SingletonPropertyInfo.java
/*
* Portions of this software was developed by employees of the National Institute
* of Standards and Technology (NIST), an agency of the Federal Government and is
* being made available as a public service. Pursuant to title 17 United States
* Code Section 105, works of NIST employees are not subject to copyright
* protection in the United States. This software may be subject to foreign
* copyright. Permission in the United States and in foreign countries, to the
* extent that NIST may hold copyright, to use, copy, modify, create derivative
* works, and distribute this software and its documentation without fee is hereby
* granted on a non-exclusive basis, provided that this notice and disclaimer
* of warranty appears in all copies.
*
* THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
* EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
* THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
* INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
* SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT
* SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
* INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
* OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
* CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
* PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
* OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
*/
package gov.nist.secauto.metaschema.databind.model.info;
import gov.nist.secauto.metaschema.core.util.ObjectUtils;
import gov.nist.secauto.metaschema.databind.io.BindingException;
import gov.nist.secauto.metaschema.databind.io.json.IJsonParsingContext;
import gov.nist.secauto.metaschema.databind.io.json.IJsonWritingContext;
import gov.nist.secauto.metaschema.databind.io.xml.IXmlParsingContext;
import gov.nist.secauto.metaschema.databind.io.xml.IXmlWritingContext;
import gov.nist.secauto.metaschema.databind.model.IBoundNamedModelInstance;
import java.io.IOException;
import java.util.List;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.StartElement;
import edu.umd.cs.findbugs.annotations.NonNull;
class SingletonPropertyInfo
extends AbstractModelPropertyInfo {
public SingletonPropertyInfo(
@NonNull IBoundNamedModelInstance property) {
super(property);
}
@SuppressWarnings("null")
@Override
public List<?> getItemsFromValue(Object value) {
return value == null ? List.of() : List.of(value);
}
@Override
public int getItemCount(Object value) {
return value == null ? 0 : 1;
}
@Override
public void readValues(IPropertyCollector collector, Object parentInstance, IJsonParsingContext context)
throws IOException {
// JsonParser parser = context.getReader();
//
// boolean isObject = JsonToken.START_OBJECT.equals(parser.currentToken()); //
// TODO: is this object
// check needed?
// if (isObject) {
// // read the object's START_OBJECT
// JsonUtil.assertAndAdvance(parser, JsonToken.START_OBJECT);
// }
Object value = getProperty().getDataTypeHandler().readItem(parentInstance, context);
collector.add(value);
// if (isObject) {
// // read the object's END_OBJECT
// JsonUtil.assertAndAdvance(context.getReader(), JsonToken.END_OBJECT);
// }
}
@Override
public boolean readValues(IPropertyCollector collector, Object parentInstance, StartElement start,
IXmlParsingContext context) throws IOException, XMLStreamException {
boolean handled = true;
Object value = context.readModelInstanceValue(getProperty(), parentInstance, start);
if (value != null) {
collector.add(value);
handled = true;
}
return handled;
}
@Override
public Class<?> getItemType() {
return (Class<?>) getProperty().getType();
}
@Override
public IPropertyCollector newPropertyCollector() {
return new SingletonPropertyCollector();
}
@Override
public void writeValues(@NonNull Object value, QName parentName, IXmlWritingContext context)
throws XMLStreamException, IOException {
context.writeInstanceValue(getProperty(), value, parentName);
}
@Override
public void writeValues(Object parentObject, IJsonWritingContext context) throws IOException {
IBoundNamedModelInstance property = getProperty();
getProperty().getDataTypeHandler().writeItem(
ObjectUtils.notNull(property.getValue(parentObject)),
context);
}
@Override
public boolean isValueSet(Object parentInstance) throws IOException {
return getProperty().getValue(parentInstance) != null;
}
@Override
public void copy(@NonNull Object fromInstance, @NonNull Object toInstance, @NonNull IPropertyCollector collector)
throws BindingException {
IBoundNamedModelInstance property = getProperty();
Object value = property.getValue(fromInstance);
Object copiedValue = property.copyItem(ObjectUtils.requireNonNull(value), toInstance);
collector.add(copiedValue);
}
}