bluetooth: android: Initial basic Descriptors implementation.

device/bluetooth/bluetooth_remote_gatt_descriptor_android.cc

+// Copyright 2016 The Chromium 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 "device/bluetooth/bluetooth_remote_gatt_descriptor_android.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_array.h"
+#include "base/android/jni_string.h"
+#include "base/bind.h"
+#include "base/logging.h"
+#include "base/message_loop/message_loop.h"
+#include "device/bluetooth/bluetooth_adapter_android.h"
+#include "device/bluetooth/bluetooth_gatt_notify_session_android.h"
+#include "device/bluetooth/bluetooth_remote_gatt_service_android.h"
+#include "jni/ChromeBluetoothRemoteGattDescriptor_jni.h"
+
+using base::android::AttachCurrentThread;
+
+namespace device {
+
+// static
+scoped_ptr<BluetoothRemoteGattDescriptorAndroid>
+BluetoothRemoteGattDescriptorAndroid::Create(
+    BluetoothAdapterAndroid* adapter,
+    const std::string& instance_id,
+    jobject /* BluetoothGattDescriptorWrapper */
+    bluetooth_gatt_descriptor_wrapper,
+    jobject /* chromeBluetoothDevice */
+    chrome_bluetooth_device) {
+  scoped_ptr<BluetoothRemoteGattDescriptorAndroid> descriptor(
+      new BluetoothRemoteGattDescriptorAndroid(adapter, instance_id));
+
+  descriptor->j_descriptor_.Reset(
+      Java_ChromeBluetoothRemoteGattDescriptor_create(
+          AttachCurrentThread(),
+          // TODO(scheib) Will eventually need to pass c++ pointer:
+          //     reinterpret_cast<intptr_t>(descriptor.get()),
+          bluetooth_gatt_descriptor_wrapper, chrome_bluetooth_device));
+
+  return descriptor;
+}
+
+BluetoothRemoteGattDescriptorAndroid::~BluetoothRemoteGattDescriptorAndroid() {
+  Java_ChromeBluetoothRemoteGattDescriptor_onBluetoothRemoteGattDescriptorAndroidDestruction(
+      AttachCurrentThread(), j_descriptor_.obj());
+}
+
+// static
+bool BluetoothRemoteGattDescriptorAndroid::RegisterJNI(JNIEnv* env) {
+  return RegisterNativesImpl(
+      env);  // Generated in ChromeBluetoothRemoteGattDescriptor_jni.h
+}
+
+base::android::ScopedJavaLocalRef<jobject>
+BluetoothRemoteGattDescriptorAndroid::GetJavaObject() {
+  return base::android::ScopedJavaLocalRef<jobject>(j_descriptor_);
+}
+
+std::string BluetoothRemoteGattDescriptorAndroid::GetIdentifier() const {
+  return instance_id_;
+}
+
+BluetoothUUID BluetoothRemoteGattDescriptorAndroid::GetUUID() const {
+  return device::BluetoothUUID(
+      ConvertJavaStringToUTF8(Java_ChromeBluetoothRemoteGattDescriptor_getUUID(
+          AttachCurrentThread(), j_descriptor_.obj())));
+}
+
+bool BluetoothRemoteGattDescriptorAndroid::IsLocal() const {
+  return false;
+}
+
+const std::vector<uint8_t>& BluetoothRemoteGattDescriptorAndroid::GetValue()
+    const {
+  NOTIMPLEMENTED();
+  static std::vector<uint8_t> empty_value;
+  return empty_value;
+}
+
+BluetoothGattCharacteristic*
+BluetoothRemoteGattDescriptorAndroid::GetCharacteristic() const {
+  NOTIMPLEMENTED();
+  return nullptr;
+}
+
+BluetoothGattCharacteristic::Permissions
+BluetoothRemoteGattDescriptorAndroid::GetPermissions() const {
+  NOTIMPLEMENTED();
+  return 0;
+}
+
+void BluetoothRemoteGattDescriptorAndroid::ReadRemoteDescriptor(
+    const ValueCallback& callback,
+    const ErrorCallback& error_callback) {
+  NOTIMPLEMENTED();
+  base::MessageLoop::current()->PostTask(
+      FROM_HERE,
+      base::Bind(error_callback, BluetoothGattService::GATT_ERROR_FAILED));
+}
+
+void BluetoothRemoteGattDescriptorAndroid::WriteRemoteDescriptor(
+    const std::vector<uint8_t>& new_value,
+    const base::Closure& callback,
+    const ErrorCallback& error_callback) {
+  NOTIMPLEMENTED();
+  base::MessageLoop::current()->PostTask(
+      FROM_HERE,
+      base::Bind(error_callback, BluetoothGattService::GATT_ERROR_FAILED));
+}
+
+BluetoothRemoteGattDescriptorAndroid::BluetoothRemoteGattDescriptorAndroid(
+    BluetoothAdapterAndroid* adapter,
+    const std::string& instance_id)
+    : adapter_(adapter), instance_id_(instance_id) {}

[Jeffrey Yasskin, 2016/01/12 21:53:54]

I don't see any uses of adapter_. What's it for?

[Jeffrey Yasskin, 2016/01/12 23:25:59]

Ping.

[scheib, 2016/01/12 23:54:46]

Done (removed). It's for a later patch where we will need to notify observers of
descriptor value changes. 

+
+}  // namespace device