Refactor Interceptors

- Filter to swagger
- Add Token Interceptor

Author: edysegura

src/main/java/br/com/spring/restful/config/InterceptorConfig.java

@@ -6,18 +6,27 @@
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 import br.com.spring.restful.interceptor.CounterInterceptor;
+import br.com.spring.restful.interceptor.TokenInterceptor;
 
 @Configuration
 public class InterceptorConfig implements WebMvcConfigurer {
 
-  @Autowired
+  private TokenInterceptor tokenInterceptor;
   private CounterInterceptor counterInterceptor;
 
+  @Autowired
+  public InterceptorConfig(
+    TokenInterceptor tokenInterceptor,
+    CounterInterceptor counterInterceptor
+  ) {
+    this.tokenInterceptor = tokenInterceptor;
+    this.counterInterceptor = counterInterceptor;
+  }
+
   @Override
   public void addInterceptors(InterceptorRegistry registry) {
+    registry.addInterceptor(tokenInterceptor);
     registry.addInterceptor(counterInterceptor);
-    // TODO add token interceptor
-    // TODO exception handler
   }
 
 }

src/main/java/br/com/spring/restful/interceptor/CounterInterceptor.java

@@ -16,10 +16,14 @@ public class CounterInterceptor implements HandlerInterceptor {
   TriggerCounter triggerCounter;
 
   @Override
-  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
-      throws Exception {
-    triggerCounter.increment(request.getMethod() + ":" + request.getRequestURI());
+  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+
+    System.out.println("||----------> API Counter");
+
+    String api = request.getMethod() + ":" + request.getRequestURI();
+    triggerCounter.increment(api);
+
     return HandlerInterceptor.super.preHandle(request, response, handler);
   }
 
-}
+}

src/main/java/br/com/spring/restful/interceptor/TokenInterceptor.java

@@ -0,0 +1,25 @@
+package br.com.spring.restful.interceptor;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.springframework.stereotype.Component;
+import org.springframework.util.StringUtils;
+import org.springframework.web.servlet.HandlerInterceptor;
+
+@Component
+public class TokenInterceptor implements HandlerInterceptor {
+
+  @Override
+  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+
+    System.out.println("||----------> Token authorization validation");
+
+    if (!request.getRequestURI().contains("swagger") && StringUtils.isEmpty(request.getHeader("Authorization"))) {
+      throw new Exception("Could not check the authorization");
+    }
+
+    return HandlerInterceptor.super.preHandle(request, response, handler);
+  }
+
+}