Application: gvSIG desktop » gvSIG data provider for GPE

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

import java.io.IOException;

import javax.xml.namespace.QName;

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

import org.gvsig.gpe.gml.utils.GMLTags;

import org.gvsig.gpe.parser.ICoordinateIterator;

import org.gvsig.gpe.xml.stream.EventType;

import org.gvsig.gpe.xml.stream.IXmlStreamReader;

import org.gvsig.gpe.xml.stream.XmlStreamException;

import org.gvsig.gpe.xml.utils.CompareUtils;

/* 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:OuterBoundaryIsTypeBinding.java 371 2008-01-10 09:30:19Z jpiera $

 * $Log$

 * Revision 1.3  2007/05/15 11:55:11  jorpiell

 * MultiGeometry is now supported

 *

 * Revision 1.2  2007/05/14 09:31:06  jorpiell

 * Add the a new class to compare tags

 *

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

 * Add some methods to manage the multigeometries

 *

 *

 */

/**

 * It parses a gml:outerBoundaryType object. Example:

 * <p>

 * <pre>

 * <code>

 * <outerBoundaryIs>

 * <LinearRing>

 * <coordinates>10.0,10.0 10.0,40.0 40.0,40.0 40.0,10.0 10.0,10.0</coordinates>

 * </LinearRing>

 * </outerBoundaryIs>

 * </code>

 * </pre>

 * </p> 

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

 */

public class OuterBoundaryIsTypeBinding {

        /**

         * It parses the gml:outerBoundaryIs tag

         * @param parser

         * The XML parser

         * @param handler

         * The GPE parser that contains the content handler and

         * the error handler

         * @return

         * An array of coordinates

         * @throws XmlStreamException

         * @throws IOException

         */

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

        parser.require(EventType.START_ELEMENT, GMLTags.GML_OUTERBOUNDARYIS);

        boolean endFeature = false;

                EventType currentTag;

                QName tag = parser.getElementName();

                currentTag = parser.getEventType();

                while (!endFeature){

                        switch(currentTag.getCode()){

                        case EventType.START_ELEMENT_CODE:

                                if (CompareUtils.compareWithNamespace(tag,GMLTags.GML_LINEARRING)){

                                        return handler.getProfile().getLinearRingTypeBinding().

                                        parseCoordinates(parser, handler);

                                }

                                break;

                        case EventType.END_ELEMENT_CODE:

                                if (CompareUtils.compareWithNamespace(tag,GMLTags.GML_OUTERBOUNDARYIS)){                                                

                                        endFeature = true;

                                }

                                break;

                        }

                        if (!endFeature){                                        

                                currentTag = parser.nextTag();

                                tag = parser.getElementName();

                        }

                }

                return null;

        }

}