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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.model;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class YamlParameterListFactory {
public YamlParametersList createEmptyYamlParameterList() {
return new YamlParametersList(Collections.emptyList());
}
public YamlParametersList createYamlParameterList(Object yaml)
throws YamlParameterListParsingException {
try {
return parseYamlToListOfPossibleValues(yaml);
} catch (ClassCastException e) {
throw new YamlParameterListParsingException(
String.format("Fail to parse given objects: %s as list.",yaml), e
);
}
}
private YamlParametersList parseYamlToListOfPossibleValues(Object yaml) {
List<String> parametersList = new ArrayList<>();
if( yaml instanceof List) {
for (Object element : (List) yaml) {
parametersList.add(element.toString());
}
} else {
parametersList.add(yaml.toString());
}
return new YamlParametersList(parametersList);
}
public static class YamlParameterListParsingException extends Exception {
YamlParameterListParsingException(String message, Throwable throwable) {
super(message, throwable);
}
}
}
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