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package dk.thoerup.traininfoservice; |
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import java.sql.Connection; |
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import java.sql.PreparedStatement; |
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import java.sql.SQLException; |
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import java.util.Date; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import org.apache.commons.lang.time.DurationFormatUtils; |
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import dk.thoerup.traininfoservice.db.DBConnection; |
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public class Statistics { |
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private AtomicInteger stationLookupsLocation = new AtomicInteger(0); |
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private AtomicInteger stationLookupsName = new AtomicInteger(0); |
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private AtomicInteger stationLookupsFavorites = new AtomicInteger(0); |
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private AtomicInteger departureLookups = new AtomicInteger(0); |
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private AtomicInteger timetableLookups = new AtomicInteger(0); |
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private AtomicInteger departureCacheHits = new AtomicInteger(0); |
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private AtomicInteger timetableCacheHits = new AtomicInteger(0); |
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private AtomicInteger departureErrors = new AtomicInteger(0); |
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private AtomicInteger timetableErrors = new AtomicInteger(0); |
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private int old_stationLookupsLocation = 0; |
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private int old_stationLookupsName = 0; |
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private int old_stationLookupsFavorites = 0; |
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private int old_departureLookups = 0; |
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private int old_timetableLookups = 0; |
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private int old_departureCacheHits = 0; |
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private int old_timetableCacheHits = 0; |
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private int old_departureErrors = 0; |
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private int old_timetableErrors = 0; |
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private Date lastReset = new Date(); |
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public void incrementStationLookupsLocation() { |
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stationLookupsLocation.incrementAndGet(); |
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} |
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public void incrementStationLookupsName() { |
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stationLookupsName.incrementAndGet(); |
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} |
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public void incrementStationLookupsFavorites() { |
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stationLookupsFavorites.incrementAndGet(); |
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} |
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public void incrementDepartureLookups() { |
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departureLookups.incrementAndGet(); |
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} |
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public void incrementTimetableLookups() { |
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timetableLookups.incrementAndGet(); |
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} |
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public void incrementDepartureCacheHits() { |
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departureCacheHits.incrementAndGet(); |
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} |
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public void incrementTimetableCacheHits() { |
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timetableCacheHits.incrementAndGet(); |
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} |
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public void incrementDepartureErrors() { |
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departureErrors.incrementAndGet(); |
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} |
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public void incrementTimetableErrors() { |
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timetableErrors.incrementAndGet(); |
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} |
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///////// |
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public int getStationTotals() { |
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return stationLookupsLocation.get() + stationLookupsName.get() + stationLookupsFavorites.get(); |
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} |
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public int getStationLookupsLocation() { |
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return stationLookupsLocation.get(); |
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} |
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public int getStationLookupsName() { |
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return stationLookupsName.get(); |
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} |
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public int getStationLookupsFavorites() { |
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return stationLookupsFavorites.get(); |
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} |
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public int getDepartureLookups() { |
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return departureLookups.get(); |
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} |
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public int getTimetableLookups() { |
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return timetableLookups.get(); |
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} |
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public int getDepartureCacheHits() { |
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return departureCacheHits.get(); |
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} |
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public int getTimetableCacheHits() { |
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return timetableCacheHits.get(); |
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} |
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public int getDepartureErrors() { |
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return departureErrors.get(); |
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} |
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public int getTimetableErrors() { |
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return timetableErrors.get(); |
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} |
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public Date getLastReset() { |
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return lastReset; |
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} |
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/* helper functions */ |
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public String getElapsedAsString() { |
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Date now = new Date(); |
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long duration = (now.getTime() - lastReset.getTime() ); |
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return DurationFormatUtils.formatDuration(duration, "d, HH:mm:ss"); |
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} |
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public double getElapsedDays() { |
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Date now = new Date(); |
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long elapsedMs = now.getTime() - lastReset.getTime(); |
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long elapsedHour = elapsedMs / (60*60*1000); |
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double elapsedDay = ((double)elapsedHour) / 24.0; |
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if (elapsedDay < 1.0) |
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elapsedDay = 1.0; |
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return elapsedDay; |
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} |
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/******* |
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* Save stats to DB |
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*/ |
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public void saveStats() { |
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synchronized(this) { |
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int loc = stationLookupsLocation.get(); |
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int name = stationLookupsName.get(); |
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int fav = stationLookupsFavorites.get(); |
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int departure = departureLookups.get(); |
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int depcache = departureCacheHits.get(); |
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int deperror = departureErrors.get(); |
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int timetable = timetableLookups.get(); |
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int timecache = timetableCacheHits.get(); |
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int timeerror = timetableErrors.get(); |
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int diff_loc = loc - old_stationLookupsLocation; |
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int diff_name = name - old_stationLookupsName; |
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int diff_fav = fav - old_stationLookupsFavorites; |
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int diff_departure = departure - old_departureLookups; |
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int diff_depcache = depcache - old_departureCacheHits; |
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int diff_deperror = deperror - old_departureErrors; |
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int diff_timetable = timetable - old_timetableLookups; |
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int diff_timecache = timecache - old_timetableCacheHits; |
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int diff_timeerror = timeerror - old_timetableErrors; |
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if ( diff_loc != 0 || diff_name != 0 || diff_fav != 0 || |
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diff_departure != 0 || diff_timetable != 0 || diff_depcache != 0 || diff_timecache != 0 || |
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diff_deperror != 0 || diff_timeerror != 0) { |
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try { |
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//System.out.println("Updating ..."); |
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Connection conn = DBConnection.getConnection(); |
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PreparedStatement stmt = conn.prepareStatement("UPDATE trainstatistics SET location=location+?, name=name+?, favorites=favorites+?, departure=departure+?, " + |
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"depcache=depcache+?, deperror=deperror+?, timetable=timetable+?, timecache=timecache+?, timeerror=timeerror+? " + |
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"WHERE statisticsdate=now()::date"); |
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stmt.setInt(1, diff_loc); |
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stmt.setInt(2, diff_name); |
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stmt.setInt(3, diff_fav); |
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stmt.setInt(4, diff_departure); |
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stmt.setInt(5, diff_depcache); |
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stmt.setInt(6, diff_deperror); |
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stmt.setInt(7, diff_timetable); |
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stmt.setInt(8, diff_timecache); |
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stmt.setInt(9, diff_timeerror); |
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int rowcount = stmt.executeUpdate(); |
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stmt.close(); |
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if (rowcount == 0) { |
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//System.out.println("inserting new row ..."); |
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stmt = conn.prepareStatement("INSERT INTO trainstatistics(statisticsdate,location,name,favorites,departure,depcache,deperror,timetable,timecache,timeerror) " + |
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"values (now()::date, ?,?,?,?,?,?,?,?,?)" ); |
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stmt.setInt(1, diff_loc); |
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stmt.setInt(2, diff_name); |
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stmt.setInt(3, diff_fav); |
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stmt.setInt(4, diff_departure); |
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stmt.setInt(5, diff_depcache); |
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stmt.setInt(6, diff_deperror); |
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stmt.setInt(7, diff_timetable); |
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stmt.setInt(8, diff_timecache); |
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stmt.setInt(9, diff_timeerror); |
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stmt.executeUpdate(); |
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} |
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old_stationLookupsLocation = loc; |
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old_stationLookupsName = name; |
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old_stationLookupsFavorites = fav; |
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old_departureLookups = departure; |
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old_departureCacheHits = depcache; |
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old_departureErrors = deperror; |
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old_timetableLookups = timetable; |
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old_timetableCacheHits = timecache; |
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old_timetableErrors = timeerror; |
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conn.close(); |
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} catch (SQLException sqle) { |
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} |
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} |
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} |
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} |
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/******* |
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* Singleton stuff |
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*/ |
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private static Statistics instance = null; |
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private Statistics() { |
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// Exists only to defeat instantiation. |
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} |
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public static Statistics getInstance() { |
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if(instance == null) { |
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instance = new Statistics(); |
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} |
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return instance; |
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} |
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} |