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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2022-2024 Nordix Foundation
* Modifications Copyright (C) 2022 Bell Canada
* 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;
import static org.onap.cps.ncmp.api.NcmpResponseStatus.ALTERNATE_ID_ALREADY_ASSOCIATED;
import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLES_NOT_FOUND;
import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLE_INVALID_ID;
import static org.onap.cps.ncmp.api.impl.NetworkCmProxyDataServicePropertyHandler.PropertyType.DMI_PROPERTY;
import static org.onap.cps.ncmp.api.impl.NetworkCmProxyDataServicePropertyHandler.PropertyType.PUBLIC_PROPERTY;
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 com.google.common.collect.ImmutableMap;
import java.time.OffsetDateTime;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.onap.cps.api.CpsDataService;
import org.onap.cps.ncmp.api.impl.inventory.InventoryPersistence;
import org.onap.cps.ncmp.api.impl.utils.AlternateIdChecker;
import org.onap.cps.ncmp.api.impl.utils.YangDataConverter;
import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
import org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse;
import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle;
import org.onap.cps.spi.exceptions.DataNodeNotFoundException;
import org.onap.cps.spi.exceptions.DataValidationException;
import org.onap.cps.spi.model.DataNode;
import org.onap.cps.spi.model.DataNodeBuilder;
import org.onap.cps.utils.JsonObjectMapper;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;
@Slf4j
@Service
@RequiredArgsConstructor
//Accepting the security hotspot as the string checked is generated from inside code and not user input.
@SuppressWarnings("squid:S5852")
public class NetworkCmProxyDataServicePropertyHandler {
private final InventoryPersistence inventoryPersistence;
private final CpsDataService cpsDataService;
private final JsonObjectMapper jsonObjectMapper;
private final AlternateIdChecker alternateIdChecker;
/**
* Iterates over incoming updatedNcmpServiceCmHandles and update the dataNodes based on the updated attributes.
* The attributes which are not passed will remain as is.
*
* @param updatedNcmpServiceCmHandles collection of CmHandles
*/
public List<CmHandleRegistrationResponse> updateCmHandleProperties(
final Collection<NcmpServiceCmHandle> updatedNcmpServiceCmHandles) {
final Collection<String> rejectedCmHandleIds = alternateIdChecker
.getIdsOfCmHandlesWithRejectedAlternateId(updatedNcmpServiceCmHandles, AlternateIdChecker.Operation.UPDATE);
final List<CmHandleRegistrationResponse> failureResponses =
CmHandleRegistrationResponse.createFailureResponses(rejectedCmHandleIds, ALTERNATE_ID_ALREADY_ASSOCIATED);
final List<CmHandleRegistrationResponse> cmHandleRegistrationResponses = new ArrayList<>(failureResponses);
for (final NcmpServiceCmHandle updatedNcmpServiceCmHandle : updatedNcmpServiceCmHandles) {
final String cmHandleId = updatedNcmpServiceCmHandle.getCmHandleId();
if (!rejectedCmHandleIds.contains(cmHandleId)) {
try {
final DataNode existingCmHandleDataNode = inventoryPersistence
.getCmHandleDataNodeByCmHandleId(cmHandleId).iterator().next();
processUpdates(existingCmHandleDataNode, updatedNcmpServiceCmHandle);
cmHandleRegistrationResponses.add(CmHandleRegistrationResponse.createSuccessResponse(cmHandleId));
} catch (final DataNodeNotFoundException e) {
log.error("Unable to find dataNode for cmHandleId : {} , caused by : {}", cmHandleId,
e.getMessage());
cmHandleRegistrationResponses.add(
CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLES_NOT_FOUND));
} catch (final DataValidationException e) {
log.error("Unable to update cm handle : {}, caused by : {}", cmHandleId, e.getMessage());
cmHandleRegistrationResponses.add(
CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLE_INVALID_ID));
} catch (final Exception exception) {
log.error("Unable to update cmHandle : {} , caused by : {}", cmHandleId, exception.getMessage());
cmHandleRegistrationResponses.add(
CmHandleRegistrationResponse.createFailureResponse(cmHandleId, exception));
}
}
}
return cmHandleRegistrationResponses;
}
private void processUpdates(final DataNode existingCmHandleDataNode,
final NcmpServiceCmHandle updatedNcmpServiceCmHandle) {
setAndUpdateCmHandleField(
updatedNcmpServiceCmHandle.getCmHandleId(), "alternate-id", updatedNcmpServiceCmHandle.getAlternateId());
updateDataProducerIdentifier(existingCmHandleDataNode, updatedNcmpServiceCmHandle);
if (!updatedNcmpServiceCmHandle.getPublicProperties().isEmpty()) {
updateProperties(existingCmHandleDataNode, PUBLIC_PROPERTY,
updatedNcmpServiceCmHandle.getPublicProperties());
}
if (!updatedNcmpServiceCmHandle.getDmiProperties().isEmpty()) {
updateProperties(existingCmHandleDataNode, DMI_PROPERTY, updatedNcmpServiceCmHandle.getDmiProperties());
}
}
private void updateDataProducerIdentifier(final DataNode cmHandleDataNode,
final NcmpServiceCmHandle ncmpServiceCmHandle) {
final String newDataProducerIdentifier = ncmpServiceCmHandle.getDataProducerIdentifier();
if (StringUtils.hasText(newDataProducerIdentifier)) {
final YangModelCmHandle yangModelCmHandle =
YangDataConverter.convertCmHandleToYangModel(cmHandleDataNode);
final String existingDataProducerIdentifier = yangModelCmHandle.getDataProducerIdentifier();
if (StringUtils.hasText(existingDataProducerIdentifier)) {
if (!existingDataProducerIdentifier.equals(newDataProducerIdentifier)) {
log.warn("Unable to update dataProducerIdentifier for cmHandle {}. "
+ "Value for dataProducerIdentifier has been set previously.",
ncmpServiceCmHandle.getCmHandleId());
}
} else {
setAndUpdateCmHandleField(
yangModelCmHandle.getId(), "data-producer-identifier", newDataProducerIdentifier);
}
}
}
private void updateProperties(final DataNode existingCmHandleDataNode, final PropertyType propertyType,
final Map<String, String> updatedProperties) {
final Collection<DataNode> replacementPropertyDataNodes =
getReplacementDataNodes(existingCmHandleDataNode, propertyType, updatedProperties);
replacementPropertyDataNodes.addAll(
getUnchangedPropertyDataNodes(existingCmHandleDataNode, propertyType, updatedProperties));
if (replacementPropertyDataNodes.isEmpty()) {
removeAllProperties(existingCmHandleDataNode, propertyType);
} else {
inventoryPersistence.replaceListContent(existingCmHandleDataNode.getXpath(), replacementPropertyDataNodes);
}
}
private void removeAllProperties(final DataNode existingCmHandleDataNode, final PropertyType propertyType) {
existingCmHandleDataNode.getChildDataNodes().forEach(dataNode -> {
final Matcher matcher = propertyType.propertyXpathPattern.matcher(dataNode.getXpath());
if (matcher.find()) {
log.info("Deleting dataNode with xpath : [{}]", dataNode.getXpath());
inventoryPersistence.deleteDataNode(dataNode.getXpath());
}
});
}
private Collection<DataNode> getUnchangedPropertyDataNodes(final DataNode existingCmHandleDataNode,
final PropertyType propertyType,
final Map<String, String> updatedProperties) {
final Collection<DataNode> unchangedPropertyDataNodes = new HashSet<>();
for (final DataNode existingPropertyDataNode : existingCmHandleDataNode.getChildDataNodes()) {
final Matcher matcher = propertyType.propertyXpathPattern.matcher(existingPropertyDataNode.getXpath());
if (matcher.find()) {
final String keyName = matcher.group(2);
if (!updatedProperties.containsKey(keyName)) {
unchangedPropertyDataNodes.add(existingPropertyDataNode);
}
}
}
return unchangedPropertyDataNodes;
}
private Collection<DataNode> getReplacementDataNodes(final DataNode existingCmHandleDataNode,
final PropertyType propertyType,
final Map<String, String> updatedProperties) {
final Collection<DataNode> replacementPropertyDataNodes = new HashSet<>();
updatedProperties.forEach((updatedAttributeKey, updatedAttributeValue) -> {
final String propertyXpath = getAttributeXpath(existingCmHandleDataNode, propertyType, updatedAttributeKey);
if (updatedAttributeValue != null) {
log.info("Creating a new DataNode with xpath {} , key : {} and value : {}", propertyXpath,
updatedAttributeKey, updatedAttributeValue);
replacementPropertyDataNodes.add(
buildDataNode(propertyXpath, updatedAttributeKey, updatedAttributeValue));
}
});
return replacementPropertyDataNodes;
}
private String getAttributeXpath(final DataNode cmHandle, final PropertyType propertyType,
final String attributeKey) {
return cmHandle.getXpath() + "/" + propertyType.xpathPrefix + String.format("[@name='%s']", attributeKey);
}
private DataNode buildDataNode(final String xpath, final String attributeKey, final String attributeValue) {
final Map<String, String> updatedLeaves = new LinkedHashMap<>(1);
updatedLeaves.put("name", attributeKey);
updatedLeaves.put("value", attributeValue);
log.debug("Building a new node with xpath {} with leaves (name : {} , value : {})", xpath, attributeKey,
attributeValue);
return new DataNodeBuilder().withXpath(xpath).withLeaves(ImmutableMap.copyOf(updatedLeaves)).build();
}
private void setAndUpdateCmHandleField(final String cmHandleIdToUpdate, final String fieldName,
final String newFieldValue) {
final Map<String, Map<String, String>> dmiRegistryData = new HashMap<>(1);
final Map<String, String> cmHandleData = new HashMap<>(2);
cmHandleData.put("id", cmHandleIdToUpdate);
cmHandleData.put(fieldName, newFieldValue);
dmiRegistryData.put("cm-handles", cmHandleData);
cpsDataService.updateNodeLeaves(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR, NCMP_DMI_REGISTRY_PARENT,
jsonObjectMapper.asJsonString(dmiRegistryData), OffsetDateTime.now());
log.debug("Updating {} for cmHandle {} with value : {})", fieldName, cmHandleIdToUpdate, newFieldValue);
}
enum PropertyType {
DMI_PROPERTY("additional-properties"), PUBLIC_PROPERTY("public-properties");
private static final String LIST_INDEX_PATTERN = "\\[@(\\w+)[^\\/]'([^']+)']";
final String xpathPrefix;
final Pattern propertyXpathPattern;
PropertyType(final String xpathPrefix) {
this.xpathPrefix = xpathPrefix;
this.propertyXpathPattern = Pattern.compile(xpathPrefix + LIST_INDEX_PATTERN);
}
}
}
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