www.pudn.com > SecurityFilter.rar > AuthenticatorFactory.java

package dev.trade.common.securityfilter.authenticator; 
 
import javax.servlet.*; 
import dev.trade.common.securityfilter.config.*; 
 
/** 
 * 
Title: 权限过滤器
 
 * 
 * 
Description: 验证器工厂,用于生成验证器
 
 * 
 * 
Copyright: Copyright (c) 2006
 
 * 
 * 
Company: 
 
 * 
 * @author Zheng YanNan 
 * @version 1.0 
 */ 
public class AuthenticatorFactory { 
 
   /** 
    * 根据配置创建验证器 
    * @param filterConfig FilterConfig 
    * @param securityConfig SecurityConfig 
    * @return Authenticator  返回的验证器 
    * @throws Exception 
    */ 
   public static Authenticator createAuthenticator( 
      FilterConfig filterConfig, 
      SecurityConfig securityConfig 
   ) throws Exception { 
      Authenticator authenticator = null; 
      String authMethod = securityConfig.getAuthMethod(); 
      authenticator = securityConfig.getAuthenticator(); 
      if(authenticator == null) 
        throw new Exception("验证方法为" + authMethod + "的验证器不存在或无效！"); 
      authenticator.init(filterConfig, securityConfig); 
      return authenticator; 
   } 
}