Application: gvSIG desktop

package org.gvsig.sldsupport.impl.sld1_0_0.parsing.expression;

import java.io.IOException;

import org.gvsig.sldsupport.exception.SLDReadException;

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

import org.gvsig.sldsupport.sld.SLDTags;

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

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

import org.gvsig.sldsupport.sld.filter.expression.operator.SLDFunction;

import org.kxml2.io.KXmlParser;

import org.xmlpull.v1.XmlPullParser;

import org.xmlpull.v1.XmlPullParserException;

public class FunctionElement {

        public static SLDFunction parse(XmlPullParser parser , String version)

                        throws XmlPullParserException, IOException, SLDReadException {

                parser.require(KXmlParser.START_TAG, null, FilterTags.FUNCTION);

                String fname = parser.getAttributeValue(null, SLDTags.NAME_ATTR);

                if (fname == null) {

                        throw new SLDReadException("Attribute 'name' not found in SLD function");

                }

                SLDFunction resp = new SLDFunction();

                resp.setFunctionName(fname);

                int tag = parser.nextTag();

                String name = parser.getName();

                SLDExpression expre = null;

                while (!(SLDUtils.isStr(name, SLDTags.FUNCTION) && tag == KXmlParser.END_TAG)) {

                        expre = ExpressionElement.parse(parser, version);

                        resp.getArguments().add(expre);

                        // =========== Get current values

                        tag = parser.getEventType();

                        name = parser.getName();

                }

                parser.nextTag();

                return resp;

        }

}