Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/state/StateFactory.java @ 1108:337727011de0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Removed duplicate xmlns:xlink definition. gnv-artifacts/trunk@1239 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Tue, 29 Jun 2010 08:47:46 +0000
parents 05bf8534a35a
children f953c9a559d8
rev   line source
335
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
1 package de.intevation.gnv.state;
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
2
779
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
3 import de.intevation.gnv.artifacts.GNVArtifactBase;
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
4
335
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
5 import org.apache.log4j.Logger;
779
b1f5f2a8840f Ordered imports. Removed needless imports. Removed empty headers.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 778
diff changeset
6
335
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
7 import org.w3c.dom.Node;
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
8
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
9 /**
796
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
10 * This factory should be used to create new state objects with help of a
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
11 * configuration segment.
803
feae2f9d6c6f Removed trailing whitespace.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 796
diff changeset
12 *
780
c4156275c1e1 Bring @author javadoc tags in form '@author <a href="john.doe@example.com">John Doe</a>'
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 779
diff changeset
13 * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
778
9a828e5a2390 Removed trailing whitespace
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 335
diff changeset
14 *
335
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
15 */
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
16 public class StateFactory {
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
17
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
18 /**
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
19 * the logger, used to log exceptions and additonaly information
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
20 */
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
21 private static Logger log = Logger.getLogger(GNVArtifactBase.class);
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
22
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
23 private static StateFactory instance = null;
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
24
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
25 /**
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
26 * Constructor
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
27 */
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
28 public StateFactory() {
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
29 super();
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
30 }
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
31
796
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
32 /**
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
33 * Return the instance of this class.
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
34 */
335
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
35 public static StateFactory getInstance() {
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
36 if (instance == null) {
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
37 instance = new StateFactory();
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
38 }
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
39 return instance;
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
40 }
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
41
796
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
42 /**
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
43 * This method creates a new state with help of the information in <i>
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
44 * configuration</i> and calls its setup method after creation.
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
45 *
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
46 * @return the new state.
a5526908f92f Added javadoc in state package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 780
diff changeset
47 */
335
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
48 public State createState(Node configuration) {
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
49 log.debug("StateFactory.createState");
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
50 State state = null;
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
51 try {
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
52 String classname = ((org.w3c.dom.Element)configuration).getAttribute("state");
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
53 state = (State) (Class.forName(classname).newInstance());
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
54 state.setup(configuration);
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
55 } catch (InstantiationException e) {
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
56 log.error(e, e);
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
57 } catch (IllegalAccessException e) {
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
58 log.error(e, e);
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
59 } catch (ClassNotFoundException e) {
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
60 log.error(e, e);
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
61 }
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
62 return state;
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
63 }
e964a3d8f7bc Some Refactoring work done.
Tim Englich <tim.englich@intevation.de>
parents:
diff changeset
64 }
836
05bf8534a35a Using unix line endings only.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 815
diff changeset
65 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org