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1 package org.sapia.ubik.rmi.examples.time;
2
3 import java.util.Properties  ;
4
5 import javax.naming.InitialContext ;
6 import javax.naming.NamingException ;
7
8 import org.sapia.ubik.rmi.Consts;
9 import org.sapia.ubik.rmi.naming.remote.RemoteInitialContextFactory;
10 import org.sapia.ubik.rmi.server.Hub;
11 import org.sapia.ubik.rmi.server.Log;
12
13
14
17 public class TimeClient {
18 private InitialContext _theContext;
19 private TimeServiceIF _theTimeService;
20 private boolean _isLogging;
21
22 public TimeClient() {
23 this(true);
24 }
25
26 public TimeClient(boolean isLogging) {
27 try {
28 Log.setInfo();
29 _isLogging = isLogging;
30
31 Properties props = new Properties ();
32
33 props.setProperty(InitialContext.PROVIDER_URL, "ubik://localhost:1099/");
34 props.setProperty(InitialContext.INITIAL_CONTEXT_FACTORY,
35 RemoteInitialContextFactory.class.getName());
36 props.setProperty(Consts.UBIK_DOMAIN_NAME,
37 Consts.DEFAULT_DOMAIN);
38
39 _theContext = new InitialContext (props);
40 } catch (Exception ne) {
41 System.err.println("Error creating the JNDI context");
42 ne.printStackTrace();
43 throw new RuntimeException ("Error creating the JNDI context - " +
44 ne.getMessage());
45 }
46 }
47
48 public static void main(String [] args) {
49 try {
50 Log.setWarning();
51 new TimeClient().execute();
52 Hub.shutdown(30000);
53 } catch (Throwable t) {
54 t.printStackTrace();
55 }
56 }
57
58 public void execute() {
59 try {
60 String aTime = getTimeService().getTime();
61
62 if (_isLogging) {
63 System.out.println("Current time --> " + aTime);
64 }
65 } catch (NamingException ne) {
66 System.err.println("Error looking up the time service");
67 ne.printStackTrace();
68 }
69 }
70
71 public TimeServiceIF getTimeService() throws NamingException {
72 if (_theTimeService == null) {
73 Object anObject = _theContext.lookup("util/timeService");
74
75 if (anObject instanceof TimeServiceIF) {
76 _theTimeService = (TimeServiceIF) anObject;
77 } else {
78 throw new NamingException (
79 "The object received is not a TimeServiceIF: " + anObject);
80 }
81 }
82
83 return _theTimeService;
84 }
85 }
86 |
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