Add support for local services/characteristics/descriptors.

device/bluetooth/bluetooth_gatt_service_bluez.h

Index: device/bluetooth/bluetooth_gatt_service_bluez.h
diff --git a/device/bluetooth/bluetooth_gatt_service_bluez.h b/device/bluetooth/bluetooth_gatt_service_bluez.h
new file mode 100644
index 0000000000000000000000000000000000000000..bd5f2268d8792107244a7a41f0778f1fdce75c20
--- /dev/null
+++ b/device/bluetooth/bluetooth_gatt_service_bluez.h
@@ -0,0 +1,82 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.

[ortuno, 2016/04/14 17:42:35]

It's 2016!

[rkc, 2016/04/14 19:27:27]

It sure is.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef DEVICE_BLUETOOTH_BLUETOOTH_GATT_SERVICE_BLUEZ_H_
+#define DEVICE_BLUETOOTH_BLUETOOTH_GATT_SERVICE_BLUEZ_H_
+
+#include <stdint.h>

[ortuno, 2016/04/14 17:42:35]

Not necessary.

[rkc, 2016/04/14 19:27:27]

Done.

+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/macros.h"
+#include "dbus/object_path.h"
+#include "device/bluetooth/bluetooth_gatt_service.h"
+
+namespace device {
+
+class BluetoothGattCharacteristic;
+
+}  // namespace device
+
+namespace bluez {
+
+class BluetoothAdapterBlueZ;
+class BluetoothDeviceBlueZ;
+class BluetoothGattCharacteristicBlueZ;
+
+// The BluetoothGattServiceBlueZ class implements BluetootGattService
+// for GATT services on platforms that use BlueZ.

[ortuno, 2016/04/14 17:42:35]

Please mention that this class implements methods common to Local and Remote
Services.

[rkc, 2016/04/14 19:27:27]

Please see my comment elsewhere regarding this.

+class BluetoothGattServiceBlueZ : public device::BluetoothGattService {
+ public:
+  // device::BluetoothGattService overrides.
+  std::string GetIdentifier() const override;
+  std::vector<device::BluetoothGattCharacteristic*> GetCharacteristics()
+      const override;
+  std::vector<device::BluetoothGattService*> GetIncludedServices()
+      const override;
+  device::BluetoothGattCharacteristic* GetCharacteristic(
+      const std::string& identifier) const override;
+
+  // Object path of the underlying service.
+  const dbus::ObjectPath& object_path() const { return object_path_; }

[ortuno, 2016/04/14 17:42:35]

hmm there are a lot of variables called "object_path", maybe this should be
called GetObjectPath to make it less confusing.

[rkc, 2016/04/14 19:27:27]

Please see my other comments about this being a refactor.

+
+  // Parses a named D-Bus error into a service error code.
+  static device::BluetoothGattService::GattErrorCode DBusErrorToServiceError(
+      const std::string error_name);
+
+  // Returns the adapter associated with this service.
+  BluetoothAdapterBlueZ* GetAdapter() const;
+
+ protected:
+  BluetoothGattServiceBlueZ(BluetoothAdapterBlueZ* adapter,
+                            const dbus::ObjectPath& object_path);
+  ~BluetoothGattServiceBlueZ() override;
+
+  using CharacteristicMap =
+      std::map<dbus::ObjectPath, BluetoothGattCharacteristicBlueZ*>;

[ortuno, 2016/04/14 17:42:35]

optional: Consider using unique_ptrs. If not then document that classes need to
manually free the objects.

[rkc, 2016/04/14 19:27:27]

Please see my other comments about this being a refactor.

[ortuno, 2016/04/14 21:17:38]

I still think you need to document that classes that add to the map need to free
the objects manually, but up to you.

[rkc, 2016/04/14 21:59:38]

Done.

+
+  // Mapping from GATT characteristic object paths to characteristic objects.
+  // owned by this service. Since the BlueZ implementation uses object
+  // paths as unique identifiers, we also use this mapping to return
+  // characteristics by identifier.
+  CharacteristicMap characteristics_;
+
+ private:
+  friend class BluetoothDeviceBlueZ;
+
+  // The adapter associated with this service. It's ok to store a raw pointer
+  // here since |adapter_| indirectly owns this instance.
+  BluetoothAdapterBlueZ* adapter_;
+
+  // Object path of the GATT service.
+  dbus::ObjectPath object_path_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothGattServiceBlueZ);
+};
+
+}  // namespace bluez
+
+#endif  // DEVICE_BLUETOOTH_BLUETOOTH_GATT_SERVICE_BLUEZ_H_