Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/DefaultArtifactFactory.java @ 57:cf9848c85755 0.2

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RELEASE 0.2: Summarized NEWS and Changes artifacts/trunk@338 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Hans Plum <hans.plum@intevation.de>
date Fri, 13 Nov 2009 18:37:51 +0000
parents 5e4bc24ea438
children d4c4c23847f5
rev   line source
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1 package de.intevation.artifactdatabase;
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3 import org.w3c.dom.Document;
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4 import org.w3c.dom.Node;
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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 import de.intevation.artifacts.ArtifactSerializer;
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10 import org.apache.log4j.Logger;
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11
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12 /**
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13 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
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14 */
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15 public class DefaultArtifactFactory
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16 implements ArtifactFactory
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17 {
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18 private static Logger logger =
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19 Logger.getLogger(DefaultArtifactFactory.class);
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20
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21 public static final String XPATH_TTL = "@ttl";
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22 public static final String XPATH_NAME = "@name";
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23 public static final String XPATH_DESCRIPTION = "@description";
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24 public static final String XPATH_ARTIFACT = "@artifact";
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26 public static final String DEFAULT_DESCRIPTION =
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27 "No description available";
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29 public static final String DEFAULT_ARTIFACT =
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30 "de.intevation.artifactdatabase.DefaultArtifact";
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32 protected Long ttl;
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34 protected String name;
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36 protected String description;
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38 protected Class artifactClass;
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40 public DefaultArtifactFactory() {
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41 }
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43 public String getName() {
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44 return name;
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45 }
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47 public String getDescription() {
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48 return description;
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49 }
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51 public Artifact createArtifact(String identifier, Object context) {
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53 try {
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54 Artifact artifact =
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55 (Artifact)artifactClass.newInstance();
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56
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57 artifact.setup(identifier, this, context);
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59 return artifact;
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60 }
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61 catch (InstantiationException ie) {
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62 logger.error(ie.getLocalizedMessage(), ie);
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63 }
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64 catch (IllegalAccessException iae) {
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65 logger.error(iae.getLocalizedMessage(), iae);
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66 }
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67 catch (ClassCastException cce) {
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68 logger.error(cce.getLocalizedMessage(), cce);
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69 }
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71 return null;
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72 }
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74 public void setup(Document document, Node factoryNode) {
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76 String ttlString = Config.getStringXPath(factoryNode, XPATH_TTL);
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77 if (ttlString != null) {
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78 try {
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79 ttl = Long.valueOf(ttlString);
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80 }
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81 catch (NumberFormatException nfe) {
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82 logger.warn("'" + ttlString + "' is not an integer.");
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83 }
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84 }
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86 description = Config.getStringXPath(
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87 factoryNode, XPATH_DESCRIPTION, DEFAULT_DESCRIPTION);
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88
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89 name = Config.getStringXPath(
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90 factoryNode, XPATH_NAME, toString());
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91
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92 String artifact = Config.getStringXPath(
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93 factoryNode, XPATH_ARTIFACT, DEFAULT_ARTIFACT);
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94
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95 try {
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96 artifactClass = Class.forName(artifact);
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97 }
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98 catch (ClassNotFoundException cnfe) {
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99 logger.error(cnfe.getLocalizedMessage(), cnfe);
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100 }
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101
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102 if (artifactClass == null) {
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103 artifactClass = DefaultArtifact.class;
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104 }
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105 }
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106
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107 public Long timeToLiveUntouched(Artifact artifact, Object context) {
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108 return ttl;
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109 }
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110
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111 public ArtifactSerializer getSerializer() {
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112 return DefaultArtifactSerializer.INSTANCE;
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113 }
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114 }
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115 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org