@Override
    public void handlerSelector(final SelectorData selectorData) {
        if (!selectorData.getContinued()) {
            CACHED_HANDLE.get().cachedHandle(CacheKeyUtils.INST.getKey(selectorData.getId(), Constants.DEFAULT_RULE), WafHandle.newDefaultInstance());
        }
    }
The type Waf plugin data handler.
shenyu-plugin/shenyu-plugin-waf/src/main/java/org/apache/shenyu/plugin/waf/handler/WafPluginDataHandler.java