how to inject my custom ProviderManager with Spring security

[idavollen]

In my Spring Boot application, I've come out my custom MyProviderManager where I'd like to control the logic inside method authenticate

public Authentication authenticate(Authentication authentication) {
     // instead of iterating in the AuthenticationProvider list one by one
     // I'd rather choose the right AuthenticationProvider based on the currently requested URL path
     RequestDetails requestDetails = authentication.getDetails();
     if ("/ad/sso".equals(requestDetails.getPath())) {
         return adAuthenticationProvider.authenticate(authentication);
     } else if ("/saml/sso".equals(requestDetails.getPath())) {
         return samlAuthenticationProvider.authenticate(authentication);
     } else if ("/oidc/sso".equals(requestDetails.getPath())) {
         return oidcAuthenticationProvider.authenticate(authentication);
     } else  {
         return ldapAuthenticationProvider.authenticate(authentication);
     }
     return null;
 }

However, I'm now having it hard to inject my custom MyProviderManager with AuthenticationManagerBuilder so that the method performBuild() in AuthenticationManagerBuilder will return MyProviderManager instead of the default one from Spring Security

I had even tried to come out my custom MyAuthenticationManagerBuilder exends AuthenticationManagerBuilder and overridden performBuild() method, but I faced the same issue of how to inject my custom AuthenticationManagerBuilder to Spring Boot

It is really appreciate if someone could shed the light on the issues here or have better alternative ideas tackling my special requirements