annotate flys-client/src/main/java/de/intevation/flys/client/server/CollectionItemAttributeServiceImpl.java @ 1293:e88cd17b3420

Bugfix: #233 Redraw computation table if no data was retrieved to display an error message immediatly. flys-client/trunk@2906 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 07 Oct 2011 13:39:35 +0000
parents bdc270ea6195
children d9cb362b8b34
rev   line source
1285
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1 package de.intevation.flys.client.server;
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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.NodeList;
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6
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7 import com.google.gwt.user.server.rpc.RemoteServiceServlet;
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8
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9 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
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10 import de.intevation.artifacts.httpclient.http.HttpClient;
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11 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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12 import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler;
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13
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14 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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15 import de.intevation.artifacts.common.utils.XMLUtils;
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16
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17 import de.intevation.flys.client.shared.exceptions.ServerException;
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18 import de.intevation.flys.client.client.services.CollectionItemAttributeService;
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19
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20 import de.intevation.flys.client.shared.model.Collection;
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21 import de.intevation.flys.client.shared.model.Artifact;
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22 import de.intevation.flys.client.shared.model.CollectionItemAttribute;
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23 import de.intevation.flys.client.shared.model.Style;
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24 import de.intevation.flys.client.shared.model.StyleSetting;
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25
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26
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27 /**
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28 *
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29 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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30 */
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31 public class CollectionItemAttributeServiceImpl
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32 extends RemoteServiceServlet
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33 implements CollectionItemAttributeService
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34 {
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35 public static final String XPATH_RESULT = "/art:result/text()";
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36
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37 public static final String OPERATION_FAILURE = "FAILED";
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38
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39
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40 public CollectionItemAttribute getCollectionItemAttribute(
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41 Collection collection,
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42 String artifact,
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43 String url,
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44 String locale)
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45 throws ServerException
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46 {
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47 System.out.println(
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48 "CollectionItemAttributeServiceImpl.getCollectionItemAttribute");
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49
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50 Document requestDoc = XMLUtils.newDocument();
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51
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52 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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53 requestDoc,
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54 ArtifactNamespaceContext.NAMESPACE_URI,
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55 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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56
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57 Element action = ec.create("action");
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58
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59 Element type = ec.create("type");
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60 ec.addAttr(type, "name", "getitemattribute", false);
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61
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62 Element art = ec.create("artifact");
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63 ec.addAttr(art, "uuid", artifact, false);
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64
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65 type.appendChild(art);
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66 action.appendChild(type);
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67 requestDoc.appendChild (action);
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68
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69 try {
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70 HttpClient client = new HttpClientImpl(url, locale);
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71 Document res = (Document) client.doCollectionAction(
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72 requestDoc,
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73 collection.identifier(),
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74 new DocumentResponseHandler());
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75 return readXML (res, artifact);
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76 }
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77 catch (ConnectionException ce) {
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78 System.err.println(ce.getLocalizedMessage());
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79 }
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80 throw new ServerException("");
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81 }
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82
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83
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84 public void setCollectionItemAttribute(
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85 Collection collection,
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86 String artifact,
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87 String url,
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88 String locale,
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89 CollectionItemAttribute attributes)
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90 throws ServerException
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91 {
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92 System.out.println(
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93 "CollectionItemAttributeServiceImpl.setCollectionItemAttribute");
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94
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95 Document doc = writeXML(attributes, artifact);
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96
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97 try {
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98 HttpClient client = new HttpClientImpl(url, locale);
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99 Document res = (Document) client.doCollectionAction(
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100 doc,
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101 collection.identifier(),
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102 new DocumentResponseHandler());
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103
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104 return;
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105 }
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106 catch (ConnectionException ce) {
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107 System.err.println(ce.getLocalizedMessage());
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108 }
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109 throw new ServerException("");
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110 }
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111
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112 protected CollectionItemAttribute readXML (Document doc, String artifact) {
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113 CollectionItemAttribute cia = new CollectionItemAttribute();
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114 cia.setArtifact(artifact);
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115
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116 Element root = doc.getDocumentElement();
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117 NodeList themes = root.getElementsByTagName("art:themes");
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118
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119 if (themes.getLength() != 1) {
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120 return null;
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121 }
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122
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123 Element e = (Element) themes.item(0);
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124 NodeList items = e.getElementsByTagName("theme");
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125
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126 for (int i = 0; i < items.getLength(); i++) {
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127 cia.appendStyle(getStyle ((Element) items.item(i)));
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128 }
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129
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130 return cia;
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131 }
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132
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133
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134 protected Document writeXML (
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135 CollectionItemAttribute attributes,
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136 String artifact)
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137 {
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138 Document styles = XMLUtils.newDocument();
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139
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140 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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141 styles,
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142 ArtifactNamespaceContext.NAMESPACE_URI,
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143 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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144 Element action = ec.create("action");
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145 Element type = ec.create("type");
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146 type.setAttribute("name", "setitemattribute");
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147 Element art = ec.create("artifact");
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148 art.setAttribute("uuid", artifact);
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149 Element attr = ec.create("attribute");
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150 Element themes = ec.create("themes");
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151 action.appendChild(type);
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152 type.appendChild(art);
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153 art.appendChild(attr);
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154 attr.appendChild(themes);
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155
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156 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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157 styles,
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158 "",
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159 "");
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160
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161 for (int i = 0; i < attributes.getNumStyles(); i++) {
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162 Style s = attributes.getStyle(i);
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163 Element theme = creator.create("theme");
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164 theme.setAttribute("name", s.getName());
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165 theme.setAttribute("facet", s.getFacet());
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166 theme.setAttribute("index", String.valueOf(i));
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167 for (int j = 0; j < s.getNumSettings(); j++) {
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168 StyleSetting set = s.getSetting(j);
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169 Element field = creator.create("field");
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170 field.setAttribute("name", set.getName());
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171 field.setAttribute("display", set.getDisplayName());
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172 field.setAttribute("default", set.getDefaultValue());
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173 field.setAttribute("hints", set.getHints());
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174 field.setAttribute("type", set.getType());
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175 theme.appendChild(field);
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176 }
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177 themes.appendChild(theme);
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178 }
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179 styles.appendChild(action);
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180 return styles;
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181 }
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182
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183
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184 protected Style getStyle (Element element) {
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185
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186 if (!element.getTagName().equals("theme")) {
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187 return null;
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188 }
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189
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190 NodeList list = element.getElementsByTagName("field");
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191 Style style = new Style();
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192
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193 style.setName (element.getAttribute("name"));
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194 style.setFacet (element.getAttribute("facet"));
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195 for(int i = 0; i < list.getLength(); i++) {
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196 Element e = (Element) list.item(i);
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197 StyleSetting set = new StyleSetting (
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198 e.getAttribute("name"),
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199 e.getAttribute("default"),
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200 e.getAttribute("display"),
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201 e.getAttribute("hints"),
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202 e.getAttribute("type"));
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203 style.appendStyleSetting(set);
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204 }
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205 return style;
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206 }
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207 }
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208 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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