public T readFrom(
Class<T> type,
Type genericType,
Annotation[] anns,
MediaType mt,
MultivaluedMap<String, String> headers,
InputStream is)
throws IOException {
if (isPayloadEmpty(headers)) {
if (AnnotationUtils.getAnnotation(anns, Nullable.class) != null) {
return null;
} else {
reportEmptyContentLength();
}
}
XMLStreamReader reader = null;
Unmarshaller unmarshaller = null;
try {
boolean isCollection = InjectionUtils.isSupportedCollectionOrArray(type);
Class<?> theGenericType = isCollection ? InjectionUtils.getActualType(genericType) : type;
Class<?> theType = getActualType(theGenericType, genericType, anns);
unmarshaller = createUnmarshaller(theType, genericType, isCollection);
addAttachmentUnmarshaller(unmarshaller);
Object response = null;
if (JAXBElement.class.isAssignableFrom(type)
|| !isCollection
&& (unmarshalAsJaxbElement
|| jaxbElementClassMap != null
&& jaxbElementClassMap.containsKey(theType.getName()))) {
reader = getStreamReader(is, type, mt);
reader = TransformUtils.createNewReaderIfNeeded(reader, is);
if (JAXBElement.class.isAssignableFrom(type) && type == theType) {
response = unmarshaller.unmarshal(reader);
} else {
response = unmarshaller.unmarshal(reader, theType);
}
} else {
response = doUnmarshal(unmarshaller, type, is, anns, mt);
}
if (response instanceof JAXBElement && !JAXBElement.class.isAssignableFrom(type)) {
response = ((JAXBElement<?>) response).getValue();
}
if (isCollection) {
response =
((CollectionWrapper) response)
.getCollectionOrArray(
unmarshaller,
theType,
type,
genericType,
org.apache.cxf.jaxrs.utils.JAXBUtils.getAdapter(theGenericType, anns));
} else {
response = checkAdapter(response, type, anns, false);
}
return type.cast(response);
} catch (JAXBException e) {
handleJAXBException(e, true);
} catch (DepthExceededStaxException e) {
throw ExceptionUtils.toWebApplicationException(null, JAXRSUtils.toResponse(413));
} catch (WebApplicationException e) {
throw e;
} catch (Exception e) {
LOG.warning(ExceptionUtils.getStackTrace(e));
throw ExceptionUtils.toBadRequestException(e, null);
} finally {
try {
StaxUtils.close(reader);
} catch (XMLStreamException e) {
// Ignore
}
JAXBUtils.closeUnmarshaller(unmarshaller);
}
// unreachable
return null;
}
