/*
 * Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package javax.xml.bind.annotation.adapters;

import javax.xml.bind.DatatypeConverter;

/**
 * {@link XmlAdapter} for {@code xs:hexBinary}.
 *
 * <p>
 * This {@link XmlAdapter} binds {@code byte[]} to the hexBinary representation in XML.
 *
 * @author Kohsuke Kawaguchi
 * @since 1.6, JAXB 2.0
 */
public final class HexBinaryAdapter extends XmlAdapter<String,byte[]> {
    public byte[] unmarshal(String s) {
        if(s==null)     return null;
        return DatatypeConverter.parseHexBinary(s);
    }

    public String marshal(byte[] bytes) {
        if(bytes==null)     return null;
        return DatatypeConverter.printHexBinary(bytes);
    }
}