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 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++) {
                                        sb.append("<td>").append(rs.getString(i)).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();
        }
        
        @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.com/?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");
                        }
                }
                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>";
                }
                
                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			sb.append("<td>").append(rs.getString(i)).append("</td>");
53			}
54	torben	304	sb.append("</tr>\n");
55	torben	296	}
56			sb.append("</table>");
57	torben	304	sb.append("Rowcount: ").append(count);
58	torben	296	} catch (Exception e) {
59			throw new ServletException(e);
60			} finally {
61
62			try {
63			if (rs != null && !rs.isClosed())
64			rs.close();
65			} catch (Exception e) {}
66			try {
67			if (stmt != null && !stmt.isClosed())
68			stmt.close();
69			} catch (Exception e) {}
70
71			try {
72			if (conn != null && !conn.isClosed())
73			conn.close();
74			} catch (Exception e) {}
75			}
76
77			return sb.toString();
78			}
79
80			@Override
81			protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
82			String dump = req.getParameter("dump");
83
84	torben	298	String res = null;
85	torben	296
86	torben	298	if (dump != null) {
87			if (dump.equals("all")) {
88	torben	304	res = dumpResultset("SELECT * FROM trainstations ORDER BY id");
89	torben	298	} else if (dump.equals("coords")) {
90	torben	304	res = dumpResultset("SELECT * FROM trainstations WHERE latitude IS NULL OR longitude IS NULL ORDER BY id");
91	torben	298	} else if (dump.equals("duplicate")) {
92			res = dumpResultset("SELECT name,count() FROM trainstations GROUP BY name HAVING count() > 1");
93	torben	304	} else if (dump.equals("allfull")) {
94			res = dumpResultset("select *, " +
95			"'<a href=\"http://maps.google.com/?q=' \|\|latitude \|\| ',' \|\| longitude \|\| '\">Maps</a>' AS maps, " +
96	torben	314	"'<a href=\"http://www.bane.dk/visStation.asp?ArtikelID=4275&W=FJRN&S=' \|\| stationcode_fjrn \|\| '\">Bane.dk Fjern</a>' as banedk1, " +
97			"'<a href=\"http://www.bane.dk/visStation.asp?ArtikelID=4275&W=S2&S=' \|\| stationcode_stog \|\| '\">Bane.dk stog</a>' as banedk2 " +
98			"FROM trainstations ORDER BY id");
99	torben	377	} else if (dump.equals("disabled")) {
100			res = dumpResultset("SELECT * FROM trainstations WHERE enabled = false ORDER BY id");
101	torben	298	}
102	torben	296	}
103	torben	298	if (res == null) {
104	torben	377	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>";
105	torben	298	}
106
107	torben	296	resp.setContentType("text/html");
108			resp.getWriter().println(res);
109			}
110
111			}