Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultServiceFactory.java @ 92:73d0ebae81d7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Last bunch of javadoc artifacts/trunk@848 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 28 Mar 2010 14:16:05 +0000
parents 68285f7bc476
children e27cf9c84eb8
rev   line source
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package de.intevation.artifactdatabase;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
3 import org.w3c.dom.Document;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
4 import org.w3c.dom.Node;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
6 import de.intevation.artifacts.ServiceFactory;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
7 import de.intevation.artifacts.Service;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9 import org.apache.log4j.Logger;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11 /**
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
12 * Trivial implementation of the ServiceFactory interface.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
13 * Name and an description are configured by the given Node given to
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
14 * #setup(Document, Node) via the 'name' and 'description' attributes.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
15 * The name of the class that provides the concrete serice is configured
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
16 * by the 'service' attribute.
90
68285f7bc476 More javadoc.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 89
diff changeset
17 *
77
48d1a9a082c2 Bring @author javadoc tags in form '@author <a href="john.doe@example.com">John Doe</a>'
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 69
diff changeset
18 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19 */
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 public class DefaultServiceFactory
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21 implements ServiceFactory
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22 {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
23 private static Logger logger =
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
24 Logger.getLogger(DefaultServiceFactory.class);
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
25
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
26 /**
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
27 * XPath to access the name of the service.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
28 */
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29 public static final String XPATH_NAME = "@name";
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
30 /**
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
31 * XPath to access the description of the service.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
32 */
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
33 public static final String XPATH_DESCRIPTION = "@description";
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
34 /**
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
35 * XPath to access the class name of the service to be build by
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
36 * this factory.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
37 */
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
38 public static final String XPATH_SERVICE = "@service";
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
39
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
40 /**
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
41 * Default description if no description is given in configuration.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
42 */
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
43 public static final String DEFAULT_DESCRIPTION =
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
44 "No description available";
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
45
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
46 /**
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
47 * Loaded service class if no class name is given in the configuration.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
48 */
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
49 public static final String DEFAULT_SERVICE =
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
50 "de.intevation.artifactdatabase.DefaultService";
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
51
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
52 /**
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
53 * The name of the service factory.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
54 */
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
55 protected String name;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
56
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
57 /**
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
58 * The description of the service factory.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
59 */
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
60 protected String description;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
61
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
62 /**
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
63 * The loaded class used to build the concrete service.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
64 */
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
65 protected Class serviceClass;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
66
89
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
67 /**
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
68 * Default constructor.
d348fe1fd822 More javadoc (fixes small glitches, too).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 77
diff changeset
69 */
69
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
70 public DefaultServiceFactory() {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
71 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
72
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
73 public String getName() {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
74 return name;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
75 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
76
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
77 public String getDescription() {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
78 return description;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
79 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
80
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
81 public Service createService(Object globalContext) {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
82 try {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
83 Service service = (Service)serviceClass.newInstance();
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
84
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
85 service.setup(this, globalContext);
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
86
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
87 return service;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
88 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
89 catch (InstantiationException ie) {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
90 logger.error(ie.getLocalizedMessage(), ie);
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
91 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
92 catch (IllegalAccessException iae) {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
93 logger.error(iae.getLocalizedMessage(), iae);
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
94 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
95 catch (ClassCastException cce) {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
96 logger.error(cce.getLocalizedMessage(), cce);
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
97 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
98
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
99 return null;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
100 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
101
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
102 public void setup(Document config, Node factoryNode) {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
103
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
104 description = Config.getStringXPath(
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
105 factoryNode, XPATH_DESCRIPTION, DEFAULT_DESCRIPTION);
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
106
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
107 name = Config.getStringXPath(
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
108 factoryNode, XPATH_NAME, toString());
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
109
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
110 String service = Config.getStringXPath(
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
111 factoryNode, XPATH_SERVICE, DEFAULT_SERVICE);
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
112
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
113 try {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
114 serviceClass = Class.forName(service);
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
115 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
116 catch (ClassNotFoundException cnfe) {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
117 logger.error(cnfe.getLocalizedMessage(), cnfe);
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
118 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
119
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
120 if (serviceClass == null) {
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
121 serviceClass = DefaultService.class;
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
122 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
123 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
124 }
498bb84334d0 Added base class for services and service factories.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
125 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org