Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/collections/AttributeParser.java @ 3454:98745f308319
fix vol/l/mer.
flys-artifacts/trunk@5120 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Wed, 25 Jul 2012 09:53:24 +0000 |
parents | ef0db530c341 |
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rev | line source |
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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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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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Cosmetics.
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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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Introduced a CollectionAttribute class that stores the information provided by the Collection's attribute document.
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37 |
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38 private static Logger logger = Logger.getLogger(AttributeParser.class); |
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39 |
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parents:
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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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44 |
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parents:
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45 |
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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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49 |
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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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92 |
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Let Output and Attribute Parsers collect Facets during processing.
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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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Replaced another silly "@attribute" XPATH with direct getAttribute() call.
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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 |
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135 |
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136 protected void parseSettings(Node out, String outname) { |
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137 Node settingsNode = getChild((Element)out, "settings"); |
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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 |
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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; |
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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(); |
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156 |
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157 logger.debug("Output has " + num + " themes."); |
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158 |
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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 } |
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164 } |
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165 } |
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166 } |
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167 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |