1    package javassist.sample.rmi; 
2     
3    import javassist.rmi.ObjectImporter; 
4    import javassist.rmi.ObjectNotFoundException; 
5    import javassist.web.Viewer; 
6     
7    public class ComputationClient { 
8        private ObjectImporter objectImporter; 
9        private RemoteComputation computable; 
10    
11    
12       public ComputationClient() { 
13           Viewer viewer = (Viewer) getClass().getClassLoader(); 
14           objectImporter = new ObjectImporter( 
15                   viewer.getServer(), 
16                   viewer.getPort()); 
17           try { 
18               //lookupComputation(); 
19               lookupJob(); 
20           } catch (ObjectNotFoundException e) { 
21               e.printStackTrace(); 
22           } 
23       } 
24    
25       private void lookupComputation() throws ObjectNotFoundException { 
26           Object obj = objectImporter.lookupObject("computation"); 
27           Class c = obj.getClass(); 
28           computable = (RemoteComputation) obj; 
29           System.out.println("got computation as:" 
30                   + c.getName()); 
31           if (computable instanceof RemoteComputation) 
32               System.out.println("this is computable"); 
33           else 
34               System.out.println("this is not computable"); 
35    
36           System.out.println(computable.compute(new Job())); 
37           System.out.println("computation computed!"); 
38       } 
39    
40       private void lookupJob() 
41               throws ObjectNotFoundException { 
42           Object obj = 
43                   objectImporter.lookupObject("job"); 
44           Class c = obj.getClass(); 
45           Job j = (Job) obj; 
46           System.out.println("got job as:" 
47                   + c.getName()); 
48           if (j instanceof Job) 
49               System.out.println("this is a Job"); 
50           else 
51               System.out.println("this is not computable"); 
52    
53           System.out.println(j.compute()); 
54           System.out.println("computation computed!"); 
55       } 
56    
57    
58       public static void main(String[] args) { 
59           new ComputationClient(); 
60    
61    
62       } 
63   } 
64