Application: gvSIG desktop » gvSIG data provider for GPE

package org.gvsig.gpe.prov.gml.parser.v2.geometries;

import java.io.IOException;

import org.gvsig.gpe.prov.gml.parser.GPEDefaultGmlParser;

import org.gvsig.gpe.prov.gml.utils.GmlTags;

import org.gvsig.xmlpull.lib.api.stream.IQName;

import org.gvsig.xmlpull.lib.api.stream.IXmlStreamReader;

import org.gvsig.xmlpull.lib.api.stream.XmlStreamException;

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

 *

 * $Id:MultiLineStringTypeBinding.java 371 2008-01-10 09:30:19Z jpiera $

 * $Log$

 * Revision 1.1  2007/05/15 07:30:38  jorpiell

 * Add the geometryProperties tags

 *

 * Revision 1.5  2007/05/14 11:18:51  jorpiell

 * ProjectionFactory updated

 *

 * Revision 1.4  2007/05/14 09:52:53  jorpiell

 * Nullpointer exception fixed

 *

 * Revision 1.3  2007/05/14 09:31:06  jorpiell

 * Add the a new class to compare tags

 *

 * Revision 1.2  2007/05/08 10:24:16  jorpiell

 * Add comments to create javadocs

 *

 * Revision 1.1  2007/05/07 12:58:42  jorpiell

 * Add some methods to manage the multigeometries

 *

 *

 */

/**

 * It parses a gml:MultiLineStringType object. Example:

 * <p>

 * <pre>

 * <code>

 * <MultiLineString srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">

 * <lineStringMember>

 * <LineString>

 * <coord><X>56.1</X><Y>0.45</Y></coord>

 * <coord><X>67.23</X><Y>0.98</Y></coord>

 * </LineString>

 * </lineStringMember>

 * <lineStringMember>

 * <LineString>

 * <coord><X>46.71</X><Y>9.25</Y></coord>

 * <coord><X>56.88</X><Y>10.44</Y></coord>

 * </LineString>

 * </lineStringMember>

 * </MultiLineString>

 * </code>

 * </pre>

 * </p> 

 * @author Jorge Piera LLodr? (jorge.piera@iver.es)

 */

public class MultiLineStringTypeBinding extends GeometryBinding{

        /**

         * It parses the gml:MultiLineQName tag

         * @param parser

         * The XML parser

         * @param handler

         * The GPE parser that contains the content handler and

         * the error handler

         * @return

         * A multilinestring

         * @throws XmlStreamException

         */

        public Object parse(IXmlStreamReader parser,GPEDefaultGmlParser handler) throws XmlStreamException, IOException {

                boolean endFeature = false;

                int currentTag;

                Object multiLineString = null;                

                super.setAtributtes(parser, handler);

                multiLineString = 

                        handler.getContentHandler().startMultiLineString(id, srsName);

                IQName tag = parser.getName();

                currentTag = parser.getEventType();

                while (!endFeature){

                        switch(currentTag){

                        case IXmlStreamReader.START_ELEMENT:

                                        if (handler.getQNameComparator().equals(tag,GmlTags.GML_LINESTRINGMEMBER)){

                                                Object lineString = handler.getProfile().getLineStringMemberTypeBinding().

                                                parse(parser, handler);

                                                handler.getContentHandler().addLineStringToMultiLineString(lineString, multiLineString);

                                        }

                                        break;

                                case IXmlStreamReader.END_ELEMENT:

                                        if (handler.getQNameComparator().equals(tag,GmlTags.GML_MULTILINESTRING)){                                                

                                                endFeature = true;        

                                                multiLineString = handler.getContentHandler().endMultiLineString(multiLineString);

                                        }

                                        break;

                                case IXmlStreamReader.CHARACTERS:                                        

                                        break;

                                }

                                if (!endFeature){                                        

                                        currentTag = parser.next();

                                        tag = parser.getName();

                                }

                        }                        

                return multiLineString;        

        }

}