Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/collections/AttributeParser.java @ 5645:696d710470f5

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flys/issue1077: Show loads as step line, therefore transform data in SedimentLoadFacet to stretch as in the measurement stations bounds. Deal with this new kind of data in the Generator.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 10 Apr 2013 09:35:07 +0200
parents ef0db530c341
children
rev   line source
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16161de47662 The Attributes of a collection are written into its DESCRIBE now.
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1 package de.intevation.flys.collections;
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2
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3 import java.util.List;
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4 import java.util.Map;
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5
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6 import javax.xml.xpath.XPathConstants;
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7
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8 import org.apache.log4j.Logger;
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9
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10 import org.w3c.dom.Document;
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11 import org.w3c.dom.Element;
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12 import org.w3c.dom.Node;
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13 import org.w3c.dom.NodeList;
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14
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15 import de.intevation.artifacts.ArtifactNamespaceContext;
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16
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17 import de.intevation.artifactdatabase.state.DefaultOutput;
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18 import de.intevation.artifactdatabase.state.Facet;
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19 import de.intevation.artifactdatabase.state.Output;
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20 import de.intevation.artifactdatabase.state.Settings;
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21
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22 import de.intevation.artifacts.common.utils.XMLUtils;
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23
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59ae2a823e73 Use the Facet.toXML() method to write facet elements into the DESCRIBE document of the Collection.
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24 import de.intevation.flys.artifacts.model.ManagedDomFacet;
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25 import de.intevation.flys.exports.ChartSettings;
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26
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27 /**
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28 * Access parts of the Attribute parts of a FLYSCollections description
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29 * document.
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30 */
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31 public class AttributeParser {
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32
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33 /** Constant XPath that points to the outputmodes of an artifact. */
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34 public static final String XPATH_ARTIFACT_OUTPUTMODES =
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35 "/art:attribute/art:outputs/art:output";
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36
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38 private static Logger logger = Logger.getLogger(AttributeParser.class);
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39
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40
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41 protected Document attributeDocument;
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42
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43 protected CollectionAttribute attribute;
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46 public AttributeParser(Document attributeDocument) {
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47 this.attributeDocument = attributeDocument;
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48 }
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50
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51 public void parse() {
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52 logger.debug("AttributeParser.parse");
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53
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54 attribute = new CollectionAttribute();
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55
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56 NodeList outs = (NodeList) XMLUtils.xpath(
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57 attributeDocument,
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58 XPATH_ARTIFACT_OUTPUTMODES,
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59 XPathConstants.NODESET,
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60 ArtifactNamespaceContext.INSTANCE);
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61
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62 int num = outs != null ? outs.getLength() : 0;
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63
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64 logger.debug("Attribute has " + num + " outputs.");
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65
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66 for (int i = 0; i < num; i++) {
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67 Node out = outs.item(i);
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68
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69 parseOutput(out);
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70 }
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71 }
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72
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73
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74 public CollectionAttribute getCollectionAttribute() {
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75 if (attribute == null) {
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76 parse();
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77 }
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78
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79 return attribute;
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80 }
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81
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82
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83 public Document getAttributeDocument() {
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84 return attributeDocument;
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85 }
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86
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87
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88 public Map<String, Output> getOuts() {
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89 return attribute.getOutputs();
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90 }
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91
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93 /**
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94 * Access all facets.
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95 * @return list of all facets.
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96 */
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97 public List<Facet> getFacets() {
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98 return attribute.getFacets();
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99 }
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100
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101
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102 protected void parseOutput(Node out) {
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103 String name = ((Element)out).getAttribute("name");
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104
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105 if (name.length() == 0) {
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106 logger.warn("No Output name specified. Cancel parsing!");
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107 return;
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108 }
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109
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110 Output o = attribute.getOutput(name);
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111
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112 if (o == null) {
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113 logger.debug("Create new output: " + name);
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114
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115 o = new DefaultOutput(name, null, null);
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116 attribute.addOutput(name, o);
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117 }
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118
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119 parseSettings(out, name);
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120 parseItems(out, name);
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121 }
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122
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123 private static final Node getChild(Element element, String name) {
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124 NodeList children = element.getChildNodes();
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125 for (int i = 0, N = children.getLength(); i < N; ++i) {
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126 Node child = children.item(i);
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127 if (child.getNodeType() == Node.ELEMENT_NODE
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128 && child.getLocalName().equals(name)) {
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129 return child;
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130 }
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131 }
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132 return null;
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133 }
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134
1779
2fe270661b20 Let Output and Attribute Parsers collect Facets during processing.
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135
1994
3e703d134bbe Parse the Settings of each Output during Collection's describe() operation.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1976
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136 protected void parseSettings(Node out, String outname) {
3191
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137 Node settingsNode = getChild((Element)out, "settings");
1994
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138
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139 if (settingsNode == null) {
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140 logger.debug("No Settings found for Output '" + outname + "'");
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141 return;
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142 }
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143
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144 Settings settings = ChartSettings.parse(settingsNode);
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145 attribute.setSettings(outname, settings);
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146 }
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147
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148
346
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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149 protected void parseItems(Node out, String outname) {
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150 String uri = ArtifactNamespaceContext.NAMESPACE_URI;
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151 Element element = (Element)out;
346
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152
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153 NodeList themes = element.getElementsByTagNameNS(uri, "facet");
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154
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155 int num = themes.getLength();
346
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parents:
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156
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157 logger.debug("Output has " + num + " themes.");
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parents:
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158
694
68c6c75a6f7c Add index and description of facets to collections describe document.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 638
diff changeset
159 for (int i = 0; i < num; i++) {
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160 Element theme = (Element) themes.item(i);
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161 if (theme.getParentNode() == out) {
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162 attribute.addFacet(outname, new ManagedDomFacet(theme));
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163 }
346
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parents:
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164 }
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parents:
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165 }
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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166 }
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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167 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org