app/jni/com_android_bluetooth_hap_client.cpp

/*
 * Copyright 2021 HIMSA II K/S - www.himsa.com.
 * Represented by EHIMA - www.ehima.com
 *
 * 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
 *
 *      http://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.
 */

#define LOG_TAG "BluetoothHapClientJni"

#include <string.h>

#include <shared_mutex>

#include "com_android_bluetooth.h"
#include "hardware/bt_has.h"

using bluetooth::has::ConnectionState;
using bluetooth::has::ErrorCode;
using bluetooth::has::HasClientCallbacks;
using bluetooth::has::HasClientInterface;
using bluetooth::has::PresetInfo;
using bluetooth::has::PresetInfoReason;

namespace android {
static jmethodID method_onConnectionStateChanged;
static jmethodID method_onDeviceAvailable;
static jmethodID method_onFeaturesUpdate;
static jmethodID method_onActivePresetSelected;
static jmethodID method_onGroupActivePresetSelected;
static jmethodID method_onActivePresetSelectError;
static jmethodID method_onGroupActivePresetSelectError;
static jmethodID method_onPresetInfo;
static jmethodID method_onGroupPresetInfo;
static jmethodID method_onPresetInfoError;
static jmethodID method_onGroupPresetInfoError;
static jmethodID method_onPresetNameSetError;
static jmethodID method_onGroupPresetNameSetError;

static HasClientInterface* sHasClientInterface = nullptr;
static std::shared_timed_mutex interface_mutex;

static jobject mCallbacksObj = nullptr;
static std::shared_timed_mutex callbacks_mutex;

static struct {
  jclass clazz;
  jmethodID constructor;
  jmethodID getCodecType;
  jmethodID getCodecPriority;
  jmethodID getSampleRate;
  jmethodID getBitsPerSample;
  jmethodID getChannelMode;
  jmethodID getCodecSpecific1;
  jmethodID getCodecSpecific2;
  jmethodID getCodecSpecific3;
  jmethodID getCodecSpecific4;
} android_bluetooth_BluetoothHapPresetInfo;

class HasClientCallbacksImpl : public HasClientCallbacks {
 public:
  ~HasClientCallbacksImpl() = default;

  void OnConnectionState(ConnectionState state,
                         const RawAddress& bd_addr) override {
    log::info("");

    std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
    CallbackEnv sCallbackEnv(__func__);
    if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

    ScopedLocalRef<jbyteArray> addr(
        sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
    if (!addr.get()) {
      log::error("Failed to new bd addr jbyteArray for connection state");
      return;
    }

    sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
                                     (jbyte*)&bd_addr);
    sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onConnectionStateChanged,
                                 (jint)state, addr.get());
  }

  void OnDeviceAvailable(const RawAddress& bd_addr, uint8_t features) override {
    std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
    CallbackEnv sCallbackEnv(__func__);
    if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

    ScopedLocalRef<jbyteArray> addr(
        sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
    if (!addr.get()) {
      log::error("Failed to new bd addr jbyteArray for device available");
      return;
    }
    sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
                                     (jbyte*)&bd_addr);

    sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onDeviceAvailable,
                                 addr.get(), (jint)features);
  }

  void OnFeaturesUpdate(const RawAddress& bd_addr, uint8_t features) override {
    std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
    CallbackEnv sCallbackEnv(__func__);
    if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

    ScopedLocalRef<jbyteArray> addr(
        sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
    if (!addr.get()) {
      log::error("Failed to new bd addr jbyteArray for device available");
      return;
    }
    sCallbackEnv->SetByteArrayRegion(addr.get(), 0, sizeof(RawAddress),
                                     (jbyte*)&bd_addr);

    sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onFeaturesUpdate,
                                 addr.get(), (jint)features);
  }

  void OnActivePresetSelected(std::variant<RawAddress, int> addr_or_group_id,
                              uint8_t preset_index) override {
    std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
    CallbackEnv sCallbackEnv(__func__);
    if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

    if (std::holds_alternative<RawAddress>(addr_or_group_id)) {
      ScopedLocalRef<jbyteArray> addr(
          sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
      if (!addr.get()) {
        log::error("Failed to new bd addr jbyteArray for preset selected");
        return;
      }
      sCallbackEnv->SetByteArrayRegion(
          addr.get(), 0, sizeof(RawAddress),
          (jbyte*)&std::get<RawAddress>(addr_or_group_id));

      sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onActivePresetSelected,
                                   addr.get(), (jint)preset_index);
    } else {
      sCallbackEnv->CallVoidMethod(
          mCallbacksObj, method_onGroupActivePresetSelected,
          std::get<int>(addr_or_group_id), (jint)preset_index);
    }
  }

  void OnActivePresetSelectError(std::variant<RawAddress, int> addr_or_group_id,
                                 ErrorCode error_code) override {
    std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
    CallbackEnv sCallbackEnv(__func__);
    if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

    if (std::holds_alternative<RawAddress>(addr_or_group_id)) {
      ScopedLocalRef<jbyteArray> addr(
          sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
      if (!addr.get()) {
        log::error("Failed to new bd addr jbyteArray for preset select error");
        return;
      }
      sCallbackEnv->SetByteArrayRegion(
          addr.get(), 0, sizeof(RawAddress),
          (jbyte*)&std::get<RawAddress>(addr_or_group_id));

      sCallbackEnv->CallVoidMethod(mCallbacksObj,
                                   method_onActivePresetSelectError, addr.get(),
                                   (jint)error_code);
    } else {
      sCallbackEnv->CallVoidMethod(
          mCallbacksObj, method_onGroupActivePresetSelectError,
          std::get<int>(addr_or_group_id), (jint)error_code);
    }
  }

  void OnPresetInfo(std::variant<RawAddress, int> addr_or_group_id,
                    PresetInfoReason info_reason,
                    std::vector<PresetInfo> detail_records) override {
    std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
    CallbackEnv sCallbackEnv(__func__);
    if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

    jsize i = 0;
    jobjectArray presets_array = sCallbackEnv->NewObjectArray(
        (jsize)detail_records.size(),
        android_bluetooth_BluetoothHapPresetInfo.clazz, nullptr);

    const char null_str[] = "";
    for (auto const& info : detail_records) {
      const char* name = info.preset_name.c_str();
      if (!sCallbackEnv.isValidUtf(name)) {
        log::error("name is not a valid UTF string.");
        name = null_str;
      }

      ScopedLocalRef<jstring> name_str(sCallbackEnv.get(),
                                       sCallbackEnv->NewStringUTF(name));
      if (!name_str.get()) {
        log::error("Failed to new preset name String for preset name");
        return;
      }

      jobject infoObj = sCallbackEnv->NewObject(
          android_bluetooth_BluetoothHapPresetInfo.clazz,
          android_bluetooth_BluetoothHapPresetInfo.constructor,
          (jint)info.preset_index, name_str.get(), (jboolean)info.writable,
          (jboolean)info.available);
      sCallbackEnv->SetObjectArrayElement(presets_array, i++, infoObj);
      sCallbackEnv->DeleteLocalRef(infoObj);
    }

    if (std::holds_alternative<RawAddress>(addr_or_group_id)) {
      ScopedLocalRef<jbyteArray> addr(
          sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
      if (!addr.get()) {
        log::error("Failed to new bd addr jbyteArray for preset name");
        return;
      }
      sCallbackEnv->SetByteArrayRegion(
          addr.get(), 0, sizeof(RawAddress),
          (jbyte*)&std::get<RawAddress>(addr_or_group_id));

      sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onPresetInfo,
                                   addr.get(), (jint)info_reason,
                                   presets_array);
    } else {
      sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onGroupPresetInfo,
                                   std::get<int>(addr_or_group_id),
                                   (jint)info_reason, presets_array);
    }
  }

  virtual void OnPresetInfoError(std::variant<RawAddress, int> addr_or_group_id,
                                 uint8_t preset_index,
                                 ErrorCode error_code) override {
    std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
    CallbackEnv sCallbackEnv(__func__);
    if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

    if (std::holds_alternative<RawAddress>(addr_or_group_id)) {
      ScopedLocalRef<jbyteArray> addr(
          sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
      if (!addr.get()) {
        log::error(
            "Failed to new bd addr jbyteArray for preset name get error");
        return;
      }
      sCallbackEnv->SetByteArrayRegion(
          addr.get(), 0, sizeof(RawAddress),
          (jbyte*)&std::get<RawAddress>(addr_or_group_id));

      sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onPresetInfoError,
                                   addr.get(), (jint)preset_index,
                                   (jint)error_code);
    } else {
      sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onGroupPresetInfoError,
                                   std::get<int>(addr_or_group_id),
                                   (jint)preset_index, (jint)error_code);
    }
  }

  void OnSetPresetNameError(std::variant<RawAddress, int> addr_or_group_id,
                            uint8_t preset_index,
                            ErrorCode error_code) override {
    std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
    CallbackEnv sCallbackEnv(__func__);
    if (!sCallbackEnv.valid() || mCallbacksObj == nullptr) return;

    if (std::holds_alternative<RawAddress>(addr_or_group_id)) {
      ScopedLocalRef<jbyteArray> addr(
          sCallbackEnv.get(), sCallbackEnv->NewByteArray(sizeof(RawAddress)));
      if (!addr.get()) {
        log::error(
            "Failed to new bd addr jbyteArray for preset name set error");
        return;
      }
      sCallbackEnv->SetByteArrayRegion(
          addr.get(), 0, sizeof(RawAddress),
          (jbyte*)&std::get<RawAddress>(addr_or_group_id));

      sCallbackEnv->CallVoidMethod(mCallbacksObj, method_onPresetNameSetError,
                                   addr.get(), (jint)preset_index,
                                   (jint)error_code);
    } else {
      sCallbackEnv->CallVoidMethod(mCallbacksObj,
                                   method_onGroupPresetNameSetError,
                                   std::get<int>(addr_or_group_id),
                                   (jint)preset_index, (jint)error_code);
    }
  }
};

static HasClientCallbacksImpl sHasClientCallbacks;

static void initNative(JNIEnv* env, jobject object) {
  std::unique_lock<std::shared_timed_mutex> interface_lock(interface_mutex);
  std::unique_lock<std::shared_timed_mutex> callbacks_lock(callbacks_mutex);

  const bt_interface_t* btInf = getBluetoothInterface();
  if (btInf == nullptr) {
    log::error("Bluetooth module is not loaded");
    return;
  }

  if (sHasClientInterface != nullptr) {
    log::info("Cleaning up HearingAid Interface before initializing...");
    sHasClientInterface->Cleanup();
    sHasClientInterface = nullptr;
  }

  if (mCallbacksObj != nullptr) {
    log::info("Cleaning up HearingAid callback object");
    env->DeleteGlobalRef(mCallbacksObj);
    mCallbacksObj = nullptr;
  }

  if ((mCallbacksObj = env->NewGlobalRef(object)) == nullptr) {
    log::error("Failed to allocate Global Ref for Hearing Access Callbacks");
    return;
  }

  android_bluetooth_BluetoothHapPresetInfo.clazz = (jclass)env->NewGlobalRef(
      env->FindClass("android/bluetooth/BluetoothHapPresetInfo"));
  if (android_bluetooth_BluetoothHapPresetInfo.clazz == nullptr) {
    log::error(
        "Failed to allocate Global Ref for BluetoothHapPresetInfo class");
    return;
  }

  sHasClientInterface = (HasClientInterface*)btInf->get_profile_interface(
      BT_PROFILE_HAP_CLIENT_ID);
  if (sHasClientInterface == nullptr) {
    log::error(
        "Failed to get Bluetooth Hearing Access Service Client Interface");
    return;
  }

  sHasClientInterface->Init(&sHasClientCallbacks);
}

static void cleanupNative(JNIEnv* env, jobject /* object */) {
  std::unique_lock<std::shared_timed_mutex> interface_lock(interface_mutex);
  std::unique_lock<std::shared_timed_mutex> callbacks_lock(callbacks_mutex);

  const bt_interface_t* btInf = getBluetoothInterface();
  if (btInf == nullptr) {
    log::error("Bluetooth module is not loaded");
    return;
  }

  if (sHasClientInterface != nullptr) {
    sHasClientInterface->Cleanup();
    sHasClientInterface = nullptr;
  }

  if (mCallbacksObj != nullptr) {
    env->DeleteGlobalRef(mCallbacksObj);
    mCallbacksObj = nullptr;
  }
}

static jboolean connectHapClientNative(JNIEnv* env, jobject /* object */,
                                       jbyteArray address) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return JNI_FALSE;
  }

  jbyte* addr = env->GetByteArrayElements(address, nullptr);
  if (!addr) {
    jniThrowIOException(env, EINVAL);
    return JNI_FALSE;
  }

  RawAddress* tmpraw = (RawAddress*)addr;
  sHasClientInterface->Connect(*tmpraw);
  env->ReleaseByteArrayElements(address, addr, 0);
  return JNI_TRUE;
}

static jboolean disconnectHapClientNative(JNIEnv* env, jobject /* object */,
                                          jbyteArray address) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return JNI_FALSE;
  }

  jbyte* addr = env->GetByteArrayElements(address, nullptr);
  if (!addr) {
    jniThrowIOException(env, EINVAL);
    return JNI_FALSE;
  }

  RawAddress* tmpraw = (RawAddress*)addr;
  sHasClientInterface->Disconnect(*tmpraw);
  env->ReleaseByteArrayElements(address, addr, 0);
  return JNI_TRUE;
}

static void selectActivePresetNative(JNIEnv* env, jobject /* object */,
                                     jbyteArray address, jint preset_index) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return;
  }

  jbyte* addr = env->GetByteArrayElements(address, nullptr);
  if (!addr) {
    jniThrowIOException(env, EINVAL);
    return;
  }

  RawAddress* tmpraw = (RawAddress*)addr;
  sHasClientInterface->SelectActivePreset(*tmpraw, preset_index);
  env->ReleaseByteArrayElements(address, addr, 0);
}

static void groupSelectActivePresetNative(JNIEnv* /* env */,
                                          jobject /* object */, jint group_id,
                                          jint preset_index) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return;
  }

  sHasClientInterface->SelectActivePreset(group_id, preset_index);
}

static void nextActivePresetNative(JNIEnv* env, jobject /* object */,
                                   jbyteArray address) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return;
  }

  jbyte* addr = env->GetByteArrayElements(address, nullptr);
  if (!addr) {
    jniThrowIOException(env, EINVAL);
    return;
  }

  RawAddress* tmpraw = (RawAddress*)addr;
  sHasClientInterface->NextActivePreset(*tmpraw);
  env->ReleaseByteArrayElements(address, addr, 0);
}

static void groupNextActivePresetNative(JNIEnv* /* env */, jobject /* object */,
                                        jint group_id) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return;
  }

  sHasClientInterface->NextActivePreset(group_id);
}

static void previousActivePresetNative(JNIEnv* env, jobject /* object */,
                                       jbyteArray address) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return;
  }

  jbyte* addr = env->GetByteArrayElements(address, nullptr);
  if (!addr) {
    jniThrowIOException(env, EINVAL);
    return;
  }

  RawAddress* tmpraw = (RawAddress*)addr;
  sHasClientInterface->PreviousActivePreset(*tmpraw);
  env->ReleaseByteArrayElements(address, addr, 0);
}

static void groupPreviousActivePresetNative(JNIEnv* /* env */,
                                            jobject /* object */,
                                            jint group_id) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return;
  }

  sHasClientInterface->PreviousActivePreset(group_id);
}

static void getPresetInfoNative(JNIEnv* env, jobject /* object */,
                                jbyteArray address, jint preset_index) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return;
  }

  jbyte* addr = env->GetByteArrayElements(address, nullptr);
  if (!addr) {
    jniThrowIOException(env, EINVAL);
    return;
  }

  RawAddress* tmpraw = (RawAddress*)addr;
  sHasClientInterface->GetPresetInfo(*tmpraw, preset_index);
  env->ReleaseByteArrayElements(address, addr, 0);
}

static void setPresetNameNative(JNIEnv* env, jobject /* object */,
                                jbyteArray address, jint preset_index,
                                jstring name) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return;
  }

  jbyte* addr = env->GetByteArrayElements(address, nullptr);
  if (!addr) {
    jniThrowIOException(env, EINVAL);
    return;
  }

  std::string name_str;
  if (name != nullptr) {
    const char* value = env->GetStringUTFChars(name, nullptr);
    name_str = std::string(value);
    env->ReleaseStringUTFChars(name, value);
  }

  RawAddress* tmpraw = (RawAddress*)addr;
  sHasClientInterface->SetPresetName(*tmpraw, preset_index,
                                     std::move(name_str));
  env->ReleaseByteArrayElements(address, addr, 0);
}

static void groupSetPresetNameNative(JNIEnv* env, jobject /* object */,
                                     jint group_id, jint preset_index,
                                     jstring name) {
  std::shared_lock<std::shared_timed_mutex> lock(interface_mutex);
  if (!sHasClientInterface) {
    log::error("Failed to get the Bluetooth HAP Interface");
    return;
  }

  std::string name_str;
  if (name != nullptr) {
    const char* value = env->GetStringUTFChars(name, nullptr);
    name_str = std::string(value);
    env->ReleaseStringUTFChars(name, value);
  }

  sHasClientInterface->SetPresetName(group_id, preset_index,
                                     std::move(name_str));
}

int register_com_android_bluetooth_hap_client(JNIEnv* env) {
  const JNINativeMethod methods[] = {
      {"initNative", "()V", (void*)initNative},
      {"cleanupNative", "()V", (void*)cleanupNative},
      {"connectHapClientNative", "([B)Z", (void*)connectHapClientNative},
      {"disconnectHapClientNative", "([B)Z", (void*)disconnectHapClientNative},
      {"selectActivePresetNative", "([BI)V", (void*)selectActivePresetNative},
      {"groupSelectActivePresetNative", "(II)V",
       (void*)groupSelectActivePresetNative},
      {"nextActivePresetNative", "([B)V", (void*)nextActivePresetNative},
      {"groupNextActivePresetNative", "(I)V",
       (void*)groupNextActivePresetNative},
      {"previousActivePresetNative", "([B)V",
       (void*)previousActivePresetNative},
      {"groupPreviousActivePresetNative", "(I)V",
       (void*)groupPreviousActivePresetNative},
      {"getPresetInfoNative", "([BI)V", (void*)getPresetInfoNative},
      {"setPresetNameNative", "([BILjava/lang/String;)V",
       (void*)setPresetNameNative},
      {"groupSetPresetNameNative", "(IILjava/lang/String;)V",
       (void*)groupSetPresetNameNative},
  };
  const int result = REGISTER_NATIVE_METHODS(
      env, "com/android/bluetooth/hap/HapClientNativeInterface", methods);
  if (result != 0) {
    return result;
  }

  const JNIJavaMethod javaMethods[] = {
      {"onConnectionStateChanged", "(I[B)V", &method_onConnectionStateChanged},
      {"onDeviceAvailable", "([BI)V", &method_onDeviceAvailable},
      {"onFeaturesUpdate", "([BI)V", &method_onFeaturesUpdate},
      {"onActivePresetSelected", "([BI)V", &method_onActivePresetSelected},
      {"onActivePresetGroupSelected", "(II)V",
       &method_onGroupActivePresetSelected},
      {"onActivePresetSelectError", "([BI)V",
       &method_onActivePresetSelectError},
      {"onActivePresetGroupSelectError", "(II)V",
       &method_onGroupActivePresetSelectError},
      {"onPresetInfo", "([BI[Landroid/bluetooth/BluetoothHapPresetInfo;)V",
       &method_onPresetInfo},
      {"onGroupPresetInfo", "(II[Landroid/bluetooth/BluetoothHapPresetInfo;)V",
       &method_onGroupPresetInfo},
      {"onPresetNameSetError", "([BII)V", &method_onPresetNameSetError},
      {"onGroupPresetNameSetError", "(III)V",
       &method_onGroupPresetNameSetError},
      {"onPresetInfoError", "([BII)V", &method_onPresetInfoError},
      {"onGroupPresetInfoError", "(III)V", &method_onGroupPresetInfoError},
  };
  GET_JAVA_METHODS(env, "com/android/bluetooth/hap/HapClientNativeInterface",
                   javaMethods);

  const JNIJavaMethod javaHapPresetMethods[] = {
      {"<init>", "(ILjava/lang/String;ZZ)V",
       &android_bluetooth_BluetoothHapPresetInfo.constructor},
  };
  GET_JAVA_METHODS(env, "android/bluetooth/BluetoothHapPresetInfo",
                   javaHapPresetMethods);

  return 0;
}
}  // namespace android