src/platform/android/BLEManagerImpl.cpp - third_party/github/project-chip/connectedhomeip - Git at Google

 /*
  *
  *    Copyright (c) 2020-2021 Project CHIP Authors
  *    Copyright (c) 2018 Nest Labs, Inc.
  *
  *    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.
  */

 /**
  *    @file
  *          Provides an implementation of the BLEManager singleton object
  *          for Linux platforms.
  */
 #include <platform/internal/CHIPDeviceLayerInternal.h>

 #include <ble/Ble.h>
 #include <lib/support/CHIPJNIError.h>
 #include <lib/support/CodeUtils.h>
 #include <lib/support/JniReferences.h>
 #include <lib/support/SafeInt.h>
 #include <platform/internal/BLEManager.h>

 #if CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE

 using namespace chip;
 using namespace ::nl;
 using namespace ::chip::Ble;

 namespace chip {
 namespace DeviceLayer {
 namespace Internal {

 namespace {} // namespace

 BLEManagerImpl BLEManagerImpl::sInstance;

 CHIP_ERROR BLEManagerImpl::ConfigureBle(uint32_t aAdapterId, bool aIsCentral)
 {
     return CHIP_ERROR_NOT_IMPLEMENTED;
 }

 void BLEManagerImpl::InitializeWithObject(jobject manager)
 {
     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     VerifyOrReturn(env != nullptr, ChipLogError(DeviceLayer, "Failed to GetEnvForCurrentThread for BLEManager"));

     VerifyOrReturn(mBLEManagerObject.Init(manager) == CHIP_NO_ERROR, ChipLogError(DeviceLayer, "Failed to Init BLEManager"));

     jclass BLEManagerClass = env->GetObjectClass(manager);
     VerifyOrReturn(BLEManagerClass != nullptr, ChipLogError(DeviceLayer, "Failed to get BLEManager Java class"));

     mInitMethod = env->GetMethodID(BLEManagerClass, "init", "()I");
     if (mInitMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'init' method");
         env->ExceptionClear();
     }

     mSetFlagMethod = env->GetMethodID(BLEManagerClass, "setFlag", "(JZ)J");
     if (mSetFlagMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'setFlag' method");
         env->ExceptionClear();
     }

     mHasFlagMethod = env->GetMethodID(BLEManagerClass, "hasFlag", "(J)Z");
     if (mHasFlagMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'hasFlag' method");
         env->ExceptionClear();
     }

     mOnSubscribeCharacteristicMethod = env->GetMethodID(BLEManagerClass, "onSubscribeCharacteristic", "(I[B[B)Z");
     if (mOnSubscribeCharacteristicMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'onSubscribeCharacteristic' method");
         env->ExceptionClear();
     }

     mOnUnsubscribeCharacteristicMethod = env->GetMethodID(BLEManagerClass, "onUnsubscribeCharacteristic", "(I[B[B)Z");
     if (mOnUnsubscribeCharacteristicMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'onUnsubscribeCharacteristic' method");
         env->ExceptionClear();
     }

     mOnCloseConnectionMethod = env->GetMethodID(BLEManagerClass, "onCloseConnection", "(I)Z");
     if (mOnCloseConnectionMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'onCloseConnection' method");
         env->ExceptionClear();
     }

     mOnGetMTUMethod = env->GetMethodID(BLEManagerClass, "onGetMTU", "(I)I");
     if (mOnGetMTUMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'onGetMTU' method");
         env->ExceptionClear();
     }

     mOnSendWriteRequestMethod = env->GetMethodID(BLEManagerClass, "onSendWriteRequest", "(I[B[B[B)Z");
     if (mOnSendWriteRequestMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'onSendWriteRequest' method");
         env->ExceptionClear();
     }

     mOnNotifyChipConnectionClosedMethod = env->GetMethodID(BLEManagerClass, "onNotifyChipConnectionClosed", "(I)V");
     if (mOnNotifyChipConnectionClosedMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'onNotifyChipConnectionClosed' method");
         env->ExceptionClear();
     }

     mOnNewConnectionMethod = env->GetMethodID(BLEManagerClass, "onNewConnection", "(IZJJ)V");
     if (mOnNewConnectionMethod == nullptr)
     {
         ChipLogError(DeviceLayer, "Failed to access BLEManager 'onNewConnection' method");
         env->ExceptionClear();
     }
 }

 // ===== start impl of BLEManager internal interface, ref BLEManager.h

 CHIP_ERROR BLEManagerImpl::_Init()
 {
     CHIP_ERROR err;

     // SystemLayer is defined in platform::Globals.cpp
     err = BleLayer::Init(this, this, this, &DeviceLayer::SystemLayer());
     ReturnLogErrorOnFailure(err);

     VerifyOrReturnLogError(mBLEManagerObject.HasValidObjectRef(), CHIP_ERROR_INCORRECT_STATE);
     VerifyOrReturnLogError(mInitMethod != nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     VerifyOrReturnLogError(env != nullptr, CHIP_JNI_ERROR_NO_ENV);

     jint ret = env->CallIntMethod(mBLEManagerObject.ObjectRef(), mInitMethod);
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in BLEManager::init");
         env->ExceptionDescribe();
         return CHIP_JNI_ERROR_EXCEPTION_THROWN;
     }
     VerifyOrReturnLogError(ret == 0, CHIP_JNI_ERROR_JAVA_ERROR);

     return err;
 }

 bool BLEManagerImpl::_IsAdvertisingEnabled()
 {
     bool has       = false;
     CHIP_ERROR err = HasFlag(Flags::kAdvertisingEnabled, has);

     VerifyOrReturnError(err == CHIP_NO_ERROR, false);
     return has;
 }

 CHIP_ERROR BLEManagerImpl::_SetAdvertisingEnabled(bool val)
 {
     return SetFlag(Flags::kAdvertisingEnabled, val);
 }

 bool BLEManagerImpl::_IsAdvertising()
 {
     bool has       = false;
     CHIP_ERROR err = HasFlag(Flags::kAdvertising, has);

     VerifyOrReturnError(err == CHIP_NO_ERROR, false);
     return has;
 }

 CHIP_ERROR BLEManagerImpl::_SetAdvertisingMode(BLEAdvertisingMode mode)
 {
     ChipLogDetail(DeviceLayer, "%s, %u", __FUNCTION__, static_cast<uint8_t>(mode));
     return CHIP_ERROR_NOT_IMPLEMENTED;
 }

 CHIP_ERROR BLEManagerImpl::_GetDeviceName(char * buf, size_t bufSize)
 {
     ChipLogDetail(DeviceLayer, "%s, %s", __FUNCTION__, buf);
     return CHIP_ERROR_NOT_IMPLEMENTED;
 }

 CHIP_ERROR BLEManagerImpl::_SetDeviceName(const char * deviceName)
 {
     ChipLogDetail(DeviceLayer, "%s, %s", __FUNCTION__, deviceName);
     return CHIP_ERROR_NOT_IMPLEMENTED;
 }

 uint16_t BLEManagerImpl::_NumConnections()
 {
     uint16_t numCons = 0;
     return numCons;
 }

 void BLEManagerImpl::_OnPlatformEvent(const ChipDeviceEvent * event)
 {
     ChipLogDetail(DeviceLayer, "%s", __FUNCTION__);
 }

 BleLayer * BLEManagerImpl::_GetBleLayer()
 {
     return this;
 }
 // ===== end impl of BLEManager internal interface

 // ===== start implement virtual methods on BlePlatformDelegate.

 CHIP_ERROR BLEManagerImpl::SubscribeCharacteristic(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId,
                                                    const ChipBleUUID * charId)
 {
     chip::DeviceLayer::StackUnlock unlock;
     CHIP_ERROR err = CHIP_NO_ERROR;
     JNIEnv * env   = JniReferences::GetInstance().GetEnvForCurrentThread();
     jbyteArray svcIdObj;
     jbyteArray charIdObj;
     intptr_t tmpConnObj;

     ChipLogProgress(DeviceLayer, "Received SubscribeCharacteristic");

     VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(mOnSubscribeCharacteristicMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

     err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(svcId->bytes), 16, svcIdObj);
     SuccessOrExit(err);

     err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(charId->bytes), 16, charIdObj);
     SuccessOrExit(err);

     env->ExceptionClear();
     tmpConnObj = reinterpret_cast<intptr_t>(conId);
     VerifyOrExit(env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mOnSubscribeCharacteristicMethod,
                                         static_cast<jint>(tmpConnObj), svcIdObj, charIdObj),
                  err = BLE_ERROR_GATT_SUBSCRIBE_FAILED);
     VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

 exit:
     if (err != CHIP_NO_ERROR)
     {
         JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
     }
     env->ExceptionClear();

     return err;
 }

 CHIP_ERROR BLEManagerImpl::UnsubscribeCharacteristic(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId,
                                                      const ChipBleUUID * charId)
 {
     chip::DeviceLayer::StackUnlock unlock;
     CHIP_ERROR err = CHIP_NO_ERROR;
     JNIEnv * env   = JniReferences::GetInstance().GetEnvForCurrentThread();
     jbyteArray svcIdObj;
     jbyteArray charIdObj;
     intptr_t tmpConnObj;

     ChipLogProgress(DeviceLayer, "Received UnsubscribeCharacteristic");

     VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(mOnUnsubscribeCharacteristicMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

     err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(svcId->bytes), 16, svcIdObj);
     SuccessOrExit(err);

     err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(charId->bytes), 16, charIdObj);
     SuccessOrExit(err);

     env->ExceptionClear();
     tmpConnObj = reinterpret_cast<intptr_t>(conId);
     VerifyOrExit(env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mOnUnsubscribeCharacteristicMethod,
                                         static_cast<jint>(tmpConnObj), svcIdObj, charIdObj),
                  err = BLE_ERROR_GATT_UNSUBSCRIBE_FAILED);
     VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

 exit:
     if (err != CHIP_NO_ERROR)
     {
         JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
     }
     env->ExceptionClear();

     return err;
 }

 CHIP_ERROR BLEManagerImpl::CloseConnection(BLE_CONNECTION_OBJECT conId)
 {
     chip::DeviceLayer::StackUnlock unlock;
     CHIP_ERROR err = CHIP_NO_ERROR;
     JNIEnv * env   = JniReferences::GetInstance().GetEnvForCurrentThread();
     intptr_t tmpConnObj;

     ChipLogProgress(DeviceLayer, "Received CloseConnection");

     VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(mOnCloseConnectionMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

     env->ExceptionClear();
     tmpConnObj = reinterpret_cast<intptr_t>(conId);
     VerifyOrExit(env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mOnCloseConnectionMethod, static_cast<jint>(tmpConnObj)),
                  err = CHIP_ERROR_INTERNAL);
     VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

 exit:
     if (err != CHIP_NO_ERROR)
     {
         JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
     }
     env->ExceptionClear();
     return err;
 }

 uint16_t BLEManagerImpl::GetMTU(BLE_CONNECTION_OBJECT conId) const
 {
     chip::DeviceLayer::StackUnlock unlock;
     CHIP_ERROR err = CHIP_NO_ERROR;
     JNIEnv * env   = JniReferences::GetInstance().GetEnvForCurrentThread();
     intptr_t tmpConnObj;
     uint16_t mtu = 0;

     ChipLogProgress(DeviceLayer, "Received GetMTU");
     VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(mOnGetMTUMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);
     ;

     env->ExceptionClear();
     tmpConnObj = reinterpret_cast<intptr_t>(conId);
     mtu        = (int16_t) env->CallIntMethod(mBLEManagerObject.ObjectRef(), mOnGetMTUMethod, static_cast<jint>(tmpConnObj));
     VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

 exit:
     if (err != CHIP_NO_ERROR)
     {
         JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
         mtu = 0;
     }
     env->ExceptionClear();

     return mtu;
 }

 CHIP_ERROR BLEManagerImpl::SendIndication(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId, const Ble::ChipBleUUID * charId,
                                           chip::System::PacketBufferHandle pBuf)
 {
     return CHIP_ERROR_NOT_IMPLEMENTED;
 }

 CHIP_ERROR BLEManagerImpl::SendWriteRequest(BLE_CONNECTION_OBJECT conId, const Ble::ChipBleUUID * svcId,
                                             const Ble::ChipBleUUID * charId, chip::System::PacketBufferHandle pBuf)
 {
     chip::DeviceLayer::StackUnlock unlock;
     CHIP_ERROR err = CHIP_NO_ERROR;
     JNIEnv * env   = JniReferences::GetInstance().GetEnvForCurrentThread();
     jbyteArray svcIdObj;
     jbyteArray charIdObj;
     jbyteArray characteristicDataObj;
     intptr_t tmpConnObj;

     ChipLogProgress(DeviceLayer, "Received SendWriteRequest");
     VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(mOnSendWriteRequestMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

     err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(svcId->bytes), 16, svcIdObj);
     SuccessOrExit(err);

     err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(charId->bytes), 16, charIdObj);
     SuccessOrExit(err);

     VerifyOrExit(CanCastTo<uint16_t>(pBuf->DataLength()), err = CHIP_ERROR_MESSAGE_TOO_LONG);
     err = JniReferences::GetInstance().N2J_ByteArray(env, pBuf->Start(), static_cast<uint16_t>(pBuf->DataLength()),
                                                      characteristicDataObj);
     SuccessOrExit(err);

     env->ExceptionClear();
     tmpConnObj = reinterpret_cast<intptr_t>(conId);
     VerifyOrExit(env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mOnSendWriteRequestMethod, static_cast<jint>(tmpConnObj),
                                         svcIdObj, charIdObj, characteristicDataObj),
                  err = BLE_ERROR_GATT_WRITE_FAILED);
     VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

 exit:
     if (err != CHIP_NO_ERROR)
     {
         JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
     }
     env->ExceptionClear();

     return err;
 }

 // ===== end implement virtual methods on BlePlatformDelegate.

 // ===== start implement virtual methods on BleApplicationDelegate.

 void BLEManagerImpl::NotifyChipConnectionClosed(BLE_CONNECTION_OBJECT conId)
 {
     chip::DeviceLayer::StackUnlock unlock;
     CHIP_ERROR err = CHIP_NO_ERROR;
     JNIEnv * env   = JniReferences::GetInstance().GetEnvForCurrentThread();
     intptr_t tmpConnObj;

     ChipLogProgress(DeviceLayer, "Received NotifyChipConnectionClosed");
     VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(mOnNotifyChipConnectionClosedMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

     env->ExceptionClear();
     tmpConnObj = reinterpret_cast<intptr_t>(conId);
     env->CallVoidMethod(mBLEManagerObject.ObjectRef(), mOnNotifyChipConnectionClosedMethod, static_cast<jint>(tmpConnObj));
     VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

 exit:
     if (err != CHIP_NO_ERROR)
     {
         JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
     }
     env->ExceptionClear();
 }

 // ===== start implement virtual methods on BleConnectionDelegate.

 void BLEManagerImpl::OnConnectSuccess(void * appState, BLE_CONNECTION_OBJECT connObj)
 {
     chip::DeviceLayer::StackLock lock;
     BleConnectionDelegate::OnConnectionComplete(appState, connObj);
 }

 void BLEManagerImpl::OnConnectFailed(void * appState, CHIP_ERROR err)
 {
     chip::DeviceLayer::StackLock lock;
     BleConnectionDelegate::OnConnectionError(appState, err);
 }

 void BLEManagerImpl::NewConnection(BleLayer * bleLayer, void * appState, const SetupDiscriminator & connDiscriminator)
 {
     chip::DeviceLayer::StackUnlock unlock;
     CHIP_ERROR err = CHIP_NO_ERROR;
     JNIEnv * env   = JniReferences::GetInstance().GetEnvForCurrentThread();

     ChipLogProgress(Controller, "Received New Connection");
     VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(mOnNewConnectionMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
     VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

     env->ExceptionClear();
     // TODO: The API we have here does not handle short discriminators in any
     // sane way.  Just do what we used to do, which is pretend that a short
     // discriminator is actually a long discriminator with the low bits all 0.
     uint16_t discriminator;
     if (connDiscriminator.IsShortDiscriminator())
     {
         discriminator = static_cast<uint16_t>(connDiscriminator.GetShortValue())
             << (SetupDiscriminator::kLongBits - SetupDiscriminator::kShortBits);
     }
     else
     {
         discriminator = connDiscriminator.GetLongValue();
     }

     env->CallVoidMethod(mBLEManagerObject.ObjectRef(), mOnNewConnectionMethod, static_cast<jint>(discriminator),
                         static_cast<jboolean>(connDiscriminator.IsShortDiscriminator()), reinterpret_cast<jlong>(this),
                         reinterpret_cast<jlong>(appState));
     VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

 exit:
     if (err != CHIP_NO_ERROR)
     {
         JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
     }
     env->ExceptionClear();
 }

 CHIP_ERROR BLEManagerImpl::CancelConnection()
 {
     return CHIP_ERROR_NOT_IMPLEMENTED;
 }

 // ===== end implement virtual methods on BleConnectionDelegate.

 //== helpers

 CHIP_ERROR BLEManagerImpl::HasFlag(BLEManagerImpl::Flags flag, bool & has)
 {
     chip::DeviceLayer::StackUnlock unlock;
     jlong f = static_cast<jlong>(flag);

     VerifyOrReturnLogError(mBLEManagerObject.HasValidObjectRef(), CHIP_ERROR_INCORRECT_STATE);
     VerifyOrReturnLogError(mHasFlagMethod != nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     VerifyOrReturnLogError(env != nullptr, CHIP_JNI_ERROR_NO_ENV);

     jboolean jret = env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mHasFlagMethod, f);
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in BLEManager::hasFlag");
         env->ExceptionDescribe();
         return CHIP_JNI_ERROR_EXCEPTION_THROWN;
     }

     has = static_cast<bool>(jret);
     return CHIP_NO_ERROR;
 }

 CHIP_ERROR BLEManagerImpl::SetFlag(BLEManagerImpl::Flags flag, bool isSet)
 {
     chip::DeviceLayer::StackUnlock unlock;
     jlong jFlag     = static_cast<jlong>(flag);
     jboolean jIsSet = static_cast<jboolean>(isSet);

     VerifyOrReturnLogError(mBLEManagerObject.HasValidObjectRef(), CHIP_ERROR_INCORRECT_STATE);
     VerifyOrReturnLogError(mSetFlagMethod != nullptr, CHIP_ERROR_INCORRECT_STATE);

     JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
     VerifyOrReturnLogError(env != nullptr, CHIP_JNI_ERROR_NO_ENV);

     env->CallLongMethod(mBLEManagerObject.ObjectRef(), mSetFlagMethod, jFlag, jIsSet);
     if (env->ExceptionCheck())
     {
         ChipLogError(DeviceLayer, "Java exception in BLEManager::satFlag");
         env->ExceptionDescribe();
         return CHIP_JNI_ERROR_EXCEPTION_THROWN;
     }

     return CHIP_NO_ERROR;
 }

 } // namespace Internal
 } // namespace DeviceLayer
 } // namespace chip

 #endif // CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE
	/*
	*
	* Copyright (c) 2020-2021 Project CHIP Authors
	* Copyright (c) 2018 Nest Labs, Inc.
	*
	* 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.
	*/

	/**
	* @file
	* Provides an implementation of the BLEManager singleton object
	* for Linux platforms.
	*/
	#include <platform/internal/CHIPDeviceLayerInternal.h>

	#include <ble/Ble.h>
	#include <lib/support/CHIPJNIError.h>
	#include <lib/support/CodeUtils.h>
	#include <lib/support/JniReferences.h>
	#include <lib/support/SafeInt.h>
	#include <platform/internal/BLEManager.h>

	#if CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE

	using namespace chip;
	using namespace ::nl;
	using namespace ::chip::Ble;

	namespace chip {
	namespace DeviceLayer {
	namespace Internal {

	namespace {} // namespace

	BLEManagerImpl BLEManagerImpl::sInstance;

	CHIP_ERROR BLEManagerImpl::ConfigureBle(uint32_t aAdapterId, bool aIsCentral)
	{
	return CHIP_ERROR_NOT_IMPLEMENTED;
	}

	void BLEManagerImpl::InitializeWithObject(jobject manager)
	{
	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	VerifyOrReturn(env != nullptr, ChipLogError(DeviceLayer, "Failed to GetEnvForCurrentThread for BLEManager"));

	VerifyOrReturn(mBLEManagerObject.Init(manager) == CHIP_NO_ERROR, ChipLogError(DeviceLayer, "Failed to Init BLEManager"));

	jclass BLEManagerClass = env->GetObjectClass(manager);
	VerifyOrReturn(BLEManagerClass != nullptr, ChipLogError(DeviceLayer, "Failed to get BLEManager Java class"));

	mInitMethod = env->GetMethodID(BLEManagerClass, "init", "()I");
	if (mInitMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'init' method");
	env->ExceptionClear();
	}

	mSetFlagMethod = env->GetMethodID(BLEManagerClass, "setFlag", "(JZ)J");
	if (mSetFlagMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'setFlag' method");
	env->ExceptionClear();
	}

	mHasFlagMethod = env->GetMethodID(BLEManagerClass, "hasFlag", "(J)Z");
	if (mHasFlagMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'hasFlag' method");
	env->ExceptionClear();
	}

	mOnSubscribeCharacteristicMethod = env->GetMethodID(BLEManagerClass, "onSubscribeCharacteristic", "(I[B[B)Z");
	if (mOnSubscribeCharacteristicMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'onSubscribeCharacteristic' method");
	env->ExceptionClear();
	}

	mOnUnsubscribeCharacteristicMethod = env->GetMethodID(BLEManagerClass, "onUnsubscribeCharacteristic", "(I[B[B)Z");
	if (mOnUnsubscribeCharacteristicMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'onUnsubscribeCharacteristic' method");
	env->ExceptionClear();
	}

	mOnCloseConnectionMethod = env->GetMethodID(BLEManagerClass, "onCloseConnection", "(I)Z");
	if (mOnCloseConnectionMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'onCloseConnection' method");
	env->ExceptionClear();
	}

	mOnGetMTUMethod = env->GetMethodID(BLEManagerClass, "onGetMTU", "(I)I");
	if (mOnGetMTUMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'onGetMTU' method");
	env->ExceptionClear();
	}

	mOnSendWriteRequestMethod = env->GetMethodID(BLEManagerClass, "onSendWriteRequest", "(I[B[B[B)Z");
	if (mOnSendWriteRequestMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'onSendWriteRequest' method");
	env->ExceptionClear();
	}

	mOnNotifyChipConnectionClosedMethod = env->GetMethodID(BLEManagerClass, "onNotifyChipConnectionClosed", "(I)V");
	if (mOnNotifyChipConnectionClosedMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'onNotifyChipConnectionClosed' method");
	env->ExceptionClear();
	}

	mOnNewConnectionMethod = env->GetMethodID(BLEManagerClass, "onNewConnection", "(IZJJ)V");
	if (mOnNewConnectionMethod == nullptr)
	{
	ChipLogError(DeviceLayer, "Failed to access BLEManager 'onNewConnection' method");
	env->ExceptionClear();
	}
	}

	// ===== start impl of BLEManager internal interface, ref BLEManager.h

	CHIP_ERROR BLEManagerImpl::_Init()
	{
	CHIP_ERROR err;

	// SystemLayer is defined in platform::Globals.cpp
	err = BleLayer::Init(this, this, this, &DeviceLayer::SystemLayer());
	ReturnLogErrorOnFailure(err);

	VerifyOrReturnLogError(mBLEManagerObject.HasValidObjectRef(), CHIP_ERROR_INCORRECT_STATE);
	VerifyOrReturnLogError(mInitMethod != nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	VerifyOrReturnLogError(env != nullptr, CHIP_JNI_ERROR_NO_ENV);

	jint ret = env->CallIntMethod(mBLEManagerObject.ObjectRef(), mInitMethod);
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in BLEManager::init");
	env->ExceptionDescribe();
	return CHIP_JNI_ERROR_EXCEPTION_THROWN;
	}
	VerifyOrReturnLogError(ret == 0, CHIP_JNI_ERROR_JAVA_ERROR);

	return err;
	}

	bool BLEManagerImpl::_IsAdvertisingEnabled()
	{
	bool has = false;
	CHIP_ERROR err = HasFlag(Flags::kAdvertisingEnabled, has);

	VerifyOrReturnError(err == CHIP_NO_ERROR, false);
	return has;
	}

	CHIP_ERROR BLEManagerImpl::_SetAdvertisingEnabled(bool val)
	{
	return SetFlag(Flags::kAdvertisingEnabled, val);
	}

	bool BLEManagerImpl::_IsAdvertising()
	{
	bool has = false;
	CHIP_ERROR err = HasFlag(Flags::kAdvertising, has);

	VerifyOrReturnError(err == CHIP_NO_ERROR, false);
	return has;
	}

	CHIP_ERROR BLEManagerImpl::_SetAdvertisingMode(BLEAdvertisingMode mode)
	{
	ChipLogDetail(DeviceLayer, "%s, %u", __FUNCTION__, static_cast<uint8_t>(mode));
	return CHIP_ERROR_NOT_IMPLEMENTED;
	}

	CHIP_ERROR BLEManagerImpl::_GetDeviceName(char * buf, size_t bufSize)
	{
	ChipLogDetail(DeviceLayer, "%s, %s", __FUNCTION__, buf);
	return CHIP_ERROR_NOT_IMPLEMENTED;
	}

	CHIP_ERROR BLEManagerImpl::_SetDeviceName(const char * deviceName)
	{
	ChipLogDetail(DeviceLayer, "%s, %s", __FUNCTION__, deviceName);
	return CHIP_ERROR_NOT_IMPLEMENTED;
	}

	uint16_t BLEManagerImpl::_NumConnections()
	{
	uint16_t numCons = 0;
	return numCons;
	}

	void BLEManagerImpl::_OnPlatformEvent(const ChipDeviceEvent * event)
	{
	ChipLogDetail(DeviceLayer, "%s", __FUNCTION__);
	}

	BleLayer * BLEManagerImpl::_GetBleLayer()
	{
	return this;
	}
	// ===== end impl of BLEManager internal interface

	// ===== start implement virtual methods on BlePlatformDelegate.

	CHIP_ERROR BLEManagerImpl::SubscribeCharacteristic(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId,
	const ChipBleUUID * charId)
	{
	chip::DeviceLayer::StackUnlock unlock;
	CHIP_ERROR err = CHIP_NO_ERROR;
	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	jbyteArray svcIdObj;
	jbyteArray charIdObj;
	intptr_t tmpConnObj;

	ChipLogProgress(DeviceLayer, "Received SubscribeCharacteristic");

	VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(mOnSubscribeCharacteristicMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

	err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(svcId->bytes), 16, svcIdObj);
	SuccessOrExit(err);

	err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(charId->bytes), 16, charIdObj);
	SuccessOrExit(err);

	env->ExceptionClear();
	tmpConnObj = reinterpret_cast<intptr_t>(conId);
	VerifyOrExit(env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mOnSubscribeCharacteristicMethod,
	static_cast<jint>(tmpConnObj), svcIdObj, charIdObj),
	err = BLE_ERROR_GATT_SUBSCRIBE_FAILED);
	VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

	exit:
	if (err != CHIP_NO_ERROR)
	{
	JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
	}
	env->ExceptionClear();

	return err;
	}

	CHIP_ERROR BLEManagerImpl::UnsubscribeCharacteristic(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId,
	const ChipBleUUID * charId)
	{
	chip::DeviceLayer::StackUnlock unlock;
	CHIP_ERROR err = CHIP_NO_ERROR;
	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	jbyteArray svcIdObj;
	jbyteArray charIdObj;
	intptr_t tmpConnObj;

	ChipLogProgress(DeviceLayer, "Received UnsubscribeCharacteristic");

	VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(mOnUnsubscribeCharacteristicMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

	err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(svcId->bytes), 16, svcIdObj);
	SuccessOrExit(err);

	err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(charId->bytes), 16, charIdObj);
	SuccessOrExit(err);

	env->ExceptionClear();
	tmpConnObj = reinterpret_cast<intptr_t>(conId);
	VerifyOrExit(env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mOnUnsubscribeCharacteristicMethod,
	static_cast<jint>(tmpConnObj), svcIdObj, charIdObj),
	err = BLE_ERROR_GATT_UNSUBSCRIBE_FAILED);
	VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

	exit:
	if (err != CHIP_NO_ERROR)
	{
	JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
	}
	env->ExceptionClear();

	return err;
	}

	CHIP_ERROR BLEManagerImpl::CloseConnection(BLE_CONNECTION_OBJECT conId)
	{
	chip::DeviceLayer::StackUnlock unlock;
	CHIP_ERROR err = CHIP_NO_ERROR;
	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	intptr_t tmpConnObj;

	ChipLogProgress(DeviceLayer, "Received CloseConnection");

	VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(mOnCloseConnectionMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

	env->ExceptionClear();
	tmpConnObj = reinterpret_cast<intptr_t>(conId);
	VerifyOrExit(env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mOnCloseConnectionMethod, static_cast<jint>(tmpConnObj)),
	err = CHIP_ERROR_INTERNAL);
	VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

	exit:
	if (err != CHIP_NO_ERROR)
	{
	JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
	}
	env->ExceptionClear();
	return err;
	}

	uint16_t BLEManagerImpl::GetMTU(BLE_CONNECTION_OBJECT conId) const
	{
	chip::DeviceLayer::StackUnlock unlock;
	CHIP_ERROR err = CHIP_NO_ERROR;
	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	intptr_t tmpConnObj;
	uint16_t mtu = 0;

	ChipLogProgress(DeviceLayer, "Received GetMTU");
	VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(mOnGetMTUMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);
	;

	env->ExceptionClear();
	tmpConnObj = reinterpret_cast<intptr_t>(conId);
	mtu = (int16_t) env->CallIntMethod(mBLEManagerObject.ObjectRef(), mOnGetMTUMethod, static_cast<jint>(tmpConnObj));
	VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

	exit:
	if (err != CHIP_NO_ERROR)
	{
	JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
	mtu = 0;
	}
	env->ExceptionClear();

	return mtu;
	}

	CHIP_ERROR BLEManagerImpl::SendIndication(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId, const Ble::ChipBleUUID * charId,
	chip::System::PacketBufferHandle pBuf)
	{
	return CHIP_ERROR_NOT_IMPLEMENTED;
	}

	CHIP_ERROR BLEManagerImpl::SendWriteRequest(BLE_CONNECTION_OBJECT conId, const Ble::ChipBleUUID * svcId,
	const Ble::ChipBleUUID * charId, chip::System::PacketBufferHandle pBuf)
	{
	chip::DeviceLayer::StackUnlock unlock;
	CHIP_ERROR err = CHIP_NO_ERROR;
	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	jbyteArray svcIdObj;
	jbyteArray charIdObj;
	jbyteArray characteristicDataObj;
	intptr_t tmpConnObj;

	ChipLogProgress(DeviceLayer, "Received SendWriteRequest");
	VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(mOnSendWriteRequestMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

	err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(svcId->bytes), 16, svcIdObj);
	SuccessOrExit(err);

	err = JniReferences::GetInstance().N2J_ByteArray(env, static_cast<const uint8_t *>(charId->bytes), 16, charIdObj);
	SuccessOrExit(err);

	VerifyOrExit(CanCastTo<uint16_t>(pBuf->DataLength()), err = CHIP_ERROR_MESSAGE_TOO_LONG);
	err = JniReferences::GetInstance().N2J_ByteArray(env, pBuf->Start(), static_cast<uint16_t>(pBuf->DataLength()),
	characteristicDataObj);
	SuccessOrExit(err);

	env->ExceptionClear();
	tmpConnObj = reinterpret_cast<intptr_t>(conId);
	VerifyOrExit(env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mOnSendWriteRequestMethod, static_cast<jint>(tmpConnObj),
	svcIdObj, charIdObj, characteristicDataObj),
	err = BLE_ERROR_GATT_WRITE_FAILED);
	VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

	exit:
	if (err != CHIP_NO_ERROR)
	{
	JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
	}
	env->ExceptionClear();

	return err;
	}

	// ===== end implement virtual methods on BlePlatformDelegate.

	// ===== start implement virtual methods on BleApplicationDelegate.

	void BLEManagerImpl::NotifyChipConnectionClosed(BLE_CONNECTION_OBJECT conId)
	{
	chip::DeviceLayer::StackUnlock unlock;
	CHIP_ERROR err = CHIP_NO_ERROR;
	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	intptr_t tmpConnObj;

	ChipLogProgress(DeviceLayer, "Received NotifyChipConnectionClosed");
	VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(mOnNotifyChipConnectionClosedMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

	env->ExceptionClear();
	tmpConnObj = reinterpret_cast<intptr_t>(conId);
	env->CallVoidMethod(mBLEManagerObject.ObjectRef(), mOnNotifyChipConnectionClosedMethod, static_cast<jint>(tmpConnObj));
	VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

	exit:
	if (err != CHIP_NO_ERROR)
	{
	JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
	}
	env->ExceptionClear();
	}

	// ===== start implement virtual methods on BleConnectionDelegate.

	void BLEManagerImpl::OnConnectSuccess(void * appState, BLE_CONNECTION_OBJECT connObj)
	{
	chip::DeviceLayer::StackLock lock;
	BleConnectionDelegate::OnConnectionComplete(appState, connObj);
	}

	void BLEManagerImpl::OnConnectFailed(void * appState, CHIP_ERROR err)
	{
	chip::DeviceLayer::StackLock lock;
	BleConnectionDelegate::OnConnectionError(appState, err);
	}

	void BLEManagerImpl::NewConnection(BleLayer * bleLayer, void * appState, const SetupDiscriminator & connDiscriminator)
	{
	chip::DeviceLayer::StackUnlock unlock;
	CHIP_ERROR err = CHIP_NO_ERROR;
	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();

	ChipLogProgress(Controller, "Received New Connection");
	VerifyOrExit(mBLEManagerObject.HasValidObjectRef(), err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(mOnNewConnectionMethod != nullptr, err = CHIP_ERROR_INCORRECT_STATE);
	VerifyOrExit(env != NULL, err = CHIP_JNI_ERROR_NO_ENV);

	env->ExceptionClear();
	// TODO: The API we have here does not handle short discriminators in any
	// sane way. Just do what we used to do, which is pretend that a short
	// discriminator is actually a long discriminator with the low bits all 0.
	uint16_t discriminator;
	if (connDiscriminator.IsShortDiscriminator())
	{
	discriminator = static_cast<uint16_t>(connDiscriminator.GetShortValue())
	<< (SetupDiscriminator::kLongBits - SetupDiscriminator::kShortBits);
	}
	else
	{
	discriminator = connDiscriminator.GetLongValue();
	}

	env->CallVoidMethod(mBLEManagerObject.ObjectRef(), mOnNewConnectionMethod, static_cast<jint>(discriminator),
	static_cast<jboolean>(connDiscriminator.IsShortDiscriminator()), reinterpret_cast<jlong>(this),
	reinterpret_cast<jlong>(appState));
	VerifyOrExit(!env->ExceptionCheck(), err = CHIP_JNI_ERROR_EXCEPTION_THROWN);

	exit:
	if (err != CHIP_NO_ERROR)
	{
	JniReferences::GetInstance().ReportError(env, err, __FUNCTION__);
	}
	env->ExceptionClear();
	}

	CHIP_ERROR BLEManagerImpl::CancelConnection()
	{
	return CHIP_ERROR_NOT_IMPLEMENTED;
	}

	// ===== end implement virtual methods on BleConnectionDelegate.

	//== helpers

	CHIP_ERROR BLEManagerImpl::HasFlag(BLEManagerImpl::Flags flag, bool & has)
	{
	chip::DeviceLayer::StackUnlock unlock;
	jlong f = static_cast<jlong>(flag);

	VerifyOrReturnLogError(mBLEManagerObject.HasValidObjectRef(), CHIP_ERROR_INCORRECT_STATE);
	VerifyOrReturnLogError(mHasFlagMethod != nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	VerifyOrReturnLogError(env != nullptr, CHIP_JNI_ERROR_NO_ENV);

	jboolean jret = env->CallBooleanMethod(mBLEManagerObject.ObjectRef(), mHasFlagMethod, f);
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in BLEManager::hasFlag");
	env->ExceptionDescribe();
	return CHIP_JNI_ERROR_EXCEPTION_THROWN;
	}

	has = static_cast<bool>(jret);
	return CHIP_NO_ERROR;
	}

	CHIP_ERROR BLEManagerImpl::SetFlag(BLEManagerImpl::Flags flag, bool isSet)
	{
	chip::DeviceLayer::StackUnlock unlock;
	jlong jFlag = static_cast<jlong>(flag);
	jboolean jIsSet = static_cast<jboolean>(isSet);

	VerifyOrReturnLogError(mBLEManagerObject.HasValidObjectRef(), CHIP_ERROR_INCORRECT_STATE);
	VerifyOrReturnLogError(mSetFlagMethod != nullptr, CHIP_ERROR_INCORRECT_STATE);

	JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread();
	VerifyOrReturnLogError(env != nullptr, CHIP_JNI_ERROR_NO_ENV);

	env->CallLongMethod(mBLEManagerObject.ObjectRef(), mSetFlagMethod, jFlag, jIsSet);
	if (env->ExceptionCheck())
	{
	ChipLogError(DeviceLayer, "Java exception in BLEManager::satFlag");
	env->ExceptionDescribe();
	return CHIP_JNI_ERROR_EXCEPTION_THROWN;
	}

	return CHIP_NO_ERROR;
	}

	} // namespace Internal
	} // namespace DeviceLayer
	} // namespace chip

	#endif // CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE