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package com.sun.xml.bind.v2.runtime.property;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.annotation.DomHandler;
import javax.xml.stream.XMLStreamException;
import com.sun.xml.bind.api.AccessorException;
import com.sun.xml.bind.v2.ClassFactory;
import com.sun.xml.bind.v2.model.core.PropertyKind;
import com.sun.xml.bind.v2.model.core.WildcardMode;
import com.sun.xml.bind.v2.model.runtime.RuntimeElement;
import com.sun.xml.bind.v2.model.runtime.RuntimeReferencePropertyInfo;
import com.sun.xml.bind.v2.runtime.ElementBeanInfoImpl;
import com.sun.xml.bind.v2.runtime.JAXBContextImpl;
import com.sun.xml.bind.v2.runtime.JaxBeanInfo;
import com.sun.xml.bind.v2.runtime.XMLSerializer;
import com.sun.xml.bind.v2.runtime.reflect.Accessor;
import com.sun.xml.bind.v2.runtime.unmarshaller.ChildLoader;
import com.sun.xml.bind.v2.runtime.unmarshaller.WildcardLoader;
import com.sun.xml.bind.v2.util.QNameMap;
import org.xml.sax.SAXException;
/**
* @author Kohsuke Kawaguchi
*/
final class SingleReferenceNodeProperty<BeanT,ValueT> extends PropertyImpl<BeanT> {
private final Accessor<BeanT,ValueT> acc;
private final QNameMap<JaxBeanInfo> expectedElements = new QNameMap<JaxBeanInfo>();
private final DomHandler domHandler;
private final WildcardMode wcMode;
public SingleReferenceNodeProperty(JAXBContextImpl context, RuntimeReferencePropertyInfo prop) {
super(context,prop);
acc = prop.getAccessor().optimize(context);
for (RuntimeElement e : prop.getElements()) {
expectedElements.put( e.getElementName(), context.getOrCreate(e) );
}
if(prop.getWildcard()!=null) {
domHandler = (DomHandler) ClassFactory.create(prop.getDOMHandler());
wcMode = prop.getWildcard();
} else {
domHandler = null;
wcMode = null;
}
}
public void reset(BeanT bean) throws AccessorException {
acc.set(bean,null);
}
public String getIdValue(BeanT beanT) {
return null;
}
public void serializeBody(BeanT o, XMLSerializer w, Object outerPeer) throws SAXException, AccessorException, IOException, XMLStreamException {
ValueT v = acc.get(o);
if(v!=null) {
try {
JaxBeanInfo bi = w.grammar.getBeanInfo(v,true);
if(bi.jaxbType==Object.class && domHandler!=null)
// even if 'v' is a DOM node, it always derive from Object,
// so the getBeanInfo returns BeanInfo for Object
w.writeDom(v,domHandler,o,fieldName);
else
bi.serializeRoot(v,w);
} catch (JAXBException e) {
w.reportError(fieldName,e);
// recover by ignoring this property
}
}
}
public void buildChildElementUnmarshallers(UnmarshallerChain chain, QNameMap<ChildLoader> handlers) {
for (QNameMap.Entry<JaxBeanInfo> n : expectedElements.entrySet())
handlers.put(n.nsUri,n.localName, new ChildLoader(n.getValue().getLoader(chain.context,true),acc));
if(domHandler!=null)
handlers.put(CATCH_ALL,new ChildLoader(new WildcardLoader(domHandler,wcMode),acc));
}
public PropertyKind getKind() {
return PropertyKind.REFERENCE;
}
@Override
public Accessor getElementPropertyAccessor(String nsUri, String localName) {
JaxBeanInfo bi = expectedElements.get(nsUri, localName);
if(bi!=null) {
if(bi instanceof ElementBeanInfoImpl) {
final ElementBeanInfoImpl ebi = (ElementBeanInfoImpl) bi;
// a JAXBElement. We need to handle JAXBElement for JAX-WS
return new Accessor<BeanT,Object>(ebi.expectedType) {
public Object get(BeanT bean) throws AccessorException {
ValueT r = acc.get(bean);
if(r instanceof JAXBElement) {
return ((JAXBElement)r).getValue();
} else
// this is sloppy programming, but hey...
return r;
}
public void set(BeanT bean, Object value) throws AccessorException {
if(value!=null) {
try {
value = ebi.createInstanceFromValue(value);
} catch (IllegalAccessException e) {
throw new AccessorException(e);
} catch (InvocationTargetException e) {
throw new AccessorException(e);
} catch (InstantiationException e) {
throw new AccessorException(e);
}
}
acc.set(bean,(ValueT)value);
}
};
} else {
// a custom element type, like @XmlRootElement class Foo { ... }
return acc;
}
} else
return null;
}
}