root / branches / v10 / libraries / libRemoteServices / src / org / gvsig / remoteClient / gml / utils / GMLUtilsParser.java @ 12215
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package org.gvsig.remoteClient.gml.utils; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.io.IOException; |
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import org.gvsig.remoteClient.gml.GMLTags; |
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import org.gvsig.remoteClient.gml.GMLFeaturesParser.Extent; |
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import org.gvsig.remoteClient.gml.exceptions.BaseException; |
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import org.gvsig.remoteClient.gml.exceptions.GMLFileReadException; |
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import org.gvsig.remoteClient.gml.exceptions.GMLNoGeometryException; |
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import org.gvsig.remoteClient.gml.exceptions.GMLParserException; |
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import org.gvsig.remoteClient.gml.factories.IGeometriesFactory; |
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import org.gvsig.remoteClient.gml.schemas.XMLSchemaParser; |
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import org.kxml2.io.KXmlParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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/* CVS MESSAGES:
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*
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* $Id: GMLUtilsParser.java 12215 2007-06-19 09:44:46Z jorpiell $
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* $Log$
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* Revision 1.1.2.3 2007-06-19 09:44:46 jorpiell
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* It always uses geotools to parse the geometries
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*
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* Revision 1.1.2.2 2007/02/23 07:57:27 jorpiell
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* Capacidad de parsear el BBOX que tenga alg?n problema
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*
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* Revision 1.1.2.1 2007/01/25 16:12:59 jorpiell
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* Se han sustituido las clases por las que hay en el nuevo driver de GML.
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*
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* Revision 1.3 2007/01/15 13:11:00 csanchez
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* Sistema de Warnings y Excepciones adaptado a BasicException
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*
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* Revision 1.2 2006/12/22 11:25:44 csanchez
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* Nuevo parser GML 2.x para gml's sin esquema
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*
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* Revision 1.1 2006/08/10 12:00:49 jorpiell
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* Primer commit del driver de Gml
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*
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*
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*/
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/**
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* @author Jorge Piera Llodr? (piera_jor@gva.es)
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* @author Carlos S?nchez Peri??n (sanchez_carper@gva.es)
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*/
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public class GMLUtilsParser { |
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/**
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* Parses the boundedBy GML tag
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* @throws IOException
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* @throws XmlPullParserException
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*
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*/
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public static Extent parseBoundedBy(XMLSchemaParser parser) throws XmlPullParserException, IOException { |
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int currentTag;
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boolean end = false; |
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Rectangle2D extent = null; |
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String srs = null; |
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currentTag = parser.getEventType(); |
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while (!end){
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switch(currentTag){
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case XMLSchemaParser.START_TAG:
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if (parser.getName().compareTo(GMLTags.GML_BOX)==0){ |
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for (int i=0 ; i<parser.getAttributeCount() ;i++){ |
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if (parser.getAttributeName(i).compareTo(GMLTags.GML_SRS_NAME) == 0){ |
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srs = parser.getAttributeValue(i); |
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} |
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} |
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extent = parseBox(parser); |
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} |
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break;
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case XMLSchemaParser.END_TAG:
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if (parser.getName().compareTo(GMLTags.GML_BOUNDEDBY) == 0) |
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end = true;
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break;
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case XMLSchemaParser.TEXT:
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break;
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} |
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if (!end){
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currentTag = parser.next(); |
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} |
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} |
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return new Extent(extent,srs); |
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} |
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/**
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* Parses the box GML tag
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* @throws IOException
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* @throws XmlPullParserException
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*
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*/
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private static Rectangle2D parseBox(XMLSchemaParser parser) throws XmlPullParserException, IOException { |
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int currentTag;
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boolean end = false; |
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Point2D ul = null; |
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Point2D br = null; |
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Rectangle2D extent = null; |
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currentTag = parser.getEventType(); |
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while (!end){
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switch(currentTag){
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case XMLSchemaParser.START_TAG:
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if (parser.getName().compareTo(GMLTags.GML_COORDINATES)==0){ |
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extent = parseCoordinates(parser); |
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}else if(parser.getName().compareTo(GMLTags.GML_COORD)==0){ |
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if (ul == null){ |
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ul = parsePoint(parser); |
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}else{
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br = parsePoint(parser); |
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} |
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} |
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break;
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case XMLSchemaParser.END_TAG:
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if (parser.getName().compareTo(GMLTags.GML_BOX) == 0) |
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end = true;
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break;
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case XMLSchemaParser.TEXT:
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break;
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} |
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if (!end){
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currentTag = parser.next(); |
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} |
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} |
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if (extent == null){ |
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return new Rectangle2D.Double(ul.getX(),ul.getY(),br.getX(),br.getY()); |
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}else{
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return extent;
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} |
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} |
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/**
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* Parses the coordinates GML tag
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* @throws IOException
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* @throws XmlPullParserException
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*
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*/
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private static Rectangle2D parseCoordinates(XMLSchemaParser parser) throws XmlPullParserException, IOException { |
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parser.next(); |
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for (int i=0 ; i<parser.getAttributeCount() ; i++){ |
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if (parser.getAttributeName(i).compareTo(GMLTags.GML_COORDINATES_DECIMAL) == 0){ |
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}else if (parser.getAttributeName(i).compareTo(GMLTags.GML_COORDINATES_CS) == 0){ |
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}else if (parser.getAttributeName(i).compareTo(GMLTags.GML_COORDINATES_TS) == 0){ |
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} |
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} |
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String[] corners = parser.getText().trim().split(" "); |
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String[] ul = corners[0].split(","); |
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String[] br = corners[1].split(","); |
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return new Rectangle2D.Double(Double.parseDouble(ul[0]), |
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Double.parseDouble(ul[1]), |
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Double.parseDouble(br[0]), |
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Double.parseDouble(br[1])); |
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} |
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/**
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* Parses the point GML tag
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* @throws IOException
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* @throws XmlPullParserException
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*
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*/
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private static Point2D parsePoint(XMLSchemaParser parser) throws XmlPullParserException, IOException { |
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int currentTag;
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boolean end = false; |
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String x = "0"; |
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String y = "0"; |
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currentTag = parser.getEventType(); |
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while (!end){
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switch(currentTag){
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case XMLSchemaParser.START_TAG:
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if (parser.getName().compareTo(GMLTags.GML_COORDINATES)==0){ |
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parseCoordinates(parser); |
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} |
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if (parser.getName().compareTo(GMLTags.GML_X) == 0){ |
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parser.next(); |
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x = parser.getText(); |
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}else if (parser.getName().compareTo(GMLTags.GML_Y) == 0){ |
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parser.next(); |
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y = parser.getText(); |
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end = true;
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} |
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break;
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case XMLSchemaParser.END_TAG:
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break;
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case XMLSchemaParser.TEXT:
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break;
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} |
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if (!end){
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currentTag = parser.next(); |
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} |
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} |
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return new Point2D.Double(Double.parseDouble(x),Double.parseDouble(y)); |
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} |
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/**
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* Parses a geometry GML tag
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* @throws IOException
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* @throws XmlPullParserException
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*
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*/
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public static Object parseGeometry(XMLSchemaParser parser,String gmGeometryTag,IGeometriesFactory factory) throws BaseException{ |
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int currentTag;
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boolean end = false; |
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try{
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currentTag = parser.getEventType(); |
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while (!end){
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switch(currentTag){
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case KXmlParser.START_TAG:
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return factory.createGeometry(getGeometryInGML(parser,parser.getName()));
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case KXmlParser.END_TAG:
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if ((parser.getName().compareTo(gmGeometryTag) == 0)) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if (!end){
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currentTag = parser.next(); |
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} |
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} |
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}catch (XmlPullParserException e) {
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// Captured KXML parsing Exception
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throw new GMLParserException(e); |
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} catch (IOException e) { |
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// TODO Auto-generated catch block
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throw new GMLFileReadException(e); |
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} |
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return null; |
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} |
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/**
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* Parses the point GML tag
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* @throws IOException
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* @throws XmlPullParserException
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*
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*/
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private static Point2D parsePoint2D(XMLSchemaParser parser) throws BaseException{ |
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int currentTag;
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boolean end = false; |
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try{
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currentTag = parser.getEventType(); |
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while (!end){
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switch(currentTag){
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case KXmlParser.START_TAG:
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if ((parser.getName().compareTo(GMLTags.GML_COORDINATES) == 0)){ |
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parser.next(); |
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String sCoordinates = parser.getText();
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String[] coordinates = sCoordinates.split(","); |
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return new Point2D.Double(Double.parseDouble(coordinates[0]), |
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Double.parseDouble(coordinates[1])); |
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} |
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break;
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case KXmlParser.END_TAG:
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if ((parser.getName().compareTo(GMLTags.GML_POINT) == 0)) |
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end = true;
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break;
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case KXmlParser.TEXT:
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break;
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} |
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if (!end){
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currentTag = parser.next(); |
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} |
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} |
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}catch (XmlPullParserException e) {
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//Captured KXML parsing Exception
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throw new GMLParserException(e); |
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} catch (IOException e) { |
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// TODO Auto-generated catch block
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throw new GMLFileReadException(e); |
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} |
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return null; |
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} |
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/**
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* Parses the geometry GML tag
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* @return
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* The geometry in GML
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* @throws IOException
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* @throws XmlPullParserException
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*
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*/
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private static String getGeometryInGML(XMLSchemaParser parser,String endGeometryTag) throws BaseException{ |
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int currentTag;
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boolean end = false; |
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StringBuffer gmlString = new StringBuffer(); |
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try{
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currentTag = parser.getEventType(); |
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while (!end){
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switch(currentTag){
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case KXmlParser.START_TAG:
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if (parser.getName().compareTo("geometryMember")==0){ |
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//Esta etiqueta de gml que nos indica donde empieza y donde acaba un subelemento
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//de una geometria compleja, como un multipoligono no la admite el parser de Geotools
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//Por tanto la debemos de ignorar
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break;
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} |
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gmlString.append("<" + parser.getName());
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for (int i=0 ; i<parser.getAttributeCount() ; i++){ |
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gmlString.append(" " + parser.getAttributeName(i) +
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"=\"" + parser.getAttributeValue(i) + "\""); |
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} |
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gmlString.append(">");
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break;
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case KXmlParser.END_TAG:
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if (parser.getName().compareTo("geometryMember")==0){ |
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//Esta etiqueta de gml que nos indica donde empieza y donde acaba un subelemento
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//de una geometria compleja, como un multipoligono no la admite el parser de Geotools
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//Por tanto la debemos de ignorar
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break;
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} |
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if ((parser.getName().compareTo(endGeometryTag) == 0)){ |
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end = true;
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} |
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gmlString.append("</" + parser.getName() + ">"); |
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break;
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case KXmlParser.TEXT:
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gmlString.append(parser.getText()); |
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break;
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} |
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if (!end){
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currentTag = parser.next(); |
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} |
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} |
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}catch (XmlPullParserException e) {
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//Captured KXML parsing Exception
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throw new GMLParserException(e); |
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} catch (IOException e) { |
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throw new GMLFileReadException(e); |
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} |
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return gmlString.toString();
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} |
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} |