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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2020 Nordix Foundation. All rights reserved.
* Modifications Copyright (C) 2021 Pantheon.tech
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.cps.spi;
import java.util.Collection;
import java.util.Map;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.onap.cps.spi.model.DataNode;
/*
Data Store interface that is responsible for handling yang data.
Please follow guidelines in https://gerrit.nordix.org/#/c/onap/ccsdk/features/+/6698/19/cps/interface-proposal/src/main/java/cps/javadoc/spi/DataStoreService.java
when adding methods.
*/
public interface CpsDataPersistenceService {
/**
* Store a datanode.
*
* @param dataspaceName dataspace name
* @param anchorName anchor name
* @param dataNode data node
*/
void storeDataNode(@NonNull String dataspaceName, @NonNull String anchorName,
@NonNull DataNode dataNode);
/**
* Add a child to a Fragment.
*
* @param dataspaceName dataspace name
* @param anchorName anchor name
* @param parentXpath parent xpath
* @param dataNode dataNode
*/
void addChildDataNode(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String parentXpath,
@NonNull DataNode dataNode);
/**
* Retrieves datanode by XPath for given dataspace and anchor.
*
* @param dataspaceName dataspace name
* @param anchorName anchor name
* @param xpath xpath
* @param fetchDescendantsOption defines the scope of data to fetch: either single node or all the descendant nodes
* (recursively) as well
* @return data node object
*/
DataNode getDataNode(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String xpath,
@NonNull FetchDescendantsOption fetchDescendantsOption);
/**
* Updates leaves for existing data node.
*
* @param dataspaceName dataspace name
* @param anchorName anchor name
* @param xpath xpath
* @param leaves the leaves as a map where key is a leaf name and a value is a leaf value
*/
void updateDataLeaves(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String xpath,
@NonNull Map<String, Object> leaves);
/**
* Replaces existing data node content including descendants.
*
* @param dataspaceName dataspace name
* @param anchorName anchor name
* @param dataNode data node
*/
void replaceDataNodeTree(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull DataNode dataNode);
/**
* Get a datanode by cps path.
*
* @param dataspaceName dataspace name
* @param anchorName anchor name
* @param cpsPath cps path
* @return the data nodes found i.e. 0 or more data nodes
*/
Collection<DataNode> queryDataNodes(@NonNull String dataspaceName, @NonNull String anchorName,
@NonNull String cpsPath);
}
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