Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/Config.java @ 2452:0235cdb62c98

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Issue 563. Handle the size of the toolbar to show all elements. flys-client/trunk@4135 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Thu, 08 Mar 2012 15:39:29 +0000
parents d81533df4138
children
rev   line source
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8facd8545a12 Added a global configuration for the client and classes providing methods to retrieve these information.
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1 package de.intevation.flys.client.client;
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3 import com.google.gwt.i18n.client.LocaleInfo;
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5 import com.google.gwt.xml.client.Document;
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6 import com.google.gwt.xml.client.Node;
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8
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9 /**
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10 * A class that is used to handle the global configuration of this client. You
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11 * can retrieve an instance of this class using the <code>getInstance</code>
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12 * methods. <b>NOTE:</b> the configuration is initialized using {@link
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13 * getInstance(Document)} the first time.
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14 *
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15 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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16 */
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17 public class Config {
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18
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19 /** The instance of the configuration. */
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20 protected static Config INSTANCE;
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21
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22 /** The xml document that contains the configuration options. */
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23 protected Document config;
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25
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26 /**
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27 * Get an instance by using {@link getInstance(Document)} or {@link
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28 * getInstance()}.
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29 */
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30 private Config(Document config) {
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31 this.config = config;
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32 }
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34
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35 /**
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36 * Returns an instance of this class and initializes the configuration of
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37 * this has not been done so far.
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38 *
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39 * @param config The client configuration.
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40 *
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41 * @return an instance of this Config class.
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42 */
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43 public static Config getInstance(Document config) {
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44 if (INSTANCE == null) {
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45 INSTANCE = new Config(config);
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46 }
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48 return INSTANCE;
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49 }
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51
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52 /**
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53 * Returns an instance of this class. If it has not been initialized with a
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54 * valid configuration, null is returned.
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55 *
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56 * @return an instance of this class or null, if the Config has not been
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57 * initialized using {@link getInstance(Document)} so far.
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58 */
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59 public static Config getInstance() {
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60 return INSTANCE;
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61 }
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63
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64 /**
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65 * Returns the URL of the artifact server.
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66 *
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67 * @return the artifact server url.
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68 */
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69 public String getServerUrl() {
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70 Node server = config.getElementsByTagName("server").item(0);
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71 return server.getFirstChild().getNodeValue();
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72 }
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73
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74
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75 /**
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76 * Returns the name of the current locale.
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77 *
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78 * @return the name of the current locale.
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79 */
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80 public String getLocale() {
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81 return LocaleInfo.getCurrentLocale().getLocaleName();
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82 }
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83
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85 /**
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86 * Returns the integer configured at
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87 * <i>/config/projectlist/update-interval/text()</i> or -1 if an error
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88 * occured or no such option is defined.
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89 *
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90 * @return the update interval of the project list.
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91 */
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92 public int getProjectListUpdateInterval() {
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93 Node projectlist = config.getElementsByTagName("projectlist").item(0);
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94
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95 if (projectlist == null) {
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96 return -1;
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97 }
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98
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99 Node interval = config.getElementsByTagName("update-interval").item(0);
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100
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101 if (interval == null) {
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102 return -1;
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103 }
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104
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105 String value = interval.getFirstChild().getNodeValue();
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106
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107 return value != null ? Integer.valueOf(value) : -1;
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108 }
9
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109 }
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110 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org