thoerup/traininfoservice/LoadStations.java

package dk.thoerup.traininfoservice;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

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


public class LoadStations extends HttpServlet {
        private static final long serialVersionUID = 1L;

        public LoadStations() {
                super();
        }

        protected void insertOrUpdate(Connection conn, String type, String code, String name)  throws SQLException{
                String sql = "SELECT id FROM trainstations WHERE stationcode=?";
                PreparedStatement stmt = conn.prepareStatement(sql);
                stmt.setString(1, code);
                
                ResultSet rs = stmt.executeQuery();
                
                boolean stog = type.equalsIgnoreCase("S2");
                
                if (rs.next()) {
                        int id = rs.getInt(1);
                        stmt = conn.prepareStatement("UPDATE trainstations SET name=?, stog=?, updated=now() WHERE id=?");
                        stmt.setString(1, name);
                        stmt.setBoolean(2, stog);
                        stmt.setInt(3, id);
                        stmt.execute();
                } else {
                        stmt = conn.prepareStatement("INSERT INTO trainstations (name,stationcode,stog,updated) VALUES (?,?,?,now())");
                        stmt.setString(1, name);
                        stmt.setString(2, code);
                        stmt.setBoolean(3, stog);
                        stmt.execute();
                }
                
        }

        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
                String url = "http://rafiki.t-hoerup.dk/tog/stations.php";

                String stationStr = DownloadUtil.getContentString(url, 5000, "ISO-8859-1");

                String stations[] = stationStr.split("\n");
                Connection conn = null; 
                try {
                        conn = DBConnection.getConnection();            
                        for (String stationLine : stations) {
                                String fields[] = stationLine.split(";");
                                
                                
                                insertOrUpdate(conn, fields[0], fields[1], fields[2]);
                        }
                } catch (Exception e) {
                        throw new ServletException(e);
                } finally {
                        try {
                                if (conn != null && !conn.isClosed())
                                        conn.close();
                        } catch (SQLException e) {}
                }                       
                PrintWriter out = resp.getWriter();
                out.print("ok");
        }

}
1	torben	301	package dk.thoerup.traininfoservice;
2
3			import java.io.IOException;
4			import java.io.PrintWriter;
5			import java.sql.Connection;
6			import java.sql.PreparedStatement;
7			import java.sql.ResultSet;
8			import java.sql.SQLException;
9
10			import javax.servlet.ServletException;
11			import javax.servlet.http.HttpServlet;
12			import javax.servlet.http.HttpServletRequest;
13			import javax.servlet.http.HttpServletResponse;
14
15
16			public class LoadStations extends HttpServlet {
17			private static final long serialVersionUID = 1L;
18
19			public LoadStations() {
20			super();
21			}
22
23			protected void insertOrUpdate(Connection conn, String type, String code, String name) throws SQLException{
24			String sql = "SELECT id FROM trainstations WHERE stationcode=?";
25			PreparedStatement stmt = conn.prepareStatement(sql);
26			stmt.setString(1, code);
27
28			ResultSet rs = stmt.executeQuery();
29
30			boolean stog = type.equalsIgnoreCase("S2");
31
32			if (rs.next()) {
33			int id = rs.getInt(1);
34			stmt = conn.prepareStatement("UPDATE trainstations SET name=?, stog=?, updated=now() WHERE id=?");
35			stmt.setString(1, name);
36			stmt.setBoolean(2, stog);
37			stmt.setInt(3, id);
38			stmt.execute();
39			} else {
40			stmt = conn.prepareStatement("INSERT INTO trainstations (name,stationcode,stog,updated) VALUES (?,?,?,now())");
41			stmt.setString(1, name);
42			stmt.setString(2, code);
43			stmt.setBoolean(3, stog);
44			stmt.execute();
45			}
46
47			}
48
49			protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
50			String url = "http://rafiki.t-hoerup.dk/tog/stations.php";
51
52			String stationStr = DownloadUtil.getContentString(url, 5000, "ISO-8859-1");
53
54			String stations[] = stationStr.split("\n");
55			Connection conn = null;
56			try {
57			conn = DBConnection.getConnection();
58			for (String stationLine : stations) {
59			String fields[] = stationLine.split(";");
60
61
62			insertOrUpdate(conn, fields[0], fields[1], fields[2]);
63			}
64			} catch (Exception e) {
65			throw new ServletException(e);
66			} finally {
67			try {
68			if (conn != null && !conn.isClosed())
69			conn.close();
70			} catch (SQLException e) {}
71			}
72			PrintWriter out = resp.getWriter();
73			out.print("ok");
74			}
75
76			}