Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/collections/AttributeParser.java @ 5863:4897a58c8746

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River artifacts: Added new copyright headers.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:40:59 +0200
parents 5aa05a7a34b7
children af13ceeba52a
rev   line source
5863
4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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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.collections;
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11 import java.util.List;
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12 import java.util.Map;
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13
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14 import javax.xml.xpath.XPathConstants;
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15
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16 import org.apache.log4j.Logger;
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17
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18 import org.w3c.dom.Document;
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19 import org.w3c.dom.Element;
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20 import org.w3c.dom.Node;
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21 import org.w3c.dom.NodeList;
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22
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23 import org.dive4elements.artifacts.ArtifactNamespaceContext;
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24
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25 import org.dive4elements.artifactdatabase.state.DefaultOutput;
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26 import org.dive4elements.artifactdatabase.state.Facet;
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27 import org.dive4elements.artifactdatabase.state.Output;
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28 import org.dive4elements.artifactdatabase.state.Settings;
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29
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30 import org.dive4elements.artifacts.common.utils.XMLUtils;
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31
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32 import org.dive4elements.river.artifacts.model.ManagedDomFacet;
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33 import org.dive4elements.river.exports.ChartSettings;
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34
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35 /**
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36 * Access parts of the Attribute parts of a FLYSCollections description
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37 * document.
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38 */
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39 public class AttributeParser {
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40
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41 /** Constant XPath that points to the outputmodes of an artifact. */
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42 public static final String XPATH_ARTIFACT_OUTPUTMODES =
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43 "/art:attribute/art:outputs/art:output";
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44
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45
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46 private static Logger logger = Logger.getLogger(AttributeParser.class);
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47
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48
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49 protected Document attributeDocument;
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50
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51 protected CollectionAttribute attribute;
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52
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53
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54 public AttributeParser(Document attributeDocument) {
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55 this.attributeDocument = attributeDocument;
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56 }
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57
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58
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59 public void parse() {
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60 logger.debug("AttributeParser.parse");
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61
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62 attribute = new CollectionAttribute();
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63
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64 NodeList outs = (NodeList) XMLUtils.xpath(
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65 attributeDocument,
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66 XPATH_ARTIFACT_OUTPUTMODES,
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67 XPathConstants.NODESET,
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68 ArtifactNamespaceContext.INSTANCE);
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69
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70 int num = outs != null ? outs.getLength() : 0;
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71
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72 logger.debug("Attribute has " + num + " outputs.");
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73
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74 for (int i = 0; i < num; i++) {
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75 Node out = outs.item(i);
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76
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77 parseOutput(out);
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78 }
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79 }
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81
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82 public CollectionAttribute getCollectionAttribute() {
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83 if (attribute == null) {
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84 parse();
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85 }
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86
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87 return attribute;
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88 }
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89
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91 public Document getAttributeDocument() {
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92 return attributeDocument;
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93 }
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94
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95
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96 public Map<String, Output> getOuts() {
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97 return attribute.getOutputs();
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98 }
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101 /**
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102 * Access all facets.
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103 * @return list of all facets.
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104 */
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105 public List<Facet> getFacets() {
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106 return attribute.getFacets();
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107 }
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108
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109
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110 protected void parseOutput(Node out) {
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111 String name = ((Element)out).getAttribute("name");
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112
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113 if (name.length() == 0) {
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114 logger.warn("No Output name specified. Cancel parsing!");
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115 return;
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116 }
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117
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118 Output o = attribute.getOutput(name);
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119
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120 if (o == null) {
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121 logger.debug("Create new output: " + name);
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122
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123 o = new DefaultOutput(name, null, null);
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124 attribute.addOutput(name, o);
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125 }
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126
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parents: 1976
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127 parseSettings(out, name);
1976
0b466bd4ab24 Introduced a CollectionAttribute class that stores the information provided by the Collection's attribute document.
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parents: 1779
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128 parseItems(out, name);
1779
2fe270661b20 Let Output and Attribute Parsers collect Facets during processing.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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129 }
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130
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131 private static final Node getChild(Element element, String name) {
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132 NodeList children = element.getChildNodes();
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133 for (int i = 0, N = children.getLength(); i < N; ++i) {
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134 Node child = children.item(i);
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135 if (child.getNodeType() == Node.ELEMENT_NODE
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136 && child.getLocalName().equals(name)) {
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137 return child;
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138 }
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139 }
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140 return null;
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141 }
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142
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2fe270661b20 Let Output and Attribute Parsers collect Facets during processing.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 1624
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143
1994
3e703d134bbe Parse the Settings of each Output during Collection's describe() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1976
diff changeset
144 protected void parseSettings(Node out, String outname) {
3191
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145 Node settingsNode = getChild((Element)out, "settings");
1994
3e703d134bbe Parse the Settings of each Output during Collection's describe() operation.
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parents: 1976
diff changeset
146
3e703d134bbe Parse the Settings of each Output during Collection's describe() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1976
diff changeset
147 if (settingsNode == null) {
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1976
diff changeset
148 logger.debug("No Settings found for Output '" + outname + "'");
3e703d134bbe Parse the Settings of each Output during Collection's describe() operation.
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parents: 1976
diff changeset
149 return;
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parents: 1976
diff changeset
150 }
3e703d134bbe Parse the Settings of each Output during Collection's describe() operation.
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parents: 1976
diff changeset
151
3e703d134bbe Parse the Settings of each Output during Collection's describe() operation.
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parents: 1976
diff changeset
152 Settings settings = ChartSettings.parse(settingsNode);
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parents: 1976
diff changeset
153 attribute.setSettings(outname, settings);
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parents: 1976
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154 }
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parents: 1976
diff changeset
155
3e703d134bbe Parse the Settings of each Output during Collection's describe() operation.
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parents: 1976
diff changeset
156
346
16161de47662 The Attributes of a collection are written into its DESCRIBE now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
157 protected void parseItems(Node out, String outname) {
3191
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2779
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158 String uri = ArtifactNamespaceContext.NAMESPACE_URI;
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parents: 2779
diff changeset
159 Element element = (Element)out;
346
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parents:
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160
3191
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parents: 2779
diff changeset
161 NodeList themes = element.getElementsByTagNameNS(uri, "facet");
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diff changeset
162
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diff changeset
163 int num = themes.getLength();
346
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parents:
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164
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parents:
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165 logger.debug("Output has " + num + " themes.");
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parents:
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166
694
68c6c75a6f7c Add index and description of facets to collections describe document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 638
diff changeset
167 for (int i = 0; i < num; i++) {
68c6c75a6f7c Add index and description of facets to collections describe document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 638
diff changeset
168 Element theme = (Element) themes.item(i);
3191
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2779
diff changeset
169 if (theme.getParentNode() == out) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2779
diff changeset
170 attribute.addFacet(outname, new ManagedDomFacet(theme));
ef0db530c341 Removed some expensive XPath usage.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2779
diff changeset
171 }
346
16161de47662 The Attributes of a collection are written into its DESCRIBE now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
172 }
16161de47662 The Attributes of a collection are written into its DESCRIBE now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
173 }
16161de47662 The Attributes of a collection are written into its DESCRIBE now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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174 }
16161de47662 The Attributes of a collection are written into its DESCRIBE now.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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175 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org