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package com.sun.xml.bind.v2.runtime;
import java.io.IOException;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import javax.xml.bind.ValidationEvent;
import javax.xml.bind.helpers.ValidationEventImpl;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import com.sun.xml.bind.v2.model.runtime.RuntimeArrayInfo;
import com.sun.xml.bind.v2.runtime.unmarshaller.Loader;
import com.sun.xml.bind.v2.runtime.unmarshaller.Receiver;
import com.sun.xml.bind.v2.runtime.unmarshaller.TagName;
import com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext;
import org.xml.sax.SAXException;
/**
* {@link JaxBeanInfo} implementation that binds T[] to a complex type
* with an element for each item.
*
* @author Kohsuke Kawaguchi
*/
final class ArrayBeanInfoImpl extends JaxBeanInfo {
private final Class itemType;
private final JaxBeanInfo itemBeanInfo;
private Loader loader;
public ArrayBeanInfoImpl(JAXBContextImpl owner, RuntimeArrayInfo rai) {
super(owner,rai,rai.getType(), rai.getTypeName(), false, true, false);
this.itemType = jaxbType.getComponentType();
this.itemBeanInfo = owner.getOrCreate(rai.getItemType());
}
@Override
protected void link(JAXBContextImpl grammar) {
getLoader(grammar,false);
super.link(grammar);
}
private final class ArrayLoader extends Loader implements Receiver {
public ArrayLoader(JAXBContextImpl owner) {
super(false);
itemLoader = itemBeanInfo.getLoader(owner,true);
}
private final Loader itemLoader;
@Override
public void startElement(UnmarshallingContext.State state, TagName ea) {
state.setTarget(new ArrayList());
}
@Override
public void leaveElement(UnmarshallingContext.State state, TagName ea) {
state.setTarget(toArray((List)state.getTarget()));
}
@Override
public void childElement(UnmarshallingContext.State state, TagName ea) throws SAXException {
if(ea.matches("","item")) {
state.setLoader(itemLoader);
state.setReceiver(this);
} else {
super.childElement(state,ea);
}
}
@Override
public Collection<QName> getExpectedChildElements() {
return Collections.singleton(new QName("","item"));
}
public void receive(UnmarshallingContext.State state, Object o) {
((List)state.getTarget()).add(o);
}
}
protected Object toArray( List list ) {
int len = list.size();
Object array = Array.newInstance(itemType,len);
for( int i=0; i<len; i++ )
Array.set(array,i,list.get(i));
return array;
}
public void serializeBody(Object array, XMLSerializer target) throws SAXException, IOException, XMLStreamException {
int len = Array.getLength(array);
for( int i=0; i<len; i++ ) {
Object item = Array.get(array,i);
// TODO: check the namespace URI.
target.startElement("","item",null,null);
if(item==null) {
target.writeXsiNilTrue();
} else {
target.childAsXsiType(item,"arrayItem",itemBeanInfo, false);
}
target.endElement();
}
}
public final String getElementNamespaceURI(Object array) {
throw new UnsupportedOperationException();
}
public final String getElementLocalName(Object array) {
throw new UnsupportedOperationException();
}
public final Object createInstance(UnmarshallingContext context) {
// we first create a List and then later convert it to an array
return new ArrayList();
}
public final boolean reset(Object array, UnmarshallingContext context) {
return false;
}
public final String getId(Object array, XMLSerializer target) {
return null;
}
public final void serializeAttributes(Object array, XMLSerializer target) {
// noop
}
public final void serializeRoot(Object array, XMLSerializer target) throws SAXException, IOException, XMLStreamException {
target.reportError(
new ValidationEventImpl(
ValidationEvent.ERROR,
Messages.UNABLE_TO_MARSHAL_NON_ELEMENT.format(array.getClass().getName()),
null,
null));
}
public final void serializeURIs(Object array, XMLSerializer target) {
// noop
}
public final Transducer getTransducer() {
return null;
}
public final Loader getLoader(JAXBContextImpl context, boolean typeSubstitutionCapable) {
if(loader==null)
loader = new ArrayLoader(context);
// type substitution not possible
return loader;
}
}