package com.tax.controller;


import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.UnknownHostException;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.web.bind.annotation.ModelAttribute;

import com.tax.dao.ErrorReportDao;
import com.tax.service.TaxService;
import com.tax.util.Config;
import com.tax.util.JsonUtil;



/**
 * Action的基类(封装Action的一些方法，其他的Action继承)
 * @ClassName: BaseAction
 * @Description: Base Action for all the request.
*
 */
@Scope("prototype")
public class BaseAction {

	@Resource
	public ErrorReportDao errorReportDao;
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	protected transient final Log logger = LogFactory.getLog(getClass());
	
	protected HttpServletRequest request;
	protected HttpServletResponse response;
	protected HttpSession session;

	protected ThreadLocal<HttpServletRequest> requestLocal = new ThreadLocal<HttpServletRequest>();
	protected ThreadLocal<HttpServletResponse> responseLocal = new ThreadLocal<HttpServletResponse>();
	protected ThreadLocal<HttpSession> sessionLocal = new ThreadLocal<HttpSession>();

	public static final String JSON_SUCCESS = "{success:true}";

	@ModelAttribute
	public void setReqAndRes(HttpServletRequest request,
			HttpServletResponse response) {
		this.request = request;
		this.response = response;
		this.session = request.getSession();
		this.requestLocal.set(request);
		this.responseLocal.set(response);
		this.sessionLocal.set(request.getSession());
	}

	/**
	 * Convenience method to get the request
	 * 
	 * @return current request
	 */
	protected HttpServletRequest getRequest() {
		return requestLocal.get();
	}

	/**
	 * Convenience method to get the response
	 * 
	 * @return current response
	 */
	protected HttpServletResponse getResponse() {
		return responseLocal.get();
	}

	/**
	 * Convenience method to get the session. This will create a session if one
	 * doesn't exist.
	 * 
	 * @return the session from the request (request.getSession()).
	 */
	protected HttpSession getSession() {
		return getRequest().getSession();
	}


	/**
	 * 
	 * @Title: getIpAddr
	 * @Description: 获取客户端最真实有效的IP地址
	 * @param @return 设定文件
	 * @return String 返回类型
	 * @throws
	 */
	public static String getIpAddr(HttpServletRequest request) {
		String ipAddress = request.getHeader("X-Real-IP");
		if (ipAddress == null || ipAddress.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddress)) {
			ipAddress = request.getHeader("X-Forwarded-For");
		}
		if (ipAddress == null || ipAddress.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddress)) {
			ipAddress = request.getHeader("Proxy-Client-IP");
		}
		if (ipAddress == null || ipAddress.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddress)) {
			ipAddress = request.getHeader("WL-Proxy-Client-IP");
		}
		if (ipAddress == null || ipAddress.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddress)) {
			ipAddress = request.getRemoteAddr();
			if (ipAddress.equals("127.0.0.1")
					|| ipAddress.equals("0:0:0:0:0:0:0:1")) {
				// 根据网卡取本机配置的IP
				InetAddress inet = null;
				try {
					inet = InetAddress.getLocalHost();
				} catch (UnknownHostException e) {
					e.printStackTrace();
				}
				ipAddress = inet.getHostAddress();
			}
		}
		// 对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
		if (ipAddress != null && ipAddress.length() > 15) { // "***.***.***.***".length()
															// = 15
			if (ipAddress.indexOf(",") > 0) {
				ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
			}
		}
		return ipAddress;
	}
	
	/**
	 * 对象转JSON流输出
	 * @param obj
	 */
	protected void  printJSON(Object obj) {
        response.setContentType("text/html");  
        PrintWriter out=null;  
        try {
			out = response.getWriter();
			String JSON = JsonUtil.parseObj2Json(obj);
			out.print(JSON);
			out.flush();
		} catch (IOException e) {
			e.printStackTrace();
		}finally{
	        out.close();  
		}
	}
}