1 | /* |
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2 | * Jeti, a Java Jabber client, Copyright (C) 2004 E.S. de Boer |
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3 | * |
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4 | * This program is free software; you can redistribute it and/or modify |
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5 | * it under the terms of the GNU General Public License as published by |
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6 | * the Free Software Foundation; either version 2 of the License, or |
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7 | * (at your option) any later version. |
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8 | * |
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9 | * This program is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | * GNU General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU General Public License |
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15 | * along with this program; if not, write to the Free Software |
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16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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17 | * |
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18 | * For questions, comments etc, |
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19 | * use the website at http://jeti.jabberstudio.org |
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20 | * or mail me at eric@jeti.tk or Jabber at jeti@jabber.org |
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21 | * |
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22 | * Created on 8-aug-2004 |
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23 | */ |
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24 | |
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25 | package nu.fw.jeti.util; |
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26 | |
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27 | import java.io.IOException; |
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28 | import java.io.InputStream; |
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29 | import java.net.URL; |
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30 | import java.util.LinkedList; |
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31 | import java.util.List; |
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32 | |
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33 | import javax.xml.parsers.FactoryConfigurationError; |
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34 | import javax.xml.parsers.ParserConfigurationException; |
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35 | import javax.xml.parsers.SAXParser; |
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36 | import javax.xml.parsers.SAXParserFactory; |
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37 | |
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38 | import nu.fw.jeti.backend.Start; |
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39 | import nu.fw.jeti.jabber.JID; |
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40 | import nu.fw.jeti.jabber.elements.DiscoItem; |
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41 | |
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42 | import org.xml.sax.Attributes; |
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43 | import org.xml.sax.SAXException; |
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44 | import org.xml.sax.helpers.DefaultHandler; |
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45 | |
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46 | /** |
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47 | * @author E.S. de Boer |
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48 | * |
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49 | */ |
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50 | public class QueryServers |
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51 | { |
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52 | private static List servers; |
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53 | |
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54 | public static List getServers() |
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55 | { |
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56 | if(servers==null) readServerXML(); |
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57 | return servers; |
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58 | } |
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59 | |
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60 | private static void readServerXML() |
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61 | { |
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62 | SAXParser parser=null; |
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63 | try{parser = SAXParserFactory.newInstance().newSAXParser();} |
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64 | catch (FactoryConfigurationError ex){ex.printStackTrace();} |
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65 | catch (SAXException ex){ex.printStackTrace();} |
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66 | catch (ParserConfigurationException ex){ex.printStackTrace();} |
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67 | InputStream data = null; |
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68 | try |
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69 | { |
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70 | data = (new URL(Start.dataURL + "servers.xml")).openStream(); |
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71 | } |
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72 | catch (IOException ex) |
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73 | { |
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74 | //ex.printStackTrace(); |
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75 | data = QueryServers.class.getResourceAsStream("/servers.xml"); |
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76 | } |
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77 | List items = new LinkedList(); |
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78 | if(data != null) |
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79 | { |
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80 | try |
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81 | { |
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82 | parser.parse(data,new DiscoItemsHandler(items)); |
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83 | } |
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84 | catch (SAXException ex) |
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85 | { |
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86 | ex.printStackTrace(); |
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87 | } |
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88 | catch (IOException ex) |
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89 | { |
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90 | ex.printStackTrace(); |
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91 | } |
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92 | } |
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93 | servers = items; |
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94 | } |
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95 | |
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96 | |
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97 | static class DiscoItemsHandler extends DefaultHandler |
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98 | { |
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99 | private List items; |
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100 | |
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101 | public DiscoItemsHandler(List items) |
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102 | { |
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103 | this.items = items; |
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104 | } |
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105 | |
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106 | public void startElement(String uri, String localName, String qName, Attributes attr) |
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107 | { |
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108 | if(qName.equals("item")) |
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109 | { |
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110 | if(items==null)items = new LinkedList(); |
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111 | try |
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112 | { |
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113 | JID jid = JID.checkedJIDFromString(attr.getValue("jid")); |
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114 | items.add(new DiscoItem(jid,attr.getValue("name"),attr.getValue("node"),attr.getValue("action"))); |
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115 | } catch (InstantiationException e) |
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116 | { |
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117 | Log.xmlParseException(e); |
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118 | } |
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119 | } |
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120 | } |
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121 | } |
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122 | } |
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123 | /* |
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124 | * Overrides for emacs |
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125 | * Local variables: |
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126 | * tab-width: 4 |
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127 | * End: |
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128 | */ |
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