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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.validation.impl.validators;
import org.openecomp.core.utilities.yaml.YamlUtil;
import org.openecomp.core.validation.errors.ErrorMessagesFormatBuilder;
import org.openecomp.core.validation.errors.Messages;
import org.openecomp.core.validation.interfaces.Validator;
import org.openecomp.core.validation.types.GlobalValidationContext;
import org.openecomp.sdc.datatypes.error.ErrorLevel;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.yaml.snakeyaml.error.MarkedYAMLException;
import org.yaml.snakeyaml.parser.ParserException;
import java.io.InputStream;
import java.util.Collection;
import java.util.Map;
public class YamlValidator implements Validator {
private static final Logger logger = LoggerFactory.getLogger(YamlValidator.class);
@Override
public void validate(GlobalValidationContext globalContext) {
Collection<String> files = globalContext.files(
(fileName, globalValidationContext) -> (fileName.endsWith(".yaml")
|| fileName.endsWith(".yml") || fileName.endsWith(".env")));
files.stream().forEach(fileName -> validate(fileName, globalContext));
}
private void validate(String fileName, GlobalValidationContext globalContext) {
InputStream rowContent = globalContext.getFileContent(fileName);
if (rowContent == null) {
globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
.getErrorWithParameters(Messages.INVALID_YAML_FORMAT_REASON.getErrorMessage(),
Messages.EMPTY_YAML_FILE.getErrorMessage()));
return; /* no need to continue validation */
}
try {
convert(rowContent, Map.class);
} catch (Exception exception) {
globalContext.addMessage(fileName, ErrorLevel.ERROR, ErrorMessagesFormatBuilder
.getErrorWithParameters(Messages.INVALID_YAML_FORMAT_REASON.getErrorMessage(),
getParserExceptionReason(exception)));
logger.error("Exception in yaml parser. message:" + exception.getMessage());
}
}
private String getParserExceptionReason(Exception exception) {
String reason = null;
if (exception.getCause() instanceof MarkedYAMLException) {
if (exception.getCause() != null) {
if (exception.getCause().getCause() instanceof ParserException) {
reason = exception.getCause().getCause().getMessage();
} else {
reason = exception.getCause().getMessage();
}
}
} else if (exception instanceof MarkedYAMLException) {
reason = exception.getMessage();
} else {
reason = Messages.GENERAL_YAML_PARSER_ERROR.getErrorMessage();
}
return reason;
}
private <T> T convert(InputStream content, Class<T> type) {
return new YamlUtil().yamlToObject(content, type);
}
}
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