Library: org.gvsig.sldtools

/*******************************************************************************

 *

 *   gvSIG. Desktop Geographic Information System.

 *  

 *   Copyright (C) 2007-2013 gvSIG Association.

 *  

 *   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 3

 *   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., 51 Franklin Street, Fifth Floor, Boston,

 *   MA  02110-1301, USA.

 *  

 *   For any additional information, do not hesitate to contact us

 *   at info AT gvsig.com, or visit our website www.gvsig.com.

 *   

 *******************************************************************************/

package org.gvsig.sldsupport.impl.sld.parsing.filteroperator.comparison;

import java.io.IOException;

import org.xmlpull.v1.XmlPullParser;

import org.xmlpull.v1.XmlPullParserException;

import org.gvsig.sldsupport.exception.InvalidSLDObjectException;

import org.gvsig.sldsupport.exception.SLDReadException;

import org.gvsig.sldsupport.exception.UnsupportedSLDObjectException;

import org.gvsig.sldsupport.impl.sld.parsing.ParameterValueElement;

import org.gvsig.sldsupport.impl.sld.parsing.expression.ExpressionElement;

import org.gvsig.sldsupport.impl.util.SLDUtils;

import org.gvsig.sldsupport.impl.util.XmlBuilder;

import org.gvsig.sldsupport.sld.filter.FilterTags;

import org.gvsig.sldsupport.sld.filter.expression.SLDExpression;

import org.gvsig.sldsupport.sld.filter.operator.comparison.SLDIsBetweenOperator;

import org.gvsig.sldsupport.sld.symbol.misc.SLDParameterValue;

public class IsBetweenComparisonElement {

    public static void append(SLDIsBetweenOperator obj, XmlBuilder xb,

        String version) throws InvalidSLDObjectException,

        UnsupportedSLDObjectException {

        xb.openTag(FilterTags.PROPERTYISBETWEEN);

        // Expression

        ExpressionElement.append(obj.getExpression(), xb, version);

        // lower boundary

        xb.openTag(FilterTags.LOWER_BOUNDARY);

        ExpressionElement.append(obj.getLowerBoundary(), xb, version);

        xb.closeTag();

        // upper boundary

        xb.openTag(FilterTags.UPPER_BOUNDARY);

        ExpressionElement.append(obj.getUpperBoundary(), xb, version);

        xb.closeTag();

        // =================

        xb.closeTag();

    }

    public static SLDIsBetweenOperator parse(XmlPullParser parser,

        String version) throws XmlPullParserException, IOException,

        SLDReadException {

        parser.require(XmlPullParser.START_TAG, null,

            FilterTags.PROPERTYISBETWEEN);

        int tag = 0;

        SLDIsBetweenOperator resp = new SLDIsBetweenOperator();

        tag = parser.nextTag();

        String name = parser.getName();

        SLDExpression expre = null;

        String txt = null;

        while (!(SLDUtils.isStr(name, FilterTags.PROPERTYISBETWEEN) && (tag == XmlPullParser.END_TAG))) {

            switch (tag) {

            case XmlPullParser.START_TAG:

                if (SLDUtils.isStr(name, FilterTags.LOWER_BOUNDARY)) {

                    SLDParameterValue pv =

                        ParameterValueElement.parse(parser, version);

                    resp.setLowerBoundary(pv.getExpressionList().get(0));

                    break;

                }

                if (SLDUtils.isStr(name, FilterTags.UPPER_BOUNDARY)) {

                    SLDParameterValue pv =

                        ParameterValueElement.parse(parser, version);

                    resp.setUpperBoundary(pv.getExpressionList().get(0));

                    break;

                }

                /*

                 * Not lower or upper, it has to be an expression

                 */

                expre = ExpressionElement.parse(parser, version);

                resp.setExpression(expre);

                break;

            case XmlPullParser.END_TAG:

                break;

            case XmlPullParser.TEXT:

                break;

            }

            tag = parser.getEventType();

            name = parser.getName();

        }

        parser.nextTag();

        return resp;

    }

}