Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/meta/Converter.java @ 892:63b258bf365c

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Bugfix: Use name instead of description for loading new facets via Datacage. flys-client/trunk@2735 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 14 Sep 2011 10:00:55 +0000
parents ffb98b228b3c
children ab8eb2f544f2
rev   line source
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1 package de.intevation.flys.client.server.meta;
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2
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3 import org.w3c.dom.Document;
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4 import org.w3c.dom.Element;
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5 import org.w3c.dom.Node;
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6 import org.w3c.dom.NodeList;
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7 import org.w3c.dom.Attr;
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8 import org.w3c.dom.NamedNodeMap;
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9
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10
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11 import de.intevation.flys.client.shared.model.DataCageTree;
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12 import de.intevation.flys.client.shared.model.DataCageNode;
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13 import de.intevation.flys.client.shared.model.AttrList;
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14
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15 import java.util.ArrayList;
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16 import java.util.Map;
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17 import java.util.HashMap;
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18
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19 import de.intevation.artifacts.common.utils.XMLUtils;
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20
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21 public class Converter
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22 {
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23 public interface NodeConverter
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24 {
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25 DataCageNode convert(Element node, Converter converter);
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26
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27 } // interface NodeConverter
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28
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29 public static class NameConverter implements NodeConverter {
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30 public DataCageNode convert(Element node, Converter converter) {
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31 //System.err.println("NameConverter called");
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32 DataCageNode out = new DataCageNode(
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33 node.getAttribute("name"),
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34 toAttrList(node.getAttributes()));
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35 converter.convertChildren(out, node);
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36 return out;
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37 }
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38 } // class NameConverter
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39
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40 public static class I18NConverter implements NodeConverter {
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41 public DataCageNode convert(Element node, Converter converter) {
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42 //System.err.println("I18NConverter called");
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44 String name = node.getLocalName();
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45 String desc = node.hasAttribute("description")
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46 ? node.getAttribute("description")
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47 : "${" + name + "}";
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48
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49 DataCageNode out =
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50 new DataCageNode(name, desc, toAttrList(node.getAttributes()));
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51
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52 converter.convertChildren(out, node);
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53 return out;
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54 }
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55 } // I18NConverter
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56
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57 protected Map<String, NodeConverter> converters;
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58
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59 protected void convertChildren(DataCageNode parent, Element sub) {
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60 //System.err.println("convertChildren called");
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61 NodeList children = sub.getChildNodes();
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62 for (int i = 0, N = children.getLength(); i < N; ++i) {
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63 Node child = children.item(i);
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64 if (child.getNodeType() == Node.ELEMENT_NODE) {
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65 String name = child.getLocalName();
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66 NodeConverter converter = converters.get(name);
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67 if (converter == null) {
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68 converter = I18N_CONVERTER;
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69 }
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70 DataCageNode son = converter.convert(
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71 (Element)child, this);
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72 parent.addChild(son);
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73 }
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74 } // for all children
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75 }
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76
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77 public Converter() {
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78 converters = new HashMap<String, NodeConverter>();
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79 registerConverters();
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80 }
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81
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82 public static final NodeConverter NAME_CONVERTER = new NameConverter();
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83 public static final NodeConverter I18N_CONVERTER = new I18NConverter();
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84
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85 protected void registerConverters() {
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86 System.err.println("register converters called");
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87 converters.put("river", NAME_CONVERTER);
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88 converters.put("gauge", NAME_CONVERTER);
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89 converters.put("historical", NAME_CONVERTER);
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90 converters.put("column", NAME_CONVERTER);
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91 }
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92
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93 public DataCageTree convert(Document document) {
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94 System.err.println("convert called");
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95 //System.err.println(XMLUtils.toString(document));
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96
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97 ArrayList<DataCageNode> roots = new ArrayList<DataCageNode>();
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98 NodeList nodes = document.getChildNodes();
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99 for (int i = 0, N = nodes.getLength(); i < N; ++i) {
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100 Node node = nodes.item(i);
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101 if (node.getNodeType() == Node.ELEMENT_NODE) {
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102 System.err.println("search for name: " + node.getLocalName());
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103 NodeConverter converter = converters.get(node.getLocalName());
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104 if (converter == null) {
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105 converter = I18N_CONVERTER;
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106 }
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107 roots.add(converter.convert((Element)node, this));
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108 }
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109 }
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110 return roots.isEmpty()
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111 ? new DataCageTree()
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112 : new DataCageTree(roots.get(0));
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113 }
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115 public static AttrList toAttrList(NamedNodeMap nodeMap) {
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116 if (nodeMap == null) {
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117 return null;
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118 }
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119 int N = nodeMap.getLength();
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120
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121 if (N == 0) {
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122 return null;
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123 }
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124
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125 AttrList result = new AttrList(N);
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126
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127 for (int i = 0; i < N; ++i) {
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128 Node node = nodeMap.item(i);
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129 if (node.getNodeType() == Node.ATTRIBUTE_NODE) {
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130 Attr attr = (Attr)node;
813
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131 String key = attr.getName();
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132 String value = attr.getValue();
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133 result.add(key, value);
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134 }
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135 }
57ea5af8a967 Meta data service converter: transfer attributes to client, too.
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136
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137 return result;
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138 }
286
0fa8bf8a2295 Datacage: Better converter for incoming XML tree
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139 }
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140 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org