From 17dd5d0816e500d0818a07bc9ca72b52abce40b3 Mon Sep 17 00:00:00 2001
From: Robin McCorkell <rmccorkell@karoshi.org.uk>
Date: Fri, 9 Jan 2015 13:12:21 +0000
Subject: [PATCH] Add Null memcacher

---
 lib/private/memcache/factory.php |  4 ++--
 lib/private/memcache/null.php    | 35 ++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+), 2 deletions(-)
 create mode 100644 lib/private/memcache/null.php

diff --git a/lib/private/memcache/factory.php b/lib/private/memcache/factory.php
index dba9e8a0e00..1e663eecfe1 100644
--- a/lib/private/memcache/factory.php
+++ b/lib/private/memcache/factory.php
@@ -24,7 +24,7 @@ class Factory implements ICacheFactory {
 	}
 
 	/**
-	 * get a cache instance, will return null if no backend is available
+	 * get a cache instance, or Null backend if no backend available
 	 *
 	 * @param string $prefix
 	 * @return \OC\Memcache\Cache
@@ -42,7 +42,7 @@ class Factory implements ICacheFactory {
 		} elseif (Memcached::isAvailable()) {
 			return new Memcached($prefix);
 		} else {
-			return null;
+			return new Null($prefix);
 		}
 	}
 
diff --git a/lib/private/memcache/null.php b/lib/private/memcache/null.php
new file mode 100644
index 00000000000..62cd060aaca
--- /dev/null
+++ b/lib/private/memcache/null.php
@@ -0,0 +1,35 @@
+<?php
+/**
+ * Copyright (c) 2015 Robin McCorkell <rmccorkell@karoshi.org.uk>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\Memcache;
+
+class Null extends Cache {
+	public function get($key) {
+		return null;
+	}
+
+	public function set($key, $value, $ttl = 0) {
+		return true;
+	}
+
+	public function hasKey($key) {
+		return false;
+	}
+
+	public function remove($key) {
+		return true;
+	}
+
+	public function clear($prefix = '') {
+		return true;
+	}
+
+	static public function isAvailable() {
+		return true;
+	}
+}
-- 
2.39.5