thoerup/traininfoservice/RequestPlotter.java

package dk.thoerup.traininfoservice;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.logging.Level;
import java.util.logging.Logger;


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

public class RequestPlotter extends HttpServlet {
        private static final long serialVersionUID = 1L;
        
        static final Logger log = Logger.getLogger(RequestPlotter.class.getName());
        
        protected String getKml() {
                StringBuilder sb = new StringBuilder();
                try {
                        FileInputStream fis = new FileInputStream("/var/log/apache2/access.log");
                        BufferedReader in = new BufferedReader( new InputStreamReader(fis) );
                        
                
                        sb.append( "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" );
                        sb.append( "<kml xmlns=\"http://www.opengis.net/kml/2.2\">\n" );
                        sb.append( "<Document>\n" );
                        
                        String line;
                        while ( (line=in.readLine()) != null) {
                                if (line.indexOf("LocateStation") == -1 ){
                                        continue;
                                }
                                
                                if (line.indexOf("latitude") == -1 ) {
                                        continue;
                                }
                                
                                String toks[] = line.split(" ");
                                String ip = toks[0];
                                String time = toks[3].replace("[", "");
                                String argpart = toks[6].split("?")[1];
                                
                                String args[] = argpart.split("&");
                                
                                String lat = args[0].split("=")[1];
                                String lng = args[0].split("=")[1];
                                
                        sb.append( " <Placemark>" );
                        sb.append( "  <description>IP=" + ip + "  Time=" + time + "</description>" );
                        sb.append( "  <Point><coordinates>" + lng + "," + lat + ",0</coordinates></Point>" );
                        sb.append( " </Placemark>" );
                                
                        }
                        
                        sb.append(  "</Document>\n" );
                        sb.append( "</kml>\n" );
                        
                } catch (Exception e) {
                        sb.append("<!-- error -->");
                        log.log(Level.SEVERE, "getKml()", e);
                }
                
                return sb.toString();
        }

        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
                 resp.setContentType("application/vnd.google-earth.kml");
                 resp.getWriter().print( getKml() );
        }
        
        
}
1	package dk.thoerup.traininfoservice;
2
3	import java.io.BufferedReader;
4	import java.io.FileInputStream;
5	import java.io.IOException;
6	import java.io.InputStreamReader;
7	import java.util.logging.Level;
8	import java.util.logging.Logger;
9
10
11	import javax.servlet.ServletException;
12	import javax.servlet.http.HttpServlet;
13	import javax.servlet.http.HttpServletRequest;
14	import javax.servlet.http.HttpServletResponse;
15
16	public class RequestPlotter extends HttpServlet {
17	private static final long serialVersionUID = 1L;
18
19	static final Logger log = Logger.getLogger(RequestPlotter.class.getName());
20
21	protected String getKml() {
22	StringBuilder sb = new StringBuilder();
23	try {
24	FileInputStream fis = new FileInputStream("/var/log/apache2/access.log");
25	BufferedReader in = new BufferedReader( new InputStreamReader(fis) );
26
27
28	sb.append( "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" );
29	sb.append( "<kml xmlns=\"http://www.opengis.net/kml/2.2\">\n" );
30	sb.append( "<Document>\n" );
31
32	String line;
33	while ( (line=in.readLine()) != null) {
34	if (line.indexOf("LocateStation") == -1 ){
35	continue;
36	}
37
38	if (line.indexOf("latitude") == -1 ) {
39	continue;
40	}
41
42	String toks[] = line.split(" ");
43	String ip = toks[0];
44	String time = toks[3].replace("[", "");
45	String argpart = toks[6].split("?")[1];
46
47	String args[] = argpart.split("&");
48
49	String lat = args[0].split("=")[1];
50	String lng = args[0].split("=")[1];
51
52	sb.append( " <Placemark>" );
53	sb.append( " <description>IP=" + ip + " Time=" + time + "</description>" );
54	sb.append( " <Point><coordinates>" + lng + "," + lat + ",0</coordinates></Point>" );
55	sb.append( " </Placemark>" );
56
57	}
58
59	sb.append( "</Document>\n" );
60	sb.append( "</kml>\n" );
61
62	} catch (Exception e) {
63	sb.append("<!-- error -->");
64	log.log(Level.SEVERE, "getKml()", e);
65	}
66
67	return sb.toString();
68	}
69
70	@Override
71	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
72	resp.setContentType("application/vnd.google-earth.kml");
73	resp.getWriter().print( getKml() );
74	}
75
76
77
78	}