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

   1 /*
   2  *  ============LICENSE_START=======================================================
   3  *  Copyright (C) 2022 Nordix Foundation
   4  *  ================================================================================
   5  *  Licensed under the Apache License, Version 2.0 (the "License");
   6  *  you may not use this file except in compliance with the License.
   7  *  You may obtain a copy of the License at
   8  *
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *  Unless required by applicable law or agreed to in writing, software
  12  *  distributed under the License is distributed on an "AS IS" BASIS,
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *  See the License for the specific language governing permissions and
  15  *  limitations under the License.
  16  *
  17  *  SPDX-License-Identifier: Apache-2.0
  18  *  ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.cps.ncmp.api.impl;
  22
  23 import static org.onap.cps.ncmp.api.impl.constants.DmiRegistryConstants.NCMP_DATASPACE_NAME;
  24 import static org.onap.cps.ncmp.api.impl.constants.DmiRegistryConstants.NCMP_DMI_REGISTRY_ANCHOR;
  25 import static org.onap.cps.spi.FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS;
  26 import static org.onap.cps.utils.CmHandleQueryRestParametersValidator.validateModuleNameConditionProperties;
  27
  28 import java.util.ArrayList;
  29 import java.util.Collection;
  30 import java.util.Collections;
  31 import java.util.HashMap;
  32 import java.util.List;
  33 import java.util.Map;
  34 import java.util.stream.Collectors;
  35 import lombok.RequiredArgsConstructor;
  36 import lombok.extern.slf4j.Slf4j;
  37 import org.onap.cps.ncmp.api.NetworkCmProxyCmHandlerQueryService;
  38 import org.onap.cps.spi.CpsAdminPersistenceService;
  39 import org.onap.cps.spi.CpsDataPersistenceService;
  40 import org.onap.cps.spi.model.Anchor;
  41 import org.onap.cps.spi.model.CmHandleQueryServiceParameters;
  42 import org.onap.cps.spi.model.ConditionProperties;
  43 import org.onap.cps.spi.model.DataNode;
  44 import org.onap.cps.spi.model.DataNodeIdentifier;
  45 import org.onap.cps.utils.JsonObjectMapper;
  46 import org.springframework.stereotype.Service;
  47
  48 @Service
  49 @Slf4j
  50 @RequiredArgsConstructor
  51 public class NetworkCmProxyCmHandlerQueryServiceImpl implements NetworkCmProxyCmHandlerQueryService {
  52
  53     private static final String PROPERTY_QUERY_NAME = "hasAllProperties";
  54     private static final String MODULE_QUERY_NAME = "hasAllModules";
  55     private final CpsDataPersistenceService cpsDataPersistenceService;
  56     private final CpsAdminPersistenceService cpsAdminPersistenceService;
  57     private final JsonObjectMapper jsonObjectMapper;
  58
  59     /**
  60      * Query and return cm handles that match the given query parameters.
  61      *
  62      * @param cmHandleQueryServiceParameters the cm handle query parameters
  63      * @return collection of cm handles
  64      */
  65     @Override
  66     public Collection<DataNode> queryCmHandles(final CmHandleQueryServiceParameters cmHandleQueryServiceParameters) {
  67
  68         if (cmHandleQueryServiceParameters.getCmHandleQueryParameters().isEmpty()) {
  69             return getAllCmHandles();
  70         }
  71
  72         final Collection<DataNodeIdentifier> amalgamatedQueryResultIdentifiers = new ArrayList<>();
  73         final Map<DataNodeIdentifier, DataNode> amalgamatedQueryResults = new HashMap<>();
  74
  75         final boolean firstQuery = moduleNameQuery(cmHandleQueryServiceParameters,
  76                 amalgamatedQueryResultIdentifiers, amalgamatedQueryResults);
  77
  78         publicPropertyQuery(cmHandleQueryServiceParameters, amalgamatedQueryResultIdentifiers,
  79                 amalgamatedQueryResults, firstQuery);
  80
  81         final Collection<DataNode> filteredDataNodes = new ArrayList<>();
  82         amalgamatedQueryResultIdentifiers.forEach(amalgamatedQueryResultIdentifier ->
  83             filteredDataNodes.add(amalgamatedQueryResults.get(amalgamatedQueryResultIdentifier))
  84         );
  85
  86         return filteredDataNodes;
  87     }
  88
  89     private void publicPropertyQuery(final CmHandleQueryServiceParameters cmHandleQueryServiceParameters,
  90                                      final Collection<DataNodeIdentifier> amalgamatedQueryResultIdentifiers,
  91                                      final Map<DataNodeIdentifier, DataNode> amalgamatedQueryResults,
  92                                      boolean firstQuery) {
  93         for (final Map.Entry<String, String> entry :
  94                 getPublicPropertyPairs(cmHandleQueryServiceParameters.getCmHandleQueryParameters()).entrySet()) {
  95             final String cmHandlePath = "//public-properties[@name='" + entry.getKey() + "' " + "and @value='"
  96                     + entry.getValue() + "']" + "/ancestor::cm-handles";
  97
  98             final Collection<DataNode> dataNodes = getDataNodes(cmHandlePath);
  99
 100             if (firstQuery) {
 101                 firstQuery = false;
 102                 dataNodes.forEach(dataNode -> {
 103                     final DataNodeIdentifier dataNodeIdentifier =
 104                             jsonObjectMapper.convertToValueType(dataNode, DataNodeIdentifier.class);
 105                     amalgamatedQueryResultIdentifiers.add(dataNodeIdentifier);
 106                     amalgamatedQueryResults.put(dataNodeIdentifier, dataNode);
 107                 });
 108             } else {
 109                 final Collection<DataNodeIdentifier> singleConditionQueryDataNodeIdentifiers = new ArrayList<>();
 110                 dataNodes.forEach(dataNode -> {
 111                     final DataNodeIdentifier dataNodeIdentifier =
 112                             jsonObjectMapper.convertToValueType(dataNode, DataNodeIdentifier.class);
 113                     singleConditionQueryDataNodeIdentifiers.add(dataNodeIdentifier);
 114                     amalgamatedQueryResults.put(dataNodeIdentifier, dataNode);
 115                 });
 116                 amalgamatedQueryResultIdentifiers.retainAll(singleConditionQueryDataNodeIdentifiers);
 117             }
 118
 119             if (amalgamatedQueryResultIdentifiers.isEmpty()) {
 120                 break;
 121             }
 122         }
 123     }
 124
 125     private boolean moduleNameQuery(final CmHandleQueryServiceParameters cmHandleQueryServiceParameters,
 126                                     final Collection<DataNodeIdentifier> amalgamatedQueryResultIdentifiers,
 127                                     final Map<DataNodeIdentifier, DataNode> amalgamatedQueryResults) {
 128         boolean firstQuery = true;
 129         if (!getModuleNames(cmHandleQueryServiceParameters.getCmHandleQueryParameters()).isEmpty()) {
 130             final Collection<String> anchorNames = cpsAdminPersistenceService.queryAnchors("NFP-Operational",
 131                     getModuleNames(cmHandleQueryServiceParameters.getCmHandleQueryParameters()))
 132                     .parallelStream().map(Anchor::getName).collect(Collectors.toList());
 133
 134             getAllCmHandles().forEach(dataNode -> {
 135                 if (anchorNames.contains(dataNode.getLeaves().get("id").toString())) {
 136                     final DataNodeIdentifier dataNodeIdentifier =
 137                             jsonObjectMapper.convertToValueType(dataNode, DataNodeIdentifier.class);
 138                     amalgamatedQueryResultIdentifiers.add(dataNodeIdentifier);
 139                     amalgamatedQueryResults.put(dataNodeIdentifier, dataNode);
 140                 }
 141             });
 142
 143             firstQuery = false;
 144         }
 145         return firstQuery;
 146     }
 147
 148     private List<Map<String, String>> getConditions(final List<ConditionProperties> conditionProperties,
 149                                                     final String name) {
 150         for (final ConditionProperties conditionProperty : conditionProperties) {
 151             if (conditionProperty.getConditionName().equals(name)) {
 152                 return conditionProperty.getConditionParameters();
 153             }
 154         }
 155         return Collections.emptyList();
 156     }
 157
 158     private List<String> getModuleNames(final List<ConditionProperties> conditionProperties) {
 159         final List<String> result = new ArrayList<>();
 160         getConditions(conditionProperties, MODULE_QUERY_NAME).parallelStream().forEach(
 161                 conditionProperty -> {
 162                     validateModuleNameConditionProperties(conditionProperty);
 163                     result.add(conditionProperty.get("moduleName"));
 164                 }
 165         );
 166         return result;
 167     }
 168
 169     private Map<String, String> getPublicPropertyPairs(final List<ConditionProperties> conditionProperties) {
 170         final Map<String, String> result = new HashMap<>();
 171         getConditions(conditionProperties, PROPERTY_QUERY_NAME).forEach(result::putAll);
 172         return result;
 173     }
 174
 175     private Collection<DataNode> getAllCmHandles() {
 176         return getDataNodes("//public-properties/ancestor::cm-handles");
 177     }
 178
 179     private List<DataNode> getDataNodes(final String cmHandlePath) {
 180         return cpsDataPersistenceService.queryDataNodes(
 181                 NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR, cmHandlePath, INCLUDE_ALL_DESCENDANTS);
 182     }
 183 }