Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/CollectionItemAttributeServiceImpl.java @ 2934:a5ebe2e2c772

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issue457 flys-client/trunk@4860 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Tue, 03 Jul 2012 12:13:36 +0000
parents cd068ff7966d
children 7a94d5e7fc3d
rev   line source
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0f3b19df1880 Added new service and model for collection item attributes.
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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 org.apache.log4j.Logger;
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8
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9 import com.google.gwt.user.server.rpc.RemoteServiceServlet;
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10
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11 import de.intevation.artifacts.httpclient.exceptions.ConnectionException;
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12 import de.intevation.artifacts.httpclient.http.HttpClient;
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13 import de.intevation.artifacts.httpclient.http.HttpClientImpl;
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14 import de.intevation.artifacts.httpclient.http.response.DocumentResponseHandler;
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15
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16 import de.intevation.artifacts.common.ArtifactNamespaceContext;
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17 import de.intevation.artifacts.common.utils.XMLUtils;
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18
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19 import de.intevation.flys.client.shared.exceptions.ServerException;
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20 import de.intevation.flys.client.client.services.CollectionItemAttributeService;
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21
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22 import de.intevation.flys.client.shared.model.Collection;
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23 import de.intevation.flys.client.shared.model.CollectionItemAttribute;
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24 import de.intevation.flys.client.shared.model.Style;
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25 import de.intevation.flys.client.shared.model.StyleSetting;
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26
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27
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28 /**
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29 *
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30 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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31 */
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32 public class CollectionItemAttributeServiceImpl
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33 extends RemoteServiceServlet
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34 implements CollectionItemAttributeService
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35 {
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36 private static final Logger logger =
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37 Logger.getLogger(CollectionItemAttributeServiceImpl.class);
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38
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39
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40 public static final String XPATH_RESULT = "/art:result/text()";
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41
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42 public static final String OPERATION_FAILURE = "FAILED";
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43
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44 public static final String ERROR_NO_STYLES_FOUND =
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45 "error_no_theme_styles_found";
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46
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47
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48 public CollectionItemAttribute getCollectionItemAttribute(
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49 Collection collection,
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50 String artifact,
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51 String locale)
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52 throws ServerException
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53 {
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54 logger.info(
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55 "CollectionItemAttributeServiceImpl.getCollectionItemAttribute");
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56
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57 String url = getServletContext().getInitParameter("server-url");
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58
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59 Document requestDoc = XMLUtils.newDocument();
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60
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61 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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62 requestDoc,
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63 ArtifactNamespaceContext.NAMESPACE_URI,
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64 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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65
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66 Element action = ec.create("action");
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67
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68 Element type = ec.create("type");
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69 ec.addAttr(type, "name", "getitemattribute", false);
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70
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71 Element art = ec.create("artifact");
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72 ec.addAttr(art, "uuid", artifact, false);
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73
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74 type.appendChild(art);
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75 action.appendChild(type);
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76 requestDoc.appendChild (action);
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77
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78 try {
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79 HttpClient client = new HttpClientImpl(url, locale);
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80 Document res = (Document) client.doCollectionAction(
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81 requestDoc,
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82 collection.identifier(),
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83 new DocumentResponseHandler());
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84 return readXML (res, artifact);
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85 }
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86 catch (ConnectionException ce) {
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87 logger.error(ce, ce);
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88 }
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89
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90 throw new ServerException(ERROR_NO_STYLES_FOUND);
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91 }
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92
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93
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94 public void setCollectionItemAttribute(
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95 Collection collection,
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96 String artifact,
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97 String locale,
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98 CollectionItemAttribute attributes)
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99 throws ServerException
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100 {
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101 logger.info(
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102 "CollectionItemAttributeServiceImpl.setCollectionItemAttribute");
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103
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104 String url = getServletContext().getInitParameter("server-url");
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105
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106 Document doc = writeXML(attributes, artifact);
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107
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108 try {
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109 HttpClient client = new HttpClientImpl(url, locale);
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110 Document res = (Document) client.doCollectionAction(
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111 doc,
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112 collection.identifier(),
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113 new DocumentResponseHandler());
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114
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115 return;
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116 }
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117 catch (ConnectionException ce) {
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118 logger.error(ce, ce);
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119 throw new ServerException(ce.getLocalizedMessage());
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120 }
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121 }
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122
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123 protected CollectionItemAttribute readXML(Document doc, String artifact)
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124 throws ServerException
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125 {
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126 CollectionItemAttribute cia = new CollectionItemAttribute();
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127 cia.setArtifact(artifact);
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128
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129 Element root = doc.getDocumentElement();
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130 NodeList themes = root.getElementsByTagName("art:themes");
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131
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132 if (themes == null || themes.getLength() == 0) {
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133 throw new ServerException(ERROR_NO_STYLES_FOUND);
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134 }
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135
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136 Element e = (Element) themes.item(0);
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137 NodeList items = e.getElementsByTagName("theme");
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138
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139 for (int i = 0; i < items.getLength(); i++) {
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140 Style s = StyleHelper.getStyle ((Element) items.item(i));
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141 if(s == null) {
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142 throw new ServerException(ERROR_NO_STYLES_FOUND);
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143 }
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144 else {
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145 cia.appendStyle(s);
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146 }
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147 }
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148
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149 return cia;
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150 }
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151
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152
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153 protected Document writeXML (
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154 CollectionItemAttribute attributes,
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155 String artifact)
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156 {
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157 Document styles = XMLUtils.newDocument();
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158
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159 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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160 styles,
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161 ArtifactNamespaceContext.NAMESPACE_URI,
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162 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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163 Element action = ec.create("action");
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164 Element type = ec.create("type");
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165 type.setAttribute("name", "setitemattribute");
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166 Element art = ec.create("artifact");
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167 art.setAttribute("uuid", artifact);
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168 Element attr = ec.create("attribute");
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169 Element themes = ec.create("themes");
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170 action.appendChild(type);
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171 type.appendChild(art);
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172 art.appendChild(attr);
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173 attr.appendChild(themes);
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174
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175 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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176 styles,
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177 "",
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178 "");
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179
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180 for (int i = 0; i < attributes.getNumStyles(); i++) {
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181 Style s = attributes.getStyle(i);
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182 Element theme = creator.create("theme");
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183 theme.setAttribute("name", s.getName());
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184 theme.setAttribute("facet", s.getFacet());
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185 theme.setAttribute("index", String.valueOf(s.getIndex()));
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186 for (int j = 0; j < s.getNumSettings(); j++) {
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187 StyleSetting set = s.getSetting(j);
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188 Element field = creator.create("field");
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189 field.setAttribute("name", set.getName());
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190 field.setAttribute("display", set.getDisplayName());
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191 field.setAttribute("default", set.getDefaultValue());
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192 field.setAttribute("hints", set.getHints());
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193 field.setAttribute("type", set.getType());
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194 theme.appendChild(field);
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195 }
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196 themes.appendChild(theme);
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197 }
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198 styles.appendChild(action);
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199 return styles;
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200 }
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201 }
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202 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org