shill: implement Manager.GetService (error-case only)

BUG=chromium-os:20254
TEST=unittests, WiFiManager/000_SSID_Length_Limit

this gives us enough to pass the autotest for
network_WiFiManager/000_SSID_Length_Limit.

Change-Id: Ib0305e707d2203327d846be3e0b206033d6a884a
Reviewed-on: http://gerrit.chromium.org/gerrit/7567
Commit-Ready: mukesh agrawal <quiche@chromium.org>
Reviewed-by: mukesh agrawal <quiche@chromium.org>
Tested-by: mukesh agrawal <quiche@chromium.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/key_value_store.h b/key_value_store.h
new file mode 100644
index 00000000..bf026000
--- /dev/null
+++ b/key_value_store.h
@@ -0,0 +1,51 @@
+// Copyright (c) 2011 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.
+
+#ifndef SHILL_KEY_VALUE_STORE_
+#define SHILL_KEY_VALUE_STORE_
+
+#include <map>
+#include <string>
+
+#include <base/basictypes.h>
+
+namespace shill {
+
+class KeyValueStore {
+  // A simple store for key-value pairs, which supports (a limited set of)
+  // heterogenous value types.
+  //
+  // Compare to PropertyStore, which enables a class to (selectively)
+  // expose its instance members as properties accessible via
+  // RPC. (RPC support for ProperyStore is implemented in a
+  // protocol-specific adaptor. e.g. dbus_adpator.)
+  //
+  // Implemented separately from PropertyStore, to avoid complicating
+  // the PropertyStore interface. In particular, objects implementing the
+  // PropertyStore interface always provide the storage themselves. In
+  // contrast, users of KeyValueStore expect KeyValueStore to provide
+  // storage.
+ public:
+  KeyValueStore();
+
+  bool ContainsBool(const std::string &name) const;
+  bool ContainsString(const std::string &name) const;
+
+  bool GetBool(const std::string &name) const;
+  const std::string &GetString(const std::string &name) const;
+
+  void SetBool(const std::string &name, bool value);
+  void SetString(const std::string& name,
+                         const std::string& value);
+
+ private:
+  std::map<std::string, bool> bool_properties_;
+  std::map<std::string, std::string> string_properties_;
+
+  DISALLOW_COPY_AND_ASSIGN(KeyValueStore);
+};
+
+}  // namespace shill
+
+#endif  // SHILL_KEY_VALUE_STORE_