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/**
 * H2GIS is a library that brings spatial support to the H2 Database Engine
 * . H2GIS is developed by CNRS
 * .
 *
 * This code is part of the H2GIS project. H2GIS is free software; 
 * you can redistribute it and/or modify it under the terms of the GNU
 * Lesser General Public License as published by the Free Software Foundation;
 * version 3.0 of the License.
 *
 * H2GIS 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 Lesser General Public License
 * for more details .
 *
 *
 * For more information, please consult: 
 * or contact directly: info_at_h2gis.org
 */

package org.h2gis.functions.string;

import org.h2gis.api.DeterministicScalarFunction;
import javax.xml.bind.DatatypeConverter;

/**
 * Convert Hexadecimal string into an array of byte.
 * @author Nicolas Fortin
 */
public class HexToVarBinary extends DeterministicScalarFunction {

    public HexToVarBinary() {
        addProperty(PROP_REMARKS, "Convert Hexadecimal string into an array of byte.");
    }

    @Override
    public String getJavaStaticMethod() {
        return "toVarBinary";
    }

    public static byte[] toVarBinary(String hex) {
        if(hex==null) {
            return null;
        }
        return DatatypeConverter.parseHexBinary(hex.replace("\n",""));
    }
}