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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.impl;
import static org.onap.cps.ncmp.api.impl.constants.DmiRegistryConstants.NCMP_DATASPACE_NAME;
import static org.onap.cps.ncmp.api.impl.constants.DmiRegistryConstants.NCMP_DMI_REGISTRY_ANCHOR;
import static org.onap.cps.spi.FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS;
import static org.onap.cps.utils.CmHandleQueryRestParametersValidator.validateModuleNameConditionProperties;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.onap.cps.ncmp.api.NetworkCmProxyCmHandlerQueryService;
import org.onap.cps.spi.CpsAdminPersistenceService;
import org.onap.cps.spi.CpsDataPersistenceService;
import org.onap.cps.spi.model.Anchor;
import org.onap.cps.spi.model.CmHandleQueryParameters;
import org.onap.cps.spi.model.ConditionProperties;
import org.onap.cps.spi.model.DataNode;
import org.onap.cps.spi.model.DataNodeIdentifier;
import org.onap.cps.utils.JsonObjectMapper;
import org.springframework.stereotype.Service;
@Service
@Slf4j
@RequiredArgsConstructor
public class NetworkCmProxyCmHandlerQueryServiceImpl implements NetworkCmProxyCmHandlerQueryService {
private static final String PROPERTY_QUERY_NAME = "hasAllProperties";
private static final String MODULE_QUERY_NAME = "hasAllModules";
private final CpsDataPersistenceService cpsDataPersistenceService;
private final CpsAdminPersistenceService cpsAdminPersistenceService;
private final JsonObjectMapper jsonObjectMapper;
/**
* Query and return cm handles that match the given query parameters.
*
* @param cmHandleQueryParameters the cm handle query parameters
* @return collection of cm handles
*/
@Override
public Collection<DataNode> queryCmHandles(final CmHandleQueryParameters cmHandleQueryParameters) {
if (cmHandleQueryParameters.getCmHandleQueryParameters().isEmpty()) {
return getAllCmHandles();
}
final Collection<DataNodeIdentifier> amalgamatedQueryResultIdentifiers = new ArrayList<>();
final Map<DataNodeIdentifier, DataNode> amalgamatedQueryResults = new HashMap<>();
final boolean firstQuery = moduleNameQuery(cmHandleQueryParameters,
amalgamatedQueryResultIdentifiers, amalgamatedQueryResults);
publicPropertyQuery(cmHandleQueryParameters, amalgamatedQueryResultIdentifiers,
amalgamatedQueryResults, firstQuery);
final Collection<DataNode> filteredDataNodes = new ArrayList<>();
amalgamatedQueryResultIdentifiers.forEach(amalgamatedQueryResultIdentifier ->
filteredDataNodes.add(amalgamatedQueryResults.get(amalgamatedQueryResultIdentifier))
);
return filteredDataNodes;
}
private void publicPropertyQuery(final CmHandleQueryParameters cmHandleQueryParameters,
final Collection<DataNodeIdentifier> amalgamatedQueryResultIdentifiers,
final Map<DataNodeIdentifier, DataNode> amalgamatedQueryResults,
boolean firstQuery) {
for (final Map.Entry<String, String> entry :
getPublicPropertyPairs(cmHandleQueryParameters.getCmHandleQueryParameters()).entrySet()) {
final String cmHandlePath = "//public-properties[@name='" + entry.getKey() + "' " + "and @value='"
+ entry.getValue() + "']" + "/ancestor::cm-handles";
final Collection<DataNode> dataNodes = getDataNodes(cmHandlePath);
if (firstQuery) {
firstQuery = false;
dataNodes.forEach(dataNode -> {
final DataNodeIdentifier dataNodeIdentifier =
jsonObjectMapper.convertToValueType(dataNode, DataNodeIdentifier.class);
amalgamatedQueryResultIdentifiers.add(dataNodeIdentifier);
amalgamatedQueryResults.put(dataNodeIdentifier, dataNode);
});
} else {
final Collection<DataNodeIdentifier> singleConditionQueryDataNodeIdentifiers = new ArrayList<>();
dataNodes.forEach(dataNode -> {
final DataNodeIdentifier dataNodeIdentifier =
jsonObjectMapper.convertToValueType(dataNode, DataNodeIdentifier.class);
singleConditionQueryDataNodeIdentifiers.add(dataNodeIdentifier);
amalgamatedQueryResults.put(dataNodeIdentifier, dataNode);
});
amalgamatedQueryResultIdentifiers.retainAll(singleConditionQueryDataNodeIdentifiers);
}
if (amalgamatedQueryResultIdentifiers.isEmpty()) {
break;
}
}
}
private boolean moduleNameQuery(final CmHandleQueryParameters cmHandleQueryParameters,
final Collection<DataNodeIdentifier> amalgamatedQueryResultIdentifiers,
final Map<DataNodeIdentifier, DataNode> amalgamatedQueryResults) {
boolean firstQuery = true;
if (!getModuleNames(cmHandleQueryParameters.getCmHandleQueryParameters()).isEmpty()) {
final Collection<Anchor> anchors = cpsAdminPersistenceService.queryAnchors("NFP-Operational",
getModuleNames(cmHandleQueryParameters.getCmHandleQueryParameters()));
anchors.forEach(anchor -> {
final List<DataNode> dataNodes = getDataNodes("//cm-handles[@id='" + anchor.getName() + "']");
dataNodes.parallelStream().forEach(dataNode -> {
final DataNodeIdentifier dataNodeIdentifier =
jsonObjectMapper.convertToValueType(dataNode, DataNodeIdentifier.class);
amalgamatedQueryResultIdentifiers.add(dataNodeIdentifier);
amalgamatedQueryResults.put(dataNodeIdentifier, dataNode);
});
});
firstQuery = false;
}
return firstQuery;
}
private List<Map<String, String>> getConditions(final List<ConditionProperties> conditionProperties,
final String name) {
for (final ConditionProperties conditionProperty : conditionProperties) {
if (conditionProperty.getConditionName().equals(name)) {
return conditionProperty.getConditionParameters();
}
}
return Collections.emptyList();
}
private List<String> getModuleNames(final List<ConditionProperties> conditionProperties) {
final List<String> result = new ArrayList<>();
getConditions(conditionProperties, MODULE_QUERY_NAME).parallelStream().forEach(
conditionProperty -> {
validateModuleNameConditionProperties(conditionProperty);
result.add(conditionProperty.get("moduleName"));
}
);
return result;
}
private Map<String, String> getPublicPropertyPairs(final List<ConditionProperties> conditionProperties) {
final Map<String, String> result = new HashMap<>();
getConditions(conditionProperties, PROPERTY_QUERY_NAME).forEach(result::putAll);
return result;
}
private Collection<DataNode> getAllCmHandles() {
return getDataNodes("//public-properties/ancestor::cm-handles");
}
private List<DataNode> getDataNodes(final String cmHandlePath) {
return cpsDataPersistenceService.queryDataNodes(
NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR, cmHandlePath, INCLUDE_ALL_DESCENDANTS);
}
}
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