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3 * Copyright © 2020-2021 Nokia
5 * Licensed under the Apache License, Version 2.0 (the "License");
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9 * http://www.apache.org/licenses/LICENSE-2.0
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12 * distributed under the License is distributed on an "AS IS" BASIS,
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14 * See the License for the specific language governing permissions and
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17 package org.openecomp.sdc.validation.impl.validators;
19 import java.io.InputStream;
20 import java.util.Collection;
22 import java.util.Optional;
24 import org.onap.sdc.tosca.services.MyPropertyUtils;
25 import org.onap.sdc.tosca.services.StrictMapAppenderConstructor;
26 import org.openecomp.core.validation.ErrorMessageCode;
27 import org.openecomp.core.validation.errors.ErrorMessagesFormatBuilder;
28 import org.openecomp.core.validation.types.GlobalValidationContext;
29 import org.openecomp.sdc.common.errors.Messages;
30 import org.openecomp.sdc.datatypes.error.ErrorLevel;
31 import org.openecomp.sdc.validation.Validator;
32 import org.openecomp.sdc.validation.impl.util.YamlValidatorUtil;
33 import org.yaml.snakeyaml.DumperOptions;
34 import org.yaml.snakeyaml.LoaderOptions;
35 import org.yaml.snakeyaml.TypeDescription;
36 import org.yaml.snakeyaml.Yaml;
37 import org.yaml.snakeyaml.constructor.Constructor;
38 import org.yaml.snakeyaml.representer.Representer;
40 public class YamlValidator implements Validator {
42 private static final ErrorMessageCode ERROR_CODE_YML_1 = new ErrorMessageCode("YML1");
43 private static final ErrorMessageCode ERROR_CODE_YML_2 = new ErrorMessageCode("YML2");
46 public void validate(GlobalValidationContext globalContext) {
47 Set<String> pmDictionaryFiles = GlobalContextUtil.findPmDictionaryFiles(globalContext);
48 Collection<String> files = globalContext
49 .files((fileName, globalValidationContext) -> FileExtensionUtils.isYaml(fileName) && !pmDictionaryFiles.contains(fileName));
50 files.forEach(fileName -> validate(fileName, globalContext));
53 private void validate(String fileName, GlobalValidationContext globalContext) {
54 Optional<InputStream> rowContent = globalContext.getFileContent(fileName);
55 if (rowContent.isEmpty()) {
56 globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
57 .getErrorWithParameters(ERROR_CODE_YML_1, Messages.INVALID_YAML_FORMAT_REASON.getErrorMessage(),
58 Messages.EMPTY_YAML_FILE.getErrorMessage()));
59 return; /* no need to continue validation */
62 try (var yamlContent = rowContent.get()) {
63 Constructor constructor = new StrictMapAppenderConstructor(Map.class);
64 constructor.setAllowDuplicateKeys(false);
65 constructor.setPropertyUtils(new MyPropertyUtils());
66 TypeDescription yamlFileDescription = new TypeDescription(Map.class);
67 constructor.addTypeDescription(yamlFileDescription);
68 LoaderOptions options = new LoaderOptions();
69 options.setAllowDuplicateKeys(false);
70 //No Yaml Constructor takes only Constructor and LoaderOptions, that is why I had to pass anonymous Representer and DumperOptions objects
71 Object yamlObj = new Yaml(constructor, new Representer(), new DumperOptions(), options).load(yamlContent);
73 if (yamlObj == null) {
74 throw new Exception();
76 } catch (Exception exception) {
77 globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
78 .getErrorWithParameters(ERROR_CODE_YML_2, Messages
79 .INVALID_YAML_FORMAT_REASON.getErrorMessage(),
80 YamlValidatorUtil.getParserExceptionReason(exception)));