S3: add storageClass option

application/libraries/Omeka/Storage/Adapter/ZendS3.php

@@ -24,6 +24,9 @@ class Omeka_Storage_Adapter_ZendS3 implements Omeka_Storage_Adapter_AdapterInter
     const EXPIRATION_OPTION = 'expiration';
     const FORCE_SSL = 'forceSSL';
     const ACLS_OPTION = 'acls';
+    const STORAGE_CLASS_OPTION = 'storageClass';
+
+    const S3_STORAGE_CLASS_HEADER = 'x-amz-storage-class';
 
     /**
      * @var Zend_Service_Amazon_S3
@@ -45,6 +48,11 @@ class Omeka_Storage_Adapter_ZendS3 implements Omeka_Storage_Adapter_AdapterInter
      */
     private $_acls = true;
 
+    /**
+     * @var string
+     */
+    private $_storageClass;
+
     /**
      * Set options for the storage adapter.
      *
@@ -83,6 +91,10 @@ public function __construct(array $options = array())
         if (isset($this->_options[self::ACLS_OPTION])) {
             $this->_acls = (bool) $this->_options[self::ACLS_OPTION];
         }
+
+        if (isset($this->_options[self::STORAGE_CLASS_OPTION])) {
+            $this->_storageClass = $this->_options[self::STORAGE_CLASS_OPTION];
+        }
     }
 
     public function setUp()
@@ -116,6 +128,10 @@ public function store($source, $dest)
             }
         }
 
+        if ($this->_storageClass) {
+            $meta[self::S3_STORAGE_CLASS_HEADER] = $this->_storageClass;
+        }
+
         $status = $this->_s3->putFileStream($source, $objectName, $meta);
 
         if (!$status) {