| gvSIG desktop 1

/* 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

 */

package org.gvsig.remoteClient.sld.filterEncoding;

import java.io.IOException;

import org.gvsig.remoteClient.gml.schemas.XMLSchemaParser;

import org.xmlpull.v1.XmlPullParserException;

import com.iver.cit.gvsig.fmap.drivers.legend.LegendDriverException;

/**

 * Implements the main functionalities to parse an PropertyIsBetween element

 * of a Filter Encoding expression<br>

 * 

 * The IsBetween property is defined as a compact way of encoding a range

 * check

 *         

 * @see http://www.opengeospatial.org/standards/filter

 * @author pepe vidal salvador - jose.vidal.salvador@iver.es

 */

public class FIsBetweenOperator  {

        protected FExpression lowerBoundary;

        protected FExpression upperBoundary;

        protected FExpression insideExpression;

        protected String loExpressionStr;

        protected String upExpressionStr;

        protected String inExpressionStr;

        public void parse(XMLSchemaParser parser, int Tag2, String expressionType) throws XmlPullParserException, IOException, LegendDriverException {

                int currentTag;

                boolean end = false;

                currentTag = Tag2;

                parser.require(XMLSchemaParser.START_TAG, null, FilterTags.PROPERTYISBETWEEN);

                while (!end)

                {

                        switch(currentTag)

                        {

                        case XMLSchemaParser.START_TAG:

                                if (parser.getName().compareTo(FilterTags.LOWER_BOUNDARY)!= 0 && 

                                                parser.getName().compareTo(FilterTags.UPPER_BOUNDARY)!= 0 &&

                                                end == false) {

                                        insideExpression = new FExpression();

                                        inExpressionStr = "( ";

                                        insideExpression.parse(parser, currentTag, parser.getName());

                                        inExpressionStr += insideExpression.getExpressionStr();

                                        inExpressionStr += ") ";

                                }

                                if (parser.getName().compareTo(FilterTags.LOWER_BOUNDARY)==0) {

                                        lowerBoundary = new FExpression();

                                        loExpressionStr = "( ";

                                        lowerBoundary.parse(parser, currentTag, parser.getName());

                                        loExpressionStr += lowerBoundary.getExpressionStr();

                                        loExpressionStr += ") ";

                                }

                                else if (parser.getName().compareTo(FilterTags.UPPER_BOUNDARY)==0) {

                                        upperBoundary = new FExpression();

                                        upExpressionStr = "( ";

                                        upperBoundary.parse(parser, currentTag, parser.getName());

                                        upExpressionStr += upperBoundary.getExpressionStr();

                                        upExpressionStr += ") ";

                                }

                                break;        

                        case XMLSchemaParser.END_TAG:

                                if (parser.getName().compareTo(FilterUtils.remNameSpace(FilterTags.PROPERTYISBETWEEN)) == 0)

                                        end = true;

                                break;

                        case XMLSchemaParser.TEXT:

                                break;

                        }

                        if (!end)

                                currentTag = parser.next();

                }

        }

        public FExpression getLowerBoundary() {return lowerBoundary;}

        public FExpression getUpperBoundary() {return upperBoundary;}

        public FExpression getInsideExpression() {return insideExpression;}

        public String getLoExpressionStr() {return loExpressionStr;}

        public String getUpExpressionStr() {return upExpressionStr;}

        public String getInExpressionStr() {return inExpressionStr;}

}