blob: e6397b9d883ed252b96325fb10cd2fab060c3d96 [file] [log] [blame]
/*
* Copyright (c) 2021 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.
*/
#pragma once
#include <app/AttributePersistenceProvider.h>
#include <lib/core/CHIPPersistentStorageDelegate.h>
#include <lib/support/DefaultStorageKeyAllocator.h>
namespace chip {
namespace app {
/**
* Default implementation of AttributePersistenceProvider. This uses
* PersistentStorageDelegate to store the attribute values.
*
* NOTE: SetAttributePersistenceProvider must still be called with an instance
* of this class, since it can't be constructed automatically without knowing
* what PersistentStorageDelegate is to be used.
*/
class DefaultAttributePersistenceProvider : public AttributePersistenceProvider
{
public:
DefaultAttributePersistenceProvider() {}
// Passed-in storage must outlive this object.
CHIP_ERROR Init(PersistentStorageDelegate * storage)
{
if (storage == nullptr)
{
return CHIP_ERROR_INVALID_ARGUMENT;
}
mStorage = storage;
return CHIP_NO_ERROR;
}
void Shutdown() {}
// AttributePersistenceProvider implementation.
CHIP_ERROR WriteValue(const ConcreteAttributePath & aPath, const ByteSpan & aValue) override;
CHIP_ERROR ReadValue(const ConcreteAttributePath & aPath, const EmberAfAttributeMetadata * aMetadata,
MutableByteSpan & aValue) override;
protected:
PersistentStorageDelegate * mStorage;
};
} // namespace app
} // namespace chip