Spring Boot Interceptor with annotation support

MyInterceptor.java

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.HandlerMapping;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;

import static java.lang.String.format;

public class MyInterceptor extends HandlerInterceptorAdapter {

    @Autowired
    private MyRepository myRepository;

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        // Simple check to see if database object exists for requesting urls otherwise 
        // throw runtime exception to be picked up by handler for error response

        Map pathVariables = getUrlPathVariables(request);
        String myId = (String) pathVariables.get("myId"); // e.g. /rest/path/${myParam}

        if (myId != null && myRepository.findById(myId) == null) {
            throw new RuntimeException("My Object not found");
        }

        return true;
    }
    
    private Map getUrlPathVariables(HttpServletRequest request) {
        return (Map) request.getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
    }
    
}

WebApplicationConfig.java

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
public class WebApplicationConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(myInterceptor());
    }

    @Bean
    public MyInterceptor myInterceptor() {
        return new myInterceptor();
    }
}

package com.epic.pos.posApp.Interceptor;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

/**

• Created by oa on 6/3/2019.
  */
  @configuration
  public class WebMVCConfig extends WebMvcConfigurerAdapter {
  @OverRide
  public void addInterceptors(InterceptorRegistry registry) {

   /**@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Note @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    * There are two type of object creation 1) java Bean
    *                                       2) using new xxx();
    * but all dependency injection (@Autowired) and @Service/@Repository will work with java Bean, if we use these
    * annotations inside our Interceptor we should create its' object as java bean (Type 2) is hte example for that.
    * otherwise we can create interceptors object using new xxx() as (Type 1)
   @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ */
  
   // ########### Type 1 ############ Testing Interceptors ########################################################
   //##############################################################################################################
   registry.addInterceptor(new LogInterceptor())
           .addPathPatterns("/login/GetUserbyUsername/*")
           .addPathPatterns("/Testing")
           .excludePathPatterns("/secure-code/public"); //by default applies to
   registry.addInterceptor(new AuthInterceptor())
           .addPathPatterns("/auth");
   //##############################################################################################################
   //##############################################################################################################
  
   // ########### Type 2 ############ Real Interceptors ###########################################################
   //##############################################################################################################
   registry.addInterceptor(myInterceptor())
           .addPathPatterns("/ViewUserRole/SEARCH/*");
   //##############################################################################################################
   //##############################################################################################################
  

  }
  // $$$$$$$$$$$$$$$$ Type 2 bean for interceptor $$$$$$$$$$$$$$$$$$$$$$$$$$$
  @bean
  public PageTaskAuthInterceptor myInterceptor() {
  return new PageTaskAuthInterceptor();
  }
  //$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  }