info.magnolia.content2bean.impl.EnumAwareConvertUtilsBean.java Source code

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Here is the source code for info.magnolia.content2bean.impl.EnumAwareConvertUtilsBean.java

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/**
 * This file Copyright (c) 2009-2012 Magnolia International
 * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
 *
 *
 * This file is dual-licensed under both the Magnolia
 * Network Agreement and the GNU General Public License.
 * You may elect to use one or the other of these licenses.
 *
 * This file is distributed in the hope that it will be
 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
 * Redistribution, except as permitted by whichever of the GPL
 * or MNA you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or
 * modify this file under the terms of the GNU General
 * Public License, Version 3, as published by the Free Software
 * Foundation.  You should have received a copy of the GNU
 * General Public License, Version 3 along with this program;
 * if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 2. For the Magnolia Network Agreement (MNA), this file
 * and the accompanying materials are made available under the
 * terms of the MNA which accompanies this distribution, and
 * is available at http://www.magnolia-cms.com/mna.html
 *
 * Any modifications to this file must keep this entire header
 * intact.
 *
 */
package info.magnolia.content2bean.impl;

import org.apache.commons.beanutils.ConvertUtilsBean;
import org.apache.commons.beanutils.Converter;

/**
 * A custom implementation of ConvertUtilsBean which can deal with Enum feature introduced in Java 5.
 *
 * @author gjoseph
 * @version $Id: $
 */
class EnumAwareConvertUtilsBean extends ConvertUtilsBean {
    private final EnumConverter enumConverter = new EnumConverter();

    @Override
    public Converter lookup(Class clazz) {
        final Converter converter = super.lookup(clazz);
        // no specific converter for this class, so it's neither a String, (which has a default converter),
        // nor any known object that has a custom converter for it. It might be an enum !
        if (converter == null && clazz.isEnum()) {
            return enumConverter;
        }
        return converter;
    }

    private class EnumConverter implements Converter {
        @Override
        public Object convert(Class type, Object value) {
            return Enum.valueOf(type, (String) value);
        }
    }
}