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/*
* Copyright © 2016-2017 European Support Limited
* Copyright © 2020-2021 Nokia
*
* 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.
*/
package org.openecomp.sdc.validation.impl.validators;
import java.io.InputStream;
import java.util.Collection;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import org.onap.sdc.tosca.services.MyPropertyUtils;
import org.onap.sdc.tosca.services.StrictMapAppenderConstructor;
import org.openecomp.core.validation.ErrorMessageCode;
import org.openecomp.core.validation.errors.ErrorMessagesFormatBuilder;
import org.openecomp.core.validation.types.GlobalValidationContext;
import org.openecomp.sdc.common.errors.Messages;
import org.openecomp.sdc.datatypes.error.ErrorLevel;
import org.openecomp.sdc.validation.Validator;
import org.openecomp.sdc.validation.impl.util.YamlValidatorUtil;
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.LoaderOptions;
import org.yaml.snakeyaml.TypeDescription;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.representer.Representer;
public class YamlValidator implements Validator {
private static final ErrorMessageCode ERROR_CODE_YML_1 = new ErrorMessageCode("YML1");
private static final ErrorMessageCode ERROR_CODE_YML_2 = new ErrorMessageCode("YML2");
@Override
public void validate(GlobalValidationContext globalContext) {
Set<String> pmDictionaryFiles = GlobalContextUtil.findPmDictionaryFiles(globalContext);
Collection<String> files = globalContext
.files((fileName, globalValidationContext) -> FileExtensionUtils.isYaml(fileName) && !pmDictionaryFiles.contains(fileName));
files.forEach(fileName -> validate(fileName, globalContext));
}
private void validate(String fileName, GlobalValidationContext globalContext) {
Optional<InputStream> rowContent = globalContext.getFileContent(fileName);
if (rowContent.isEmpty()) {
globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
.getErrorWithParameters(ERROR_CODE_YML_1, Messages.INVALID_YAML_FORMAT_REASON.getErrorMessage(),
Messages.EMPTY_YAML_FILE.getErrorMessage()));
return; /* no need to continue validation */
}
try (var yamlContent = rowContent.get()) {
Constructor constructor = new StrictMapAppenderConstructor(Map.class);
constructor.setAllowDuplicateKeys(false);
constructor.setPropertyUtils(new MyPropertyUtils());
TypeDescription yamlFileDescription = new TypeDescription(Map.class);
constructor.addTypeDescription(yamlFileDescription);
LoaderOptions options = new LoaderOptions();
options.setAllowDuplicateKeys(false);
//No Yaml Constructor takes only Constructor and LoaderOptions, that is why I had to pass anonymous Representer and DumperOptions objects
Object yamlObj = new Yaml(constructor, new Representer(), new DumperOptions(), options).load(yamlContent);
if (yamlObj == null) {
throw new Exception();
}
} catch (Exception exception) {
globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
.getErrorWithParameters(ERROR_CODE_YML_2, Messages
.INVALID_YAML_FORMAT_REASON.getErrorMessage(),
YamlValidatorUtil.getParserExceptionReason(exception)));
}
}
}
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