add java configuration

spring-security-rest-custom/src/main/java/org/baeldung/config/parent/SecurityConfig.java

@@ -1,16 +1,41 @@
 package org.baeldung.config.parent;
 
+import org.baeldung.security.CustomAuthenticationProvider;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.ImportResource;
+import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 
 @Configuration
-@ImportResource({ "classpath:webSecurityConfig.xml" })
+// @ImportResource({ "classpath:webSecurityConfig.xml" })
+@EnableWebSecurity
 @ComponentScan("org.baeldung.security")
-public class SecurityConfig {
+public class SecurityConfig extends WebSecurityConfigurerAdapter {
+
+    @Autowired
+    private CustomAuthenticationProvider authProvider;
 
     public SecurityConfig() {
         super();
     }
 
+    @Override
+    protected void configure(final AuthenticationManagerBuilder auth) throws Exception {
+        auth.authenticationProvider(authProvider);
+    }
+
+    @Override
+    protected void configure(final HttpSecurity http) throws Exception {
+        // @formatter:off
+        http
+        .authorizeRequests().anyRequest().authenticated()
+        .and()
+        .httpBasic();
+        // @formatter:on
+    }
+
+
 }