package com.ruoyi.basic.utils;
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import com.ruoyi.basic.dto.SelectOptionDTO;
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import com.ruoyi.common.enums.BaseEnum;
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import java.util.ArrayList;
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import java.util.List;
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public class EnumUtils {
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public static List<SelectOptionDTO<?>> getOptions(String className) {
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try {
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Class<?> clazz = Class.forName(className);
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return getOptionsByClass(clazz);
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} catch (ClassNotFoundException e) {
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throw new RuntimeException(e);
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}
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}
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@SuppressWarnings("unchecked")
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private static List<SelectOptionDTO<?>> getOptionsByClass(Class<?> clazz) {
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if (!clazz.isEnum()) {
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throw new RuntimeException("不是枚举：" + clazz.getName());
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}
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if (!BaseEnum.class.isAssignableFrom(clazz)) {
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throw new RuntimeException("未实现 BaseEnum：" + clazz.getName());
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}
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return (List<SelectOptionDTO<?>>) getOptionsInternal((Class) clazz);
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}
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private static <T> List<SelectOptionDTO<T>> getOptionsInternal(
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Class<? extends BaseEnum<T>> clazz) {
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Enum<?>[] enums = (Enum<?>[]) clazz.getEnumConstants();
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List<SelectOptionDTO<T>> list = new ArrayList<>();
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for (Enum<?> e : enums) {
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BaseEnum<T> option = (BaseEnum<T>) e;
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list.add(new SelectOptionDTO<>(
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option.getCode(),
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option.getValue()
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));
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}
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return list;
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}
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}
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