cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServicePropertyHandler.java

   1 /*
   2  *  ============LICENSE_START=======================================================
   3  *  Copyright (C) 2022-2024 Nordix Foundation
   4  *  Modifications Copyright (C) 2022 Bell Canada
   5  *  Modifications Copyright (C) 2023 TechMahindra Ltd.
   6  *  ================================================================================
   7  *  Licensed under the Apache License, Version 2.0 (the "License");
   8  *  you may not use this file except in compliance with the License.
   9  *  You may obtain a copy of the License at
  10  *
  11  *        http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  *  Unless required by applicable law or agreed to in writing, software
  14  *  distributed under the License is distributed on an "AS IS" BASIS,
  15  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  *  See the License for the specific language governing permissions and
  17  *  limitations under the License.
  18  *
  19  *  SPDX-License-Identifier: Apache-2.0
  20  *  ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.cps.ncmp.api.impl;
  24
  25 import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLES_NOT_FOUND;
  26 import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLE_INVALID_ID;
  27 import static org.onap.cps.ncmp.api.impl.NetworkCmProxyDataServicePropertyHandler.PropertyType.DMI_PROPERTY;
  28 import static org.onap.cps.ncmp.api.impl.NetworkCmProxyDataServicePropertyHandler.PropertyType.PUBLIC_PROPERTY;
  29 import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NCMP_DATASPACE_NAME;
  30 import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NCMP_DMI_REGISTRY_ANCHOR;
  31 import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NCMP_DMI_REGISTRY_PARENT;
  32
  33 import com.google.common.collect.ImmutableMap;
  34 import java.time.OffsetDateTime;
  35 import java.util.ArrayList;
  36 import java.util.Collection;
  37 import java.util.HashMap;
  38 import java.util.HashSet;
  39 import java.util.LinkedHashMap;
  40 import java.util.List;
  41 import java.util.Map;
  42 import java.util.regex.Matcher;
  43 import java.util.regex.Pattern;
  44 import lombok.RequiredArgsConstructor;
  45 import lombok.extern.slf4j.Slf4j;
  46 import org.onap.cps.api.CpsDataService;
  47 import org.onap.cps.ncmp.api.impl.inventory.InventoryPersistence;
  48 import org.onap.cps.ncmp.api.impl.utils.CmHandleIdMapper;
  49 import org.onap.cps.ncmp.api.impl.utils.YangDataConverter;
  50 import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
  51 import org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse;
  52 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle;
  53 import org.onap.cps.spi.exceptions.DataNodeNotFoundException;
  54 import org.onap.cps.spi.exceptions.DataValidationException;
  55 import org.onap.cps.spi.model.DataNode;
  56 import org.onap.cps.spi.model.DataNodeBuilder;
  57 import org.onap.cps.utils.JsonObjectMapper;
  58 import org.springframework.stereotype.Service;
  59
  60 @Slf4j
  61 @Service
  62 @RequiredArgsConstructor
  63 //Accepting the security hotspot as the string checked is generated from inside code and not user input.
  64 @SuppressWarnings("squid:S5852")
  65 public class NetworkCmProxyDataServicePropertyHandler {
  66
  67     private final InventoryPersistence inventoryPersistence;
  68     private final CpsDataService cpsDataService;
  69     private final JsonObjectMapper jsonObjectMapper;
  70     private final CmHandleIdMapper cmHandleIdMapper;
  71
  72     /**
  73      * Iterates over incoming ncmpServiceCmHandles and update the dataNodes based on the updated attributes.
  74      * The attributes which are not passed will remain as is.
  75      *
  76      * @param ncmpServiceCmHandles collection of ncmpServiceCmHandles
  77      */
  78     public List<CmHandleRegistrationResponse> updateCmHandleProperties(
  79         final Collection<NcmpServiceCmHandle> ncmpServiceCmHandles) {
  80         final List<CmHandleRegistrationResponse> cmHandleRegistrationResponses = new ArrayList<>();
  81         for (final NcmpServiceCmHandle ncmpServiceCmHandle : ncmpServiceCmHandles) {
  82             final String cmHandleId = ncmpServiceCmHandle.getCmHandleId();
  83             try {
  84                 final DataNode existingCmHandleDataNode = inventoryPersistence.getCmHandleDataNode(cmHandleId)
  85                         .iterator().next();
  86                 updateAlternateId(existingCmHandleDataNode, ncmpServiceCmHandle);
  87                 processUpdates(existingCmHandleDataNode, ncmpServiceCmHandle);
  88                 cmHandleRegistrationResponses.add(CmHandleRegistrationResponse.createSuccessResponse(cmHandleId));
  89             } catch (final DataNodeNotFoundException e) {
  90                 log.error("Unable to find dataNode for cmHandleId : {} , caused by : {}", cmHandleId, e.getMessage());
  91                 cmHandleRegistrationResponses.add(
  92                     CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLES_NOT_FOUND));
  93             } catch (final DataValidationException e) {
  94                 log.error("Unable to update cm handle : {}, caused by : {}", cmHandleId, e.getMessage());
  95                 cmHandleRegistrationResponses.add(
  96                     CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLE_INVALID_ID));
  97             } catch (final Exception exception) {
  98                 log.error("Unable to update cmHandle : {} , caused by : {}", cmHandleId, exception.getMessage());
  99                 cmHandleRegistrationResponses.add(
 100                     CmHandleRegistrationResponse.createFailureResponse(cmHandleId, exception));
 101             }
 102         }
 103         return cmHandleRegistrationResponses;
 104     }
 105
 106     private void updateAlternateId(final DataNode existingCmHandleDataNode,
 107                                    final NcmpServiceCmHandle ncmpServiceCmHandle) {
 108         final String newAlternateId = ncmpServiceCmHandle.getAlternateId();
 109         if (cmHandleIdMapper.addMapping(ncmpServiceCmHandle.getCmHandleId(), newAlternateId)) {
 110             try {
 111                 final YangModelCmHandle yangModelCmHandle =
 112                         YangDataConverter.convertCmHandleToYangModel(existingCmHandleDataNode,
 113                                 ncmpServiceCmHandle.getCmHandleId());
 114                 setAndUpdateAlternateId(yangModelCmHandle, newAlternateId);
 115             } catch (final Exception e) {
 116                 cmHandleIdMapper.removeMapping(ncmpServiceCmHandle.getCmHandleId());
 117                 throw e;
 118             }
 119         }
 120     }
 121
 122     private void processUpdates(final DataNode existingCmHandleDataNode, final NcmpServiceCmHandle incomingCmHandle) {
 123         if (!incomingCmHandle.getPublicProperties().isEmpty()) {
 124             updateProperties(existingCmHandleDataNode, PUBLIC_PROPERTY, incomingCmHandle.getPublicProperties());
 125         }
 126         if (!incomingCmHandle.getDmiProperties().isEmpty()) {
 127             updateProperties(existingCmHandleDataNode, DMI_PROPERTY, incomingCmHandle.getDmiProperties());
 128         }
 129     }
 130
 131     private void updateProperties(final DataNode existingCmHandleDataNode, final PropertyType propertyType,
 132             final Map<String, String> incomingProperties) {
 133         final Collection<DataNode> replacementPropertyDataNodes =
 134                 getReplacementDataNodes(existingCmHandleDataNode, propertyType, incomingProperties);
 135         replacementPropertyDataNodes.addAll(
 136                 getUnchangedPropertyDataNodes(existingCmHandleDataNode, propertyType, incomingProperties));
 137         if (replacementPropertyDataNodes.isEmpty()) {
 138             removeAllProperties(existingCmHandleDataNode, propertyType);
 139         } else {
 140             inventoryPersistence.replaceListContent(existingCmHandleDataNode.getXpath(), replacementPropertyDataNodes);
 141         }
 142     }
 143
 144     private void removeAllProperties(final DataNode existingCmHandleDataNode, final PropertyType propertyType) {
 145         existingCmHandleDataNode.getChildDataNodes().forEach(dataNode -> {
 146             final Matcher matcher = propertyType.propertyXpathPattern.matcher(dataNode.getXpath());
 147             if (matcher.find()) {
 148                 log.info("Deleting dataNode with xpath : [{}]", dataNode.getXpath());
 149                 inventoryPersistence.deleteDataNode(dataNode.getXpath());
 150             }
 151         });
 152     }
 153
 154     private Collection<DataNode> getUnchangedPropertyDataNodes(final DataNode existingCmHandleDataNode,
 155             final PropertyType propertyType, final Map<String, String> incomingProperties) {
 156         final Collection<DataNode> unchangedPropertyDataNodes = new HashSet<>();
 157         for (final DataNode existingPropertyDataNode : existingCmHandleDataNode.getChildDataNodes()) {
 158             final Matcher matcher = propertyType.propertyXpathPattern.matcher(existingPropertyDataNode.getXpath());
 159             if (matcher.find()) {
 160                 final String keyName = matcher.group(2);
 161                 if (!incomingProperties.containsKey(keyName)) {
 162                     unchangedPropertyDataNodes.add(existingPropertyDataNode);
 163                 }
 164             }
 165         }
 166         return unchangedPropertyDataNodes;
 167     }
 168
 169     private Collection<DataNode> getReplacementDataNodes(final DataNode existingCmHandleDataNode,
 170             final PropertyType propertyType, final Map<String, String> incomingProperties) {
 171         final Collection<DataNode> replacementPropertyDataNodes = new HashSet<>();
 172         incomingProperties.forEach((updatedAttributeKey, updatedAttributeValue) -> {
 173             final String propertyXpath = getAttributeXpath(existingCmHandleDataNode, propertyType, updatedAttributeKey);
 174             if (updatedAttributeValue != null) {
 175                 log.info("Creating a new DataNode with xpath {} , key : {} and value : {}", propertyXpath,
 176                         updatedAttributeKey, updatedAttributeValue);
 177                 replacementPropertyDataNodes.add(
 178                         buildDataNode(propertyXpath, updatedAttributeKey, updatedAttributeValue));
 179             }
 180         });
 181         return replacementPropertyDataNodes;
 182     }
 183
 184     private String getAttributeXpath(final DataNode cmHandle, final PropertyType propertyType,
 185             final String attributeKey) {
 186         return cmHandle.getXpath() + "/" + propertyType.xpathPrefix + String.format("[@name='%s']", attributeKey);
 187     }
 188
 189     private DataNode buildDataNode(final String xpath, final String attributeKey, final String attributeValue) {
 190         final Map<String, String> updatedLeaves = new LinkedHashMap<>(1);
 191         updatedLeaves.put("name", attributeKey);
 192         updatedLeaves.put("value", attributeValue);
 193         log.debug("Building a new node with xpath {} with leaves (name : {} , value : {})", xpath, attributeKey,
 194                 attributeValue);
 195         return new DataNodeBuilder().withXpath(xpath).withLeaves(ImmutableMap.copyOf(updatedLeaves)).build();
 196     }
 197
 198     private void setAndUpdateAlternateId(final YangModelCmHandle upgradedCmHandle, final String alternateId) {
 199         final Map<String, Map<String, String>> dmiRegistryProperties = new HashMap<>(1);
 200         final Map<String, String> cmHandleProperties = new HashMap<>(2);
 201         cmHandleProperties.put("id", upgradedCmHandle.getId());
 202         cmHandleProperties.put("alternate-id", alternateId);
 203         dmiRegistryProperties.put("cm-handles", cmHandleProperties);
 204         cpsDataService.updateNodeLeaves(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR, NCMP_DMI_REGISTRY_PARENT,
 205                 jsonObjectMapper.asJsonString(dmiRegistryProperties), OffsetDateTime.now());
 206         log.info("Updating alternateId for cmHandle {} with value : {})", upgradedCmHandle.getId(), alternateId);
 207     }
 208
 209     enum PropertyType {
 210         DMI_PROPERTY("additional-properties"), PUBLIC_PROPERTY("public-properties");
 211
 212         private static final String LIST_INDEX_PATTERN = "\\[@(\\w+)[^\\/]'([^']+)']";
 213
 214         final String xpathPrefix;
 215         final Pattern propertyXpathPattern;
 216
 217         PropertyType(final String xpathPrefix) {
 218             this.xpathPrefix = xpathPrefix;
 219             this.propertyXpathPattern = Pattern.compile(xpathPrefix + LIST_INDEX_PATTERN);
 220         }
 221     }
 222 }