import org.springframework.security.providers.AuthenticationProvider; //导入依赖的package包/类
/**
 * Ensure that we have an authentication manager to work with. If one has not been
 * specifically wired in, then look for beans to "auto-wire" in. Look for a bean of
 * one of the following types (in order): {@link ProviderManager},
 * {@link AuthenticationProvider}, and {@link AuthenticationManager}.
 * 
 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
 */
public void afterPropertiesSet() {
    // Ensure that we have our authentication manager
    if( authenticationManager == null ) {
        if( logger.isDebugEnabled() ) {
            logger.debug( "No AuthenticationManager defined, look for one" );
        }

        // Try the class types in sequence
        Class[] types = new Class[] { ProviderManager.class, AuthenticationProvider.class,
                AuthenticationManager.class };

        for( int i = 0; i < types.length; i++ ) {
            if( tryToWire( types[i] ) ) {
                break;
            }
        }
    }

    // If we still don't have one, then that's it
    if( authenticationManager == null ) {
        throw new IllegalArgumentException( "authenticationManager must be defined" );
    }
}
 

import org.springframework.security.providers.AuthenticationProvider; //导入依赖的package包/类
@Test
public void shouldCreateLicenseEnforcementProviderWithUserServicePassedIn() throws Exception {
    GoAuthenticationProvider licenseEnforcementProvider = (GoAuthenticationProvider) factory.getObject();
    AuthenticationProvider underlyingProvider = mock(AuthenticationProvider.class);
    licenseEnforcementProvider.setProvider(underlyingProvider);
    UsernamePasswordAuthenticationToken auth = new UsernamePasswordAuthenticationToken("foo", "bar");
    UsernamePasswordAuthenticationToken resultantAuthorization = new UsernamePasswordAuthenticationToken(
            new org.springframework.security.userdetails.User("foo-user", "pass", true, true, true, true, new GrantedAuthority[]{GoAuthority.ROLE_USER.asAuthority()}), "bar");
    when(underlyingProvider.authenticate(auth)).thenReturn(resultantAuthorization);
    licenseEnforcementProvider.authenticate(auth);
    verify(userService).addUserIfDoesNotExist(UserHelper.getUser(resultantAuthorization));
}
 

import org.springframework.security.providers.AuthenticationProvider; //导入依赖的package包/类
@Before
public void setUp() throws Exception {
    userService = mock(UserService.class);
    underlyingProvider = mock(AuthenticationProvider.class);
    enforcementProvider = new GoAuthenticationProvider(userService, underlyingProvider);
    auth = new UsernamePasswordAuthenticationToken(new User("user", "pass", true, true, true, true, new GrantedAuthority[]{}), "credentials");
    resultantAuthorization = new UsernamePasswordAuthenticationToken(new User("user-authenticated", "pass", true, true, true, true,
            new GrantedAuthority[]{GoAuthority.ROLE_GROUP_SUPERVISOR.asAuthority()}), "credentials");
    when(underlyingProvider.authenticate(auth)).thenReturn(resultantAuthorization);
}
 

import org.springframework.security.providers.AuthenticationProvider; //导入依赖的package包/类
public GoAuthenticationProvider(UserService userService, AuthenticationProvider provider) {
    this.userService = userService;
    this.provider = provider;
}
 

import org.springframework.security.providers.AuthenticationProvider; //导入依赖的package包/类
public GoAuthenticationProvider setProvider(AuthenticationProvider provider) {
    this.provider = provider;
    return this;
}