Create PresenceDeviceProvider

PiperOrigin-RevId: 528913199

connections/core.h

@@ -17,6 +17,7 @@
 
 #include <functional>
 #include <string>
+#include <type_traits>
 
 #include "absl/strings/string_view.h"
 #include "absl/types/span.h"
@@ -507,7 +508,9 @@ class Core {
 
   // Registers a DeviceProvider to provide functionality for Nearby Connections
   // to interact with the DeviceProvider for retrieving the local device.
-  void RegisterDeviceProvider(NearbyDeviceProvider&& provider);
+  template <typename T, typename std::enable_if<std::is_base_of<
+                            NearbyDevice, T>::value>::type* = nullptr>
+  void RegisterDeviceProvider(NearbyDeviceProvider<T>* provider);
 
  private:
   ClientProxy client_;

internal/interop/BUILD

@@ -10,6 +10,7 @@ cc_library(
     ],
     deps = [
         "//internal/platform:connection_info",
+        "//internal/platform:types",
         "@com_google_absl//absl/strings",
         "@com_google_absl//absl/types:variant",
     ],

internal/interop/device.h

@@ -41,10 +41,6 @@ class NearbyDevice {
   };
   NearbyDevice() = default;
   virtual ~NearbyDevice() = default;
-  NearbyDevice(NearbyDevice&&) = default;
-  NearbyDevice& operator=(NearbyDevice&&) = default;
-  NearbyDevice(const NearbyDevice&) = delete;
-  NearbyDevice& operator=(const NearbyDevice&) = delete;
   virtual std::string GetEndpointId() const = 0;
   // We will be adding more ConnectionInfo types to this variant as they are
   // implemented.

internal/interop/device_provider.h

@@ -22,10 +22,13 @@ namespace nearby {
 // The base device provider class for use with the Nearby Connections V3 APIs.
 // This class currently provides a function to get the local device for whatever
 // client implements it.
+template <typename T, typename std::enable_if<std::is_base_of<
+                          ::nearby::NearbyDevice, T>::value>::type* = nullptr>
 class NearbyDeviceProvider {
+ public:
   virtual ~NearbyDeviceProvider() = default;
 
-  virtual NearbyDevice* GetLocalDevice() = 0;
+  const virtual T& GetLocalDevice() = 0;
 };
 }  // namespace nearby
 

internal/platform/BUILD

@@ -348,6 +348,7 @@ cc_library(
         "//fastpair:__subpackages__",
         "//internal/base:__subpackages__",
         "//internal/flags:__subpackages__",
+        "//internal/interop:__pkg__",
         "//internal/platform/implementation/windows:__subpackages__",
         "//internal/preferences:__subpackages__",
         "//internal/test:__subpackages__",

presence/BUILD

@@ -23,11 +23,14 @@ cc_library(
     ],
     hdrs = [
         "presence_client.h",
+        "presence_device_provider.h",
         "presence_service.h",
     ],
     deps = [
         ":types",
+        "//internal/interop:device",
         "//internal/platform:types",
+        "//internal/proto:metadata_cc_proto",
         "//presence/implementation:internal",  # build_cleaner: keep
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
@@ -64,6 +67,7 @@ cc_library(
         "//internal/interop:device",
         "//internal/platform:connection_info",
         "//internal/platform:logging",
+        "//internal/platform:types",
         "//internal/platform/implementation:types",
         "//internal/proto:credential_cc_proto",
         "//internal/proto:metadata_cc_proto",
@@ -138,15 +142,19 @@ cc_test(
     size = "small",
     srcs = [
         "presence_client_test.cc",
+        "presence_device_provider_test.cc",
         "presence_service_test.cc",
     ],
     shard_count = 6,
     deps = [
         ":presence",
         ":types",
         "//internal/platform:test_util",
+        "//internal/platform:types",
+        "//internal/proto:metadata_cc_proto",
         "@com_github_protobuf_matchers//protobuf-matchers",
         "@com_google_absl//absl/status",
+        "@com_google_absl//absl/strings",
         "@com_google_googletest//:gtest_main",
     ] + select({
         "//tools/cc_target_os:windows": [

presence/implementation/service_controller.h

@@ -19,6 +19,7 @@
 #include <vector>
 
 #include "absl/status/statusor.h"
+#include "internal/proto/metadata.pb.h"
 #include "presence/broadcast_request.h"
 #include "presence/data_types.h"
 #include "presence/scan_request.h"

presence/implementation/service_controller_impl.h

@@ -20,6 +20,7 @@
 #include <utility>
 
 #include "absl/status/statusor.h"
+#include "internal/proto/metadata.pb.h"
 #include "presence/implementation/broadcast_manager.h"
 #include "presence/implementation/credential_manager_impl.h"
 #include "presence/implementation/mediums/mediums.h"
@@ -52,6 +53,7 @@ class ServiceControllerImpl : public ServiceController {
       const std::vector<nearby::internal::IdentityType>& identity_types,
       int credential_life_cycle_days, int contiguous_copy_of_credentials,
       GenerateCredentialsResultCallback credentials_generated_cb) override;
+
   ::nearby::internal::Metadata GetLocalDeviceMetadata() override {
     return credential_manager_.GetLocalDeviceMetadata();
   }

presence/presence_client.cc

@@ -14,13 +14,13 @@
 
 #include "presence/presence_client.h"
 
-#include <memory>
+#include <optional>
 #include <utility>
-#include <vector>
 
 #include "absl/status/status.h"
 #include "internal/platform/borrowable.h"
 #include "internal/platform/logging.h"
+#include "presence/presence_device.h"
 #include "presence/presence_service.h"
 
 namespace nearby {
@@ -62,5 +62,13 @@ void PresenceClient::StopBroadcast(BroadcastSessionId session_id) {
   }
 }
 
+std::optional<PresenceDevice> PresenceClient::GetLocalDevice() {
+  ::nearby::Borrowed<PresenceService*> borrowed = service_.Borrow();
+  if (borrowed) {
+    return (*borrowed)->GetLocalDeviceProvider()->GetLocalDevice();
+  }
+  return std::nullopt;
+}
+
 }  // namespace presence
 }  // namespace nearby

presence/presence_client.h

@@ -23,6 +23,7 @@
 #include "internal/platform/borrowable.h"
 #include "presence/broadcast_request.h"
 #include "presence/data_types.h"
+#include "presence/presence_device.h"
 #include "presence/scan_request.h"
 
 namespace nearby {
@@ -78,6 +79,11 @@ class PresenceClient {
   // terminated.
   void StopBroadcast(BroadcastSessionId session_id);
 
+  // Returns the local PresenceDevice describing the current device's actions,
+  // connectivity info and unique identifier for use in Connections and
+  // Presence.
+  std::optional<PresenceDevice> GetLocalDevice();
+
  private:
   BorrowablePresenceService service_;
 };

presence/presence_client_test.cc

@@ -20,21 +20,36 @@
 #include "absl/status/status.h"
 #include "internal/platform/medium_environment.h"
 #include "presence/data_types.h"
+#include "presence/presence_device.h"
 #include "presence/presence_service.h"
 
 namespace nearby {
 namespace presence {
 namespace {
 
+using ::nearby::internal::Metadata;
 using ::testing::status::StatusIs;
 
+constexpr absl::string_view kMacAddr = "\x4C\x8B\x1D\xCE\xBA\xD1";
+
 // Creates a PresenceClient and destroys PresenceService that was used to create
 // it.
 PresenceClient CreateDefunctPresenceClient() {
   PresenceService presence_service;
   return presence_service.CreatePresenceClient();
 }
 
+Metadata CreateTestMetadata() {
+  Metadata metadata;
+  metadata.set_device_type(internal::DEVICE_TYPE_PHONE);
+  metadata.set_account_name("test_account");
+  metadata.set_device_name("NP test device");
+  metadata.set_user_name("Test user");
+  metadata.set_device_profile_url("test_image.test.com");
+  metadata.set_bluetooth_mac_address(kMacAddr);
+  return metadata;
+}
+
 class PresenceClientTest : public testing::Test {
  protected:
   nearby::MediumEnvironment& env_{nearby::MediumEnvironment::Instance()};
@@ -104,6 +119,23 @@ TEST_F(PresenceClientTest, StartScanFailsWhenPresenceServiceIsGone) {
   env_.Stop();
 }
 
+TEST_F(PresenceClientTest, GettingDeviceWorks) {
+  PresenceService presence_service;
+  PresenceClient presence_client = presence_service.CreatePresenceClient();
+  presence_service.UpdateLocalDeviceMetadata(CreateTestMetadata(), false, "",
+                                             {}, 0, 0, {});
+  auto device = presence_client.GetLocalDevice();
+  ASSERT_NE(device, std::nullopt);
+  EXPECT_EQ(device->GetEndpointId().length(), kEndpointIdLength);
+  EXPECT_EQ(device->GetMetadata().SerializeAsString(),
+            CreateTestMetadata().SerializeAsString());
+}
+
+TEST_F(PresenceClientTest, TestGettingDeviceDefunct) {
+  PresenceClient presence_client = CreateDefunctPresenceClient();
+  auto device = presence_client.GetLocalDevice();
+  EXPECT_EQ(device, std::nullopt);
+}
 }  // namespace
 }  // namespace presence
 }  // namespace nearby

presence/presence_device.h

@@ -60,12 +60,13 @@ class PresenceDevice : public nearby::NearbyDevice {
       const override;
   DeviceMotion GetDeviceMotion() const { return device_motion_; }
   Metadata GetMetadata() const { return metadata_; }
+  void SetMetadata(const Metadata metadata) { metadata_ = metadata; }
   absl::Time GetDiscoveryTimestamp() const { return discovery_timestamp_; }
 
  private:
   const absl::Time discovery_timestamp_;
   const DeviceMotion device_motion_;
-  const Metadata metadata_;
+  Metadata metadata_;
   std::vector<DataElement> extended_properties_;
   std::vector<PresenceAction> actions_;
   std::string endpoint_id_;
@@ -77,7 +78,9 @@ class PresenceDevice : public nearby::NearbyDevice {
 inline bool operator==(const PresenceDevice& d1, const PresenceDevice& d2) {
   return d1.GetDeviceMotion() == d2.GetDeviceMotion() &&
          d1.GetMetadata().SerializeAsString() ==
-             d2.GetMetadata().SerializeAsString();
+             d2.GetMetadata().SerializeAsString() &&
+         d1.GetActions() == d2.GetActions() &&
+         d1.GetExtendedProperties() == d2.GetExtendedProperties();
 }
 
 inline bool operator!=(const PresenceDevice& d1, const PresenceDevice& d2) {

presence/presence_device_provider.h

@@ -0,0 +1,42 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef THIRD_PARTY_NEARBY_PRESENCE_PRESENCE_DEVICE_PROVIDER_H_
+#define THIRD_PARTY_NEARBY_PRESENCE_PRESENCE_DEVICE_PROVIDER_H_
+
+#include "internal/interop/device_provider.h"
+#include "internal/proto/metadata.proto.h"
+#include "presence/presence_device.h"
+
+namespace nearby {
+namespace presence {
+
+class PresenceDeviceProvider : public NearbyDeviceProvider<PresenceDevice> {
+ public:
+  explicit PresenceDeviceProvider(::nearby::internal::Metadata metadata)
+      : device_{metadata} {}
+
+  const PresenceDevice& GetLocalDevice() override { return device_; }
+
+  void UpdateMetadata(const ::nearby::internal::Metadata& metadata) {
+    device_.SetMetadata(metadata);
+  }
+
+ private:
+  PresenceDevice device_;
+};
+}  // namespace presence
+}  // namespace nearby
+
+#endif  // THIRD_PARTY_NEARBY_PRESENCE_PRESENCE_DEVICE_PROVIDER_H_

presence/presence_device_provider_test.cc

@@ -0,0 +1,72 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "presence/presence_device_provider.h"
+
+#include <type_traits>
+
+#include "gmock/gmock.h"
+#include "protobuf-matchers/protocol-buffer-matchers.h"
+#include "gtest/gtest.h"
+#include "absl/strings/string_view.h"
+#include "internal/proto/metadata.pb.h"
+#include "internal/proto/metadata.proto.h"
+#include "presence/presence_device.h"
+
+namespace nearby {
+namespace presence {
+namespace {
+using ::nearby::internal::Metadata;
+
+constexpr absl::string_view kMacAddr = "\x4C\x8B\x1D\xCE\xBA\xD1";
+
+Metadata CreateTestMetadata() {
+  Metadata metadata;
+  metadata.set_device_type(internal::DEVICE_TYPE_PHONE);
+  metadata.set_account_name("test_account");
+  metadata.set_device_name("NP test device");
+  metadata.set_user_name("Test user");
+  metadata.set_device_profile_url("test_image.test.com");
+  metadata.set_bluetooth_mac_address(kMacAddr);
+  return metadata;
+}
+
+TEST(PresenceDeviceProviderTest, ProviderIsNotTriviallyConstructible) {
+  EXPECT_FALSE(std::is_trivially_constructible<PresenceDeviceProvider>::value);
+}
+
+TEST(PresenceDeviceProviderTest, DeviceProviderWorks) {
+  PresenceDeviceProvider provider(CreateTestMetadata());
+  auto device = provider.GetLocalDevice();
+  EXPECT_EQ(device.GetMetadata().SerializeAsString(),
+            CreateTestMetadata().SerializeAsString());
+}
+
+TEST(PresenceDeviceProviderTest, DeviceProviderCanUpdateDevice) {
+  PresenceDeviceProvider provider(CreateTestMetadata());
+  auto device = provider.GetLocalDevice();
+  EXPECT_EQ(device.GetMetadata().SerializeAsString(),
+            CreateTestMetadata().SerializeAsString());
+  Metadata new_metadata = CreateTestMetadata();
+  new_metadata.set_device_name("NP interop device");
+  provider.UpdateMetadata(new_metadata);
+  EXPECT_NE(device.GetMetadata().SerializeAsString(),
+            new_metadata.SerializeAsString());
+  EXPECT_EQ(provider.GetLocalDevice().GetMetadata().SerializeAsString(),
+            new_metadata.SerializeAsString());
+}
+
+}  // namespace
+}  // namespace presence
+}  // namespace nearby

presence/presence_service.cc

@@ -24,7 +24,9 @@
 namespace nearby {
 namespace presence {
 PresenceService::PresenceService() {
-  this->service_controller_ = std::make_unique<ServiceControllerImpl>();
+  service_controller_ = std::make_unique<ServiceControllerImpl>();
+  provider_ = std::make_unique<PresenceDeviceProvider>(
+      service_controller_->GetLocalDeviceMetadata());
 }
 
 PresenceClient PresenceService::CreatePresenceClient() {
@@ -35,6 +37,7 @@ absl::StatusOr<ScanSessionId> PresenceService::StartScan(
     ScanRequest scan_request, ScanCallback callback) {
   return service_controller_->StartScan(scan_request, std::move(callback));
 }
+
 void PresenceService::StopScan(ScanSessionId id) {
   service_controller_->StopScan(id);
 }