| /* |
| * Copyright (c) 2024 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. |
| */ |
| #pragma once |
| |
| #include <app/util/af-types.h> |
| #include <lib/core/CHIPError.h> |
| #include <protocols/interaction_model/StatusCode.h> |
| |
| #include <variant> |
| |
| namespace chip { |
| namespace app { |
| namespace Ember { |
| |
| /// Fetch the source for the given attribute path: either a cluster (for global ones) or attribute |
| /// path. |
| /// |
| /// Possible return values: |
| /// - EmberAfCluster (NEVER null) - Only for GlobalAttributesNotInMetaData |
| /// - EmberAfAttributeMetadata (NEVER null) - if the attribute is known to ember datastore |
| /// - Status, only specifically for unknown attributes, may only be one of: |
| /// - Status::UnsupportedEndpoint |
| /// - Status::UnsupportedCluster |
| /// - Status::UnsupportedAttribute |
| std::variant<const EmberAfCluster *, // global attribute, data from a cluster |
| const EmberAfAttributeMetadata *, // a specific attribute stored by ember |
| Protocols::InteractionModel::Status // one of Status::Unsupported* |
| > |
| FindAttributeMetadata(const ConcreteAttributePath & aPath); |
| |
| } // namespace Ember |
| } // namespace app |
| } // namespace chip |
