thoerup/traininfoservice/DumpResultSet.java

package dk.thoerup.traininfoservice;

import java.io.IOException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.Statement;
import java.util.Date;

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

@WebServlet(urlPatterns={"/DumpResultSet"})
public class DumpResultSet extends HttpServlet {

    public DumpResultSet() {
        super();
    }


        private static final long serialVersionUID = 1L;

        String dumpResultset(String sql) throws ServletException {
                StringBuilder sb = new StringBuilder();
                
                Connection conn = null;
                Statement stmt = null;
                ResultSet rs = null;
                
                try {
                        int count = 0;
                        
                        conn =  DBConnection.getConnection();
                        stmt = conn.createStatement();
                        
                        rs = stmt.executeQuery(sql);
                        ResultSetMetaData meta = rs.getMetaData();
                        int columns = meta.getColumnCount();
                        
                        sb.append("<h2>").append(sql).append("</h2>");
                        sb.append("<table border=1><tr>");
                        for (int i=1; i<=columns; i++) {
                                sb.append("<th>").append( meta.getColumnName(i)).append("</th>");
                        }
                        sb.append("</tr>\n\n");
                        while(rs.next())
                        {
                                count++;
                                
                                sb.append("<tr>");
                                for (int i=1; i<=columns; i++) {
                                        String value = rs.getString(i);
                                        if (value != null) {
                                                value = value.replace("\n", "<br>");
                                        }
                                        sb.append("<td>").append( value ).append("</td>");
                                }
                                sb.append("</tr>\n");
                        }
                        sb.append("</table>");
                        sb.append("Rowcount: ").append(count).append("<br>\n");
                        sb.append("Generated: ").append(new Date()).append("<br>\n");
                } catch (Exception e) { 
                        throw new ServletException(e);
                } finally {

                        try {
                                if (rs != null && !rs.isClosed())
                                        rs.close();
                        } catch (Exception e) {}
                        try {
                                if (stmt != null && !stmt.isClosed())
                                        stmt.close();
                        } catch (Exception e) {}
                        
                        try {
                                if (conn != null && !conn.isClosed())
                                        conn.close();
                        } catch (Exception e) {}
                }
                return sb.toString();
        }
        
        String dumpUpdate(String query) throws ServletException {
                StringBuilder sb = new StringBuilder();

                Connection conn = null;
                Statement stmt = null;
                try {
                        conn =  DBConnection.getConnection();
                        stmt = conn.createStatement();
                        stmt.execute(query);
                        int count = stmt.getUpdateCount();
                        
                        sb.append("<h2>").append(query).append("</h2>");
                        sb.append("Affected rows: ").append(count);
                } catch (Exception e) { 
                        throw new ServletException(e);
                } finally {
                        try {
                                if (stmt != null && !stmt.isClosed())
                                        stmt.close();
                        } catch (Exception e) {}
                        
                        try {
                                if (conn != null && !conn.isClosed())
                                        conn.close();
                        } catch (Exception e) {}
                }
                
                return sb.toString();
        }
        
        
        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
                String dump = req.getParameter("dump");
                
                String res = null;
        
                if (dump != null) {
                        if (dump.equals("all")) {
                                res = dumpResultset("SELECT * FROM trainstations ORDER BY id");
                        } else if (dump.equals("coords")) {
                                res = dumpResultset("SELECT * FROM trainstations WHERE latitude IS NULL OR longitude IS NULL ORDER BY id");                     
                        } else if (dump.equals("duplicate")) {
                                res = dumpResultset("SELECT name,count(*) FROM trainstations GROUP BY name HAVING count(*) > 1"); 
                        } else if (dump.equals("allfull")) {
                                res = dumpResultset("select *, " + 
                                                "'<a href=\"http://maps.google.dk/?q=' ||latitude || ',' || longitude || '\">Maps</a>' AS maps, " + 
                                                "'<a href=\"http://www.bane.dk/visStation.asp?ArtikelID=4275&W=FJRN&S=' || stationcode_fjrn  || '\">Bane.dk Fjern</a>' as banedk1, " + 
                                                "'<a href=\"http://www.bane.dk/visStation.asp?ArtikelID=4275&W=S2&S=' || stationcode_stog  || '\">Bane.dk stog</a>' as banedk2 " + 
                                                "FROM trainstations ORDER BY id");
                        } else if (dump.equals("disabled")) {
                                res = dumpResultset("SELECT * FROM trainstations WHERE enabled = false ORDER BY id");
                        } else if (dump.equals("noaddress")) {
                                res = dumpResultset("SELECT * FROM trainstations WHERE address IS NULL or address = '' ");
                        } else if (dump.equals("aliases")) {
                                res = dumpResultset("SELECT * FROM trainstations WHERE aliases IS NOT null");
                        } else if (dump.equals("updatecoords")) {
                                res = dumpUpdate("UPDATE trainstations SET earth_coord = ll_to_earth(latitude,longitude)");
                        } else if (dump.equals("trainstatistics")) {
                                res = dumpResultset("SELECT statisticsdate, location+name+favorites AS station, location,name,favorites,departure,depcache,deperror,timetable,timecache,timeerror " +
                                                "FROM trainstatistics ORDER BY statisticsdate DESC");
                        } else if (dump.equals("trainstatistics_avg")) {
                                res = dumpResultset("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");
                        }
                }
                if (res == null) {
                        res = "<a href=DumpResultSet?dump=all>All</a><br>" +
                                        "<a href=DumpResultSet?dump=allfull>All with links</a><br>" +
                                        "<a href=DumpResultSet?dump=coords>Missing coords</a><br>" +
                                        "<a href=DumpResultSet?dump=duplicate>Duplicate stations</a><br>" +
                                        "<a href=DumpResultSet?dump=disabled>Disabled stations</a><br>" +
                                        "<a href=DumpResultSet?dump=noaddress>No address</a><br>" +
                                        "<a href=DumpResultSet?dump=aliases>Has aliases</a><br>" +
                                        "<a href=DumpResultSet?dump=updatecoords>update coords</a><br>" +
                                        "<a href=DumpResultSet?dump=trainstatistics>statistics</a><br>" +
                                        "<a href=DumpResultSet?dump=trainstatistics_avg>stats_avg</a><br>";
                }
                
                resp.setContentType("text/html");
                resp.getWriter().println(res);
        }

}
1	package dk.thoerup.traininfoservice;
2
3	import java.io.IOException;
4	import java.sql.Connection;
5	import java.sql.ResultSet;
6	import java.sql.ResultSetMetaData;
7	import java.sql.Statement;
8	import java.util.Date;
9
10	import javax.servlet.ServletException;
11	import javax.servlet.annotation.WebServlet;
12	import javax.servlet.http.HttpServlet;
13	import javax.servlet.http.HttpServletRequest;
14	import javax.servlet.http.HttpServletResponse;
15
16	@WebServlet(urlPatterns={"/DumpResultSet"})
17	public class DumpResultSet extends HttpServlet {
18
19	public DumpResultSet() {
20	super();
21	}
22
23
24	private static final long serialVersionUID = 1L;
25
26	String dumpResultset(String sql) throws ServletException {
27	StringBuilder sb = new StringBuilder();
28
29	Connection conn = null;
30	Statement stmt = null;
31	ResultSet rs = null;
32
33	try {
34	int count = 0;
35
36	conn = DBConnection.getConnection();
37	stmt = conn.createStatement();
38
39	rs = stmt.executeQuery(sql);
40	ResultSetMetaData meta = rs.getMetaData();
41	int columns = meta.getColumnCount();
42
43	sb.append("<h2>").append(sql).append("</h2>");
44	sb.append("<table border=1><tr>");
45	for (int i=1; i<=columns; i++) {
46	sb.append("<th>").append( meta.getColumnName(i)).append("</th>");
47	}
48	sb.append("</tr>\n\n");
49	while(rs.next())
50	{
51	count++;
52
53	sb.append("<tr>");
54	for (int i=1; i<=columns; i++) {
55	String value = rs.getString(i);
56	if (value != null) {
57	value = value.replace("\n", "<br>");
58	}
59	sb.append("<td>").append( value ).append("</td>");
60	}
61	sb.append("</tr>\n");
62	}
63	sb.append("</table>");
64	sb.append("Rowcount: ").append(count).append("<br>\n");
65	sb.append("Generated: ").append(new Date()).append("<br>\n");
66	} catch (Exception e) {
67	throw new ServletException(e);
68	} finally {
69
70	try {
71	if (rs != null && !rs.isClosed())
72	rs.close();
73	} catch (Exception e) {}
74	try {
75	if (stmt != null && !stmt.isClosed())
76	stmt.close();
77	} catch (Exception e) {}
78
79	try {
80	if (conn != null && !conn.isClosed())
81	conn.close();
82	} catch (Exception e) {}
83	}
84	return sb.toString();
85	}
86
87	String dumpUpdate(String query) throws ServletException {
88	StringBuilder sb = new StringBuilder();
89
90	Connection conn = null;
91	Statement stmt = null;
92	try {
93	conn = DBConnection.getConnection();
94	stmt = conn.createStatement();
95	stmt.execute(query);
96	int count = stmt.getUpdateCount();
97
98	sb.append("<h2>").append(query).append("</h2>");
99	sb.append("Affected rows: ").append(count);
100	} catch (Exception e) {
101	throw new ServletException(e);
102	} finally {
103	try {
104	if (stmt != null && !stmt.isClosed())
105	stmt.close();
106	} catch (Exception e) {}
107
108	try {
109	if (conn != null && !conn.isClosed())
110	conn.close();
111	} catch (Exception e) {}
112	}
113
114	return sb.toString();
115	}
116
117
118
119	@Override
120	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
121	String dump = req.getParameter("dump");
122
123	String res = null;
124
125	if (dump != null) {
126	if (dump.equals("all")) {
127	res = dumpResultset("SELECT * FROM trainstations ORDER BY id");
128	} else if (dump.equals("coords")) {
129	res = dumpResultset("SELECT * FROM trainstations WHERE latitude IS NULL OR longitude IS NULL ORDER BY id");
130	} else if (dump.equals("duplicate")) {
131	res = dumpResultset("SELECT name,count() FROM trainstations GROUP BY name HAVING count() > 1");
132	} else if (dump.equals("allfull")) {
133	res = dumpResultset("select *, " +
134	"'<a href=\"http://maps.google.dk/?q=' \|\|latitude \|\| ',' \|\| longitude \|\| '\">Maps</a>' AS maps, " +
135	"'<a href=\"http://www.bane.dk/visStation.asp?ArtikelID=4275&W=FJRN&S=' \|\| stationcode_fjrn \|\| '\">Bane.dk Fjern</a>' as banedk1, " +
136	"'<a href=\"http://www.bane.dk/visStation.asp?ArtikelID=4275&W=S2&S=' \|\| stationcode_stog \|\| '\">Bane.dk stog</a>' as banedk2 " +
137	"FROM trainstations ORDER BY id");
138	} else if (dump.equals("disabled")) {
139	res = dumpResultset("SELECT * FROM trainstations WHERE enabled = false ORDER BY id");
140	} else if (dump.equals("noaddress")) {
141	res = dumpResultset("SELECT * FROM trainstations WHERE address IS NULL or address = '' ");
142	} else if (dump.equals("aliases")) {
143	res = dumpResultset("SELECT * FROM trainstations WHERE aliases IS NOT null");
144	} else if (dump.equals("updatecoords")) {
145	res = dumpUpdate("UPDATE trainstations SET earth_coord = ll_to_earth(latitude,longitude)");
146	} else if (dump.equals("trainstatistics")) {
147	res = dumpResultset("SELECT statisticsdate, location+name+favorites AS station, location,name,favorites,departure,depcache,deperror,timetable,timecache,timeerror " +
148	"FROM trainstatistics ORDER BY statisticsdate DESC");
149	} else if (dump.equals("trainstatistics_avg")) {
150	res = dumpResultset("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, " +
151	"round(avg(departure),1) as departure, round(avg(depcache),1) as depcache, round(avg(deperror),1) as deperror, " +
152	"round(avg(timetable),1) as timetable, round(avg(timecache),1) as timecache, round(avg(timeerror),1) as timeerror " +
153	"FROM trainstatistics");
154	}
155	}
156	if (res == null) {
157	res = "<a href=DumpResultSet?dump=all>All</a><br>" +
158	"<a href=DumpResultSet?dump=allfull>All with links</a><br>" +
159	"<a href=DumpResultSet?dump=coords>Missing coords</a><br>" +
160	"<a href=DumpResultSet?dump=duplicate>Duplicate stations</a><br>" +
161	"<a href=DumpResultSet?dump=disabled>Disabled stations</a><br>" +
162	"<a href=DumpResultSet?dump=noaddress>No address</a><br>" +
163	"<a href=DumpResultSet?dump=aliases>Has aliases</a><br>" +
164	"<a href=DumpResultSet?dump=updatecoords>update coords</a><br>" +
165	"<a href=DumpResultSet?dump=trainstatistics>statistics</a><br>" +
166	"<a href=DumpResultSet?dump=trainstatistics_avg>stats_avg</a><br>";
167	}
168
169	resp.setContentType("text/html");
170	resp.getWriter().println(res);
171	}
172
173	}