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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 static org.openecomp.core.converter.pnfd.model.PnfTransformationToken.CONVERSIONS;
import static org.openecomp.core.converter.pnfd.model.PnfTransformationToken.DESCRIPTION;
import static org.openecomp.core.converter.pnfd.model.PnfTransformationToken.NAME;
import static org.openecomp.core.converter.pnfd.model.PnfTransformationToken.QUERY;
import static org.openecomp.core.converter.pnfd.model.PnfTransformationToken.TRANSFORMATION_FOR;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import org.apache.commons.collections.CollectionUtils;
import org.openecomp.core.converter.pnfd.model.ConversionDefinition;
import org.openecomp.core.converter.pnfd.model.Transformation;
import org.openecomp.core.converter.pnfd.model.TransformationBlock;
/**
* Handles YAML from/to {@link Transformation} conversions
*/
public class TransformationYamlParser {
private TransformationYamlParser() {
}
/**
* Parses the given YAML object to a {@link Transformation} instance.
* @param transformationYaml the YAML object representing a transformation
* @return
* A new instance of {@link Transformation}.
*/
public static Transformation parse(final Map<String, Object> transformationYaml) {
final Transformation transformation = new Transformation();
transformation.setName((String) transformationYaml.get(NAME.getName()));
transformation.setDescription((String) transformationYaml.get(DESCRIPTION.getName()));
final String block = (String) transformationYaml.get(TRANSFORMATION_FOR.getName());
transformation.setBlock(TransformationBlock.parse(block).orElse(null));
transformation.setConversionQuery(
ConversionQueryYamlParser.parse(transformationYaml.get(QUERY.getName()))
);
transformation.setConversionDefinitionList(parseConversions(transformationYaml));
return transformation;
}
private static List<ConversionDefinition> parseConversions(final Map<String, Object> conversionYaml) {
final List<Object> conversionList = (List<Object>) conversionYaml.get(CONVERSIONS.getName());
if (CollectionUtils.isEmpty(conversionList)) {
return Collections.emptyList();
}
return conversionList.stream()
.map(conversion -> ConversionDefinitionYamlParser.parse((Map<String, Object>) conversion))
.collect(Collectors.toList());
}
}
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