Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultArtifactFactory.java @ 13:0d6badf6af42

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Added not yet working backend to artifact database. artifacts/trunk@28 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 06 Sep 2009 16:16:54 +0000
parents e8626caac353
children 5a6b6a3debc7
rev   line source
10
e8626caac353 * Made Artifact life cycle symmetric: setup/endOfLife.
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1 package de.intevation.artifactdatabase;
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2
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3 import org.w3c.dom.Document;
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4 import org.w3c.dom.Node;
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5
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6 import de.intevation.artifacts.ArtifactFactory;
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7 import de.intevation.artifacts.Artifact;
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8
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9 public class DefaultArtifactFactory
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10 implements ArtifactFactory
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11 {
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12 public static final String XPATH_TTL = "@ttl";
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13 public static final String XPATH_NAME = "@name";
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14 public static final String XPATH_DESCRIPTION = "@description";
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15 public static final String XPATH_ARTIFACT = "@artifact";
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16
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17 public static final String DEFAULT_DESCRIPTION =
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18 "No description available";
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19
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20 public static final String DEFAULT_ARTIFACT =
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21 "de.intevation.artifactdatabase.DefaultArtifact";
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22
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23 protected Long ttl;
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24
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25 protected String name;
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26
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27 protected String description;
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28
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29 protected Class artifactClass;
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30
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31 public DefaultArtifactFactory() {
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32 }
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33
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34 public String getName() {
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35 return name;
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36 }
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37
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38 public String getDescription() {
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39 return description;
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40 }
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41
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42 public Artifact createArtifact(String identifier, Object context) {
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43
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44 try {
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45 Artifact artifact =
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46 (Artifact)artifactClass.newInstance();
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47
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48 artifact.setup(identifier, context);
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49
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50 return artifact;
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51 }
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52 catch (InstantiationException ie) {
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53 ie.printStackTrace(System.err);
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54 }
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55 catch (IllegalAccessException iae) {
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56 iae.printStackTrace(System.err);
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57 }
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58 catch (ClassCastException cce) {
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59 cce.printStackTrace(System.err);
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60 }
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61
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62 return null;
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63 }
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64
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65 public void setup(Document document, Node factoryNode) {
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66
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67 String ttlString = Config.getStringXPath(factoryNode, XPATH_TTL);
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68 if (ttlString != null) {
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69 try {
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70 ttl = Long.valueOf(ttlString);
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71 }
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72 catch (NumberFormatException nfe) {
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73 nfe.printStackTrace(System.err);
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74 }
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75 }
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77 description = Config.getStringXPath(
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78 factoryNode, XPATH_DESCRIPTION, DEFAULT_DESCRIPTION);
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79
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80 name = Config.getStringXPath(
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81 factoryNode, XPATH_NAME, toString());
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82
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83 String artifact = Config.getStringXPath(
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84 factoryNode, XPATH_ARTIFACT, DEFAULT_ARTIFACT);
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85
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86 try {
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87 artifactClass = Class.forName(artifact);
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88 }
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89 catch (ClassNotFoundException cnfe) {
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90 cnfe.printStackTrace(System.err);
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91 }
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92
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93 if (artifactClass == null) {
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94 artifactClass = DefaultArtifact.class;
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95 }
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96 }
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97
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98 public Long timeToLiveUntouched(Artifact artifact, Object context) {
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99 return ttl;
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100 }
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101 }
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102 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org