thoerup/traininfoservice/RequestPlotter.java

package dk.thoerup.traininfoservice;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.GZIPInputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

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

import dk.thoerup.traininfoservice.banedk.TimeoutMap;

@WebServlet(urlPatterns={"/RequestPlotter"})
public class RequestPlotter extends HttpServlet {
        private static final long serialVersionUID = 1L;

        static final Logger log = Logger.getLogger(RequestPlotter.class.getName());

        static final String KML = "application/vnd.google-earth.kml";
        static final String KMZ = "application/vnd.google-earth.kmz";
        
        Map<String,String> cache = new TimeoutMap<String,String>(30*60*1000);

        class RequestPosition {
                public String ip;
                public Date time;
                public String lat;
                public String lng;
        }
        
        class PositionContainer {
                List<RequestPosition> blue = new ArrayList<RequestPosition>();
                List<RequestPosition> green = new ArrayList<RequestPosition>();
                List<RequestPosition> yellow = new ArrayList<RequestPosition>();
                List<RequestPosition> red = new ArrayList<RequestPosition>();
        }


        boolean isGz(String fileStr) {
                return fileStr.substring(fileStr.length() - 3).equals(".gz");
        }
        
        protected File[] getFiles(int count) {
                File accessLogDir = new File("/home/app/domain1/logs/access/");
                //File accessLogDir = new File("/home/torben/inst/glassfishv3/glassfish/domains/domain1/logs/access/");
                
                File logFiles[] = accessLogDir.listFiles( new FilenameFilter() {
                        @Override
                        public boolean accept(File dir, String name) {
                                //log.info("name:" + name);
                                return name.startsWith("server_access_log");
                        }                       
                });
                
                Arrays.sort(logFiles);
                
                if (logFiles == null) {                 
                        File[] empty = {};
                        log.info("file array was empty");
                        return empty;
                }
                
                int from = logFiles.length - (count);
                int to = logFiles.length;
                                
                return Arrays.copyOfRange(logFiles, from, to);  
        }
        
        protected PositionContainer getRequestsFromFileWorker(boolean multiple) throws IOException{
                PositionContainer positions = new PositionContainer();

                try {
                        
                        int count;
                        
                        if (multiple == false) {
                                count = 1;
                        } else {
                                count = 4;
                        }
                        
                        File files[] = getFiles(count);

                        SimpleDateFormat df = new SimpleDateFormat("dd/MMM/yyyy:HH:mm:ss");
                
                        Date now = new Date();
                        for (File f : files ) {
                                log.info("Parsing file: "  + f.getName() );
                                
                                if ( !f.exists() ) {
                                        continue;
                                }
                                
                                
                                InputStream input  = new FileInputStream(f);

                                
                                BufferedReader in = new BufferedReader( new InputStreamReader(input) );

        
                                String line;
                                while ( (line=in.readLine()) != null) {
                                        if (line.indexOf("LocateStation") == -1 ){
                                                continue;
                                        }
        
                                        if (line.indexOf("latitude=") == -1 ) {
                                                continue;
                                        }
                                        
                                        if (line.indexOf("longitude=") == -1) {
                                                continue;
                                        }
                                        
                                        RequestPosition pos = new RequestPosition();
        
                                        String toks[] = line.split(" ");
                                        pos.ip = toks[0].replaceAll("\"", "");
        
                                        pos.time = df.parse( toks[2].replace("\"", "") );
        
                                        String argpart = toks[5].split("\\?")[1];
        
                                        String args[] = argpart.split("&");
        
                                        pos.lat = args[0].split("=")[1];
                                        pos.lng = args[1].split("=")[1];
                                        
                                        
                                        long timediff = now.getTime() - pos.time.getTime();                                     
                                        if ( timediff < (3*60*60*1000) ) {
                                                positions.red.add(pos); //RED
                                        } else if ( timediff < (24*60*60*1000)) {
                                                positions.yellow.add(pos); //YELLOW
                                        } else if ( timediff < (7*24*60*60*1000)) {
                                                positions.green.add(pos); //GREEN
                                        } else {
                                                positions.blue.add(pos); //BLUE
                                        }
        
                                }
                                in.close();
                                input.close();
                                
                        }
                } catch (ParseException pe) {
                        log.log(Level.SEVERE, "parseException", pe);
                        throw new IOException(pe);
                } catch (IOException e) {
                        log.log(Level.SEVERE, "getKml()", e);
                        throw e;
                }

                return positions;
        }

        
        /* old apache code
        protected PositionContainer getRequestsFromFileWorker(boolean multiple) throws IOException{
                PositionContainer positions = new PositionContainer();

                try {
                        String files_single[] = {"/var/log/apache2/app_access.log"};
                        String files_multi[] = {"/var/log/apache2/app_access.log.3.gz", "/var/log/apache2/app_access.log.2.gz", "/var/log/apache2/app_access.log.1", "/var/log/apache2/app_access.log"};
                        
                        String files[];
                        
                        if (multiple == false) {
                                files = files_single;
                        } else {
                                files = files_multi;
                        }

                        SimpleDateFormat df = new SimpleDateFormat("dd/MMM/yyyy:HH:mm:ss");
                
                        Date now = new Date();
                        for (String fileStr : files ) {
                                File f = new File(fileStr);
                                if ( !f.exists() ) {
                                        continue;
                                }
                                
                                FileInputStream fis = new FileInputStream(fileStr);
                                
                                InputStream input;
                                if ( isGz(fileStr)) {
                                        input = new GZIPInputStream(fis);
                                } else {
                                        input = fis;
                                }
                                
                                BufferedReader in = new BufferedReader( new InputStreamReader(input) );

        
                                String line;
                                while ( (line=in.readLine()) != null) {
                                        if (line.indexOf("LocateStation") == -1 ){
                                                continue;
                                        }
        
                                        if (line.indexOf("latitude=") == -1 ) {
                                                continue;
                                        }
                                        
                                        if (line.indexOf("longitude=") == -1) {
                                                continue;
                                        }
                                        
                                        RequestPosition pos = new RequestPosition();
        
                                        String toks[] = line.split(" ");
                                        pos.ip = toks[0];
        
                                        pos.time = df.parse( toks[3].replace("[", "") );
        
                                        String argpart = toks[6].split("\\?")[1];
        
                                        String args[] = argpart.split("&");
        
                                        pos.lat = args[0].split("=")[1];
                                        pos.lng = args[1].split("=")[1];
                                        
                                        
                                        long timediff = now.getTime() - pos.time.getTime();                                     
                                        if ( timediff < (3*60*60*1000) ) {
                                                positions.red.add(pos); //RED
                                        } else if ( timediff < (24*60*60*1000)) {
                                                positions.yellow.add(pos); //YELLOW
                                        } else if ( timediff < (7*24*60*60*1000)) {
                                                positions.green.add(pos); //GREEN
                                        } else {
                                                positions.blue.add(pos); //BLUE
                                        }
        
                                }
                                in.close();
                                input.close();
                                fis.close();
                        }
                } catch (ParseException pe) {
                        log.log(Level.SEVERE, "parseException", pe);
                        throw new IOException(pe);
                } catch (IOException e) {
                        log.log(Level.SEVERE, "getKml()", e);
                        throw e;
                }

                return positions;
        }*/
        
        protected void formatPositions(StringBuilder sb, String color, List<RequestPosition> list) {
                sb.append( "<Folder>\n");
                sb.append( " <name>" ).append(color).append("</name>\n");
                sb.append( " <open>0</open>\n" );
                
                int count=0;
                for(RequestPosition current : list) {
                        String id = color + count++; 
                        sb.append( " <Placemark id=\"" + id + "\">\n" );
                        sb.append( "  <styleUrl>#").append(color).append("</styleUrl>\n" );
                        sb.append( "  <description><![CDATA[IP=").append(current.ip).append("<br/>Time=").append(current.time).append("]]></description>\n" );
                        sb.append( "  <Point><coordinates>").append(current.lng).append(",").append(current.lat).append(",0</coordinates></Point>\n" );
                        sb.append( " </Placemark>\n" );                 
                }               
                
                sb.append("</Folder>\n");
        }

        protected String formatXml(PositionContainer positions) {
                StringBuilder sb = new StringBuilder(1024*1024);

                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" );            
                sb.append( " <description><![CDATA[");
                sb.append( "  Red:").append(positions.red.size()).append(" (whithin 3 hours)<br/>\n");
                sb.append( "  Yellow:").append(positions.yellow.size()).append(" (within 24 hours)<br/>\n");
                sb.append( "  Green:").append(positions.green.size()).append(" (within one week)<br/>\n");
                sb.append( "  Blue:").append(positions.blue.size()).append(" (older)<br/>\n");          
                sb.append( " ]]></description>");
                
                
                sb.append( " <Style id=\"red\">\n" );
                sb.append( "  <IconStyle><Icon><href>http://maps.google.com/mapfiles/kml/paddle/red-circle.png</href></Icon></IconStyle>\n" );
                sb.append( " </Style>\n");

                sb.append( " <Style id=\"yellow\">\n" );
                sb.append( "  <IconStyle><Icon><href>http://maps.google.com/mapfiles/kml/paddle/ylw-circle.png</href></Icon></IconStyle>\n" );
                sb.append( " </Style>\n" );

                sb.append( " <Style id=\"green\">\n" );
                sb.append( "  <IconStyle><Icon><href>http://maps.google.com/mapfiles/kml/paddle/grn-circle.png</href></Icon></IconStyle>\n" );
                sb.append( " </Style>\n\n" );
                
                sb.append( " <Style id=\"blue\">\n" );
                sb.append( "  <IconStyle><Icon><href>http://maps.google.com/mapfiles/kml/paddle/blu-circle.png</href></Icon></IconStyle>\n" );
                sb.append( " </Style>\n\n" );           
/*
                String overlay = 
              " <ScreenOverlay>" +
                " <name>Absolute Positioning: Top left</name>" +
                " <description>Absolute Positioning: Top left</description>" +
                " <visibility>1</visibility>" +
                "  <Icon>" +
                "   <href>http://code.google.com/apis/kml/documentation/top_left.jpg</href>" +
                "  </Icon>" +
                "  <overlayXY x=\"0\" y=\"1\" xunits=\"fraction\" yunits=\"fraction\"/>" +
                "  <screenXY x=\"0\" y=\"1\" xunits=\"fraction\" yunits=\"fraction\"/>" +
                "  <rotationXY x=\"0\" y=\"0\" xunits=\"fraction\" yunits=\"fraction\"/>" +
                "  <size x=\"0\" y=\"0\" xunits=\"fraction\" yunits=\"fraction\"/>" +
              " </ScreenOverlay>" ;
                
                sb.append(overlay);
        */      
                

                formatPositions(sb, "blue", positions.blue);
                formatPositions(sb, "green", positions.green);
                formatPositions(sb, "yellow", positions.yellow);
                formatPositions(sb, "red", positions.red);
                

                sb.append( "</Document>\n" );
                sb.append( "</kml>\n" );

                return sb.toString(); 
        }
        
        protected String getRequestsFromFile(boolean multiple) throws IOException {             
                String kmlData = null;
                String key;
                
                if (multiple == false)  {
                        key = "kmldata";
                } else {
                        key = "kmldata-multi";
                }
                                        
                kmlData = null;// = cache.get(key);
                        
                if (kmlData == null) {
                        kmlData = formatXml( getRequestsFromFileWorker(multiple) );
                        cache.put(key, kmlData);
                        kmlData += "<!-- from source -->";                      
                } else {
                        kmlData += "<!-- cached -->";
                }
                                        
                return kmlData;
        }
        
        boolean enabled(String param) {
                if (param == null || param.equals("")) {
                        return false;
                }
                
                int p = 0;
                try { 
                        p = Integer.parseInt(param);
                } catch (Exception e) {}
                
                return (p != 0);
        }

        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
                
                boolean multiple = enabled( req.getParameter("multi") );
                
                String kmlData = getRequestsFromFile(multiple);
                
                if ( enabled(req.getParameter("zip")) ) {

                        ByteArrayOutputStream baos = new ByteArrayOutputStream();

                        ZipOutputStream zip = new ZipOutputStream(baos);
                        zip.putNextEntry( new ZipEntry("trains.kml") );
                        zip.write( kmlData.getBytes() );
                        zip.closeEntry();
                        zip.close();

                        byte bytes[] = baos.toByteArray();

                        resp.setContentType(KMZ);
                        resp.setContentLength( bytes.length );
                        resp.getOutputStream().write(bytes);

                } else {
                        resp.setContentType(KML);
                        resp.getWriter().print( kmlData );
                }
        }
}
1	torben	795	package dk.thoerup.traininfoservice;
2
3			import java.io.BufferedReader;
4	torben	798	import java.io.ByteArrayOutputStream;
5	torben	809	import java.io.File;
6	torben	795	import java.io.FileInputStream;
7	torben	1310	import java.io.FilenameFilter;
8	torben	795	import java.io.IOException;
9	torben	809	import java.io.InputStream;
10	torben	795	import java.io.InputStreamReader;
11	torben	800	import java.text.ParseException;
12			import java.text.SimpleDateFormat;
13	torben	799	import java.util.ArrayList;
14	torben	1310	import java.util.Arrays;
15	torben	800	import java.util.Date;
16	torben	799	import java.util.List;
17	torben	802	import java.util.Map;
18	torben	796	import java.util.logging.Level;
19			import java.util.logging.Logger;
20	torben	809	import java.util.zip.GZIPInputStream;
21	torben	798	import java.util.zip.ZipEntry;
22			import java.util.zip.ZipOutputStream;
23	torben	795
24			import javax.servlet.ServletException;
25	torben	958	import javax.servlet.annotation.WebServlet;
26	torben	795	import javax.servlet.http.HttpServlet;
27			import javax.servlet.http.HttpServletRequest;
28			import javax.servlet.http.HttpServletResponse;
29
30	torben	802	import dk.thoerup.traininfoservice.banedk.TimeoutMap;
31
32	torben	958	@WebServlet(urlPatterns={"/RequestPlotter"})
33	torben	795	public class RequestPlotter extends HttpServlet {
34			private static final long serialVersionUID = 1L;
35	torben	799
36	torben	796	static final Logger log = Logger.getLogger(RequestPlotter.class.getName());
37	torben	799
38	torben	798	static final String KML = "application/vnd.google-earth.kml";
39			static final String KMZ = "application/vnd.google-earth.kmz";
40	torben	802
41	torben	954	Map<String,String> cache = new TimeoutMap<String,String>(30601000);
42	torben	799
43			class RequestPosition {
44			public String ip;
45	torben	800	public Date time;
46	torben	799	public String lat;
47			public String lng;
48			}
49	torben	892
50			class PositionContainer {
51	torben	987	List<RequestPosition> blue = new ArrayList<RequestPosition>();
52	torben	892	List<RequestPosition> green = new ArrayList<RequestPosition>();
53			List<RequestPosition> yellow = new ArrayList<RequestPosition>();
54			List<RequestPosition> red = new ArrayList<RequestPosition>();
55			}
56	torben	799
57
58	torben	809	boolean isGz(String fileStr) {
59			return fileStr.substring(fileStr.length() - 3).equals(".gz");
60			}
61	torben	1310
62			protected File[] getFiles(int count) {
63			File accessLogDir = new File("/home/app/domain1/logs/access/");
64	torben	1311	//File accessLogDir = new File("/home/torben/inst/glassfishv3/glassfish/domains/domain1/logs/access/");
65	torben	1310
66			File logFiles[] = accessLogDir.listFiles( new FilenameFilter() {
67			@Override
68			public boolean accept(File dir, String name) {
69	torben	1311	//log.info("name:" + name);
70	torben	1310	return name.startsWith("server_access_log");
71			}
72			});
73
74	torben	1311	Arrays.sort(logFiles);
75
76	torben	1310	if (logFiles == null) {
77			File[] empty = {};
78	torben	1311	log.info("file array was empty");
79	torben	1310	return empty;
80			}
81
82	torben	1311	int from = logFiles.length - (count);
83			int to = logFiles.length;
84	torben	1310
85			return Arrays.copyOfRange(logFiles, from, to);
86			}
87
88			protected PositionContainer getRequestsFromFileWorker(boolean multiple) throws IOException{
89			PositionContainer positions = new PositionContainer();
90	torben	799
91	torben	1310	try {
92
93			int count;
94
95			if (multiple == false) {
96			count = 1;
97			} else {
98			count = 4;
99			}
100
101			File files[] = getFiles(count);
102
103			SimpleDateFormat df = new SimpleDateFormat("dd/MMM/yyyy:HH:mm:ss");
104
105			Date now = new Date();
106			for (File f : files ) {
107			log.info("Parsing file: " + f.getName() );
108
109			if ( !f.exists() ) {
110			continue;
111			}
112
113
114			InputStream input = new FileInputStream(f);
115
116
117			BufferedReader in = new BufferedReader( new InputStreamReader(input) );
118
119
120			String line;
121			while ( (line=in.readLine()) != null) {
122			if (line.indexOf("LocateStation") == -1 ){
123			continue;
124			}
125
126			if (line.indexOf("latitude=") == -1 ) {
127			continue;
128			}
129
130			if (line.indexOf("longitude=") == -1) {
131			continue;
132			}
133
134			RequestPosition pos = new RequestPosition();
135
136			String toks[] = line.split(" ");
137			pos.ip = toks[0].replaceAll("\"", "");
138
139			pos.time = df.parse( toks[2].replace("\"", "") );
140
141			String argpart = toks[5].split("\\?")[1];
142
143			String args[] = argpart.split("&");
144
145			pos.lat = args[0].split("=")[1];
146			pos.lng = args[1].split("=")[1];
147
148
149			long timediff = now.getTime() - pos.time.getTime();
150			if ( timediff < (36060*1000) ) {
151			positions.red.add(pos); //RED
152			} else if ( timediff < (246060*1000)) {
153			positions.yellow.add(pos); //YELLOW
154			} else if ( timediff < (72460601000)) {
155			positions.green.add(pos); //GREEN
156			} else {
157			positions.blue.add(pos); //BLUE
158			}
159
160			}
161			in.close();
162			input.close();
163
164			}
165			} catch (ParseException pe) {
166			log.log(Level.SEVERE, "parseException", pe);
167			throw new IOException(pe);
168			} catch (IOException e) {
169			log.log(Level.SEVERE, "getKml()", e);
170			throw e;
171			}
172
173			return positions;
174			}
175
176
177			/* old apache code
178	torben	892	protected PositionContainer getRequestsFromFileWorker(boolean multiple) throws IOException{
179			PositionContainer positions = new PositionContainer();
180	torben	799
181	torben	795	try {
182	torben	809	String files_single[] = {"/var/log/apache2/app_access.log"};
183	torben	817	String files_multi[] = {"/var/log/apache2/app_access.log.3.gz", "/var/log/apache2/app_access.log.2.gz", "/var/log/apache2/app_access.log.1", "/var/log/apache2/app_access.log"};
184	torben	809
185			String files[];
186
187			if (multiple == false) {
188			files = files_single;
189			} else {
190			files = files_multi;
191			}
192	torben	799
193	torben	800	SimpleDateFormat df = new SimpleDateFormat("dd/MMM/yyyy:HH:mm:ss");
194	torben	892
195			Date now = new Date();
196	torben	809	for (String fileStr : files ) {
197			File f = new File(fileStr);
198			if ( !f.exists() ) {
199	torben	795	continue;
200			}
201	torben	809
202			FileInputStream fis = new FileInputStream(fileStr);
203
204			InputStream input;
205			if ( isGz(fileStr)) {
206			input = new GZIPInputStream(fis);
207			} else {
208			input = fis;
209			}
210
211			BufferedReader in = new BufferedReader( new InputStreamReader(input) );
212	torben	799
213	torben	809
214			String line;
215			while ( (line=in.readLine()) != null) {
216			if (line.indexOf("LocateStation") == -1 ){
217			continue;
218			}
219
220	torben	818	if (line.indexOf("latitude=") == -1 ) {
221	torben	809	continue;
222			}
223	torben	818
224			if (line.indexOf("longitude=") == -1) {
225			continue;
226			}
227
228	torben	809	RequestPosition pos = new RequestPosition();
229
230			String toks[] = line.split(" ");
231			pos.ip = toks[0];
232
233			pos.time = df.parse( toks[3].replace("[", "") );
234
235			String argpart = toks[6].split("\\?")[1];
236
237			String args[] = argpart.split("&");
238
239			pos.lat = args[0].split("=")[1];
240			pos.lng = args[1].split("=")[1];
241	torben	892
242
243			long timediff = now.getTime() - pos.time.getTime();
244			if ( timediff < (36060*1000) ) {
245			positions.red.add(pos); //RED
246			} else if ( timediff < (246060*1000)) {
247			positions.yellow.add(pos); //YELLOW
248	torben	987	} else if ( timediff < (72460601000)) {
249			positions.green.add(pos); //GREEN
250	torben	892	} else {
251	torben	987	positions.blue.add(pos); //BLUE
252	torben	892	}
253	torben	809
254	torben	795	}
255	torben	809	in.close();
256			input.close();
257			fis.close();
258	torben	795	}
259	torben	800	} catch (ParseException pe) {
260			log.log(Level.SEVERE, "parseException", pe);
261			throw new IOException(pe);
262	torben	799	} catch (IOException e) {
263	torben	796	log.log(Level.SEVERE, "getKml()", e);
264	torben	799	throw e;
265	torben	795	}
266	torben	799
267			return positions;
268	torben	1310	}*/
269	torben	892
270			protected void formatPositions(StringBuilder sb, String color, List<RequestPosition> list) {
271			sb.append( "<Folder>\n");
272			sb.append( " <name>" ).append(color).append("</name>\n");
273			sb.append( " <open>0</open>\n" );
274
275	torben	1000	int count=0;
276			for(RequestPosition current : list) {
277			String id = color + count++;
278			sb.append( " <Placemark id=\"" + id + "\">\n" );
279	torben	896	sb.append( " <styleUrl>#").append(color).append("</styleUrl>\n" );
280	torben	998	sb.append( " <description><![CDATA[IP=").append(current.ip).append("<br/>Time=").append(current.time).append("]]></description>\n" );
281	torben	896	sb.append( " <Point><coordinates>").append(current.lng).append(",").append(current.lat).append(",0</coordinates></Point>\n" );
282	torben	892	sb.append( " </Placemark>\n" );
283			}
284
285			sb.append("</Folder>\n");
286			}
287	torben	795
288	torben	892	protected String formatXml(PositionContainer positions) {
289	torben	897	StringBuilder sb = new StringBuilder(1024*1024);
290	torben	799
291			sb.append( "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" );
292			sb.append( "<kml xmlns=\"http://www.opengis.net/kml/2.2\">\n" );
293			sb.append( "<Document>\n" );
294	torben	941	sb.append( " <description><![CDATA[");
295	torben	987	sb.append( " Red:").append(positions.red.size()).append(" (whithin 3 hours)<br/>\n");
296			sb.append( " Yellow:").append(positions.yellow.size()).append(" (within 24 hours)<br/>\n");
297			sb.append( " Green:").append(positions.green.size()).append(" (within one week)<br/>\n");
298			sb.append( " Blue:").append(positions.blue.size()).append(" (older)<br/>\n");
299	torben	941	sb.append( " ]]></description>");
300	torben	800
301
302			sb.append( " <Style id=\"red\">\n" );
303			sb.append( " <IconStyle><Icon><href>http://maps.google.com/mapfiles/kml/paddle/red-circle.png</href></Icon></IconStyle>\n" );
304			sb.append( " </Style>\n");
305	torben	799
306	torben	800	sb.append( " <Style id=\"yellow\">\n" );
307			sb.append( " <IconStyle><Icon><href>http://maps.google.com/mapfiles/kml/paddle/ylw-circle.png</href></Icon></IconStyle>\n" );
308			sb.append( " </Style>\n" );
309
310			sb.append( " <Style id=\"green\">\n" );
311			sb.append( " <IconStyle><Icon><href>http://maps.google.com/mapfiles/kml/paddle/grn-circle.png</href></Icon></IconStyle>\n" );
312	torben	801	sb.append( " </Style>\n\n" );
313
314	torben	987	sb.append( " <Style id=\"blue\">\n" );
315	torben	988	sb.append( " <IconStyle><Icon><href>http://maps.google.com/mapfiles/kml/paddle/blu-circle.png</href></Icon></IconStyle>\n" );
316	torben	987	sb.append( " </Style>\n\n" );
317	torben	801	/*
318			String overlay =
319			" <ScreenOverlay>" +
320			" <name>Absolute Positioning: Top left</name>" +
321			" <description>Absolute Positioning: Top left</description>" +
322			" <visibility>1</visibility>" +
323			" <Icon>" +
324			" <href>http://code.google.com/apis/kml/documentation/top_left.jpg</href>" +
325			" </Icon>" +
326			" <overlayXY x=\"0\" y=\"1\" xunits=\"fraction\" yunits=\"fraction\"/>" +
327			" <screenXY x=\"0\" y=\"1\" xunits=\"fraction\" yunits=\"fraction\"/>" +
328			" <rotationXY x=\"0\" y=\"0\" xunits=\"fraction\" yunits=\"fraction\"/>" +
329			" <size x=\"0\" y=\"0\" xunits=\"fraction\" yunits=\"fraction\"/>" +
330			" </ScreenOverlay>" ;
331
332			sb.append(overlay);
333			*/
334
335	torben	800
336	torben	987	formatPositions(sb, "blue", positions.blue);
337	torben	892	formatPositions(sb, "green", positions.green);
338	torben	893	formatPositions(sb, "yellow", positions.yellow);
339	torben	892	formatPositions(sb, "red", positions.red);
340
341	torben	800
342	torben	805	sb.append( "</Document>\n" );
343	torben	799	sb.append( "</kml>\n" );
344
345			return sb.toString();
346			}
347	torben	809
348			protected String getRequestsFromFile(boolean multiple) throws IOException {
349			String kmlData = null;
350			String key;
351	torben	802
352	torben	809	if (multiple == false) {
353			key = "kmldata";
354			} else {
355			key = "kmldata-multi";
356			}
357
358	torben	1311	kmlData = null;// = cache.get(key);
359	torben	809
360	torben	803	if (kmlData == null) {
361	torben	809	kmlData = formatXml( getRequestsFromFileWorker(multiple) );
362			cache.put(key, kmlData);
363	torben	803	kmlData += "<!-- from source -->";
364	torben	802	} else {
365	torben	803	kmlData += "<!-- cached -->";
366	torben	802	}
367	torben	809
368			return kmlData;
369			}
370	torben	810
371			boolean enabled(String param) {
372			if (param == null \|\| param.equals("")) {
373			return false;
374			}
375
376			int p = 0;
377			try {
378			p = Integer.parseInt(param);
379			} catch (Exception e) {}
380
381			return (p != 0);
382			}
383	torben	799
384	torben	809	@Override
385			protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
386	torben	802
387	torben	810	boolean multiple = enabled( req.getParameter("multi") );
388	torben	809
389			String kmlData = getRequestsFromFile(multiple);
390
391	torben	810	if ( enabled(req.getParameter("zip")) ) {
392	torben	799
393	torben	798	ByteArrayOutputStream baos = new ByteArrayOutputStream();
394	torben	799
395	torben	798	ZipOutputStream zip = new ZipOutputStream(baos);
396			zip.putNextEntry( new ZipEntry("trains.kml") );
397	torben	803	zip.write( kmlData.getBytes() );
398	torben	798	zip.closeEntry();
399			zip.close();
400	torben	799
401	torben	798	byte bytes[] = baos.toByteArray();
402	torben	799
403	torben	798	resp.setContentType(KMZ);
404			resp.setContentLength( bytes.length );
405			resp.getOutputStream().write(bytes);
406	torben	799
407	torben	798	} else {
408			resp.setContentType(KML);
409	torben	803	resp.getWriter().print( kmlData );
410	torben	798	}
411	torben	795	}
412			}