2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2020 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.sdc.be.plugins.etsi.nfv.nsd.tosca.yaml;
22 import org.openecomp.sdc.be.tosca.model.ToscaTemplate;
23 import org.springframework.beans.factory.config.BeanDefinition;
24 import org.springframework.context.annotation.Scope;
25 import org.springframework.stereotype.Component;
26 import org.yaml.snakeyaml.DumperOptions;
27 import org.yaml.snakeyaml.DumperOptions.FlowStyle;
28 import org.yaml.snakeyaml.Yaml;
29 import org.yaml.snakeyaml.nodes.Tag;
30 import org.yaml.snakeyaml.representer.Representer;
33 * Handles a Tosca Template YAML parsing
36 @Scope(BeanDefinition.SCOPE_PROTOTYPE)
37 public class ToscaTemplateYamlGenerator {
39 private final ToscaTemplate toscaTemplate;
40 private final Representer representer;
41 private final DumperOptions dumperOptions;
43 public ToscaTemplateYamlGenerator(final ToscaTemplate toscaTemplate) {
44 this.toscaTemplate = toscaTemplate;
45 this.representer = new NsdTemplateRepresenter();
47 this.dumperOptions = new DumperOptions();
52 * Parses the ToscaTemplate to a String YAML.
54 * @return the YAML representing the ToscaTemplate
56 public String parseToYamlString() {
57 final Yaml yaml = new Yaml(representer, dumperOptions);
58 return yaml.dumpAsMap(toscaTemplate);
61 private void initDumperOptions() {
62 dumperOptions.setAllowReadOnlyProperties(false);
63 dumperOptions.setPrettyFlow(true);
64 dumperOptions.setDefaultFlowStyle(FlowStyle.FLOW);
65 dumperOptions.setCanonical(false);
68 private void initRepresenter() {
69 representer.addClassTag(toscaTemplate.getClass(), Tag.MAP);
70 representer.setPropertyUtils(new UnsortedPropertyUtils());