I'm doing file upload and have implemented it the way it is suggested here:
http://wiki.apache.org/myfaces/Setup_For_File_Uploads
On the view I have this code to do upload:
<t:inputFileUpload storage="file" immediate="true">
<f:valueChangeListener type="com.myorg.foo.UploadListener" />
</t:inputFileUpload>
The listener that processes the upload is something like :
public class UploadListener implements ValueChangeListener {
public void processValueChange(ValueChangeEvent event) throws AbortProcessingException {
// Upload and do something with uploadedFile
}
}
With the listener being a POJO, everything works OK.
Now I have changed to code of the UploadListener to do some logging and save the file to a location depending on the username. So to me it sounds like making it an EJB3 component is the best approach:
@Stateless
@Name("uploadListener")
public class UploadListener implements ValueChangeListener {
@Logger
private Log log;
@PersistenceContext
private EntityManager em;
@In User user;
public void processValueChange(ValueChangeEvent event) throws AbortProcessingException {
if (log == null) System.out.println("Log is null !!" );
if (em == null) System.out.println("EntityManager is null !!" );
if (user == null) System.out.println("User is null !!" );
// Upload and do something with uploadedFile
}
}
But here where I have a surprise. I'm getting:
Error EntityManager is null !!
User is null !!
Log is null !!
I have tried to make it implement a local empty interface as well, but still no success.
Am I doing the right thing ? Any idea ?
Thx
