Spring Social Facebook + Spring Security

Question

I want to integrate Spring social facebook into my application using Spring Security (I use xml configurations). All I need to do is just connect my facebook account with my application account. In a simple example, I found this:

<bean id="connectionRepository" factory-method="createConnectionRepository" factory-bean="usersConnectionRepository" scope="request"> <constructor-arg value="#{request.userPrincipal.name}" /> <aop:scoped-proxy proxy-target-class="false" /> </bean> 

So, as I understand it, this method comes into play:

 public ConnectionRepository createConnectionRepository(String userId) { if (userId == null) { throw new IllegalArgumentException("userId cannot be null"); } return new JdbcConnectionRepository(userId, jdbcTemplate, connectionFactoryLocator, textEncryptor, tablePrefix); } 

It returns " userId " from #{request.userPrincipal.name} . So my question is: how can I pass " userId " to this method if I want to get this " userId " using SecurityContextHolder.getContext().getAuthentication().getPrincipal() .

The only way I can see is to create my implementation of the JdbcUsersConnectionRepository method and override createConnectionRepository(String userId) . But perhaps there is a more elegant solution.

Answer 1

There is another way:

 <bean id="connectionRepository" factory-method="createConnectionRepository" factory-bean="usersConnectionRepository" scope="request"> <constructor-arg value="#{authenticationService.getAuthenticatedUsername()}" /> <aop:scoped-proxy proxy-target-class="false" /> </bean> @Service("authenticationService") public class AuthenticationService { public String getAuthenticatedUsername() { return SecurityContextHolder.getContext().getAuthentication().getPrincipal(); } } 

You can do it in SPeL too (I don't like such dependencies):

 <bean id="connectionRepository" factory-method="createConnectionRepository" factory-bean="usersConnectionRepository" scope="request"> <constructor-arg value="#{T(org.springframework.security.core.context.SecurityContextHolder).getContext().getAuthentication().getPrincipal()}" /> <aop:scoped-proxy proxy-target-class="false" /> </bean>