/**
* Cenverte o objeto informado para uma String que representa o XML do objeto.
*
* @param <T> Tipo generico que informa a classe
* @param object O objeto a ser convertido. A classe deste objeto deve conter as anotações de
* JAXB.
* @param schemaLocation {@link URL} do schema.
* @return
* @throws JAXBException
*/
@SuppressWarnings("unchecked")
public static <T> String marshal(T object, URL schemaLocation) throws JAXBException {
Class<T> objClass = (Class<T>) object.getClass();
JAXBContext context = JAXBContext.newInstance(objClass);
Marshaller marshaller = context.createMarshaller();
StringWriter sWriter = new StringWriter();
XmlSchema xmlSchema = objClass.getPackage().getAnnotation(XmlSchema.class);
if (xmlSchema != null && xmlSchema.namespace() != null) {
XmlType xmlType = objClass.getAnnotation(XmlType.class);
if (xmlType != null && xmlType.name() != null) {
QName qName = new QName(xmlSchema.namespace(), xmlType.name());
JAXBElement<T> elem = new JAXBElement<T>(qName, objClass, object);
if (schemaLocation != null) {
SchemaFactory schemaFactory =
SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
try {
Schema schema = schemaFactory.newSchema(schemaLocation);
marshaller.setSchema(schema);
} catch (SAXException e) {
e.printStackTrace();
}
}
marshaller.marshal(elem, sWriter);
return sWriter.toString();
} else {
throw new JAXBException("The xmlType could not be identified in class annotation");
}
} else {
throw new JAXBException("The namespace could not be identified from package-info class");
}
}
private static String getNamespace(Class<?> jaxbClass, Map<Package, String> pkgToNamespace) {
Package pkg = jaxbClass.getPackage();
String namespace = pkgToNamespace.get(pkg);
if (namespace == null) {
XmlSchema schemaAnnot = pkg.getAnnotation(XmlSchema.class);
if (schemaAnnot != null) {
namespace = schemaAnnot.namespace();
// XmlNs[] xmlns = schemaAnnot.xmlns(); Useful if we need prefix for namespace
pkgToNamespace.put(pkg, namespace);
}
}
return namespace;
}
