package com.gaowj.procinstance.action;

import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.sql.SQLException;
import java.text.ParseException;
import java.util.HashMap;
import java.util.Map;

import com.gaowj.business.ProcdefinitionBusiness;
import com.gaowj.business.ProcinstanceBusiness;
import com.gaowj.business.action.BasicAction;
import com.gaowj.business.comp.BusinessManager;
import com.gaowj.business.exception.BusinessException;
import com.gaowj.business.util.Page;
import com.gaowj.business.util.QueryParamUtil;
import com.gaowj.business.util.RequestUtils;

import net.sf.json.JSONObject;

public class dataAction extends BasicAction{

	/**
	 * 
	 */
	private static final long serialVersionUID = -5059421324729466816L;
	
	private StringBuffer filename=new StringBuffer();
	private InputStream is;
	
	private JSONObject jsonObject = new JSONObject();
	private int rows = 20;// 每页显示的记录数
	private int page = 1;// 当前第几页
	public JSONObject getJsonObject() {
		return jsonObject;
	}
	public void setJsonObject(JSONObject jsonObject) {
		this.jsonObject = jsonObject;
	}
	public int getRows() {
		return rows;
	}
	public void setRows(int rows) {
		this.rows = rows;
	}
	public int getPage() {
		return page;
	}
	public void setPage(int page) {
		this.page = page;
	}
	
	/**
	 * 分页获取记录
	 * @param entity
	 * @throws BusinessException
	 */
	public String list() throws BusinessException {
		ProcinstanceBusiness business = BusinessManager.getBusiness(ProcinstanceBusiness.class);
		Map<String, Object> query = RequestUtils.getUpdateFieldMap(request,RequestUtils.UPDATEDATAFIELDPREFIX);
		try {
			query = QueryParamUtil.StringToDate(query);
			Page<Map<String, Object>> pageRows = business.list_proc_instance(pageNo,pageSize, query);
			setPageCount((pageRows.getCount() - 1) / pageSize + 1);
			Map<String, Object> data = new HashMap<String, Object>();
			data.put("rowSet", QueryParamUtil.DateTimeToString(pageRows.getItems()));
			data.put("pageNo", pageNo);
			data.put("pageSize", pageSize);
			data.put("pageCount", pageCount);
			data.put("rows", data.get("rowSet"));
			data.put("total", pageRows.getCount());
			jsonObject = new JSONObject();
			jsonObject.putAll(data);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (ParseException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return "json";
	}
	
	public String showProcinstanceImg(){
		ProcinstanceBusiness business = BusinessManager.getBusiness(ProcinstanceBusiness.class);
		is=business.viewPic(request.getParameter("instanceId"),filename);
		return "download";
	}
	
	public InputStream getInputStream() throws Exception {
		return is;
	}
	
	public String getFileName() throws UnsupportedEncodingException{
		String name=filename.toString();
		String agent = request.getHeader("User-agent");
		// 如果浏览器是IE浏览器，就得进行编码转换
		if (agent.contains("MSIE")) {
			name = URLEncoder.encode(name, "UTF-8");
		} else {
			name = new String(name.getBytes(), "ISO-8859-1");
		}
		return name;
	}
}