Mercurial > dive4elements > river
annotate gwt-client/src/main/java/org/dive4elements/river/client/server/meta/Converter.java @ 9803:a440ebd5c23b 3.2.x tip
Avoid using outdated mod_wsgi in Docker setup
Run Wiki in standalone mode behind reverse proxy, which is provided by
a more up-to-date Apache web server. The wiki container is still based
on CentOS 7, because the included SSO integration component cannot be
build with more recent libraries.
author | Tom Gottfried <tom@intevation.de> |
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date | Wed, 21 Aug 2024 16:54:17 +0200 |
parents | 0a5239a1e46e |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.client.server.meta; |
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10 |
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11 import org.w3c.dom.Document; |
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12 import org.w3c.dom.Element; |
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13 import org.w3c.dom.Node; |
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14 import org.w3c.dom.NodeList; |
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15 import org.w3c.dom.Attr; |
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16 import org.w3c.dom.NamedNodeMap; |
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17 |
9726 | 18 import org.apache.logging.log4j.Logger; |
19 import org.apache.logging.log4j.LogManager; | |
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20 |
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21 import org.dive4elements.river.client.shared.model.DataCageTree; |
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22 import org.dive4elements.river.client.shared.model.DataCageNode; |
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23 import org.dive4elements.river.client.shared.model.AttrList; |
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24 |
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25 import java.util.ArrayList; |
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26 import java.util.Map; |
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27 import java.util.HashMap; |
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28 |
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29 import org.dive4elements.artifacts.common.utils.XMLUtils; |
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30 |
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31 /** |
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32 * Converts document parts (meta-data xml) to datacagenodes/trees, |
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33 * which are shown in datacage widgets. |
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34 */ |
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35 public class Converter |
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36 { |
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38 |
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39 |
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40 public interface NodeConverter |
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41 { |
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42 DataCageNode convert(Element node, Converter converter); |
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43 |
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44 } // interface NodeConverter |
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45 |
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46 public static class NameConverter implements NodeConverter { |
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47 public DataCageNode convert(Element node, Converter converter) { |
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48 //System.err.println("NameConverter called"); |
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49 DataCageNode out = new DataCageNode( |
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50 node.getAttribute("name"), |
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51 toAttrList(node.getAttributes())); |
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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 } // class NameConverter |
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56 |
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57 public static class I18NConverter implements NodeConverter { |
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58 public DataCageNode convert(Element node, Converter converter) { |
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59 //System.err.println("I18NConverter called"); |
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60 |
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61 String name = node.getLocalName(); |
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62 String desc = node.hasAttribute("description") |
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63 ? node.getAttribute("description") |
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64 : "${" + name + "}"; |
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65 |
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66 DataCageNode out = |
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67 new DataCageNode(name, desc, toAttrList(node.getAttributes())); |
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68 |
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69 converter.convertChildren(out, node); |
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70 return out; |
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71 } |
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72 } // I18NConverter |
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73 |
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75 new HashMap<String, NodeConverter>(); | |
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76 |
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77 public static final NodeConverter NAME_CONVERTER = new NameConverter(); |
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78 public static final NodeConverter I18N_CONVERTER = new I18NConverter(); |
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79 |
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80 static { |
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81 converters.put("river", NAME_CONVERTER); |
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82 converters.put("gauge", NAME_CONVERTER); |
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83 converters.put("historical", NAME_CONVERTER); |
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84 converters.put("column", NAME_CONVERTER); |
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85 } |
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86 |
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87 |
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88 /** Trivial constructor. */ |
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89 public Converter() { |
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90 } |
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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 log.debug("convert called"); |
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95 |
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96 if (log.isDebugEnabled()) { |
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97 log.debug(XMLUtils.toString(document)); |
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98 } |
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99 |
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100 ArrayList<DataCageNode> roots = new ArrayList<DataCageNode>(); |
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101 NodeList nodes = document.getChildNodes(); |
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102 for (int i = 0, N = nodes.getLength(); i < N; ++i) { |
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103 Node node = nodes.item(i); |
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104 if (node.getNodeType() == Node.ELEMENT_NODE) { |
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105 Element ele = (Element)node; |
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106 roots.add(convertElement(ele)); |
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107 } |
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108 } |
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109 return roots.isEmpty() |
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110 ? new DataCageTree() |
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111 : new DataCageTree(roots.get(0)); |
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112 } |
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113 |
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114 protected void convertChildren(DataCageNode parent, Element sub) { |
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115 //System.err.println("convertChildren called"); |
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116 NodeList children = sub.getChildNodes(); |
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117 for (int i = 0, N = children.getLength(); i < N; ++i) { |
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118 Node child = children.item(i); |
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119 if (child.getNodeType() == Node.ELEMENT_NODE) { |
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120 Element childele = (Element)child; |
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121 parent.addChild(convertElement(childele)); |
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122 |
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123 if (childele.hasAttribute("description")) |
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124 log.debug("nwd: " + childele.getAttribute("description")); |
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125 } |
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126 } // for all children |
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127 } |
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128 |
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129 private DataCageNode convertElement(Element element) { |
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130 String name = element.getLocalName(); |
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131 |
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132 log.debug("search for name: " + name); |
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133 |
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134 NodeConverter converter = converters.get(name); |
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135 if (converter == null) { |
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136 converter = I18N_CONVERTER; |
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137 } |
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138 return converter.convert(element, this); |
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139 |
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140 } |
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141 |
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142 |
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143 /** |
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144 * Creates key/value pairs from Nodes Attributes. |
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145 */ |
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146 public static AttrList toAttrList(NamedNodeMap nodeMap) { |
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147 if (nodeMap == null) { |
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148 return null; |
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149 } |
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150 int N = nodeMap.getLength(); |
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151 |
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152 if (N == 0) { |
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153 return null; |
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154 } |
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155 |
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156 AttrList result = new AttrList(N); |
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157 |
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158 for (int i = 0; i < N; ++i) { |
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159 Node node = nodeMap.item(i); |
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160 if (node.getNodeType() == Node.ATTRIBUTE_NODE) { |
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161 Attr attr = (Attr)node; |
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162 String key = attr.getName(); |
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163 String value = attr.getValue(); |
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164 result.add(key, value); |
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165 } |
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166 } |
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167 |
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168 return result; |
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169 } |
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170 } |
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171 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |