@Service
@Path("/notes")
@Produces(MediaType.APPLICATION_JSON)
public class NotesService {
    private static List allNotes = null;
    
    static {
        allNotes = new CopyOnWriteArrayList();
        allNotes.add( new NoteVO("1", "hello",
        "demonstrate rest services", new Date(), "system"));
        allNotes.add( new NoteVO("2", "bye",
        "HP Anywhere for tablet", new Date(), "system"));
    }
    
    @GET
        public NoteVO[] getAll() {
        NoteVO[] notes = new NoteVO[]{};
        return allNotes.toArray(notes);
    }
    
    @GET
    @Path("{id}")
    public NoteVO getNote(@PathParam("id") String id) {
        int idx = allNotes.indexOf(new NoteVO(id));
        if ( idx != -1 )
        {
            return allNotes.get(idx);
        }
    }
    
    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    public NoteVO addNote(NoteVO note) {
        NoteVO note1 = new NoteVO(note.getId(),
        note.getTitle(),
        note.getNarrative(),
        new Date(),
        note.getAuthor());
        allNotes.add(note1);
        return note1;
    }
    
    @PUT
    @Path("{id}")
    @Consumes(MediaType.APPLICATION_JSON)
    public NoteVO editNote(@PathParam("id") String id,
    NoteVO note) {
        NoteVO note1 = getNote(id);
        if ( note1 != null ) {
            note1.setTitle(note.getTitle());
            note1.setNarrative(note.getNarrative());
            note1.setDateCreated(note.getDateCreated());
            note1.setAuthor(note.getAuthor());
            return note1;
        }
        addNote(note);
        return note;
    }
    
    @DELETE
    @Path("{id}")
    public void deleteNote(@PathParam("id") String id) {
        allNotes.remove( new NoteVO(id));
    }
}