1 files changed, 51 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/cache/mem_cache_store.rb b/activesupport/lib/active_support/cache/mem_cache_store.rb
new file mode 100644
index 0000000000..5820d15cc5
--- /dev/null
+++ b/activesupport/lib/active_support/cache/mem_cache_store.rb
@@ -0,0 +1,51 @@
+require 'memcache'
+
+module ActiveSupport
+  module Cache
+    class MemCacheStore < Store
+      attr_reader :addresses
+
+      def initialize(*addresses)
+        addresses = addresses.flatten
+        addresses = ["localhost"] if addresses.empty?
+        @addresses = addresses
+        @data = MemCache.new(*addresses)
+      end
+
+      def read(key, options = nil)
+        super
+        @data.get(key, raw?(options))
+      rescue MemCache::MemCacheError
+        nil
+      end
+
+      def write(key, value, options = nil)
+        super
+        @data.set(key, value, expires_in(options), raw?(options))
+      rescue MemCache::MemCacheError
+        nil
+      end
+
+      def delete(key, options = nil)
+        super
+        @data.delete(key, expires_in(options))
+      rescue MemCache::MemCacheError
+        nil
+      end
+
+      def delete_matched(matcher, options = nil)
+        super
+        raise "Not supported by Memcache"
+      end
+
+      private
+        def expires_in(options)
+          (options && options[:expires_in]) || 0
+        end
+
+        def raw?(options)
+          options && options[:raw]
+        end
+    end
+  end
+end