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/*
* Copyright 2020 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.onap.validation.yaml;
import org.onap.validation.yaml.error.SchemaValidationError;
import org.onap.validation.yaml.error.YamlDocumentValidationError;
import org.onap.validation.yaml.exception.YamlProcessingException;
import org.onap.validation.yaml.model.YamlDocument;
import org.onap.validation.yaml.model.YamlDocumentFactory;
import org.onap.validation.yaml.schema.YamlSchema;
import org.onap.validation.yaml.schema.YamlSchemaFactory;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
public class YamlContentValidator {
private static final int FIRST_DOCUMENT_INDEX = 1;
private static final YamlLoader YAML_LOADER = new YamlLoader(new YamlDocumentFactory());
public List<YamlDocumentValidationError> validate(String pathToFile)
throws YamlProcessingException {
List<YamlDocument> documents = YAML_LOADER.loadMultiDocumentYamlFile(pathToFile);
return getYamlDocumentValidationErrors(documents);
}
public List<YamlDocumentValidationError> validate(byte[] yamlWithSchema)
throws YamlProcessingException {
List<YamlDocument> documents = YAML_LOADER.loadMultiDocumentYaml(yamlWithSchema);
return getYamlDocumentValidationErrors(documents);
}
private List<YamlDocumentValidationError> getYamlDocumentValidationErrors(List<YamlDocument> documents) throws YamlProcessingException {
if (documents.isEmpty()) {
throw new YamlProcessingException("Dictionary YAML file is empty");
} else {
return validateDocuments(documents);
}
}
private List<YamlDocumentValidationError> validateDocuments(List<YamlDocument> documents)
throws YamlProcessingException {
List<YamlDocumentValidationError> yamlFileValidationErrors = new ArrayList<>();
YamlSchema schema = extractSchema(documents);
YamlValidator validator = new YamlValidator(schema);
for (int index = FIRST_DOCUMENT_INDEX; index < documents.size(); index++) {
List<SchemaValidationError> validationErrors = validator.validate(documents.get(index));
yamlFileValidationErrors.addAll(transformErrors(index, validationErrors));
}
return yamlFileValidationErrors;
}
private List<YamlDocumentValidationError> transformErrors(int index, List<SchemaValidationError> validationErrors) {
return validationErrors
.stream()
.map(error -> new YamlDocumentValidationError(index, error.getPath(), error.getMessage()))
.collect(Collectors.toList());
}
private YamlSchema extractSchema(List<YamlDocument> documents) throws YamlProcessingException {
return new YamlSchemaFactory().createTreeStructuredYamlSchema(documents.get(0));
}
}
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