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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2019 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.openecomp.core.converter.impl.pnfd.parser;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
import org.apache.commons.collections.MapUtils;
import org.onap.sdc.tosca.datatypes.model.NodeTemplate;
import org.openecomp.core.converter.impl.pnfd.PnfdQueryExecutor;
import org.openecomp.core.converter.impl.pnfd.strategy.CopyConversionStrategy;
import org.openecomp.core.converter.pnfd.model.ConversionDefinition;
import org.openecomp.core.converter.pnfd.model.ConversionQuery;
import org.openecomp.core.converter.pnfd.model.Transformation;
import org.openecomp.core.converter.pnfd.strategy.PnfdConversionStrategy;
import org.openecomp.sdc.tosca.services.DataModelUtil;
public class PnfdNodeTemplateBlockParser extends AbstractPnfdBlockParser {
private Map<String, String> inputNameToConvertMap = new HashMap<>();
public PnfdNodeTemplateBlockParser(final Transformation transformation) {
super(transformation);
}
@Override
protected Set<Map<String, Object>> findBlocksToParse() {
final ConversionQuery conversionQuery = transformation.getConversionQuery();
final Map<String, Object> nodeTemplateMap = templateFrom.getNodeTemplates();
if (MapUtils.isEmpty(nodeTemplateMap)) {
return Collections.emptySet();
}
return nodeTemplateMap.entrySet().stream()
.filter(mapEntry -> PnfdQueryExecutor.find(conversionQuery, mapEntry.getValue()))
.map(stringObjectEntry -> {
final Map<String, Object> map = new HashMap<>();
map.put(stringObjectEntry.getKey(), stringObjectEntry.getValue());
return map;
}).collect(Collectors.toSet());
}
@Override
protected Optional<Map<String, Object>> buildParsedBlock(final Map<String, Object> attributeQuery,
final Map<String, Object> fromNodeTemplateAttributeMap,
final ConversionDefinition conversionDefinition) {
//cannot query for more than one attribute
if (attributeQuery.keySet().size() > 1) {
return Optional.empty();
}
final String attribute = attributeQuery.keySet().iterator().next();
final Object queryValue = attributeQuery.get(attribute);
final Object attributeValueToConvert = fromNodeTemplateAttributeMap.get(attribute);
if (queryValue == null) {
PnfdConversionStrategy pnfdConversionStrategy = conversionDefinition.getPnfdConversionStrategy();
if (isGetInputFunction(attributeValueToConvert)) {
inputNameToConvertMap.put(extractObjectValue(attributeValueToConvert)
, conversionDefinition.getToGetInput()
);
pnfdConversionStrategy = new CopyConversionStrategy();
}
final Map<String, Object> parsedNodeTemplate = new HashMap<>();
final Optional convertedAttribute = pnfdConversionStrategy.convert(attributeValueToConvert);
if (convertedAttribute.isPresent()) {
parsedNodeTemplate.put(conversionDefinition.getToAttributeName(), convertedAttribute.get());
}
return parsedNodeTemplate.isEmpty() ? Optional.empty() : Optional.of(parsedNodeTemplate);
} else {
if (!(queryValue instanceof Map) || !(attributeValueToConvert instanceof Map)) {
return Optional.empty();
}
final Map<String, Object> parsedNodeTemplate = new HashMap<>();
final Optional<Map<String, Object>> builtNodeTemplate = buildParsedBlock(
(Map<String, Object>) queryValue,
(Map<String, Object>) attributeValueToConvert, conversionDefinition);
builtNodeTemplate.ifPresent(builtNodeTemplate1 -> parsedNodeTemplate.put(attribute, builtNodeTemplate1));
return parsedNodeTemplate.isEmpty() ? Optional.empty() : Optional.of(parsedNodeTemplate);
}
}
@Override
protected void write(final String nodeTemplateName, final Map<String, Object> parsedNodeTemplateMap) {
if (!parsedNodeTemplateMap.isEmpty()) {
final NodeTemplate parsedNodeTemplate = NodeTemplateYamlParser.parse(parsedNodeTemplateMap);
DataModelUtil.addNodeTemplate(templateTo, nodeTemplateName, parsedNodeTemplate);
}
}
@Override
public Optional<Map<String, String>> getInputAndTransformationNameMap() {
return Optional.of(inputNameToConvertMap);
}
}
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