Hi
Thanks for raising this issue and the patch.
Unfortunately it is a won't fix issue.
It's not really related to the use of async methods but to the fact no
type info is available in this case, the same would happen if you had
Response with a List set on it returned.
The JAX-RS compliant way is to use GenericEntity as an entity instance
wrapping a given collection. Give it a try please
Cheers
Sergey
On 13/09/14 08:32, iris ding wrote:
Hi Guys,
CXF fails to find a correct MessageBodyWritter for List<E> if Resource
method is defined under async way,
see below example, I have two methods defined, the **/collecitons can be
returned successfully however
we will get an error for the **/asyncCollections.
@Path("/bookstore")
public class BookContinuationStore {
private final List<Book> bookList = new ArrayList<Book>();
public BookContinuationStore()
{ init(); }
@GET
@Path("/collections")
@Produces(
{ "application/xml", "application/json" })
public List<Book> getBookCollection() throws Exception { return bookList; }
@GET
@Path("/asyncCollections")
@Produces({ "application/xml", "application/json" }
)
public void getBookCollection(@Suspended AsyncResponse response) throws
Exception
{ resumeSuspendedBookList(response); }
private void resumeSuspendedBookList(final AsyncResponse response) {
executor.execute(new Runnable() {
@Override
public void run() {
try
{ Thread.sleep(2000); }
catch (InterruptedException ex)
{ // ignore }
response.resume(bookList);
}
});
}
private void init()
{ Book b1 = new Book("Iris1", 1); Book b2 = new Book("Iris2", 2);
bookList.add(b1); bookList.add(b2); }
}
I have opened CXF-6001 for this issue and uploaded a proposed fix. Looking
forward to your comments!
Iris Ding
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Sergey Beryozkin
Talend Community Coders
http://coders.talend.com/
Blog: http://sberyozkin.blogspot.com
