traininfoservice/db/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 javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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);
                } 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 * FROM trainstatistics");
                        } else if (dump.equals("trainstatistics_avg")) {
                                res = dumpResultset("SELECT avg(location), avg(name), avg(favorites), avg(departure), avg(depcache), avg(deperror), avg(timetable), avg(timecache), avg(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>";
                }
                
                resp.setContentType("text/html");
                resp.getWriter().println(res);
        }

}
1	torben	296	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
9			import javax.servlet.ServletException;
10			import javax.servlet.http.HttpServlet;
11			import javax.servlet.http.HttpServletRequest;
12			import javax.servlet.http.HttpServletResponse;
13
14			public class DumpResultSet extends HttpServlet {
15
16	torben	298	public DumpResultSet() {
17			super();
18			}
19	torben	296
20	torben	298
21	torben	296	private static final long serialVersionUID = 1L;
22
23			String dumpResultset(String sql) throws ServletException {
24			StringBuilder sb = new StringBuilder();
25
26			Connection conn = null;
27			Statement stmt = null;
28			ResultSet rs = null;
29	torben	298
30	torben	296	try {
31	torben	304	int count = 0;
32
33	torben	296	conn = DBConnection.getConnection();
34			stmt = conn.createStatement();
35
36			rs = stmt.executeQuery(sql);
37			ResultSetMetaData meta = rs.getMetaData();
38			int columns = meta.getColumnCount();
39
40			sb.append("<h2>").append(sql).append("</h2>");
41	torben	298	sb.append("<table border=1><tr>");
42	torben	296	for (int i=1; i<=columns; i++) {
43			sb.append("<th>").append( meta.getColumnName(i)).append("</th>");
44			}
45	torben	304	sb.append("</tr>\n\n");
46	torben	296	while(rs.next())
47			{
48	torben	304	count++;
49
50	torben	296	sb.append("<tr>");
51			for (int i=1; i<=columns; i++) {
52	torben	494	String value = rs.getString(i);
53			if (value != null) {
54			value = value.replace("\n", "<br>");
55			}
56			sb.append("<td>").append( value ).append("</td>");
57	torben	296	}
58	torben	304	sb.append("</tr>\n");
59	torben	296	}
60			sb.append("</table>");
61	torben	304	sb.append("Rowcount: ").append(count);
62	torben	296	} catch (Exception e) {
63			throw new ServletException(e);
64			} finally {
65
66			try {
67			if (rs != null && !rs.isClosed())
68			rs.close();
69			} catch (Exception e) {}
70			try {
71			if (stmt != null && !stmt.isClosed())
72			stmt.close();
73			} catch (Exception e) {}
74
75			try {
76			if (conn != null && !conn.isClosed())
77			conn.close();
78			} catch (Exception e) {}
79			}
80
81			return sb.toString();
82			}
83
84	torben	733	String dumpUpdate(String query) throws ServletException {
85			StringBuilder sb = new StringBuilder();
86
87			Connection conn = null;
88			Statement stmt = null;
89			try {
90			conn = DBConnection.getConnection();
91			stmt = conn.createStatement();
92			stmt.execute(query);
93			int count = stmt.getUpdateCount();
94
95			sb.append("<h2>").append(query).append("</h2>");
96			sb.append("Affected rows: ").append(count);
97			} catch (Exception e) {
98			throw new ServletException(e);
99			} finally {
100			try {
101			if (stmt != null && !stmt.isClosed())
102			stmt.close();
103			} catch (Exception e) {}
104
105			try {
106			if (conn != null && !conn.isClosed())
107			conn.close();
108			} catch (Exception e) {}
109			}
110
111			return sb.toString();
112			}
113
114
115
116	torben	296	@Override
117			protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
118			String dump = req.getParameter("dump");
119
120	torben	298	String res = null;
121	torben	296
122	torben	298	if (dump != null) {
123			if (dump.equals("all")) {
124	torben	304	res = dumpResultset("SELECT * FROM trainstations ORDER BY id");
125	torben	298	} else if (dump.equals("coords")) {
126	torben	304	res = dumpResultset("SELECT * FROM trainstations WHERE latitude IS NULL OR longitude IS NULL ORDER BY id");
127	torben	298	} else if (dump.equals("duplicate")) {
128			res = dumpResultset("SELECT name,count() FROM trainstations GROUP BY name HAVING count() > 1");
129	torben	304	} else if (dump.equals("allfull")) {
130			res = dumpResultset("select *, " +
131	torben	497	"'<a href=\"http://maps.google.dk/?q=' \|\|latitude \|\| ',' \|\| longitude \|\| '\">Maps</a>' AS maps, " +
132	torben	314	"'<a href=\"http://www.bane.dk/visStation.asp?ArtikelID=4275&W=FJRN&S=' \|\| stationcode_fjrn \|\| '\">Bane.dk Fjern</a>' as banedk1, " +
133			"'<a href=\"http://www.bane.dk/visStation.asp?ArtikelID=4275&W=S2&S=' \|\| stationcode_stog \|\| '\">Bane.dk stog</a>' as banedk2 " +
134			"FROM trainstations ORDER BY id");
135	torben	377	} else if (dump.equals("disabled")) {
136			res = dumpResultset("SELECT * FROM trainstations WHERE enabled = false ORDER BY id");
137	torben	492	} else if (dump.equals("noaddress")) {
138			res = dumpResultset("SELECT * FROM trainstations WHERE address IS NULL or address = '' ");
139	torben	715	} else if (dump.equals("aliases")) {
140			res = dumpResultset("SELECT * FROM trainstations WHERE aliases IS NOT null");
141	torben	733	} else if (dump.equals("updatecoords")) {
142			res = dumpUpdate("UPDATE trainstations SET earth_coord = ll_to_earth(latitude,longitude)");
143	torben	811	} else if (dump.equals("trainstatistics")) {
144			res = dumpResultset("SELECT * FROM trainstatistics");
145			} else if (dump.equals("trainstatistics_avg")) {
146			res = dumpResultset("SELECT avg(location), avg(name), avg(favorites), avg(departure), avg(depcache), avg(deperror), avg(timetable), avg(timecache), avg(timeerror) FROM trainstatistics");
147	torben	298	}
148	torben	296	}
149	torben	298	if (res == null) {
150	torben	733	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>";
151	torben	298	}
152
153	torben	296	resp.setContentType("text/html");
154			resp.getWriter().println(res);
155			}
156
157			}