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package dk.thoerup.traininfoservice; |
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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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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 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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* 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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} |