org.apache.commons.beanutils.BeanUtilsBean2 Java Examples

public Dictionary<String, ?> getProperties ()
{
    try
    {
        final Dictionary<String, Object> result = new Hashtable<String, Object> ();

        final Map<?, ?> properties = new BeanUtilsBean2 ().describe ( this.targetBean );
        for ( final Map.Entry<?, ?> entry : properties.entrySet () )
        {
            if ( entry.getValue () != null )
            {
                result.put ( entry.getKey ().toString (), entry.getValue () );
            }
        }
        return result;
    }
    catch ( final Exception e )
    {
        logger.warn ( "Failed to get dictionary", e );
        return new Hashtable<String, Object> ( 1 );
    }
}
 

/**
 * 拷贝属性
 *
 * @param sources     源
 * @param targetClass 目标 class
 * @param <T> 目标类型
 * @return 目标集合
 */
public static < T > List< T > copyPropertiesToList ( List< ? > sources , Class<T> targetClass) {
	AssertUtils.isTrue( CollectionUtils.isEmpty( sources ), "sources is null" );
	AssertUtils.isTrue( targetClass == null, "targetClass is null" );
	List< T > targets = new ArrayList<>( sources.size() );
	for ( Object source : sources ) {
		T target;
		try {
			target = targetClass.newInstance();
			BeanUtilsBean2.getInstance().copyProperties( target , source );
		} catch ( InstantiationException | IllegalAccessException | InvocationTargetException e ) {
			throw new RuntimeException( e.getMessage() , e );
		}
		targets.add( target );
	}
	return targets;
}
 

/**
 * Copy properties.
 *
 * @param desc 不允许为空
 * @param src 不允许为空
 */
@SuppressWarnings({ "unchecked", "rawtypes" })
public static void copyProperties(Object desc, Object src)
{
	BeanUtilsBean2 beanUtilsBean2 = new BeanUtilsBean2();
	try
	{
		if (desc instanceof Map)
		{
			Map<String, Object> map = beanToMap(src);
			((Map) desc).putAll(map);
		} else
		{
			beanUtilsBean2.copyProperties(desc, src);
		}

	} catch (Exception e)
	{
		log.error(e.getMessage(), e);
	}
}
 

public static void beanUtils() throws InvocationTargetException, IllegalAccessException, NoSuchMethodException, InstantiationException {
    BeanUtilsBean beanUtilsBean = new BeanUtilsBean2();
    beanUtilsBean.getConvertUtils().register(false, false, 0);//错误不抛出异常、不使用Null做默认值，数组的默认大小为0

    User user = new User();
    user.setName("test");
    TestUser testUser = new TestUser();

    beanUtilsBean.copyProperties(testUser, user);
    System.out.println(testUser);
}
 

@PrePersist
public void onCreate(Object object) {
  final String ID = "id";
  final String CREATED_AT = "createdAt";
  final String LAST_MODIFIED_AT = "lastModifiedAt";
  BeanUtilsBean beanUtilsBean = BeanUtilsBean2.getInstance();
  try {
    if (Objects.equals(beanUtilsBean.getProperty(object, ID), CommonsConstant.ZERO)) {
      beanUtilsBean.setProperty(object, CREATED_AT, System.currentTimeMillis());
      beanUtilsBean.setProperty(object, LAST_MODIFIED_AT, System.currentTimeMillis());
    }
  } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException ignore) {}
}
 

@PrePersist
public void onCreate(Object object) {
  final String ID = "id";
  final String VALID_FLAG = "validFlag";
  BeanUtilsBean beanUtilsBean = BeanUtilsBean2.getInstance();
  try {
    if (Objects.equals(beanUtilsBean.getProperty(object, ID), CommonsConstant.ZERO)) {
      beanUtilsBean.setProperty(object, VALID_FLAG, ValidFlag.VALID);
    }
  } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException ignore) {}
}
 

@Override
protected ConvertUtilsBean initialValue() {
  ConvertUtilsBean ret = BeanUtilsBean2.getInstance().getConvertUtils();
  ret.deregister();
  ret.register(false, true, 1);
  return ret;
}
 

private GluuInumMap getMarkInumMapEntryAsRemoved(GluuInumMap currentInumMap, String date) {
	GluuInumMap clonedInumMap;
	try {
		clonedInumMap = (GluuInumMap) BeanUtilsBean2.getInstance().cloneBean(currentInumMap);
	} catch (Exception ex) {
		log.error("Failed to prepare GluuInumMap for removal", ex);
		return null;
	}

	String suffix = "-" + date;

	String[] primaryKeyValues = ArrayHelper.arrayClone(clonedInumMap.getPrimaryKeyValues());
	String[] secondaryKeyValues = ArrayHelper.arrayClone(clonedInumMap.getSecondaryKeyValues());
	String[] tertiaryKeyValues = ArrayHelper.arrayClone(clonedInumMap.getTertiaryKeyValues());

	if (ArrayHelper.isNotEmpty(primaryKeyValues)) {
		markInumMapEntryKeyValuesAsRemoved(primaryKeyValues, suffix);
	}

	if (ArrayHelper.isNotEmpty(secondaryKeyValues)) {
		markInumMapEntryKeyValuesAsRemoved(secondaryKeyValues, suffix);
	}

	if (ArrayHelper.isNotEmpty(tertiaryKeyValues)) {
		markInumMapEntryKeyValuesAsRemoved(tertiaryKeyValues, suffix);
	}

	clonedInumMap.setPrimaryKeyValues(primaryKeyValues);
	clonedInumMap.setSecondaryKeyValues(secondaryKeyValues);
	clonedInumMap.setTertiaryKeyValues(tertiaryKeyValues);

	clonedInumMap.setStatus(GluuStatus.INACTIVE);

	return clonedInumMap;
}
 

public void update ( final Map<String, String> parameters ) throws Exception
{
    new BeanUtilsBean2 ().populate ( this.targetBean, parameters );
}