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IM: Create ReadHandler after Session Establishment for Subscription R…
…esumption
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| /* | ||
| * | ||
| * Copyright (c) 2023 Project CHIP Authors | ||
| * | ||
| * 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 <app/SubscriptionResumptionHelper.h> | ||
| #include <app/InteractionModelEngine.h> | ||
|
|
||
| namespace chip { | ||
| namespace app { | ||
| SubscriptionResumptionHelper::SubscriptionResumptionHelper() : | ||
| mOnConnectedCallback(HandleDeviceConnected, this), mOnConnectionFailureCallback(HandleDeviceConnectionFailure, this) | ||
| {} | ||
|
|
||
| CHIP_ERROR SubscriptionResumptionHelper::ResumeSubscription(CASESessionManager & caseSessionManager, | ||
| SubscriptionResumptionStorage::SubscriptionInfo & subscriptionInfo) | ||
| { | ||
| mNodeId = subscriptionInfo.mNodeId; | ||
| mFabricIndex = subscriptionInfo.mFabricIndex; | ||
| mSubscriptionId = subscriptionInfo.mSubscriptionId; | ||
| mMinIntervalFloorSeconds = subscriptionInfo.mMinInterval; | ||
| mMaxInterval = subscriptionInfo.mMaxInterval; | ||
| mFabricFiltered = subscriptionInfo.mFabricFiltered; | ||
|
|
||
| if (subscriptionInfo.mAttributePaths.AllocatedSize() > 0) | ||
| { | ||
| mAttributePaths.Alloc(subscriptionInfo.mAttributePaths.AllocatedSize()); | ||
| ReturnErrorCodeIf(mAttributePaths.Get() == nullptr, CHIP_ERROR_NO_MEMORY); | ||
| for (size_t i = 0; i < subscriptionInfo.mAttributePaths.AllocatedSize(); i++) | ||
| { | ||
| mAttributePaths[i] = subscriptionInfo.mAttributePaths[i].GetParams(); | ||
| } | ||
| } | ||
|
|
||
| if (subscriptionInfo.mEventPaths.AllocatedSize() > 0) | ||
| { | ||
| mEventPaths.Alloc(subscriptionInfo.mEventPaths.AllocatedSize()); | ||
| ReturnErrorCodeIf(mEventPaths.Get() == nullptr, CHIP_ERROR_NO_MEMORY); | ||
| for (size_t i = 0; i < subscriptionInfo.mEventPaths.AllocatedSize(); i++) | ||
| { | ||
| mEventPaths[i] = subscriptionInfo.mEventPaths[i].GetParams(); | ||
| } | ||
| } | ||
| ScopedNodeId peerNode = ScopedNodeId(mNodeId, mFabricIndex); | ||
| caseSessionManager.FindOrEstablishSession(peerNode, &mOnConnectedCallback, &mOnConnectionFailureCallback); | ||
| return CHIP_NO_ERROR; | ||
| } | ||
|
|
||
| void SubscriptionResumptionHelper::HandleDeviceConnected(void * context, Messaging::ExchangeManager & exchangeMgr, | ||
| const SessionHandle & sessionHandle) | ||
| { | ||
| Platform::UniquePtr<SubscriptionResumptionHelper> _this(static_cast<SubscriptionResumptionHelper *>(context)); | ||
| InteractionModelEngine *imEngine = InteractionModelEngine::GetInstance(); | ||
| if (!imEngine->EnsureResourceForSubscription(_this->mFabricIndex, _this->mAttributePaths.AllocatedSize(), | ||
| _this->mEventPaths.AllocatedSize())) | ||
| { | ||
| ChipLogProgress(InteractionModel, "no resource for subscription resumption"); | ||
| return; | ||
| } | ||
| ReadHandler *readHandler = imEngine->mReadHandlers.CreateObject(*imEngine, imEngine->GetReportScheduler()); | ||
| if (readHandler == nullptr) { | ||
| ChipLogProgress(InteractionModel, "no resource for ReadHandler creation"); | ||
| return; | ||
| } | ||
| readHandler->OnSubscriptionResumed(sessionHandle, *_this); | ||
| } | ||
|
|
||
| void SubscriptionResumptionHelper::HandleDeviceConnectionFailure(void * context, const ScopedNodeId & peerId, CHIP_ERROR error) | ||
| { | ||
| Platform::UniquePtr<SubscriptionResumptionHelper> _this(static_cast<SubscriptionResumptionHelper *>(context)); | ||
| ChipLogError(DataManagement, "Failed to establish CASE for subscription-resumption with error '%" CHIP_ERROR_FORMAT "'", | ||
| error.Format()); | ||
| // Delete the persistent subscription information | ||
| auto * subscriptionResumptionStorage = InteractionModelEngine::GetInstance()->GetSubscriptionResumptionStorage(); | ||
| if (subscriptionResumptionStorage) | ||
| { | ||
| subscriptionResumptionStorage->Delete(_this->mNodeId, _this->mFabricIndex, _this->mSubscriptionId); | ||
| } | ||
| } | ||
|
|
||
| } // namespace app | ||
| } // namespace chip |
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