DelegatingOAuth2UserService (spring-security-docs-manual 5.5.3 API)

java.lang.Object
- org.springframework.security.oauth2.client.userinfo.DelegatingOAuth2UserService<R,U>

Type Parameters:

R - The type of OAuth 2.0 User Request

U - The type of OAuth 2.0 User

All Implemented Interfaces:

OAuth2UserService<R,U>
```
public class DelegatingOAuth2UserService<R extends OAuth2UserRequest,U extends OAuth2User>
extends java.lang.Object
implements OAuth2UserService<R,U>
```
An implementation of an OAuth2UserService that simply delegates to it's internal List of OAuth2UserService(s).
Each OAuth2UserService is given a chance to load an OAuth2User with the first non-null OAuth2User being returned.

Since:

5.0

See Also:

OAuth2UserService, OAuth2UserRequest, OAuth2User

Constructor Summary

Constructors
Constructor	Description
`DelegatingOAuth2UserService(java.util.List<OAuth2UserService<R,U>> userServices)`	Constructs a `DelegatingOAuth2UserService` using the provided parameters.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`U`	`loadUser(R userRequest)`	Returns an `OAuth2User` after obtaining the user attributes of the End-User from the UserInfo Endpoint.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DelegatingOAuth2UserService
```
public DelegatingOAuth2UserService(java.util.List<OAuth2UserService<R,U>> userServices)
```
    Constructs a DelegatingOAuth2UserService using the provided parameters.
    
    Parameters:
    
    userServices - a List of OAuth2UserService(s)
- Method Detail
  - loadUser
```
public U loadUser(R userRequest)
           throws OAuth2AuthenticationException
```
    Description copied from interface: OAuth2UserService
    
    Returns an OAuth2User after obtaining the user attributes of the End-User from the UserInfo Endpoint.
    
    Specified by:
    
    loadUser in interface OAuth2UserService<R extends OAuth2UserRequest,U extends OAuth2User>
    
    Parameters:
    
    userRequest - the user request
    
    Returns:
    
    an OAuth2User
    
    Throws:
    
    OAuth2AuthenticationException - if an error occurs while attempting to obtain the user attributes from the UserInfo Endpoint