@Override
    public void handlerSelector(final SelectorData selectorData) {
        if (Objects.isNull(selectorData.getId())) {
            return;
        }
        if (!selectorData.getContinued()) {
            ApplicationConfigCache.getInstance().cacheRuleHandle(CacheKeyUtils.INST.getKey(selectorData.getId(), Constants.DEFAULT_RULE), "{}");
        }
        GrpcClientCache.initGrpcClient(selectorData.getId());
    }
@Test
    public void testHandlerSelector() {
        when(selectorData.getId()).thenReturn(null);
        grpcPluginDataHandler.handlerSelector(selectorData);
        when(selectorData.getId()).thenReturn("selectorId");
        grpcPluginDataHandler.handlerSelector(selectorData);
        assertNotNull(GrpcClientCache.getGrpcClient(selectorData.getId()));
    }