2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 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
9 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 * SPDX-License-Identifier: Apache-2.0
17 * ============LICENSE_END=========================================================
20 package org.openecomp.core.converter.impl.pnfd.parser;
22 import java.util.List;
24 import java.util.Optional;
25 import org.openecomp.core.converter.pnfd.model.ConversionStrategyType;
26 import org.openecomp.core.converter.pnfd.model.PnfTransformationToken;
27 import org.openecomp.core.converter.impl.pnfd.strategy.CopyConversionStrategy;
28 import org.openecomp.core.converter.pnfd.strategy.PnfdConversionStrategy;
29 import org.openecomp.core.converter.impl.pnfd.strategy.ReplaceConversionStrategy;
30 import org.openecomp.core.converter.impl.pnfd.strategy.ReplaceInListConversionStrategy;
34 * Handles YAML from/to {@link PnfdConversionStrategy} conversions.
36 public class PnfdConversionStrategyYamlParser {
38 private PnfdConversionStrategyYamlParser() {
43 * Parses the given YAML object to a {@link PnfdConversionStrategy} instance.
44 * @param strategyYaml the YAML object representing a conversion strategy
46 * A new instance of {@link PnfdConversionStrategy}.
48 public static Optional<PnfdConversionStrategy> parse(final Map<String, Object> strategyYaml) {
49 final Optional<ConversionStrategyType> optionalStrategy = ConversionStrategyType.parse(
50 (String) strategyYaml.get(PnfTransformationToken.STRATEGY.getName())
53 if (!optionalStrategy.isPresent()) {
54 return Optional.empty();
57 final ConversionStrategyType strategyType = optionalStrategy.get();
58 if (strategyType == ConversionStrategyType.COPY) {
59 return Optional.of(new CopyConversionStrategy());
61 if (strategyType == ConversionStrategyType.REPLACE) {
62 final Object from = strategyYaml.get(PnfTransformationToken.FROM.getName());
63 final Object to = strategyYaml.get(PnfTransformationToken.TO.getName());
64 return Optional.of(new ReplaceConversionStrategy(from, to));
66 if (strategyType == ConversionStrategyType.REPLACE_IN_LIST) {
67 return Optional.of(new ReplaceInListConversionStrategy(
68 (List<Map<String, Object>>) strategyYaml.get(PnfTransformationToken.LIST.getName()))
71 return Optional.empty();