public static List<DivideUpstream> buildDivideUpstream(final SelectorDO selectorDO, final String pluginName) {
        if (PluginEnum.DIVIDE.getName().equals(pluginName) && StringUtils.isNotBlank(selectorDO.getHandle())) {
            return GsonUtils.getInstance()
                    .fromList(selectorDO.getHandle(), DivideUpstream.class);
        }
        return Collections.emptyList();
    }
build divide upstream<br>.
if plugin is spring-cloud used {@link SpringCloudSelectorHandle}.<br>
if plugin is divide used {@link DivideUpstream}.<br>

@param selectorDO selector
@param pluginName plugin name
@return default is empty list.
shenyu-admin/src/main/java/org/apache/shenyu/admin/utils/SelectorUtil.java