examples/light-switch-app/asr/src/BindingHandler.cpp - third_party/github/project-chip/connectedhomeip - Git at Google

 /*
  *
  *    Copyright (c) 2022 Project CHIP Authors
  *    All rights reserved.
  *
  *    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.
  */

 #include "BindingHandler.h"
 #include "AppConfig.h"
 #include "app/CommandSender.h"
 #include "app/clusters/bindings/BindingManager.h"
 #include "app/server/Server.h"
 #include "controller/InvokeInteraction.h"
 #include "platform/CHIPDeviceLayer.h"
 #include <app/clusters/bindings/bindings.h>
 #include <lib/support/CodeUtils.h>

 using namespace chip;
 using namespace chip::app;

 void BindingHandler::Init()
 {
     // The initialization of binding manager will try establishing connection with unicast peers
     // so it requires the Server instance to be correctly initialized. Post the init function to
     // the event queue so that everything is ready when initialization is conducted.
     chip::DeviceLayer::PlatformMgr().ScheduleWork(InitInternal);
 }

 void BindingHandler::OnInvokeCommandFailure(BindingData & aBindingData, CHIP_ERROR aError)
 {
     CHIP_ERROR error;

     if (aError == CHIP_ERROR_TIMEOUT && !BindingHandler::GetInstance().mCaseSessionRecovered)
     {
         ASR_LOG("Response timeout for invoked command, trying to recover CASE session.");

         // Set flag to not try recover session multiple times.
         BindingHandler::GetInstance().mCaseSessionRecovered = true;

         // Allocate new object to make sure its life time will be appropriate.
         BindingHandler::BindingData * data = Platform::New<BindingHandler::BindingData>();
         *data                              = aBindingData;

         // Establish new CASE session and retrasmit command that was not applied.
         error = BindingManager::GetInstance().NotifyBoundClusterChanged(aBindingData.EndpointId, aBindingData.ClusterId,
                                                                         static_cast<void *>(data));

         if (CHIP_NO_ERROR != error)
         {
             ASR_LOG("NotifyBoundClusterChanged failed due to: %" CHIP_ERROR_FORMAT, error.Format());
             return;
         }
     }
     else
     {
         ASR_LOG("Binding command was not applied! Reason: %" CHIP_ERROR_FORMAT, aError.Format());
     }
 }

 void BindingHandler::OnOffProcessCommand(CommandId aCommandId, const EmberBindingTableEntry & aBinding,
                                          OperationalDeviceProxy * aDevice, void * aContext)
 {
     CHIP_ERROR ret     = CHIP_NO_ERROR;
     BindingData * data = reinterpret_cast<BindingData *>(aContext);

     auto onSuccess = [](const ConcreteCommandPath & commandPath, const StatusIB & status, const auto & dataResponse) {
         ASR_LOG("Binding command applied successfully!");

         // If session was recovered and communication works, reset flag to the initial state.
         if (BindingHandler::GetInstance().mCaseSessionRecovered)
             BindingHandler::GetInstance().mCaseSessionRecovered = false;
     };

     auto onFailure = [dataRef = *data](CHIP_ERROR aError) mutable { BindingHandler::OnInvokeCommandFailure(dataRef, aError); };

     if (aDevice)
     {
         // We are validating connection is ready once here instead of multiple times in each case statement below.
         VerifyOrDie(aDevice->ConnectionReady());
     }

     switch (aCommandId)
     {
     case Clusters::OnOff::Commands::Toggle::Id:
         Clusters::OnOff::Commands::Toggle::Type toggleCommand;
         if (aDevice)
         {
             ret = Controller::InvokeCommandRequest(aDevice->GetExchangeManager(), aDevice->GetSecureSession().Value(),
                                                    aBinding.remote, toggleCommand, onSuccess, onFailure);
         }
         else
         {

             Messaging::ExchangeManager & exchangeMgr = Server::GetInstance().GetExchangeManager();
             ret = Controller::InvokeGroupCommandRequest(&exchangeMgr, aBinding.fabricIndex, aBinding.groupId, toggleCommand);
         }
         break;

     case Clusters::OnOff::Commands::On::Id:
         Clusters::OnOff::Commands::On::Type onCommand;
         if (aDevice)
         {
             ret = Controller::InvokeCommandRequest(aDevice->GetExchangeManager(), aDevice->GetSecureSession().Value(),
                                                    aBinding.remote, onCommand, onSuccess, onFailure);
         }
         else
         {
             Messaging::ExchangeManager & exchangeMgr = Server::GetInstance().GetExchangeManager();
             ret = Controller::InvokeGroupCommandRequest(&exchangeMgr, aBinding.fabricIndex, aBinding.groupId, onCommand);
         }
         break;

     case Clusters::OnOff::Commands::Off::Id:
         Clusters::OnOff::Commands::Off::Type offCommand;
         if (aDevice)
         {
             ret = Controller::InvokeCommandRequest(aDevice->GetExchangeManager(), aDevice->GetSecureSession().Value(),
                                                    aBinding.remote, offCommand, onSuccess, onFailure);
         }
         else
         {
             Messaging::ExchangeManager & exchangeMgr = Server::GetInstance().GetExchangeManager();
             ret = Controller::InvokeGroupCommandRequest(&exchangeMgr, aBinding.fabricIndex, aBinding.groupId, offCommand);
         }
         break;
     default:
         ASR_LOG("Invalid binding command data - commandId is not supported");
         break;
     }
     if (CHIP_NO_ERROR != ret)
     {
         ASR_LOG("Invoke OnOff Command Request ERROR: %s", ErrorStr(ret));
     }
 }

 void BindingHandler::LevelControlProcessCommand(CommandId aCommandId, const EmberBindingTableEntry & aBinding,
                                                 OperationalDeviceProxy * aDevice, void * aContext)
 {
     CHIP_ERROR ret     = CHIP_NO_ERROR;
     BindingData * data = reinterpret_cast<BindingData *>(aContext);

     auto onSuccess = [](const ConcreteCommandPath & commandPath, const StatusIB & status, const auto & dataResponse) {
         ASR_LOG("Binding command applied successfully!");

         // If session was recovered and communication works, reset flag to the initial state.
         if (BindingHandler::GetInstance().mCaseSessionRecovered)
             BindingHandler::GetInstance().mCaseSessionRecovered = false;
     };

     auto onFailure = [dataRef = *data](CHIP_ERROR aError) mutable { BindingHandler::OnInvokeCommandFailure(dataRef, aError); };

     if (aDevice)
     {
         // We are validating connection is ready once here instead of multiple times in each case statement below.
         VerifyOrDie(aDevice->ConnectionReady());
     }

     switch (aCommandId)
     {
     case Clusters::LevelControl::Commands::MoveToLevel::Id: {
         Clusters::LevelControl::Commands::MoveToLevel::Type moveToLevelCommand;
         moveToLevelCommand.level = data->Value;
         if (aDevice)
         {
             ret = Controller::InvokeCommandRequest(aDevice->GetExchangeManager(), aDevice->GetSecureSession().Value(),
                                                    aBinding.remote, moveToLevelCommand, onSuccess, onFailure);
         }
         else
         {
             Messaging::ExchangeManager & exchangeMgr = Server::GetInstance().GetExchangeManager();
             ret = Controller::InvokeGroupCommandRequest(&exchangeMgr, aBinding.fabricIndex, aBinding.groupId, moveToLevelCommand);
         }
     }
     break;
     default:
         ASR_LOG("Invalid binding command data - CommandId is not supported");
         break;
     }
     if (CHIP_NO_ERROR != ret)
     {
         ASR_LOG("Invoke Group Command Request ERROR: %s", ErrorStr(ret));
     }
 }

 void BindingHandler::LightSwitchChangedHandler(const EmberBindingTableEntry & aBinding, OperationalDeviceProxy * deviceProxy,
                                                void * context)
 {
     VerifyOrReturn(context != nullptr, ChipLogError(NotSpecified, "OnDeviceConnectedFn: context is null"));
     BindingData * data = static_cast<BindingData *>(context);

     if (aBinding.type == EMBER_MULTICAST_BINDING && data->IsGroup)
     {
         switch (data->ClusterId)
         {
         case Clusters::OnOff::Id:
             OnOffProcessCommand(data->CommandId, aBinding, nullptr, context);
             break;
         case Clusters::LevelControl::Id:
             LevelControlProcessCommand(data->CommandId, aBinding, nullptr, context);
             break;
         default:
             ChipLogError(NotSpecified, "Invalid binding group command data");
             break;
         }
     }
     else if (aBinding.type == EMBER_UNICAST_BINDING && !data->IsGroup)
     {
         switch (data->ClusterId)
         {
         case Clusters::OnOff::Id:
             OnOffProcessCommand(data->CommandId, aBinding, deviceProxy, context);
             break;
         case Clusters::LevelControl::Id:
             LevelControlProcessCommand(data->CommandId, aBinding, deviceProxy, context);
             break;
         default:
             ChipLogError(NotSpecified, "Invalid binding unicast command data");
             break;
         }
     }
 }

 void BindingHandler::LightSwitchContextReleaseHandler(void * context)
 {
     VerifyOrReturn(context != nullptr, ChipLogError(NotSpecified, "LightSwitchContextReleaseHandler: context is null"));

     Platform::Delete(static_cast<BindingData *>(context));
 }

 void BindingHandler::InitInternal(intptr_t arg)
 {
     ASR_LOG("Initialize binding Handler");
     auto & server = chip::Server::GetInstance();
     chip::BindingManager::GetInstance().Init(
         { &server.GetFabricTable(), server.GetCASESessionManager(), &server.GetPersistentStorage() });
     chip::BindingManager::GetInstance().RegisterBoundDeviceChangedHandler(LightSwitchChangedHandler);
     chip::BindingManager::GetInstance().RegisterBoundDeviceContextReleaseHandler(LightSwitchContextReleaseHandler);
     BindingHandler::GetInstance().PrintBindingTable();
 }

 bool BindingHandler::IsGroupBound()
 {
     BindingTable & bindingTable = BindingTable::GetInstance();

     for (auto & entry : bindingTable)
     {
         if (EMBER_MULTICAST_BINDING == entry.type)
         {
             return true;
         }
     }
     return false;
 }

 void BindingHandler::PrintBindingTable()
 {
     BindingTable & bindingTable = BindingTable::GetInstance();

     ASR_LOG("Binding Table size: [%d]:", bindingTable.Size());
     uint8_t i = 0;
     for (auto & entry : bindingTable)
     {
         switch (entry.type)
         {
         case EMBER_UNICAST_BINDING:
             ASR_LOG("[%d] UNICAST:", i++);
             ASR_LOG("\t\t+ Fabric: %d\n \
             \t+ LocalEndpoint %d \n \
             \t+ ClusterId %d \n \
             \t+ RemoteEndpointId %d \n \
             \t+ NodeId %d",
                     (int) entry.fabricIndex, (int) entry.local, (int) entry.clusterId.Value(), (int) entry.remote,
                     (int) entry.nodeId);
             break;
         case EMBER_MULTICAST_BINDING:
             ASR_LOG("[%d] GROUP:", i++);
             ASR_LOG("\t\t+ Fabric: %d\n \
             \t+ LocalEndpoint %d \n \
             \t+ RemoteEndpointId %d \n \
             \t+ GroupId %d",
                     (int) entry.fabricIndex, (int) entry.local, (int) entry.remote, (int) entry.groupId);
             break;
         case EMBER_UNUSED_BINDING:
             ASR_LOG("[%d] UNUSED", i++);
             break;
         // case EMBER_MANY_TO_ONE_BINDING:
         //     ASR_LOG("[%d] MANY TO ONE", i++);
         //     break;
         default:
             break;
         }
     }
 }

 /********************************************************
  * Switch functions
  *********************************************************/

 void BindingHandler::SwitchWorkerHandler(intptr_t context)
 {
     VerifyOrReturn(context != 0, ChipLogError(NotSpecified, "SwitchWorkerFunction - Invalid work data"));

     BindingData * data = reinterpret_cast<BindingData *>(context);
     BindingManager::GetInstance().NotifyBoundClusterChanged(data->EndpointId, data->ClusterId, static_cast<void *>(data));
 }
	/*
	*
	* Copyright (c) 2022 Project CHIP Authors
	* All rights reserved.
	*
	* 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.
	*/

	#include "BindingHandler.h"
	#include "AppConfig.h"
	#include "app/CommandSender.h"
	#include "app/clusters/bindings/BindingManager.h"
	#include "app/server/Server.h"
	#include "controller/InvokeInteraction.h"
	#include "platform/CHIPDeviceLayer.h"
	#include <app/clusters/bindings/bindings.h>
	#include <lib/support/CodeUtils.h>

	using namespace chip;
	using namespace chip::app;

	void BindingHandler::Init()
	{
	// The initialization of binding manager will try establishing connection with unicast peers
	// so it requires the Server instance to be correctly initialized. Post the init function to
	// the event queue so that everything is ready when initialization is conducted.
	chip::DeviceLayer::PlatformMgr().ScheduleWork(InitInternal);
	}

	void BindingHandler::OnInvokeCommandFailure(BindingData & aBindingData, CHIP_ERROR aError)
	{
	CHIP_ERROR error;

	if (aError == CHIP_ERROR_TIMEOUT && !BindingHandler::GetInstance().mCaseSessionRecovered)
	{
	ASR_LOG("Response timeout for invoked command, trying to recover CASE session.");

	// Set flag to not try recover session multiple times.
	BindingHandler::GetInstance().mCaseSessionRecovered = true;

	// Allocate new object to make sure its life time will be appropriate.
	BindingHandler::BindingData * data = Platform::New<BindingHandler::BindingData>();
	*data = aBindingData;

	// Establish new CASE session and retrasmit command that was not applied.
	error = BindingManager::GetInstance().NotifyBoundClusterChanged(aBindingData.EndpointId, aBindingData.ClusterId,
	static_cast<void *>(data));

	if (CHIP_NO_ERROR != error)
	{
	ASR_LOG("NotifyBoundClusterChanged failed due to: %" CHIP_ERROR_FORMAT, error.Format());
	return;
	}
	}
	else
	{
	ASR_LOG("Binding command was not applied! Reason: %" CHIP_ERROR_FORMAT, aError.Format());
	}
	}

	void BindingHandler::OnOffProcessCommand(CommandId aCommandId, const EmberBindingTableEntry & aBinding,
	OperationalDeviceProxy * aDevice, void * aContext)
	{
	CHIP_ERROR ret = CHIP_NO_ERROR;
	BindingData * data = reinterpret_cast<BindingData *>(aContext);

	auto onSuccess = [](const ConcreteCommandPath & commandPath, const StatusIB & status, const auto & dataResponse) {
	ASR_LOG("Binding command applied successfully!");

	// If session was recovered and communication works, reset flag to the initial state.
	if (BindingHandler::GetInstance().mCaseSessionRecovered)
	BindingHandler::GetInstance().mCaseSessionRecovered = false;
	};

	auto onFailure = [dataRef = *data](CHIP_ERROR aError) mutable { BindingHandler::OnInvokeCommandFailure(dataRef, aError); };

	if (aDevice)
	{
	// We are validating connection is ready once here instead of multiple times in each case statement below.
	VerifyOrDie(aDevice->ConnectionReady());
	}

	switch (aCommandId)
	{
	case Clusters::OnOff::Commands::Toggle::Id:
	Clusters::OnOff::Commands::Toggle::Type toggleCommand;
	if (aDevice)
	{
	ret = Controller::InvokeCommandRequest(aDevice->GetExchangeManager(), aDevice->GetSecureSession().Value(),
	aBinding.remote, toggleCommand, onSuccess, onFailure);
	}
	else
	{

	Messaging::ExchangeManager & exchangeMgr = Server::GetInstance().GetExchangeManager();
	ret = Controller::InvokeGroupCommandRequest(&exchangeMgr, aBinding.fabricIndex, aBinding.groupId, toggleCommand);
	}
	break;

	case Clusters::OnOff::Commands::On::Id:
	Clusters::OnOff::Commands::On::Type onCommand;
	if (aDevice)
	{
	ret = Controller::InvokeCommandRequest(aDevice->GetExchangeManager(), aDevice->GetSecureSession().Value(),
	aBinding.remote, onCommand, onSuccess, onFailure);
	}
	else
	{
	Messaging::ExchangeManager & exchangeMgr = Server::GetInstance().GetExchangeManager();
	ret = Controller::InvokeGroupCommandRequest(&exchangeMgr, aBinding.fabricIndex, aBinding.groupId, onCommand);
	}
	break;

	case Clusters::OnOff::Commands::Off::Id:
	Clusters::OnOff::Commands::Off::Type offCommand;
	if (aDevice)
	{
	ret = Controller::InvokeCommandRequest(aDevice->GetExchangeManager(), aDevice->GetSecureSession().Value(),
	aBinding.remote, offCommand, onSuccess, onFailure);
	}
	else
	{
	Messaging::ExchangeManager & exchangeMgr = Server::GetInstance().GetExchangeManager();
	ret = Controller::InvokeGroupCommandRequest(&exchangeMgr, aBinding.fabricIndex, aBinding.groupId, offCommand);
	}
	break;
	default:
	ASR_LOG("Invalid binding command data - commandId is not supported");
	break;
	}
	if (CHIP_NO_ERROR != ret)
	{
	ASR_LOG("Invoke OnOff Command Request ERROR: %s", ErrorStr(ret));
	}
	}

	void BindingHandler::LevelControlProcessCommand(CommandId aCommandId, const EmberBindingTableEntry & aBinding,
	OperationalDeviceProxy * aDevice, void * aContext)
	{
	CHIP_ERROR ret = CHIP_NO_ERROR;
	BindingData * data = reinterpret_cast<BindingData *>(aContext);

	auto onSuccess = [](const ConcreteCommandPath & commandPath, const StatusIB & status, const auto & dataResponse) {
	ASR_LOG("Binding command applied successfully!");

	// If session was recovered and communication works, reset flag to the initial state.
	if (BindingHandler::GetInstance().mCaseSessionRecovered)
	BindingHandler::GetInstance().mCaseSessionRecovered = false;
	};

	auto onFailure = [dataRef = *data](CHIP_ERROR aError) mutable { BindingHandler::OnInvokeCommandFailure(dataRef, aError); };

	if (aDevice)
	{
	// We are validating connection is ready once here instead of multiple times in each case statement below.
	VerifyOrDie(aDevice->ConnectionReady());
	}

	switch (aCommandId)
	{
	case Clusters::LevelControl::Commands::MoveToLevel::Id: {
	Clusters::LevelControl::Commands::MoveToLevel::Type moveToLevelCommand;
	moveToLevelCommand.level = data->Value;
	if (aDevice)
	{
	ret = Controller::InvokeCommandRequest(aDevice->GetExchangeManager(), aDevice->GetSecureSession().Value(),
	aBinding.remote, moveToLevelCommand, onSuccess, onFailure);
	}
	else
	{
	Messaging::ExchangeManager & exchangeMgr = Server::GetInstance().GetExchangeManager();
	ret = Controller::InvokeGroupCommandRequest(&exchangeMgr, aBinding.fabricIndex, aBinding.groupId, moveToLevelCommand);
	}
	}
	break;
	default:
	ASR_LOG("Invalid binding command data - CommandId is not supported");
	break;
	}
	if (CHIP_NO_ERROR != ret)
	{
	ASR_LOG("Invoke Group Command Request ERROR: %s", ErrorStr(ret));
	}
	}

	void BindingHandler::LightSwitchChangedHandler(const EmberBindingTableEntry & aBinding, OperationalDeviceProxy * deviceProxy,
	void * context)
	{
	VerifyOrReturn(context != nullptr, ChipLogError(NotSpecified, "OnDeviceConnectedFn: context is null"));
	BindingData * data = static_cast<BindingData *>(context);

	if (aBinding.type == EMBER_MULTICAST_BINDING && data->IsGroup)
	{
	switch (data->ClusterId)
	{
	case Clusters::OnOff::Id:
	OnOffProcessCommand(data->CommandId, aBinding, nullptr, context);
	break;
	case Clusters::LevelControl::Id:
	LevelControlProcessCommand(data->CommandId, aBinding, nullptr, context);
	break;
	default:
	ChipLogError(NotSpecified, "Invalid binding group command data");
	break;
	}
	}
	else if (aBinding.type == EMBER_UNICAST_BINDING && !data->IsGroup)
	{
	switch (data->ClusterId)
	{
	case Clusters::OnOff::Id:
	OnOffProcessCommand(data->CommandId, aBinding, deviceProxy, context);
	break;
	case Clusters::LevelControl::Id:
	LevelControlProcessCommand(data->CommandId, aBinding, deviceProxy, context);
	break;
	default:
	ChipLogError(NotSpecified, "Invalid binding unicast command data");
	break;
	}
	}
	}

	void BindingHandler::LightSwitchContextReleaseHandler(void * context)
	{
	VerifyOrReturn(context != nullptr, ChipLogError(NotSpecified, "LightSwitchContextReleaseHandler: context is null"));

	Platform::Delete(static_cast<BindingData *>(context));
	}

	void BindingHandler::InitInternal(intptr_t arg)
	{
	ASR_LOG("Initialize binding Handler");
	auto & server = chip::Server::GetInstance();
	chip::BindingManager::GetInstance().Init(
	{ &server.GetFabricTable(), server.GetCASESessionManager(), &server.GetPersistentStorage() });
	chip::BindingManager::GetInstance().RegisterBoundDeviceChangedHandler(LightSwitchChangedHandler);
	chip::BindingManager::GetInstance().RegisterBoundDeviceContextReleaseHandler(LightSwitchContextReleaseHandler);
	BindingHandler::GetInstance().PrintBindingTable();
	}

	bool BindingHandler::IsGroupBound()
	{
	BindingTable & bindingTable = BindingTable::GetInstance();

	for (auto & entry : bindingTable)
	{
	if (EMBER_MULTICAST_BINDING == entry.type)
	{
	return true;
	}
	}
	return false;
	}

	void BindingHandler::PrintBindingTable()
	{
	BindingTable & bindingTable = BindingTable::GetInstance();

	ASR_LOG("Binding Table size: [%d]:", bindingTable.Size());
	uint8_t i = 0;
	for (auto & entry : bindingTable)
	{
	switch (entry.type)
	{
	case EMBER_UNICAST_BINDING:
	ASR_LOG("[%d] UNICAST:", i++);
	ASR_LOG("\t\t+ Fabric: %d\n \
	\t+ LocalEndpoint %d \n \
	\t+ ClusterId %d \n \
	\t+ RemoteEndpointId %d \n \
	\t+ NodeId %d",
	(int) entry.fabricIndex, (int) entry.local, (int) entry.clusterId.Value(), (int) entry.remote,
	(int) entry.nodeId);
	break;
	case EMBER_MULTICAST_BINDING:
	ASR_LOG("[%d] GROUP:", i++);
	ASR_LOG("\t\t+ Fabric: %d\n \
	\t+ LocalEndpoint %d \n \
	\t+ RemoteEndpointId %d \n \
	\t+ GroupId %d",
	(int) entry.fabricIndex, (int) entry.local, (int) entry.remote, (int) entry.groupId);
	break;
	case EMBER_UNUSED_BINDING:
	ASR_LOG("[%d] UNUSED", i++);
	break;
	// case EMBER_MANY_TO_ONE_BINDING:
	// ASR_LOG("[%d] MANY TO ONE", i++);
	// break;
	default:
	break;
	}
	}
	}

	/********************************************************
	* Switch functions
	*********************************************************/

	void BindingHandler::SwitchWorkerHandler(intptr_t context)
	{
	VerifyOrReturn(context != 0, ChipLogError(NotSpecified, "SwitchWorkerFunction - Invalid work data"));

	BindingData * data = reinterpret_cast<BindingData *>(context);
	BindingManager::GetInstance().NotifyBoundClusterChanged(data->EndpointId, data->ClusterId, static_cast<void *>(data));
	}