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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2021 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.onap.sdc.tosca.services;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.nodes.MappingNode;
import org.yaml.snakeyaml.parser.ParserException;
import java.util.AbstractMap;
import java.util.Map;
import java.util.Set;
public class StrictMapAppenderConstructor extends Constructor {
/**
* Instantiates a new Strict map appender constructor.
*
* @param theRoot the the root
*/
public StrictMapAppenderConstructor(Class<?> theRoot) {
super(theRoot);
}
@Override
protected Map<Object, Object> createDefaultMap(int initSize) {
final Map<Object, Object> delegate = super.createDefaultMap(initSize);
return new AbstractMap<>() {
@Override
public Object put(Object key, Object value) {
if (delegate.containsKey(key)) {
throw new IllegalStateException("duplicate key: " + key);
}
return delegate.put(key, value);
}
@Override
public Set<Entry<Object, Object>> entrySet() {
return delegate.entrySet();
}
};
}
@Override
protected Map<Object, Object> constructMapping(MappingNode node) {
try {
return super.constructMapping(node);
} catch (IllegalStateException exception) {
throw new ParserException("while parsing MappingNode",
node.getStartMark(), exception.getMessage(),
node.getEndMark());
}
}
}
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