PolicyManager: New main PolicyManager class.
The PolicyManager class is the singleton instance used by the Update
Engine to make policy requests. The PolicyManager uses a Policy pure
virtual class with the definition of all the public policy
implementation. Different platforms can implement a different
subclass of it or extend the existing one.
The Policy class comprises the set of policy related decision and
the logic implementing those.
This patch includes a new PolicyManager class and a sample Policy
for ChromeOS that will be extended when the actual policies are
migrated to this framework. A default policy is also included and
is used whenever the actual policy fails, as a safe default.
BUG=chromium:338591
TEST=Unit tests pass.
Change-Id: If60c87d8cb9031eb15b6d4d5e937f65f56c79a04
Reviewed-on: https://chromium-review.googlesource.com/186884
Tested-by: Alex Deymo <deymo@chromium.org>
Reviewed-by: Gilad Arnold <garnold@chromium.org>
Commit-Queue: Alex Deymo <deymo@chromium.org>
diff --git a/policy_manager/policy_manager.cc b/policy_manager/policy_manager.cc
new file mode 100644
index 0000000..6bfbd0e
--- /dev/null
+++ b/policy_manager/policy_manager.cc
@@ -0,0 +1,31 @@
+// Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "update_engine/policy_manager/chromeos_policy.h"
+#include "update_engine/policy_manager/policy_manager.h"
+#include "update_engine/policy_manager/real_random_provider.h"
+
+namespace chromeos_policy_manager {
+
+template <typename T>
+bool InitProvider(scoped_ptr<T>* handle_ptr, T* provider) {
+ handle_ptr->reset(provider);
+ return handle_ptr->get() && (*handle_ptr)->Init();
+}
+
+bool PolicyManager::Init() {
+ // TODO(deymo): Make it possible to replace this policy with a different
+ // implementation with a build-time flag.
+ policy_.reset(new ChromeOSPolicy());
+
+ bool result = true;
+
+ // Initialize all the providers.
+ result = result && InitProvider<RandomProvider>(&random_,
+ new RealRandomProvider());
+
+ return result;
+}
+
+} // namespace chromeos_policy_manager