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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2022 Nordix Foundation
* ================================================================================
* 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.ncmp.api.inventory;
import static org.onap.cps.ncmp.api.impl.utils.YangDataConverter.convertYangModelCmHandleToNcmpServiceCmHandle;
import static org.onap.cps.spi.FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS;
import static org.onap.cps.spi.FetchDescendantsOption.OMIT_DESCENDANTS;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import lombok.RequiredArgsConstructor;
import org.onap.cps.ncmp.api.impl.utils.YangDataConverter;
import org.onap.cps.ncmp.api.inventory.enums.PropertyType;
import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle;
import org.onap.cps.spi.CpsDataPersistenceService;
import org.onap.cps.spi.FetchDescendantsOption;
import org.onap.cps.spi.model.DataNode;
import org.springframework.stereotype.Component;
@RequiredArgsConstructor
@Component
public class CmHandleQueriesImpl implements CmHandleQueries {
private static final String NCMP_DATASPACE_NAME = "NCMP-Admin";
private static final String NCMP_DMI_REGISTRY_ANCHOR = "ncmp-dmi-registry";
private final CpsDataPersistenceService cpsDataPersistenceService;
private static final Map<String, NcmpServiceCmHandle> NO_QUERY_TO_EXECUTE = null;
private static final String ANCESTOR_CM_HANDLES = "/ancestor::cm-handles";
@Override
public Map<String, NcmpServiceCmHandle> queryCmHandleAdditionalProperties(
final Map<String, String> privatePropertyQueryPairs) {
return queryCmHandleAnyProperties(privatePropertyQueryPairs, PropertyType.ADDITIONAL);
}
@Override
public Map<String, NcmpServiceCmHandle> queryCmHandlePublicProperties(
final Map<String, String> publicPropertyQueryPairs) {
return queryCmHandleAnyProperties(publicPropertyQueryPairs, PropertyType.PUBLIC);
}
private Map<String, NcmpServiceCmHandle> queryCmHandleAnyProperties(
final Map<String, String> propertyQueryPairs,
final PropertyType propertyType) {
if (propertyQueryPairs.isEmpty()) {
return Collections.emptyMap();
}
Map<String, NcmpServiceCmHandle> cmHandleIdToNcmpServiceCmHandles = null;
for (final Map.Entry<String, String> publicPropertyQueryPair : propertyQueryPairs.entrySet()) {
final String cpsPath = "//" + propertyType.getYangContainerName() + "[@name=\""
+ publicPropertyQueryPair.getKey()
+ "\" and @value=\"" + publicPropertyQueryPair.getValue() + "\"]";
final Collection<DataNode> dataNodes = queryCmHandleDataNodesByCpsPath(cpsPath, INCLUDE_ALL_DESCENDANTS);
if (cmHandleIdToNcmpServiceCmHandles == null) {
cmHandleIdToNcmpServiceCmHandles = collectDataNodesToNcmpServiceCmHandles(dataNodes);
} else {
final Collection<String> cmHandleIdsToRetain = dataNodes.parallelStream()
.map(dataNode -> dataNode.getLeaves().get("id").toString()).collect(Collectors.toSet());
cmHandleIdToNcmpServiceCmHandles.keySet().retainAll(cmHandleIdsToRetain);
}
if (cmHandleIdToNcmpServiceCmHandles.isEmpty()) {
break;
}
}
return cmHandleIdToNcmpServiceCmHandles;
}
@Override
public Map<String, NcmpServiceCmHandle> combineCmHandleQueries(final Map<String, NcmpServiceCmHandle> firstQuery,
final Map<String, NcmpServiceCmHandle> secondQuery) {
if (firstQuery == NO_QUERY_TO_EXECUTE && secondQuery == NO_QUERY_TO_EXECUTE) {
return NO_QUERY_TO_EXECUTE;
} else if (firstQuery == NO_QUERY_TO_EXECUTE) {
return secondQuery;
} else if (secondQuery == NO_QUERY_TO_EXECUTE) {
return firstQuery;
} else {
firstQuery.keySet().retainAll(secondQuery.keySet());
return firstQuery;
}
}
@Override
public List<DataNode> queryCmHandlesByState(final CmHandleState cmHandleState) {
return queryCmHandleDataNodesByCpsPath("//state[@cm-handle-state=\"" + cmHandleState + "\"]",
INCLUDE_ALL_DESCENDANTS);
}
@Override
public List<DataNode> queryCmHandleDataNodesByCpsPath(final String cpsPath,
final FetchDescendantsOption fetchDescendantsOption) {
return cpsDataPersistenceService.queryDataNodes(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
cpsPath + ANCESTOR_CM_HANDLES, fetchDescendantsOption);
}
@Override
public boolean cmHandleHasState(final String cmHandleId, final CmHandleState requiredCmHandleState) {
final DataNode stateDataNode = getCmHandleState(cmHandleId);
final String cmHandleStateAsString = (String) stateDataNode.getLeaves().get("cm-handle-state");
return CmHandleState.valueOf(cmHandleStateAsString).equals(requiredCmHandleState);
}
@Override
public List<DataNode> queryCmHandlesByOperationalSyncState(final DataStoreSyncState dataStoreSyncState) {
return queryCmHandleDataNodesByCpsPath("//state/datastores" + "/operational[@sync-state=\""
+ dataStoreSyncState + "\"]", FetchDescendantsOption.OMIT_DESCENDANTS);
}
private Map<String, NcmpServiceCmHandle> collectDataNodesToNcmpServiceCmHandles(
final Collection<DataNode> dataNodes) {
final Map<String, NcmpServiceCmHandle> cmHandleIdToNcmpServiceCmHandle = new HashMap<>();
dataNodes.forEach(dataNode -> {
final NcmpServiceCmHandle ncmpServiceCmHandle = createNcmpServiceCmHandle(dataNode);
cmHandleIdToNcmpServiceCmHandle.put(ncmpServiceCmHandle.getCmHandleId(), ncmpServiceCmHandle);
});
return cmHandleIdToNcmpServiceCmHandle;
}
private NcmpServiceCmHandle createNcmpServiceCmHandle(final DataNode dataNode) {
return convertYangModelCmHandleToNcmpServiceCmHandle(YangDataConverter
.convertCmHandleToYangModel(dataNode, dataNode.getLeaves().get("id").toString()));
}
@Override
public Set<NcmpServiceCmHandle> getCmHandlesByDmiPluginIdentifier(final String dmiPluginIdentifier) {
final Map<String, DataNode> cmHandleAsDataNodePerCmHandleId = new HashMap<>();
for (final ModelledDmiServiceLeaves modelledDmiServiceLeaf : ModelledDmiServiceLeaves.values()) {
for (final DataNode cmHandleAsDataNode: getCmHandlesByDmiPluginIdentifierAndDmiProperty(
dmiPluginIdentifier,
modelledDmiServiceLeaf.getLeafName())) {
cmHandleAsDataNodePerCmHandleId.put(
cmHandleAsDataNode.getLeaves().get("id").toString(), cmHandleAsDataNode);
}
}
final Set<NcmpServiceCmHandle> ncmpServiceCmHandles = new HashSet<>(cmHandleAsDataNodePerCmHandleId.size());
cmHandleAsDataNodePerCmHandleId.values().forEach(
cmHandleAsDataNode -> ncmpServiceCmHandles.add(createNcmpServiceCmHandle(cmHandleAsDataNode)));
return ncmpServiceCmHandles;
}
private List<DataNode> getCmHandlesByDmiPluginIdentifierAndDmiProperty(final String dmiPluginIdentifier,
final String dmiProperty) {
return cpsDataPersistenceService.queryDataNodes(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
"/dmi-registry/cm-handles[@" + dmiProperty + "='" + dmiPluginIdentifier + "']",
OMIT_DESCENDANTS);
}
private DataNode getCmHandleState(final String cmHandleId) {
final String xpath = "/dmi-registry/cm-handles[@id='" + cmHandleId + "']/state";
return cpsDataPersistenceService.getDataNode(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
xpath, OMIT_DESCENDANTS);
}
}
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