cherry.foundation.type.EnumUtil.java Source code

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Here is the source code for cherry.foundation.type.EnumUtil.java

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/*
 * Copyright 2014,2015 agwlvssainokuni
 *
 * 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 cherry.foundation.type;

import java.util.ArrayList;
import java.util.List;

import org.springframework.context.MessageSource;
import org.springframework.context.i18n.LocaleContextHolder;

public class EnumUtil {

    private static MessageSource messageSource;

    public static MessageSource setMessageSource(MessageSource ms) {
        messageSource = ms;
        return ms;
    }

    public static <E extends Enum<E>> LabeledEnum<E> getLabeledEnum(final E e) {
        return new LabeledEnum<E>() {

            @Override
            public E getEnum() {
                return e;
            }

            @Override
            public String getEnumName() {
                return e.name();
            }

            @Override
            public String getEnumLabel() {
                String cd = new StringBuffer(e.getClass().getName()).append(".").append(e.name()).toString();
                return messageSource.getMessage(cd, null, LocaleContextHolder.getLocale());
            }
        };
    }

    public static <E extends Enum<E>> List<LabeledEnum<E>> getLabeledEnumList(Class<E> type) {
        List<LabeledEnum<E>> list = new ArrayList<>();
        for (E e : type.getEnumConstants()) {
            list.add(getLabeledEnum(e));
        }
        return list;
    }

    @SuppressWarnings("unchecked")
    public static <E extends Enum<E>> List<LabeledEnum<E>> getLabeledEnumList(String typeName) {
        try {
            return getLabeledEnumList((Class<E>) Class.forName(typeName));
        } catch (ClassNotFoundException ex) {
            throw new IllegalArgumentException(ex);
        }
    }

}