Add Rate Limiting Filter in connection handler

Author: gvaguirres

src/main/java/org/example/ConnectionHandler.java

@@ -26,6 +26,9 @@ public ConnectionHandler(Socket client) {
     }
 private List<Filter> buildFilters() {
         List<Filter> list = new ArrayList<>();
+
+        list.add(new org.example.filter.RateLimitingFilter());
+
         AppConfig config = ConfigLoader.get();
         AppConfig.IpFilterConfig ipFilterConfig = config.ipFilter();
         if (Boolean.TRUE.equals(ipFilterConfig.enabled())) {
@@ -57,7 +60,8 @@ public void runConnectionHandler() throws IOException {
 
         int statusCode = response.getStatusCode();
         if (statusCode == HttpResponseBuilder.SC_FORBIDDEN ||
-                statusCode == HttpResponseBuilder.SC_BAD_REQUEST) {
+                statusCode == HttpResponseBuilder.SC_BAD_REQUEST ||
+                statusCode == HttpResponseBuilder.SC_TOO_MANY_REQUESTS) {
             byte[] responseBytes = response.build();
             client.getOutputStream().write(responseBytes);
             client.getOutputStream().flush();