gvsig-gazetteer / org.gvsig.gazetteer / trunk / org.gvsig.gazetteer / org.gvsig.gazetteer.lib / src / main / java / org / gvsig / gazetteer / wfsg / parsers / WfsgFeatureParser.java @ 103
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1 | 29 | jldominguez | |
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2 | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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3 | *
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4 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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19 | *
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20 | * For more information, contact:
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21 | *
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22 | * Generalitat Valenciana
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23 | * Conselleria d'Infraestructures i Transport
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24 | * Av. Blasco Ib??ez, 50
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25 | * 46010 VALENCIA
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26 | * SPAIN
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27 | *
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28 | * +34 963862235
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29 | * gvsig@gva.es
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30 | * www.gvsig.gva.es
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31 | *
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32 | * or
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33 | *
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34 | * IVER T.I. S.A
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35 | * Salamanca 50
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36 | * 46005 Valencia
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37 | * Spain
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38 | *
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39 | * +34 963163400
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40 | * dac@iver.es
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41 | */
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42 | package org.gvsig.gazetteer.wfsg.parsers; |
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43 | import java.awt.geom.Point2D; |
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44 | |||
45 | import org.gvsig.catalog.metadataxml.XMLNode; |
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46 | import org.gvsig.catalog.metadataxml.XMLTree; |
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47 | 103 | dmartinezizquierdo | import org.gvsig.fmap.geom.GeometryLocator; |
48 | import org.gvsig.fmap.geom.GeometryManager; |
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49 | import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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50 | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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51 | import org.gvsig.fmap.geom.primitive.Point; |
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52 | import org.gvsig.gazetteer.idec.parsers.IdecFeatureParser; |
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53 | 29 | jldominguez | import org.gvsig.gazetteer.querys.Feature; |
54 | 103 | dmartinezizquierdo | import org.slf4j.Logger; |
55 | import org.slf4j.LoggerFactory; |
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56 | 29 | jldominguez | |
57 | |||
58 | /**
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59 | * This class is used to parse the getFeature request
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60 | 103 | dmartinezizquierdo | *
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61 | *
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62 | 29 | jldominguez | * @author Jorge Piera Llodra (piera_jor@gva.es)
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63 | */
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64 | public class WfsgFeatureParser { |
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65 | 103 | dmartinezizquierdo | private static final Logger logger = |
66 | LoggerFactory.getLogger(WfsgFeatureParser.class); |
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67 | 29 | jldominguez | private String geomType = null; |
68 | private String namespace = null; |
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69 | private static final String POSITION_NODE = "position->gml:Point->gml:coordinates"; |
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70 | private static final String GEOGRAPHICIDENTIFIER_NODE = "geographicIdentifier"; |
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71 | private static final String FEATUREMEMBER = "gml:featureMember"; |
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72 | |||
73 | /**
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74 | * It parses the answer
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75 | 103 | dmartinezizquierdo | *
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76 | *
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77 | 29 | jldominguez | * @return Array of features
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78 | * @param node XML tree that contains the getFeature Answer
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79 | * @param featureType FEature selected in the thesaurus list
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80 | * @param attribute Attribute to do the search
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81 | */
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82 | 103 | dmartinezizquierdo | public Feature[] parse(XMLNode node) { |
83 | 29 | jldominguez | XMLNode[] nodeFeatures = XMLTree.searchMultipleNode(node,FEATUREMEMBER);
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84 | 103 | dmartinezizquierdo | namespace = "";
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85 | 29 | jldominguez | |
86 | if ((nodeFeatures != null) && (nodeFeatures.length > 0)){ |
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87 | if (nodeFeatures[0].getSubnodes().length > 0){ |
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88 | String nodeName = nodeFeatures[0].getSubnodes()[0].getName(); |
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89 | if (nodeName.split(":").length == 2){ |
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90 | namespace = nodeName.split(":")[0] + ":"; |
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91 | 103 | dmartinezizquierdo | } |
92 | 29 | jldominguez | return parseWFS(nodeFeatures,nodeName);
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93 | 103 | dmartinezizquierdo | } |
94 | } |
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95 | 29 | jldominguez | return null; |
96 | 103 | dmartinezizquierdo | } |
97 | 29 | jldominguez | |
98 | /**
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99 | * It parses the a WFS answer
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100 | 103 | dmartinezizquierdo | *
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101 | *
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102 | 29 | jldominguez | * @return Array of features
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103 | * @param nodeFeatures XML tree that contains the Features
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104 | * @param featureType FEature selected in the thesaurus list
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105 | * @param attribute Attribute to do the search
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106 | * @param geomField Field that contains the geometry
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107 | */
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108 | 103 | dmartinezizquierdo | public Feature[] parseWFS(XMLNode[] nodeFeatures, String featureType) { |
109 | 29 | jldominguez | Feature[] features = new Feature[nodeFeatures.length]; |
110 | |||
111 | |||
112 | for (int i=0 ; i<nodeFeatures.length ; i++){ |
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113 | XMLNode nodeName = XMLTree.searchNode(nodeFeatures[i],featureType + "->" + GEOGRAPHICIDENTIFIER_NODE);
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114 | 103 | dmartinezizquierdo | String name = ""; |
115 | 29 | jldominguez | |
116 | if (nodeName != null){ |
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117 | if ((nodeName.getText() != null) && (!(nodeName.getText().equals("")))){ |
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118 | name = nodeName.getText(); |
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119 | } else if ((nodeName.getCdata() != null) && (!(nodeName.getCdata().equals("")))){ |
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120 | 103 | dmartinezizquierdo | name = nodeName.getCdata(); |
121 | } |
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122 | 29 | jldominguez | } |
123 | |||
124 | String id = XMLTree.searchNodeAtribute(nodeFeatures[i],featureType,"fid"); |
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125 | String description = name;
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126 | 103 | dmartinezizquierdo | Point point = getCoordinates(XMLTree.searchNodeValue(nodeFeatures[i],
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127 | 29 | jldominguez | featureType + "->" + POSITION_NODE));
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128 | |||
129 | features[i] = new Feature(id,name,description,point);
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130 | } |
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131 | return features;
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132 | 103 | dmartinezizquierdo | } |
133 | 29 | jldominguez | |
134 | /**
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135 | * It returns a pair of coordinates of the Feature
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136 | 103 | dmartinezizquierdo | * @return
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137 | 29 | jldominguez | * @param sCoordinates String that contains the coordinates
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138 | */
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139 | 103 | dmartinezizquierdo | private Point getCoordinates(String sCoordinates) { |
140 | GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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141 | 29 | jldominguez | if (sCoordinates != null){ |
142 | double x = Double.parseDouble(sCoordinates.split(",")[0]); |
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143 | double y = Double.parseDouble(sCoordinates.split(",")[1]); |
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144 | 103 | dmartinezizquierdo | Point point =null; |
145 | try {
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146 | point = geomManager.createPoint(x, y, SUBTYPES.GEOM2D); |
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147 | } catch (CreateGeometryException | NumberFormatException e) { |
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148 | StringBuilder builder = new StringBuilder(); |
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149 | builder.append("Can't create point: (");
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150 | builder.append(x); |
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151 | builder.append(",");
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152 | builder.append(y); |
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153 | builder.append(")");
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154 | logger.warn(builder.toString()); |
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155 | } |
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156 | return point;
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157 | }return null; |
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158 | } |
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159 | 29 | jldominguez | |
160 | |||
161 | |||
162 | } |