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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2022-2023 Nordix Foundation
* Modifications Copyright (C) 2023 TechMahindra Ltd.
* ================================================================================
* 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.impl.inventory;
import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NCMP_DATASPACE_NAME;
import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NCMP_DMI_REGISTRY_ANCHOR;
import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NCMP_DMI_REGISTRY_PARENT;
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.HashSet;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import lombok.RequiredArgsConstructor;
import org.onap.cps.ncmp.api.impl.inventory.enums.PropertyType;
import org.onap.cps.ncmp.api.impl.trustlevel.TrustLevel;
import org.onap.cps.spi.CpsDataPersistenceService;
import org.onap.cps.spi.FetchDescendantsOption;
import org.onap.cps.spi.model.DataNode;
import org.onap.cps.spi.utils.CpsValidator;
import org.springframework.stereotype.Component;
@RequiredArgsConstructor
@Component
public class CmHandleQueriesImpl implements CmHandleQueries {
private static final String DESCENDANT_PATH = "//";
private static final String ANCESTOR_CM_HANDLES = "/ancestor::cm-handles";
private final CpsDataPersistenceService cpsDataPersistenceService;
private final Map<String, TrustLevel> trustLevelPerDmiPlugin;
private final Map<String, TrustLevel> trustLevelPerCmHandle;
private final CpsValidator cpsValidator;
@Override
public Collection<String> queryCmHandleAdditionalProperties(final Map<String, String> privatePropertyQueryPairs) {
return queryCmHandleAnyProperties(privatePropertyQueryPairs, PropertyType.ADDITIONAL);
}
@Override
public Collection<String> queryCmHandlePublicProperties(final Map<String, String> publicPropertyQueryPairs) {
return queryCmHandleAnyProperties(publicPropertyQueryPairs, PropertyType.PUBLIC);
}
@Override
public Collection<String> queryCmHandlesByTrustLevel(final Map<String, String> trustLevelPropertyQueryPairs) {
final String trustLevelProperty = trustLevelPropertyQueryPairs.values().iterator().next();
final TrustLevel targetTrustLevel = TrustLevel.valueOf(trustLevelProperty);
return getCmHandleIdsByTrustLevel(targetTrustLevel);
}
@Override
public List<DataNode> queryCmHandlesByState(final CmHandleState cmHandleState) {
return queryCmHandleAncestorsByCpsPath("//state[@cm-handle-state=\"" + cmHandleState + "\"]",
INCLUDE_ALL_DESCENDANTS);
}
@Override
public List<DataNode> queryNcmpRegistryByCpsPath(final String cpsPath,
final FetchDescendantsOption fetchDescendantsOption) {
return cpsDataPersistenceService.queryDataNodes(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
cpsPath, fetchDescendantsOption);
}
@Override
public List<DataNode> queryCmHandleAncestorsByCpsPath(final String cpsPath,
final FetchDescendantsOption fetchDescendantsOption) {
return queryNcmpRegistryByCpsPath(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 queryCmHandleAncestorsByCpsPath("//state/datastores" + "/operational[@sync-state=\""
+ dataStoreSyncState + "\"]", FetchDescendantsOption.OMIT_DESCENDANTS);
}
@Override
public Collection<String> getCmHandleIdsByDmiPluginIdentifier(final String dmiPluginIdentifier) {
final Collection<String> cmHandleIds = new HashSet<>();
for (final ModelledDmiServiceLeaves modelledDmiServiceLeaf : ModelledDmiServiceLeaves.values()) {
for (final DataNode cmHandleAsDataNode: getCmHandlesByDmiPluginIdentifierAndDmiProperty(
dmiPluginIdentifier,
modelledDmiServiceLeaf.getLeafName())) {
cmHandleIds.add(cmHandleAsDataNode.getLeaves().get("id").toString());
}
}
return cmHandleIds;
}
private Collection<String> getCmHandleIdsByTrustLevel(final TrustLevel targetTrustLevel) {
final Collection<String> selectedCmHandleIds = new HashSet<>();
for (final Map.Entry<String, TrustLevel> mapEntry : trustLevelPerDmiPlugin.entrySet()) {
final String dmiPluginIdentifier = mapEntry.getKey();
final TrustLevel dmiTrustLevel = mapEntry.getValue();
final Collection<String> candidateCmHandleIds = getCmHandleIdsByDmiPluginIdentifier(dmiPluginIdentifier);
for (final String candidateCmHandleId : candidateCmHandleIds) {
final TrustLevel candidateCmHandleTrustLevel = trustLevelPerCmHandle.get(candidateCmHandleId);
final TrustLevel effectiveTrustlevel =
candidateCmHandleTrustLevel.getEffectiveTrustLevel(dmiTrustLevel);
if (targetTrustLevel.equals(effectiveTrustlevel)) {
selectedCmHandleIds.add(candidateCmHandleId);
}
}
}
return selectedCmHandleIds;
}
private Collection<String> collectCmHandleIdsFromDataNodes(final Collection<DataNode> dataNodes) {
return dataNodes.stream().map(dataNode -> (String) dataNode.getLeaves().get("id")).collect(Collectors.toSet());
}
private Collection<String> queryCmHandleAnyProperties(
final Map<String, String> propertyQueryPairs,
final PropertyType propertyType) {
if (propertyQueryPairs.isEmpty()) {
return Collections.emptySet();
}
Collection<String> cmHandleIds = null;
for (final Map.Entry<String, String> publicPropertyQueryPair : propertyQueryPairs.entrySet()) {
final String cpsPath = DESCENDANT_PATH + propertyType.getYangContainerName() + "[@name=\""
+ publicPropertyQueryPair.getKey()
+ "\" and @value=\"" + publicPropertyQueryPair.getValue() + "\"]";
final Collection<DataNode> dataNodes = queryCmHandleAncestorsByCpsPath(cpsPath,
OMIT_DESCENDANTS);
if (cmHandleIds == null) {
cmHandleIds = collectCmHandleIdsFromDataNodes(dataNodes);
} else {
final Collection<String> cmHandleIdsToRetain = collectCmHandleIdsFromDataNodes(dataNodes);
cmHandleIds.retainAll(cmHandleIdsToRetain);
}
if (cmHandleIds.isEmpty()) {
break;
}
}
return cmHandleIds;
}
private List<DataNode> getCmHandlesByDmiPluginIdentifierAndDmiProperty(final String dmiPluginIdentifier,
final String dmiProperty) {
return cpsDataPersistenceService.queryDataNodes(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
NCMP_DMI_REGISTRY_PARENT + "/cm-handles[@" + dmiProperty + "='" + dmiPluginIdentifier + "']",
OMIT_DESCENDANTS);
}
private DataNode getCmHandleState(final String cmHandleId) {
cpsValidator.validateNameCharacters(cmHandleId);
final String xpath = NCMP_DMI_REGISTRY_PARENT + "/cm-handles[@id='" + cmHandleId + "']/state";
return cpsDataPersistenceService.getDataNodes(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
xpath, OMIT_DESCENDANTS).iterator().next();
}
}
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