Mercurial > dive4elements > gnv-client

annotate gnv/src/main/java/de/intevation/gnv/action/sessionmodel/SessionModelFactory.java @ 394:14eecfde4607

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Render links to step back to previous states into gui. Added controller to advance back to these states. gnv/trunk@538 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 13 Jan 2010 22:17:02 +0000
parents ad381cc47217
children 15ac78a91d1b
rev   line source
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
1 /**
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
2 *
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
3 */
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
4 package de.intevation.gnv.action.sessionmodel;
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
5
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
6 import javax.servlet.http.HttpServletRequest;
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
7
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
8 import org.apache.log4j.Logger;
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
9
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
10 /**
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
11 * @author Tim Englich <tim.englich@intevation.de>
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
12 *
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
13 */
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
14 public class SessionModelFactory {
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
15
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
16 public final static String SESSION_MODEL_ID = "de.intevation.gnv.action.sessionmodel.SessionModel.ID";
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
17 /**
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
18 * the logger, used to log exceptions and additonaly information
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
19 */
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
20 private static Logger log = Logger.getLogger(SessionModelFactory.class);
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
21
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
22 /**
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
23 * The singleton Instance of this Factory.
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
24 */
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
25 private static SessionModelFactory instance = null;
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
26
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
27 /**
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
28 * Constructor
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
29 */
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
30 private SessionModelFactory() {
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
31 super();
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
32 }
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
33
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
34 /**
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
35 * This Method provides an singleton Instance of this Class.
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
36 *
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
37 * @return an singleton Instance of this Class
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
38 */
394
14eecfde4607 Render links to step back to previous states into gui. Added controller to advance back to these states.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 36
diff changeset
39 public synchronized static SessionModelFactory getInstance() {
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
40 if (instance == null) {
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
41 instance = new SessionModelFactory();
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
42 }
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
43 return instance;
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
44 }
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
45
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
46 /**
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
47 * Getting the ArtifactDatabaseClient
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
48 *
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
49 * @return the ArtifactDatabaseClient
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
50 */
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
51 public SessionModel getSessionModel(HttpServletRequest request) {
394
14eecfde4607 Render links to step back to previous states into gui. Added controller to advance back to these states.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 36
diff changeset
52 synchronized (request) {
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
53 SessionModel sm = null;
394
14eecfde4607 Render links to step back to previous states into gui. Added controller to advance back to these states.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 36
diff changeset
54 Object obj = request.getSession().getAttribute(SESSION_MODEL_ID);
14eecfde4607 Render links to step back to previous states into gui. Added controller to advance back to these states.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 36
diff changeset
55 if (obj instanceof SessionModel) {
14eecfde4607 Render links to step back to previous states into gui. Added controller to advance back to these states.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 36
diff changeset
56 sm = (SessionModel) obj;
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
57 } else {
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
58 sm = new DefaultSessionModel();
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
59 request.getSession().setAttribute(SESSION_MODEL_ID, sm);
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
60 }
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
61
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
62 return sm;
36
ad381cc47217 Format Code to max 80 Chars per Row
Tim Englich <tim.englich@intevation.de>
parents: 35
diff changeset
63 }
8
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
64 }
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
65
65ff6fcfee0c Some Basic Stuff for WebProjects
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
66 }
http://dive4elements.wald.intevation.org