com.senacor.wbs.web.core.EnumConverter.java Source code

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Here is the source code for com.senacor.wbs.web.core.EnumConverter.java

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/**
 * Copyright 2009 Roland Foerther, Carl-Eric-Menzel, Olaf Siefart
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.senacor.wbs.web.core;

import java.util.Locale;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.WordUtils;
import org.apache.wicket.util.convert.converters.AbstractConverter;

public class EnumConverter extends AbstractConverter {
    private final Class enumType;

    public EnumConverter(Class enumType) {
        this.enumType = enumType;
    }

    public Object convertToObject(String value, Locale locale) {
        String upper = value.toUpperCase(locale).trim();
        String enumName = StringUtils.replace(upper, " ", "_");
        try {
            return Enum.valueOf(enumType, enumName);
        } catch (IllegalArgumentException ex) {
            throw newConversionException("Cannot parse '" + value + "' using enum type " + enumType.getName(),
                    value, locale);
        }
    }

    public String convertToString(Object value, Locale locale) {
        Enum enumValue = (Enum) value;
        String enumName = enumValue.name();
        String words = StringUtils.replace(enumName, "_", " ");
        return WordUtils.capitalizeFully(words);
    }

    @Override
    protected Class getTargetType() {
        return enumType;
    }
}