spring cloud oauth2授权服务 默认tokenService配置源码

AuthorizationServerEndpointsConfiguration

...
private AuthorizationServerEndpointsConfigurer endpoints = new AuthorizationServerEndpointsConfigurer();
...
//注册工厂
@Bean
public FactoryBean<AuthorizationServerTokenServices> defaultAuthorizationServerTokenServices() {
	return new AuthorizationServerTokenServicesFactoryBean(endpoints);
}
...
protected static class AuthorizationServerTokenServicesFactoryBean
			extends AbstractFactoryBean<AuthorizationServerTokenServices> {
	...
	// 创建tokenService实例
	@Override
	protected AuthorizationServerTokenServices createInstance() throws Exception {
		return endpoints.getDefaultAuthorizationServerTokenServices();
	}
	...
}
...

AuthorizationServerEndpointsConfigurer

...
public AuthorizationServerTokenServices getDefaultAuthorizationServerTokenServices() {
	if (defaultTokenServices != null) {
		return defaultTokenServices;
	}
	// 创建默认tokenService实例
	this.defaultTokenServices = createDefaultTokenServices();
	return this.defaultTokenServices;
}
...
private DefaultTokenServices createDefaultTokenServices() {
	DefaultTokenServices tokenServices = new DefaultTokenServices();
	tokenServices.setTokenStore(tokenStore());
	tokenServices.setSupportRefreshToken(true);
	tokenServices.setReuseRefreshToken(reuseRefreshToken);
	tokenServices.setClientDetailsService(clientDetailsService());
	tokenServices.setTokenEnhancer(tokenEnhancer());
	addUserDetailsService(tokenServices, this.userDetailsService);
	return tokenServices;
}
...
private void addUserDetailsService(DefaultTokenServices tokenServices, UserDetailsService userDetailsService) {
	if (userDetailsService != null) {
		PreAuthenticatedAuthenticationProvider provider = new PreAuthenticatedAuthenticationProvider();
		provider.setPreAuthenticatedUserDetailsService(new UserDetailsByNameServiceWrapper<PreAuthenticatedAuthenticationToken>(
				userDetailsService));
		tokenServices
				.setAuthenticationManager(new ProviderManager(Arrays.<AuthenticationProvider> asList(provider)));
	}
}
...