import org.slf4j.Logger;import org.slf4j.LoggerFactory;import java.io.Serializable;import java.lang.reflect.Method;import java.util.ArrayList;import java.util.Arrays;import java.util.List;public final class EnumHelper implements Serializable {    private static final long serialVersionUID = 5L;    private static final String GET_CODE_METHOD = "getCode";    private static final String GET_LABEL_METHOD = "getText";    private static final Logger LOGGER = LoggerFactory.getLogger(EnumHelper.class);    private EnumHelper() {    }    public static 
    
     > List
     
       inspectConstants(final Class
      
        clazz) {        return new ArrayList
       
        (Arrays.asList(clazz.getEnumConstants()));    }    public static 
        
         > List
         
           inspectConstants( final Class
          
            clazz, boolean containsNull) { List
           
             list = new ArrayList
            
             (Arrays.asList(clazz.getEnumConstants())); if (!containsNull) { list.remove(0); } return list; } public static 
             
              > T translate(final Class
              
                clazz,final String code) { if (code == null) { return null; } try { final Method m = clazz.getDeclaredMethod(GET_CODE_METHOD); for (T t : inspectConstants(clazz)) { if (code.equals(m.invoke(t))) { return t; } } } catch (Exception e) { // NOSONAR LOGGER.error("failed to translate code {} into object of type {}", code, clazz); } return null; } public static 
               
                > String getCode(final T obj) { if (obj == null) { return null; } try { Class
                 clazz = obj.getClass(); final Method m = clazz.getDeclaredMethod(GET_CODE_METHOD); return m.invoke(obj).toString(); } catch (Exception e) { // NOSONAR // ignore } return null; } public static 
                
                 > T translateByLabel(final Class
                 
                   clazz,final String label) { if (label == null) { return null; } try { final Method m = clazz.getDeclaredMethod(GET_LABEL_METHOD); for (T t : inspectConstants(clazz)) { if (label.equals(m.invoke(t))) { return t; } } } catch (Exception e) { // NOSONAR // ignore LOGGER.error("failed to translate label {} into object of type {}",label, clazz); } return null; }}复制代码