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package com.sun.xml.bind.v2.runtime.property;
import java.io.IOException;
import javax.xml.stream.XMLStreamException;
import com.sun.xml.bind.api.AccessorException;
import com.sun.xml.bind.v2.model.core.PropertyKind;
import com.sun.xml.bind.v2.model.runtime.RuntimeElementPropertyInfo;
import com.sun.xml.bind.v2.model.runtime.RuntimeTypeRef;
import com.sun.xml.bind.v2.runtime.JAXBContextImpl;
import com.sun.xml.bind.v2.runtime.Name;
import com.sun.xml.bind.v2.runtime.XMLSerializer;
import com.sun.xml.bind.v2.runtime.reflect.Accessor;
import com.sun.xml.bind.v2.runtime.reflect.TransducedAccessor;
import com.sun.xml.bind.v2.runtime.unmarshaller.ChildLoader;
import com.sun.xml.bind.v2.runtime.unmarshaller.DefaultValueLoaderDecorator;
import com.sun.xml.bind.v2.runtime.unmarshaller.LeafPropertyLoader;
import com.sun.xml.bind.v2.runtime.unmarshaller.LeafPropertyXsiLoader;
import com.sun.xml.bind.v2.runtime.unmarshaller.Loader;
import com.sun.xml.bind.v2.runtime.unmarshaller.XsiNilLoader;
import com.sun.xml.bind.v2.util.QNameMap;
import org.xml.sax.SAXException;
/**
* {@link Property} that contains a leaf value.
*
* @author Kohsuke Kawaguchi ([email protected])
*/
final class SingleElementLeafProperty extends PropertyImpl {
private final Name tagName;
private final boolean nillable;
private final Accessor acc;
private final String defaultValue;
private final TransducedAccessor xacc;
private final boolean improvedXsiTypeHandling;
public SingleElementLeafProperty(JAXBContextImpl context, RuntimeElementPropertyInfo prop) {
super(context, prop);
RuntimeTypeRef ref = prop.getTypes().get(0);
tagName = context.nameBuilder.createElementName(ref.getTagName());
assert tagName != null;
nillable = ref.isNillable();
defaultValue = ref.getDefaultValue();
this.acc = prop.getAccessor().optimize(context);
xacc = TransducedAccessor.get(context, ref);
assert xacc != null;
improvedXsiTypeHandling = context.improvedXsiTypeHandling;
}
public void reset(BeanT o) throws AccessorException {
acc.set(o, null);
}
public String getIdValue(BeanT bean) throws AccessorException, SAXException {
return xacc.print(bean).toString();
}
@Override
public void serializeBody(BeanT o, XMLSerializer w, Object outerPeer) throws SAXException, AccessorException, IOException, XMLStreamException {
boolean hasValue = xacc.hasValue(o);
Object obj = null;
try {
obj = acc.getUnadapted(o);
} catch (AccessorException ae) {
; // noop
}
Class valueType = acc.getValueType();
// check for different type than expected. If found, add xsi:type declaration
if (improvedXsiTypeHandling && !acc.isAdapted() &&
(obj!=null) && ( !obj.getClass().equals(valueType))&&
(!valueType.isPrimitive() && acc.isValueTypeAbstractable() )) {
w.startElement(tagName, outerPeer);
w.childAsXsiType(obj, fieldName, w.grammar.getBeanInfo(valueType), nillable);
w.endElement();
} else { // current type is expected
if (hasValue) {
xacc.writeLeafElement(w, tagName, o, fieldName);
} else if (nillable) {
w.startElement(tagName, null);
w.writeXsiNilTrue();
w.endElement();
}
}
}
public void buildChildElementUnmarshallers(UnmarshallerChain chain, QNameMap handlers) {
Loader l = new LeafPropertyLoader(xacc);
if (defaultValue != null)
l = new DefaultValueLoaderDecorator(l, defaultValue);
if (nillable || chain.context.allNillable)
l = new XsiNilLoader.Single(l, acc);
// LeafPropertyXsiLoader doesn't work well with nillable elements
if (improvedXsiTypeHandling && !nillable)
l = new LeafPropertyXsiLoader(l, xacc, acc);
handlers.put(tagName, new ChildLoader(l, null));
}
public PropertyKind getKind() {
return PropertyKind.ELEMENT;
}
@Override
public Accessor getElementPropertyAccessor(String nsUri, String localName) {
if (tagName.equals(nsUri, localName))
return acc;
else
return null;
}
}
