Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/server/CollectionItemAttributeServiceImpl.java @ 5738:54077c9c9305

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Backend: Fix Stack overflow.
author Sascha L. Teichmann <teichmann@intevation.de>
date Tue, 16 Apr 2013 18:55:52 +0200
parents b296d435fc69
children
rev   line source
1285
0f3b19df1880 Added new service and model for collection item attributes.
Raimund Renkert <raimund.renkert@intevation.de>
parents:
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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 * @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 private static final Logger logger =
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36 Logger.getLogger(CollectionItemAttributeServiceImpl.class);
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37
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38
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39 public static final String XPATH_RESULT = "/art:result/text()";
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40
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41 public static final String OPERATION_FAILURE = "FAILED";
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42
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43 public static final String ERROR_NO_STYLES_FOUND =
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44 "error_no_theme_styles_found";
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45
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46
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47 public CollectionItemAttribute getCollectionItemAttribute(
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48 Collection collection,
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49 String artifact,
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50 String locale)
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51 throws ServerException
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52 {
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53 logger.info(
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54 "CollectionItemAttributeServiceImpl.getCollectionItemAttribute");
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55
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56 String url = getServletContext().getInitParameter("server-url");
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57
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58 Document requestDoc = XMLUtils.newDocument();
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59
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60 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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61 requestDoc,
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62 ArtifactNamespaceContext.NAMESPACE_URI,
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63 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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64
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65 Element action = ec.create("action");
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66
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67 Element type = ec.create("type");
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68 ec.addAttr(type, "name", "getitemattribute", false);
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69
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70 Element art = ec.create("artifact");
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71 ec.addAttr(art, "uuid", artifact, false);
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72
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73 type.appendChild(art);
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74 action.appendChild(type);
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75 requestDoc.appendChild (action);
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76
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77 try {
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78 HttpClient client = new HttpClientImpl(url, locale);
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79 Document res = (Document) client.doCollectionAction(
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80 requestDoc,
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81 collection.identifier(),
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82 new DocumentResponseHandler());
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83 return readXML (res, artifact);
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84 }
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85 catch (ConnectionException ce) {
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86 logger.error(ce, ce);
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87 }
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88
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89 throw new ServerException(ERROR_NO_STYLES_FOUND);
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90 }
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91
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92
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93 public void setCollectionItemAttribute(
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94 Collection collection,
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95 String artifact,
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96 String locale,
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97 CollectionItemAttribute attributes)
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98 throws ServerException
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99 {
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100 logger.info(
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101 "CollectionItemAttributeServiceImpl.setCollectionItemAttribute");
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102
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103 String url = getServletContext().getInitParameter("server-url");
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104
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105 Document doc = writeXML(attributes, artifact);
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106
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107 try {
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108 HttpClient client = new HttpClientImpl(url, locale);
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109 Document res = (Document) client.doCollectionAction(
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110 doc,
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111 collection.identifier(),
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112 new DocumentResponseHandler());
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113
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114 return;
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115 }
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116 catch (ConnectionException ce) {
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117 logger.error(ce, ce);
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118 throw new ServerException(ce.getLocalizedMessage());
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119 }
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120 }
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121
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122 protected CollectionItemAttribute readXML(Document doc, String artifact)
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123 throws ServerException
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124 {
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125 CollectionItemAttribute cia = new CollectionItemAttribute();
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126 cia.setArtifact(artifact);
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127
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128 Element root = doc.getDocumentElement();
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129 NodeList themes = root.getElementsByTagName("art:themes");
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130
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131 if (themes == null || themes.getLength() == 0) {
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132 throw new ServerException(ERROR_NO_STYLES_FOUND);
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133 }
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134
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135 Element e = (Element) themes.item(0);
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136 NodeList items = e.getElementsByTagName("theme");
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137
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138 for (int i = 0; i < items.getLength(); i++) {
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139 Style s = StyleHelper.getStyle ((Element) items.item(i));
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140 if(s == null) {
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141 throw new ServerException(ERROR_NO_STYLES_FOUND);
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142 }
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143 else {
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144 cia.appendStyle(s);
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145 }
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146 }
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147
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148 return cia;
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149 }
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150
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151
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152 protected Document writeXML (
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153 CollectionItemAttribute attributes,
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154 String artifact)
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155 {
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156 Document styles = XMLUtils.newDocument();
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157
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158 XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
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159 styles,
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160 ArtifactNamespaceContext.NAMESPACE_URI,
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161 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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162 Element action = ec.create("action");
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163 Element type = ec.create("type");
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164 type.setAttribute("name", "setitemattribute");
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165 Element art = ec.create("artifact");
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166 art.setAttribute("uuid", artifact);
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167 Element attr = ec.create("attribute");
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168 Element themes = ec.create("themes");
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169 action.appendChild(type);
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170 type.appendChild(art);
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171 art.appendChild(attr);
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172 attr.appendChild(themes);
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173
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174 XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator(
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175 styles,
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176 "",
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177 "");
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178
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179 for (int i = 0; i < attributes.getNumStyles(); i++) {
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180 Style s = attributes.getStyle(i);
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181 Element theme = creator.create("theme");
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182 theme.setAttribute("name", s.getName());
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183 theme.setAttribute("facet", s.getFacet());
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b18b32269a3f Set the correct index when saving changed attributes.
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184 theme.setAttribute("index", String.valueOf(s.getIndex()));
1292
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185 for (int j = 0; j < s.getNumSettings(); j++) {
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186 StyleSetting set = s.getSetting(j);
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187 Element field = creator.create("field");
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188 field.setAttribute("name", set.getName());
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189 field.setAttribute("display", set.getDisplayName());
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190 field.setAttribute("default", set.getDefaultValue());
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191 field.setAttribute("hints", set.getHints());
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192 field.setAttribute("type", set.getType());
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7a94d5e7fc3d Write the "hidden" attribute of a style into the collection's attribute when using the theme editor.
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parents: 2908
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193 field.setAttribute("hidden", String.valueOf(set.isHidden()));
1292
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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 }
1285
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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