root / tags / v10_RC2c / applications / appCatalogYNomenclatorClient / src / es / gva / cit / gazetteer / wfsg / parsers / WfsgFeatureParser.java @ 8745
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| 1 | 3566 | jorpiell | |
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| 2 | 3214 | jorpiell | /* 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 es.gva.cit.gazetteer.wfsg.parsers; |
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| 43 | import es.gva.cit.catalogClient.metadataXML.XMLNode; |
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| 44 | import es.gva.cit.catalogClient.metadataXML.XMLTree; |
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| 45 | import es.gva.cit.gazetteer.querys.Feature; |
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| 46 | import es.gva.cit.gazetteer.querys.ThesaurusName; |
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| 47 | 3613 | jorpiell | import java.awt.geom.Point2D; |
| 48 | 3214 | jorpiell | |
| 49 | /**
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| 50 | * This class is used to parse the getFeature request
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| 51 | *
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| 52 | 3566 | jorpiell | *
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| 53 | 3214 | jorpiell | * @author Jorge Piera Llodra (piera_jor@gva.es)
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| 54 | */
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| 55 | public class WfsgFeatureParser { |
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| 56 | 3566 | jorpiell | |
| 57 | /**
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| 58 | *
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| 59 | *
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| 60 | */
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| 61 | 3214 | jorpiell | private String geomType = null; |
| 62 | 3566 | jorpiell | |
| 63 | /**
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| 64 | * It parses the answer
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| 65 | *
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| 66 | *
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| 67 | * @return Array of features
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| 68 | * @param node XML tree that contains the getFeature Answer
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| 69 | * @param thesaurus FEature selected in the thesaurus list
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| 70 | * @param attribute Attribute to do the search
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| 71 | */
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| 72 | public Feature[] parse(XMLNode node, ThesaurusName thesaurus, String attribute) { |
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| 73 | 3214 | jorpiell | XMLNode[] nodeFeatures = XMLTree.searchMultipleNode(node,"gml:featureMember"); |
| 74 | 3311 | jorpiell | |
| 75 | 3587 | jorpiell | String prefix = thesaurus.getName().split(":")[0]; |
| 76 | 8604 | jorpiell | String geomField = getGeomField(prefix,thesaurus);
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| 77 | |||
| 78 | 3408 | jorpiell | if ((node.getName().equals("ResultCollection")) || |
| 79 | 8604 | jorpiell | (node.getName().equals("feature_collection"))){
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| 80 | 3566 | jorpiell | return parseWFS(nodeFeatures,thesaurus,"geographicIdentifier",geomField); |
| 81 | 3311 | jorpiell | }else{
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| 82 | 3566 | jorpiell | return parseWFS(nodeFeatures,thesaurus,prefix + ":" + attribute,geomField); |
| 83 | 3311 | jorpiell | } |
| 84 | 3566 | jorpiell | } |
| 85 | |||
| 86 | /**
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| 87 | * It parses the a WFS answer
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| 88 | *
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| 89 | *
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| 90 | * @return Array of features
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| 91 | * @param nodeFeatures XML tree that contains the Features
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| 92 | * @param thesaurusName FEature selected in the thesaurus list
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| 93 | * @param attribute Attribute to do the search
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| 94 | * @param geomField Field that contains the geometry
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| 95 | */
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| 96 | public Feature[] parseWFS(XMLNode[] nodeFeatures, ThesaurusName thesaurusName, String attribute, String geomField) { |
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| 97 | 3311 | jorpiell | Feature[] features = new Feature[nodeFeatures.length]; |
| 98 | 8604 | jorpiell | |
| 99 | 3214 | jorpiell | for (int i=0 ; i<nodeFeatures.length ; i++){ |
| 100 | 8604 | jorpiell | String sThesaurusName = thesaurusName.getName();
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| 101 | String id = XMLTree.searchNodeAtribute(nodeFeatures[i],sThesaurusName,"fid"); |
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| 102 | Point2D point = null; |
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| 103 | |||
| 104 | XMLNode nodeName = XMLTree.searchNode(nodeFeatures[i],sThesaurusName + "->" + attribute);
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| 105 | if (nodeName == null){ |
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| 106 | sThesaurusName = "ms:" + sThesaurusName;
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| 107 | nodeName = XMLTree.searchNode(nodeFeatures[i],sThesaurusName + "->" + "ms:toponimo"); |
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| 108 | geomField = sThesaurusName + "->ms:msGeometry->gml:Point->gml:coordinates";
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| 109 | point = getCoordinates(XMLTree.searchNodeValue(nodeFeatures[i], |
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| 110 | geomField)); |
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| 111 | }else{
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| 112 | point = getCoordinates(XMLTree.searchNodeValue(nodeFeatures[i], |
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| 113 | geomField)); |
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| 114 | } |
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| 115 | 3367 | jorpiell | String name = ""; |
| 116 | 3408 | jorpiell | |
| 117 | 3367 | jorpiell | if (nodeName != null){ |
| 118 | if ((nodeName.getText() != null) && (!(nodeName.getText().equals("")))){ |
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| 119 | name = nodeName.getText(); |
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| 120 | } else if ((nodeName.getCdata() != null) && (!(nodeName.getCdata().equals("")))){ |
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| 121 | name = nodeName.getCdata(); |
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| 122 | } |
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| 123 | } |
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| 124 | 8604 | jorpiell | String description = name;
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| 125 | 3214 | jorpiell | |
| 126 | features[i] = new Feature(id,name,description,point);
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| 127 | } |
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| 128 | |||
| 129 | return features;
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| 130 | 3566 | jorpiell | } |
| 131 | //cv300:entity:layer:level:elevation:color:text:clave:the_geom->gml:MultiLineString->gml:lineStringMember->gml:LineString->gml:coordinates
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| 132 | |||
| 133 | /**
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| 134 | * If returns the Geom route of the XML tree
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| 135 | *
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| 136 | *
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| 137 | * @return
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| 138 | * @param prefix Typename
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| 139 | * @param thesaurus Feature selected in the thesaurus list
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| 140 | */
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| 141 | private String getGeomField(String prefix, ThesaurusName thesaurus) { |
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| 142 | 3587 | jorpiell | if ((thesaurus.getFields() == null) || (thesaurus.getFields().length == 0)){ |
| 143 | 3311 | jorpiell | geomType = "Point";
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| 144 | 3566 | jorpiell | return thesaurus.getName() + "->" + "position->gml:Point->gml:coordinates"; |
| 145 | 3311 | jorpiell | } |
| 146 | |||
| 147 | 3566 | jorpiell | for (int i=0 ; i<thesaurus.getFields().length ; i++){ |
| 148 | if (thesaurus.getFields()[i].getType().equals("gml:MultiLineStringPropertyType")){ |
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| 149 | prefix = thesaurus.getName() + "->" + prefix + ":" + thesaurus.getFields()[i].getName(); |
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| 150 | 3214 | jorpiell | geomType = "MultiLine";
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| 151 | return prefix +
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| 152 | "->gml:MultiLineString->gml:lineStringMember->gml:LineString->" +
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| 153 | "gml:coordinates";
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| 154 | } |
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| 155 | |||
| 156 | 3566 | jorpiell | if (thesaurus.getFields()[i].getType().equals("gml:MultiPolygonPropertyType")){ |
| 157 | prefix = thesaurus.getName() + "->" + prefix + ":" + thesaurus.getFields()[i].getName(); |
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| 158 | 3214 | jorpiell | geomType = "MultiPolygon";
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| 159 | return prefix +
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| 160 | "->gml:MultiPolygon->gml:polygonMember->gml:Polygon->gml:outerBoundaryIs->" +
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| 161 | "gml:LinearRing->gml:coordinates";
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| 162 | } |
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| 163 | |||
| 164 | 3566 | jorpiell | if (thesaurus.getFields()[i].getType().equals("gml:PointPropertyType")){ |
| 165 | prefix = thesaurus.getName() + "->" + prefix + ":" + thesaurus.getFields()[i].getName(); |
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| 166 | 3214 | jorpiell | geomType = "Point";
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| 167 | return prefix +
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| 168 | "->gml:Point->gml:coordinates";
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| 169 | 8604 | jorpiell | } |
| 170 | |||
| 171 | if (thesaurus.getFields()[i].getType().equals("gml:GeometryPropertyType")){ |
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| 172 | prefix = thesaurus.getName() + "->" + prefix + ":" + thesaurus.getFields()[i].getName(); |
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| 173 | geomType = "Point";
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| 174 | return prefix +
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| 175 | "->gml:Point->gml:coordinates";
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| 176 | } |
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| 177 | 3587 | jorpiell | } |
| 178 | return ""; |
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| 179 | 3613 | jorpiell | } |
| 180 | 3566 | jorpiell | |
| 181 | /**
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| 182 | * It returns a pair of coordinates of the Feature
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| 183 | *
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| 184 | *
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| 185 | * @return
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| 186 | * @param sCoordinates String that contains the coordinates
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| 187 | */
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| 188 | private Point2D getCoordinates(String sCoordinates) { |
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| 189 | 3214 | jorpiell | if (geomType.equals("MultiLine")){ |
| 190 | return getCoordinatesMultiline(sCoordinates);
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| 191 | } |
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| 192 | if (geomType.equals("MultiPolygon")){ |
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| 193 | return getCoordinatesMultiPolygon(sCoordinates);
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| 194 | } |
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| 195 | if (geomType.equals("Point")){ |
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| 196 | return getCoordinatesPoint(sCoordinates);
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| 197 | } |
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| 198 | return null; |
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| 199 | 3566 | jorpiell | } |
| 200 | |||
| 201 | /**
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| 202 | * It returns a pair of coordinates from a Multiline string
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| 203 | *
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| 204 | *
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| 205 | * @return
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| 206 | * @param sCoordinates String
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| 207 | */
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| 208 | private java.awt.geom.Point2D.Double getCoordinatesMultiline(String sCoordinates) { |
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| 209 | 3214 | jorpiell | return getAverage(sCoordinates.split(" ")); |
| 210 | 3566 | jorpiell | } |
| 211 | |||
| 212 | /**
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| 213 | * It returns a pair of coordinates from a MultiPolygon string
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| 214 | *
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| 215 | *
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| 216 | * @return
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| 217 | * @param sCoordinates String
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| 218 | */
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| 219 | private java.awt.geom.Point2D.Double getCoordinatesMultiPolygon(String sCoordinates) { |
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| 220 | 3214 | jorpiell | return getAverage(sCoordinates.split(" ")); |
| 221 | 3566 | jorpiell | } |
| 222 | |||
| 223 | /**
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| 224 | * It returns a pair of coordinates from a Point
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| 225 | *
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| 226 | *
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| 227 | * @return
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| 228 | * @param sCoordinates String
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| 229 | */
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| 230 | private java.awt.geom.Point2D.Double getCoordinatesPoint(String sCoordinates) { |
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| 231 | 3214 | jorpiell | return getAverage(sCoordinates.split(" ")); |
| 232 | 3566 | jorpiell | } |
| 233 | |||
| 234 | /**
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| 235 | * It returns the average of a set of coordinates
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| 236 | *
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| 237 | *
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| 238 | * @return Average
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| 239 | * @param sCoordinates Coordinates: X,Y
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| 240 | */
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| 241 | private java.awt.geom.Point2D.Double getAverage(String[] sCoordinates) { |
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| 242 | 3613 | jorpiell | double x = 0.0; |
| 243 | double y = 0.0; |
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| 244 | 3214 | jorpiell | for (int i=0 ; i<sCoordinates.length ; i++){ |
| 245 | x = x + Double.parseDouble(sCoordinates[i].split(",")[0]); |
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| 246 | y = y + Double.parseDouble(sCoordinates[i].split(",")[1]); |
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| 247 | } |
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| 248 | x = x / sCoordinates.length; |
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| 249 | y = y / sCoordinates.length; |
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| 250 | return new Point2D.Double(x,y); |
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| 251 | 3566 | jorpiell | } |
| 252 | } |