thoerup/traininfoservice/SavedStatistics.java

package dk.thoerup.traininfoservice;


import java.io.IOException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class SavedStatistics extends HttpServlet {
        private static final long serialVersionUID = 1L;
        
        
        protected SavedStatBean convertRow(ResultSet res) throws SQLException {
                SavedStatBean bean = new SavedStatBean();

                bean.label = res.getString(1);
                bean.station = res.getString(2);
                bean.location = res.getString(3);
                bean.name = res.getString(4);
                bean.favorites = res.getString(5);
                bean.departure = res.getString(6);
                bean.depcache = res.getString(7);
                bean.deperror = res.getString(8);
                bean.timetable = res.getString(9);
                bean.timecache = res.getString(10);
                bean.timeerror = res.getString(11);
                
                return bean;
                
        }
        
        
        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                
                Connection conn = null;
                try {
                        conn = DBConnection.getConnection();
                        Statement stmt = conn.createStatement();
                        List<SavedStatBean> stats = new ArrayList<SavedStatBean>();
                        
                        
                        String sqlAvg = "SELECT count(*) AS count, round(avg(location+name+favorites),1) AS station, round(avg(location),1) as location, round(avg(name),1) as name, round(avg(favorites),1) as favorites, " +
                        "round(avg(departure),1) as departure, round(avg(depcache),1) as depcache, round(avg(deperror),1) as deperror, " +
                        "round(avg(timetable),1) as timetable, round(avg(timecache),1) as timecache, round(avg(timeerror),1) as timeerror " +
                        "FROM trainstatistics " +
                        "WHERE statisticsdate <> now()::date ";
                        
                        ResultSet resAvg = stmt.executeQuery(sqlAvg);
                        resAvg.next();
                        SavedStatBean avgBean = convertRow(resAvg);
                        
                        ////////////////////////////////////////////////
                        
                        String SQL = "SELECT statisticsdate, location+name+favorites AS station, location,name,favorites,departure,depcache,deperror,timetable,timecache,timeerror " +
                        "FROM trainstatistics ORDER BY statisticsdate DESC limit 14";
                        
                        
                        ResultSet res = stmt.executeQuery(SQL);
                        
                        
                        while (res.next()) {
                                SavedStatBean bean = convertRow(res);                                                           
                                stats.add(bean);
                                
                        }

                        conn.close();                   
                        
                        
                        request.setAttribute("avg", avgBean);
                        request.setAttribute("stats", stats);
                        request.getRequestDispatcher("/savedstatistics.jsp").forward(request, response);
                        
                        
                } catch (SQLException e) {
                        try { 
                                if (conn != null) conn.close();
                        } catch (SQLException se) {}
                        throw new ServletException(e);
                }
        }

}
1	package dk.thoerup.traininfoservice;
2
3
4	import java.io.IOException;
5	import java.sql.Connection;
6	import java.sql.ResultSet;
7	import java.sql.SQLException;
8	import java.sql.Statement;
9	import java.util.ArrayList;
10	import java.util.List;
11
12	import javax.servlet.ServletException;
13	import javax.servlet.http.HttpServlet;
14	import javax.servlet.http.HttpServletRequest;
15	import javax.servlet.http.HttpServletResponse;
16
17
18
19	public class SavedStatistics extends HttpServlet {
20	private static final long serialVersionUID = 1L;
21
22
23	protected SavedStatBean convertRow(ResultSet res) throws SQLException {
24	SavedStatBean bean = new SavedStatBean();
25
26	bean.label = res.getString(1);
27	bean.station = res.getString(2);
28	bean.location = res.getString(3);
29	bean.name = res.getString(4);
30	bean.favorites = res.getString(5);
31	bean.departure = res.getString(6);
32	bean.depcache = res.getString(7);
33	bean.deperror = res.getString(8);
34	bean.timetable = res.getString(9);
35	bean.timecache = res.getString(10);
36	bean.timeerror = res.getString(11);
37
38	return bean;
39
40	}
41
42
43	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
44
45	Connection conn = null;
46	try {
47	conn = DBConnection.getConnection();
48	Statement stmt = conn.createStatement();
49	List<SavedStatBean> stats = new ArrayList<SavedStatBean>();
50
51
52	String sqlAvg = "SELECT count(*) AS count, round(avg(location+name+favorites),1) AS station, round(avg(location),1) as location, round(avg(name),1) as name, round(avg(favorites),1) as favorites, " +
53	"round(avg(departure),1) as departure, round(avg(depcache),1) as depcache, round(avg(deperror),1) as deperror, " +
54	"round(avg(timetable),1) as timetable, round(avg(timecache),1) as timecache, round(avg(timeerror),1) as timeerror " +
55	"FROM trainstatistics " +
56	"WHERE statisticsdate <> now()::date ";
57
58	ResultSet resAvg = stmt.executeQuery(sqlAvg);
59	resAvg.next();
60	SavedStatBean avgBean = convertRow(resAvg);
61
62	////////////////////////////////////////////////
63
64	String SQL = "SELECT statisticsdate, location+name+favorites AS station, location,name,favorites,departure,depcache,deperror,timetable,timecache,timeerror " +
65	"FROM trainstatistics ORDER BY statisticsdate DESC limit 14";
66
67
68	ResultSet res = stmt.executeQuery(SQL);
69
70
71
72
73	while (res.next()) {
74	SavedStatBean bean = convertRow(res);
75	stats.add(bean);
76
77	}
78
79	conn.close();
80
81
82	request.setAttribute("avg", avgBean);
83	request.setAttribute("stats", stats);
84	request.getRequestDispatcher("/savedstatistics.jsp").forward(request, response);
85
86
87	} catch (SQLException e) {
88	try {
89	if (conn != null) conn.close();
90	} catch (SQLException se) {}
91	throw new ServletException(e);
92	}
93	}
94
95	}