Java 类org.springframework.security.authentication.ProviderNotFoundException 实例源码

/**
 *
 * @param authentication
 * @return Authentication
 */
@Override
public Authentication authenticate(Authentication authentication) {
    Realm realm;
    Set<GrantedAuthority> auths = new HashSet<>();
    try {
        realm = getTomcatContextRealm();
        if(realm instanceof NullRealm) {
            throw new ProviderNotFoundException("No Realms configured for Jwala to Authenticate");
        }
        Principal principal = realm.authenticate(authentication.getName(),
                authentication.getCredentials().toString());
        if (principal == null) {
            throw new BadCredentialsException("Username or Password not found.");
        } else {
            if (principal instanceof GenericPrincipal) {
                String[] roles = ((GenericPrincipal) principal).getRoles();
                for (String role : roles) {
                    auths.add(new SimpleGrantedAuthority(role));
                }
            }
            GrantedAuthoritiesMapperImpl grantedAuthoritiesMapper = new GrantedAuthoritiesMapperImpl();
            return new UsernamePasswordAuthenticationToken(authentication.getName(),
                    authentication.getCredentials(), grantedAuthoritiesMapper.mapAuthorities(auths));
        }
    } catch (AttributeNotFoundException | InstanceNotFoundException | MBeanException | ReflectionException e) {
        LOGGER.error("Error getting realms", e);
        throw new ProviderNotFoundException(e.getMessage());
    }
}

/**
 * Iterates over the internal list of authentication providers an tries to authenticate.
 * 
 * @param authentication
 *            The authentication.
 * @return The resulting authentication.
 */
public Authentication authenticate(Authentication authentication) {
    ProviderManager providerManager = getManager();
    if (providerManager != null) {
        try {
            return providerManager.authenticate(authentication);
        } catch (ProviderNotFoundException e) {
            // will be thrown if there is no supporting provider, ignore it since we are not
            // calling supports methods of the registered providers
        }
    }
    return null;
}

private ProviderNotFoundException noAuthDetailsException(String name) {
    return new ProviderNotFoundException("Auth details '" + name + "' are not configured");
}