
             }
 
-            $client->connect($dsn->getHost(), $dsn->getPort());
+            $host = $dsn->getFirstHost();
+            $client->connect($host['host'], $host['port']);
         }
 
         return new RedisCachePool($client);