root / branches / v10 / libraries / libRemoteServices / src / org / gvsig / remoteClient / gml / utils / GMLUtilsParser.java @ 12215
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| 1 | 6722 | jorpiell | package org.gvsig.remoteClient.gml.utils; |
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| 2 | |||
| 3 | import java.awt.geom.Point2D; |
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| 4 | import java.awt.geom.Rectangle2D; |
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| 5 | import java.io.IOException; |
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| 6 | |||
| 7 | import org.gvsig.remoteClient.gml.GMLTags; |
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| 8 | import org.gvsig.remoteClient.gml.GMLFeaturesParser.Extent; |
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| 9 | 9917 | jorpiell | import org.gvsig.remoteClient.gml.exceptions.BaseException; |
| 10 | import org.gvsig.remoteClient.gml.exceptions.GMLFileReadException; |
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| 11 | import org.gvsig.remoteClient.gml.exceptions.GMLNoGeometryException; |
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| 12 | import org.gvsig.remoteClient.gml.exceptions.GMLParserException; |
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| 13 | 6722 | jorpiell | import org.gvsig.remoteClient.gml.factories.IGeometriesFactory; |
| 14 | import org.gvsig.remoteClient.gml.schemas.XMLSchemaParser; |
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| 15 | import org.kxml2.io.KXmlParser; |
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| 16 | import org.xmlpull.v1.XmlPullParserException; |
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| 17 | |||
| 18 | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 19 | *
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| 20 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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| 21 | *
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| 22 | * This program is free software; you can redistribute it and/or
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| 23 | * modify it under the terms of the GNU General Public License
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| 24 | * as published by the Free Software Foundation; either version 2
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| 25 | * of the License, or (at your option) any later version.
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| 26 | *
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| 27 | * This program is distributed in the hope that it will be useful,
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| 28 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 29 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 30 | * GNU General Public License for more details.
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| 31 | *
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| 32 | * You should have received a copy of the GNU General Public License
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| 33 | * along with this program; if not, write to the Free Software
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| 34 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 35 | *
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| 36 | * For more information, contact:
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| 37 | *
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| 38 | * Generalitat Valenciana
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| 39 | * Conselleria d'Infraestructures i Transport
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| 40 | * Av. Blasco Ib??ez, 50
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| 41 | * 46010 VALENCIA
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| 42 | * SPAIN
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| 43 | *
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| 44 | * +34 963862235
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| 45 | * gvsig@gva.es
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| 46 | * www.gvsig.gva.es
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| 47 | *
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| 48 | * or
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| 49 | *
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| 50 | * IVER T.I. S.A
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| 51 | * Salamanca 50
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| 52 | * 46005 Valencia
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| 53 | * Spain
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| 54 | *
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| 55 | * +34 963163400
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| 56 | * dac@iver.es
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| 57 | */
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| 58 | /* CVS MESSAGES:
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| 59 | *
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| 60 | * $Id$
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| 61 | * $Log$
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| 62 | 12215 | jorpiell | * Revision 1.1.2.3 2007-06-19 09:44:46 jorpiell
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| 63 | * It always uses geotools to parse the geometries
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| 64 | *
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| 65 | * Revision 1.1.2.2 2007/02/23 07:57:27 jorpiell
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| 66 | 10483 | jorpiell | * Capacidad de parsear el BBOX que tenga alg?n problema
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| 67 | *
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| 68 | * Revision 1.1.2.1 2007/01/25 16:12:59 jorpiell
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| 69 | 9917 | jorpiell | * Se han sustituido las clases por las que hay en el nuevo driver de GML.
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| 70 | *
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| 71 | * Revision 1.3 2007/01/15 13:11:00 csanchez
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| 72 | * Sistema de Warnings y Excepciones adaptado a BasicException
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| 73 | *
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| 74 | * Revision 1.2 2006/12/22 11:25:44 csanchez
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| 75 | * Nuevo parser GML 2.x para gml's sin esquema
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| 76 | *
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| 77 | * Revision 1.1 2006/08/10 12:00:49 jorpiell
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| 78 | 6722 | jorpiell | * Primer commit del driver de Gml
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| 79 | *
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| 80 | *
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| 81 | */
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| 82 | /**
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| 83 | * @author Jorge Piera Llodr? (piera_jor@gva.es)
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| 84 | 9917 | jorpiell | * @author Carlos S?nchez Peri??n (sanchez_carper@gva.es)
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| 85 | 6722 | jorpiell | */
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| 86 | public class GMLUtilsParser { |
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| 87 | |||
| 88 | /**
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| 89 | * Parses the boundedBy GML tag
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| 90 | * @throws IOException
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| 91 | * @throws XmlPullParserException
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| 92 | *
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| 93 | */
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| 94 | public static Extent parseBoundedBy(XMLSchemaParser parser) throws XmlPullParserException, IOException { |
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| 95 | int currentTag;
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| 96 | boolean end = false; |
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| 97 | Rectangle2D extent = null; |
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| 98 | String srs = null; |
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| 99 | |||
| 100 | currentTag = parser.getEventType(); |
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| 101 | |||
| 102 | while (!end){
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| 103 | switch(currentTag){
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| 104 | case XMLSchemaParser.START_TAG:
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| 105 | if (parser.getName().compareTo(GMLTags.GML_BOX)==0){ |
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| 106 | for (int i=0 ; i<parser.getAttributeCount() ;i++){ |
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| 107 | if (parser.getAttributeName(i).compareTo(GMLTags.GML_SRS_NAME) == 0){ |
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| 108 | srs = parser.getAttributeValue(i); |
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| 109 | } |
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| 110 | } |
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| 111 | extent = parseBox(parser); |
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| 112 | } |
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| 113 | break;
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| 114 | case XMLSchemaParser.END_TAG:
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| 115 | if (parser.getName().compareTo(GMLTags.GML_BOUNDEDBY) == 0) |
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| 116 | end = true;
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| 117 | break;
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| 118 | case XMLSchemaParser.TEXT:
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| 119 | break;
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| 120 | } |
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| 121 | if (!end){
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| 122 | currentTag = parser.next(); |
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| 123 | } |
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| 124 | } |
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| 125 | return new Extent(extent,srs); |
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| 126 | } |
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| 127 | |||
| 128 | /**
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| 129 | * Parses the box GML tag
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| 130 | * @throws IOException
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| 131 | * @throws XmlPullParserException
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| 132 | *
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| 133 | */
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| 134 | private static Rectangle2D parseBox(XMLSchemaParser parser) throws XmlPullParserException, IOException { |
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| 135 | int currentTag;
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| 136 | boolean end = false; |
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| 137 | Point2D ul = null; |
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| 138 | Point2D br = null; |
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| 139 | Rectangle2D extent = null; |
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| 140 | |||
| 141 | currentTag = parser.getEventType(); |
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| 142 | |||
| 143 | while (!end){
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| 144 | switch(currentTag){
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| 145 | case XMLSchemaParser.START_TAG:
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| 146 | if (parser.getName().compareTo(GMLTags.GML_COORDINATES)==0){ |
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| 147 | extent = parseCoordinates(parser); |
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| 148 | }else if(parser.getName().compareTo(GMLTags.GML_COORD)==0){ |
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| 149 | 9917 | jorpiell | if (ul == null){ |
| 150 | 6722 | jorpiell | ul = parsePoint(parser); |
| 151 | }else{
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| 152 | br = parsePoint(parser); |
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| 153 | } |
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| 154 | } |
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| 155 | break;
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| 156 | case XMLSchemaParser.END_TAG:
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| 157 | if (parser.getName().compareTo(GMLTags.GML_BOX) == 0) |
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| 158 | end = true;
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| 159 | break;
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| 160 | case XMLSchemaParser.TEXT:
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| 161 | break;
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| 162 | } |
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| 163 | if (!end){
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| 164 | currentTag = parser.next(); |
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| 165 | } |
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| 166 | } |
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| 167 | if (extent == null){ |
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| 168 | return new Rectangle2D.Double(ul.getX(),ul.getY(),br.getX(),br.getY()); |
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| 169 | }else{
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| 170 | return extent;
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| 171 | } |
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| 172 | } |
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| 173 | |||
| 174 | /**
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| 175 | * Parses the coordinates GML tag
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| 176 | * @throws IOException
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| 177 | * @throws XmlPullParserException
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| 178 | *
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| 179 | */
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| 180 | private static Rectangle2D parseCoordinates(XMLSchemaParser parser) throws XmlPullParserException, IOException { |
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| 181 | parser.next(); |
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| 182 | |||
| 183 | for (int i=0 ; i<parser.getAttributeCount() ; i++){ |
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| 184 | if (parser.getAttributeName(i).compareTo(GMLTags.GML_COORDINATES_DECIMAL) == 0){ |
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| 185 | |||
| 186 | }else if (parser.getAttributeName(i).compareTo(GMLTags.GML_COORDINATES_CS) == 0){ |
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| 187 | |||
| 188 | }else if (parser.getAttributeName(i).compareTo(GMLTags.GML_COORDINATES_TS) == 0){ |
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| 189 | |||
| 190 | } |
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| 191 | } |
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| 192 | |||
| 193 | 10483 | jorpiell | String[] corners = parser.getText().trim().split(" "); |
| 194 | 6722 | jorpiell | String[] ul = corners[0].split(","); |
| 195 | String[] br = corners[1].split(","); |
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| 196 | |||
| 197 | 10483 | jorpiell | |
| 198 | 6722 | jorpiell | return new Rectangle2D.Double(Double.parseDouble(ul[0]), |
| 199 | Double.parseDouble(ul[1]), |
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| 200 | Double.parseDouble(br[0]), |
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| 201 | 10483 | jorpiell | Double.parseDouble(br[1])); |
| 202 | |||
| 203 | 6722 | jorpiell | } |
| 204 | |||
| 205 | /**
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| 206 | * Parses the point GML tag
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| 207 | * @throws IOException
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| 208 | * @throws XmlPullParserException
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| 209 | *
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| 210 | */
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| 211 | private static Point2D parsePoint(XMLSchemaParser parser) throws XmlPullParserException, IOException { |
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| 212 | int currentTag;
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| 213 | boolean end = false; |
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| 214 | String x = "0"; |
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| 215 | String y = "0"; |
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| 216 | |||
| 217 | currentTag = parser.getEventType(); |
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| 218 | |||
| 219 | while (!end){
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| 220 | switch(currentTag){
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| 221 | case XMLSchemaParser.START_TAG:
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| 222 | if (parser.getName().compareTo(GMLTags.GML_COORDINATES)==0){ |
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| 223 | parseCoordinates(parser); |
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| 224 | 9917 | jorpiell | } |
| 225 | 6722 | jorpiell | if (parser.getName().compareTo(GMLTags.GML_X) == 0){ |
| 226 | 9917 | jorpiell | parser.next(); |
| 227 | 6722 | jorpiell | x = parser.getText(); |
| 228 | }else if (parser.getName().compareTo(GMLTags.GML_Y) == 0){ |
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| 229 | 9917 | jorpiell | parser.next(); |
| 230 | 6722 | jorpiell | y = parser.getText(); |
| 231 | end = true;
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| 232 | 9917 | jorpiell | } |
| 233 | 6722 | jorpiell | break;
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| 234 | 9917 | jorpiell | case XMLSchemaParser.END_TAG:
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| 235 | break;
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| 236 | 6722 | jorpiell | case XMLSchemaParser.TEXT:
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| 237 | break;
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| 238 | } |
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| 239 | if (!end){
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| 240 | currentTag = parser.next(); |
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| 241 | } |
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| 242 | } |
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| 243 | return new Point2D.Double(Double.parseDouble(x),Double.parseDouble(y)); |
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| 244 | } |
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| 245 | |||
| 246 | /**
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| 247 | * Parses a geometry GML tag
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| 248 | * @throws IOException
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| 249 | * @throws XmlPullParserException
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| 250 | *
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| 251 | */
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| 252 | 9917 | jorpiell | public static Object parseGeometry(XMLSchemaParser parser,String gmGeometryTag,IGeometriesFactory factory) throws BaseException{ |
| 253 | 6722 | jorpiell | int currentTag;
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| 254 | boolean end = false; |
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| 255 | |||
| 256 | try{
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| 257 | 9917 | jorpiell | currentTag = parser.getEventType(); |
| 258 | 6722 | jorpiell | while (!end){
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| 259 | switch(currentTag){
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| 260 | case KXmlParser.START_TAG:
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| 261 | 12215 | jorpiell | return factory.createGeometry(getGeometryInGML(parser,parser.getName()));
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| 262 | 6722 | jorpiell | case KXmlParser.END_TAG:
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| 263 | if ((parser.getName().compareTo(gmGeometryTag) == 0)) |
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| 264 | end = true;
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| 265 | break;
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| 266 | case KXmlParser.TEXT:
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| 267 | break;
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| 268 | } |
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| 269 | if (!end){
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| 270 | currentTag = parser.next(); |
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| 271 | } |
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| 272 | } |
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| 273 | }catch (XmlPullParserException e) {
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| 274 | 9917 | jorpiell | // Captured KXML parsing Exception
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| 275 | throw new GMLParserException(e); |
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| 276 | 6722 | jorpiell | } catch (IOException e) { |
| 277 | // TODO Auto-generated catch block
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| 278 | 9917 | jorpiell | throw new GMLFileReadException(e); |
| 279 | 6722 | jorpiell | } |
| 280 | return null; |
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| 281 | } |
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| 282 | |||
| 283 | /**
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| 284 | * Parses the point GML tag
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| 285 | * @throws IOException
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| 286 | * @throws XmlPullParserException
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| 287 | *
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| 288 | */
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| 289 | 9917 | jorpiell | private static Point2D parsePoint2D(XMLSchemaParser parser) throws BaseException{ |
| 290 | 6722 | jorpiell | int currentTag;
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| 291 | boolean end = false; |
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| 292 | |||
| 293 | try{
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| 294 | currentTag = parser.getEventType(); |
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| 295 | while (!end){
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| 296 | switch(currentTag){
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| 297 | case KXmlParser.START_TAG:
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| 298 | if ((parser.getName().compareTo(GMLTags.GML_COORDINATES) == 0)){ |
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| 299 | parser.next(); |
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| 300 | String sCoordinates = parser.getText();
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| 301 | String[] coordinates = sCoordinates.split(","); |
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| 302 | return new Point2D.Double(Double.parseDouble(coordinates[0]), |
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| 303 | Double.parseDouble(coordinates[1])); |
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| 304 | } |
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| 305 | break;
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| 306 | case KXmlParser.END_TAG:
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| 307 | if ((parser.getName().compareTo(GMLTags.GML_POINT) == 0)) |
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| 308 | end = true;
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| 309 | break;
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| 310 | case KXmlParser.TEXT:
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| 311 | break;
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| 312 | } |
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| 313 | if (!end){
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| 314 | currentTag = parser.next(); |
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| 315 | } |
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| 316 | } |
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| 317 | }catch (XmlPullParserException e) {
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| 318 | 9917 | jorpiell | //Captured KXML parsing Exception
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| 319 | throw new GMLParserException(e); |
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| 320 | 6722 | jorpiell | } catch (IOException e) { |
| 321 | // TODO Auto-generated catch block
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| 322 | 9917 | jorpiell | throw new GMLFileReadException(e); |
| 323 | 6722 | jorpiell | } |
| 324 | return null; |
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| 325 | } |
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| 326 | |||
| 327 | /**
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| 328 | * Parses the geometry GML tag
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| 329 | * @return
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| 330 | * The geometry in GML
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| 331 | * @throws IOException
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| 332 | * @throws XmlPullParserException
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| 333 | *
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| 334 | */
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| 335 | 9917 | jorpiell | private static String getGeometryInGML(XMLSchemaParser parser,String endGeometryTag) throws BaseException{ |
| 336 | 6722 | jorpiell | int currentTag;
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| 337 | boolean end = false; |
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| 338 | StringBuffer gmlString = new StringBuffer(); |
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| 339 | |||
| 340 | try{
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| 341 | currentTag = parser.getEventType(); |
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| 342 | while (!end){
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| 343 | switch(currentTag){
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| 344 | case KXmlParser.START_TAG:
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| 345 | 9917 | jorpiell | if (parser.getName().compareTo("geometryMember")==0){ |
| 346 | //Esta etiqueta de gml que nos indica donde empieza y donde acaba un subelemento
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| 347 | //de una geometria compleja, como un multipoligono no la admite el parser de Geotools
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| 348 | //Por tanto la debemos de ignorar
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| 349 | break;
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| 350 | } |
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| 351 | 6722 | jorpiell | gmlString.append("<" + parser.getName());
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| 352 | for (int i=0 ; i<parser.getAttributeCount() ; i++){ |
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| 353 | gmlString.append(" " + parser.getAttributeName(i) +
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| 354 | "=\"" + parser.getAttributeValue(i) + "\""); |
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| 355 | } |
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| 356 | gmlString.append(">");
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| 357 | break;
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| 358 | case KXmlParser.END_TAG:
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| 359 | 9917 | jorpiell | if (parser.getName().compareTo("geometryMember")==0){ |
| 360 | //Esta etiqueta de gml que nos indica donde empieza y donde acaba un subelemento
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| 361 | //de una geometria compleja, como un multipoligono no la admite el parser de Geotools
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| 362 | //Por tanto la debemos de ignorar
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| 363 | break;
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| 364 | } |
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| 365 | 6722 | jorpiell | if ((parser.getName().compareTo(endGeometryTag) == 0)){ |
| 366 | end = true;
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| 367 | } |
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| 368 | gmlString.append("</" + parser.getName() + ">"); |
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| 369 | break;
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| 370 | case KXmlParser.TEXT:
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| 371 | gmlString.append(parser.getText()); |
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| 372 | break;
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| 373 | } |
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| 374 | if (!end){
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| 375 | currentTag = parser.next(); |
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| 376 | } |
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| 377 | } |
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| 378 | }catch (XmlPullParserException e) {
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| 379 | 9917 | jorpiell | //Captured KXML parsing Exception
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| 380 | throw new GMLParserException(e); |
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| 381 | 6722 | jorpiell | } catch (IOException e) { |
| 382 | 9917 | jorpiell | throw new GMLFileReadException(e); |
| 383 | 6722 | jorpiell | } |
| 384 | return gmlString.toString();
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| 385 | } |
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| 386 | |||
| 387 | } |