feat:support rate-limit window expiration.

Signed-off-by: Haotian Zhang <[email protected]>

Author: SkyeBeFreeman

polaris-common/polaris-client/src/main/java/com/tencent/polaris/client/flow/BaseFlow.java

@@ -96,6 +96,7 @@ public static Instance commonGetOneInstance(Extensions extensions, ServiceKey se
         ServiceConfig serviceConfig = extensions.getConfiguration().getProvider().getService();
         RouteInfo routeInfo = new RouteInfo(
                 null, null, dstSvcInfo, null, "", serviceConfig);
+        routeInfo.putRouterMetadata("metadataRoute", metadata);
         ResourcesResponse resourcesResponse = BaseFlow
                 .syncGetResources(extensions, false, provider, flowControlParam);
         LOG.debug("[ConnectionManager]success to discover service {}", svcEventKey);

polaris-plugins/polaris-plugin-api/src/main/java/com/tencent/polaris/api/plugin/route/RouteInfo.java

@@ -253,6 +253,15 @@ public Map<String, String> getRouterMetadata(String routerType) {
         return Collections.unmodifiableMap(metadata);
     }
 
+    public void putRouterMetadata(String routerType, Map<String, String> metadata) {
+        Map<String, String> tempMetadata = routerMetadata.get(routerType);
+        if (tempMetadata == null || tempMetadata.isEmpty()) {
+            tempMetadata = new HashMap<>();
+            routerMetadata.put(routerType, tempMetadata);
+        }
+        tempMetadata.putAll(metadata);
+    }
+
     public void setRouterArguments(Map<String, Set<RouteArgument>> routerArguments) {
         Map<String, Map<String, String>> routerMetadata = this.routerMetadata;