added Dropbox Adapter Factory

DependencyInjection/Factory/DropboxAdapterFactory.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Knp\Bundle\GaufretteBundle\DependencyInjection\Factory;
+
+use Symfony\Component\Config\Definition\Builder\NodeDefinition;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\DefinitionDecorator;
+
+/**
+ * Dropbox Adapter Factory
+ */
+class DropboxAdapterFactory implements AdapterFactoryInterface
+{
+    /**
+     * {@inheritDoc}
+     */
+    function create(ContainerBuilder $container, $id, array $config)
+    {
+        $container
+            ->setDefinition($id, new DefinitionDecorator('knp_gaufrette.adapter.dropbox'))
+            ->addArgument(new Reference($config['api_id']))
+        ;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    function getKey()
+    {
+        return 'dropbox';
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    function addConfiguration(NodeDefinition $builder)
+    {
+        $builder
+            ->children()
+                ->scalarNode('api_id')->isRequired()->end()
+            ->end()
+        ;
+    }
+}

Resources/config/adapter_factories.xml

@@ -47,7 +47,9 @@
         <service id="knp_gaufrette.adapter.factory.cache" class="Knp\Bundle\GaufretteBundle\DependencyInjection\Factory\CacheAdapterFactory">
             <tag name="gaufrette.adapter.factory" />
         </service>
-
+        <service id="knp_gaufrette.adapter.factory.dropbox" class="Knp\Bundle\GaufretteBundle\DependencyInjection\Factory\DropboxAdapterFactory">
+            <tag name="gaufrette.adapter.factory" />
+        </service>
     </services>
 
 </container>

Resources/config/gaufrette.xml

@@ -46,6 +46,7 @@
         <service id="knp_gaufrette.filesystem_map" class="%knp_gaufrette.filesystem_map.class%">
             <argument /> <!-- map of filesystems -->
         </service>
+        <service id="knp_gaufrette.adapter.dropbox" class="Gaufrette\Adapter\Dropbox" abstract="true" public="false" />
     </services>
 
 </container>