BaseUserIdentifier.java

/* ==================================================================   
 * Created [2009-4-27 下午11:32:55] by Jon.King 
 * ==================================================================  
 * TSS 
 * ================================================================== 
 * mailTo:jinpujun@hotmail.com
 * Copyright (c) Jon.King, 2009-2012 
 * ================================================================== 
 */

package com.jinhe.tss.core.sso.identifier;

import org.apache.log4j.Logger;

import com.jinhe.tss.core.exception.UserIdentificationException;
import com.jinhe.tss.core.sso.IOperator;
import com.jinhe.tss.core.sso.IUserIdentifier;
import com.jinhe.tss.core.sso.IdentityCard;
import com.jinhe.tss.core.sso.TokenUtil;
import com.jinhe.tss.core.sso.context.Context;
import com.jinhe.tss.core.sso.online.OnlineUserManagerFactory;


/**
 * <p>
 * BaseUserIdentifier.java
 * </p>
 * <p>
 * 身份认证器超类
 * </p>
 *
 */
public abstract class BaseUserIdentifier implements IUserIdentifier {
    
    protected Logger log = Logger.getLogger(this.getClass());

	public IdentityCard identify() throws UserIdentificationException {
		// 验证通行证
		IOperator operator = validate();
		// 如果合法，注册在线用户，并获取相关用户信息对象，放入身份对象
		if (operator != null) {
			String appCode   = Context.getApplicationContext().getCurrentAppCode();
			String sessionId = Context.getRequestContext().getSessionId();
			Long userId = operator.getId();
            String userName = operator.getUserName();
			String token = TokenUtil.createToken(sessionId, userId);
            
            // 注册到在线用户库
			OnlineUserManagerFactory.getManager().register(token, appCode, sessionId, userId, userName);
			return new IdentityCard(token, operator);
		} 
		else {
			throw new UserIdentificationException("用户认证失败，没有对应合法身份");
		}
	}

	/**
	 * <p>
	 * 验证用户是否合法，如果合法，返回相应的operator对象，否则返回Null。
	 * 验证过程中任务业务逻辑错误，需要通知用户的，都必须抛出UserIdentificationException异常
	 * </p>
	 *
	 * @return
	 */
	protected abstract IOperator validate() throws UserIdentificationException;
}