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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.schema.node;
import org.onap.validation.yaml.exception.YamlProcessingException;
import org.onap.validation.yaml.model.YamlDocument;
import org.onap.validation.yaml.model.YamlDocumentFactory;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class YamlSchemaBranchNode extends YamlSchemaNode {
private final YamlDocument nextNodesInLazyForm;
private List<YamlSchemaNode> nextNodes = Collections.emptyList();
YamlSchemaBranchNode(String name, String path, boolean required, String comment,
YamlDocument nextNodesInLazyForm) {
super(name, path, required, comment);
this.nextNodesInLazyForm = nextNodesInLazyForm;
}
@Override
public boolean isContainingSubStructure() {
return true;
}
@Override
public List<String> getAcceptedValues() {
return Collections.emptyList();
}
@Override
public synchronized List<YamlSchemaNode> getNextNodes() throws YamlSchemaProcessingException {
try {
return nextNodes.isEmpty() ? this.loadNextNodes() : nextNodes;
} catch (YamlSchemaLazyLoadingException lazyLoadingException) {
throw new YamlSchemaProcessingException(lazyLoadingException);
}
}
private List<YamlSchemaNode> loadNextNodes() {
try {
List<YamlSchemaNode> loadedNextNodes = new ArrayList<>();
for (String key : nextNodesInLazyForm.getYaml().keySet()) {
YamlDocument substructure = new YamlDocumentFactory()
.createYamlDocument(nextNodesInLazyForm.getYaml().get(key));
loadedNextNodes.add(new YamlSchemaNodeFactory().createNode(key, getPath() + getName() + "/", substructure));
}
nextNodes = loadedNextNodes;
return loadedNextNodes;
} catch (YamlProcessingException e) {
throw new YamlSchemaLazyLoadingException("Lazy loading failed, due to yaml parsing exception.",e);
}
}
static class YamlSchemaLazyLoadingException extends RuntimeException {
YamlSchemaLazyLoadingException(String message, Throwable throwable) {
super(message, throwable);
}
}
}
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