[51] | 1 | package de.ugoe.cs.eventbench.web.commands;
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| 2 |
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| 3 | import java.io.File;
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| 4 | import java.io.FileReader;
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| 5 | import java.security.InvalidParameterException;
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| 6 | import java.text.SimpleDateFormat;
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| 7 | import java.util.ArrayList;
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| 8 | import java.util.Date;
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| 9 | import java.util.HashMap;
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| 10 | import java.util.LinkedList;
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| 11 | import java.util.List;
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| 12 | import java.util.Map;
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| 13 |
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| 14 | import de.ugoe.cs.eventbench.data.Event;
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| 15 | import de.ugoe.cs.eventbench.web.data.WebEvent;
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| 16 | import de.ugoe.cs.util.console.Command;
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| 17 | import de.ugoe.cs.util.console.Console;
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| 18 |
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| 19 | public class CMDloadSessionsFromClickstream implements Command {
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| 20 |
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| 21 | @Override
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| 22 | public void run(List<Object> parameters) {
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| 23 | // TODO Auto-generated method stub
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| 24 | if( parameters.size() < 2 ) {
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| 25 | throw new InvalidParameterException();
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| 26 | }
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| 27 | String source = (String) parameters.get(0);
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| 28 |
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| 29 | // TODO needs to be variable
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| 30 | long timeout = 3600000; // 1 hour session-timeout
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| 31 |
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| 32 | try { // TODO dummy try/catch block
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| 33 | File f = new File(source);
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| 34 | FileReader reader = new FileReader(f);
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| 35 | char[] buffer = new char[(int) f.length()];
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| 36 | reader.read(buffer);
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| 37 | reader.close();
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| 38 | String[] lines = (new String(buffer)).split("\n");
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| 39 |
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| 40 | Map<String, List<Integer>> cookieSessionMap = new HashMap<String, List<Integer>>();
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| 41 | int lastId = -1;
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| 42 |
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| 43 | List<List<WebEvent>> sessions = new ArrayList<List<WebEvent>>();
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| 44 |
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| 45 | SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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| 46 |
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| 47 | for( int i=0; i<lines.length ; i++ ) {
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| 48 | String[] values = lines[i].split(" ");
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| 49 |
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| 50 | // use cookie as session identifier
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| 51 | int cookieStart = values[0].lastIndexOf('.');
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| 52 | String cookie = values[0].substring(cookieStart+1);
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| 53 | String dateString = values[1].substring(1)+" "+values[2].substring(0, values[2].length()-1);
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| 54 | long timestamp = dateFormat.parse(dateString).getTime();
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| 55 | String uri = values[3];
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| 56 |
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| 57 | List<Integer> sessionIds = cookieSessionMap.get(cookie);
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| 58 | if( sessionIds==null ) {
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| 59 | sessionIds = new ArrayList<Integer>();
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| 60 | // start new session
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| 61 | sessionIds.add(++lastId);
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| 62 | cookieSessionMap.put(cookie, sessionIds);
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| 63 | sessions.add(new LinkedList<WebEvent>());
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| 64 | }
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| 65 | Integer lastSessionIndex = sessionIds.get(sessionIds.size()-1);
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| 66 | List<WebEvent> lastSession = sessions.get(lastSessionIndex);
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| 67 | long lastEventTime = timestamp;
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| 68 | if( !lastSession.isEmpty() ) {
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| 69 | lastEventTime = lastSession.get(lastSession.size()-1).getTimestamp();
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| 70 | }
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| 71 | if( timestamp-lastEventTime>timeout ) {
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| 72 | sessionIds.add(++lastId);
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| 73 | List<WebEvent> newSession = new LinkedList<WebEvent>();
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| 74 | newSession.add(new WebEvent(uri, timestamp));
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| 75 | sessions.add(newSession);
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| 76 | } else {
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| 77 | lastSession.add(new WebEvent(uri, timestamp));
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| 78 | }
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| 79 | }
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| 80 | Console.traceln(sessions.toString());
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| 81 | } catch(Exception e) {
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| 82 | e.printStackTrace();
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| 83 | }
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| 84 |
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| 85 | }
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| 86 |
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| 87 | @Override
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| 88 | public void help() {
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| 89 | // TODO Auto-generated method stub
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| 90 |
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| 91 | }
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| 92 |
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| 93 | }
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