Merge branch 'master' into bug3742

java/com.sap.sailing.datamining/src/com/sap/sailing/datamining/impl/data/BravoFixTrackWithContext.java

@@ -56,7 +56,7 @@ public class BravoFixTrackWithContext implements HasBravoFixTrackContext {
             end = endOfRace;
         }
         return bravoFixTrack.getDistanceSpentFoiling(
-                getRaceOfCompetitorContext().getTrackedRaceContext().getTrackedRace().getTrack(getRaceOfCompetitorContext().getCompetitor()),
-                startOfRace, end);
+                startOfRace,
+                end);
     }
 }

java/com.sap.sailing.datamining/src/com/sap/sailing/datamining/impl/data/TrackedLegOfCompetitorWithContext.java

@@ -96,7 +96,7 @@ public class TrackedLegOfCompetitorWithContext implements HasTrackedLegOfCompeti
     public Distance getDistanceSpentFoiling() {
         return getSomethingForLegTrackingInterval((start, end) -> {
             BravoFixTrack<Competitor> bravoFixTrack = getTrackedLegContext().getTrackedLeg().getTrackedRace().getSensorTrack(getCompetitor(), BravoFixTrack.TRACK_NAME);
-            return bravoFixTrack == null ? Distance.NULL : bravoFixTrack.getDistanceSpentFoiling(getTrackedLegContext().getTrackedLeg().getTrackedRace().getTrack(getCompetitor()), start, end);
+            return bravoFixTrack == null ? Distance.NULL : bravoFixTrack.getDistanceSpentFoiling(start, end);
         });
     }
 

java/com.sap.sailing.domain.common/src/com/sap/sailing/domain/common/DetailType.java

@@ -25,6 +25,8 @@ public enum DetailType implements Serializable {
     CURRENT_HEEL_IN_DEGREES(2,DESCENDING),
     CURRENT_PITCH_IN_DEGREES(2,DESCENDING),
     CURRENT_RIDE_HEIGHT_IN_METERS(2,DESCENDING),
+    CURRENT_DISTANCE_FOILED_IN_METERS(0, DESCENDING),
+    CURRENT_DURATION_FOILED_IN_SECONDS(0, DESCENDING),
     CURRENT_PORT_DAGGERBOARD_RAKE(2,DESCENDING),
     CURRENT_STBD_DAGGERBOARD_RAKE(2,DESCENDING),
     CURRENT_PORT_RUDDER_RAKE(2,DESCENDING),
@@ -64,8 +66,10 @@ public enum DetailType implements Serializable {
     MAXIMUM_SPEED_OVER_GROUND_IN_KNOTS(1, DESCENDING),
     TIME_ON_TIME_FACTOR(4, DESCENDING), TIME_ON_DISTANCE_ALLOWANCE_IN_SECONDS_PER_NAUTICAL_MILE(0, ASCENDING),
     TOTAL_DISTANCE_TRAVELED(0, ASCENDING), TOTAL_AVERAGE_SPEED_OVER_GROUND(2, DESCENDING),
-    TOTAL_TIME_SAILED_IN_SECONDS(1, ASCENDING), RACE_CURRENT_SPEED_OVER_GROUND_IN_KNOTS(2,
-            DESCENDING), RACE_CURRENT_RIDE_HEIGHT_IN_METERS(2, DESCENDING),
+    TOTAL_TIME_SAILED_IN_SECONDS(1, ASCENDING),
+    TOTAL_DURATION_FOILED_IN_SECONDS(0, DESCENDING), TOTAL_DISTANCE_FOILED_IN_METERS(0, DESCENDING),
+    RACE_CURRENT_SPEED_OVER_GROUND_IN_KNOTS(2, DESCENDING), RACE_CURRENT_RIDE_HEIGHT_IN_METERS(2, DESCENDING),
+    RACE_CURRENT_DISTANCE_FOILED_IN_METERS(0, DESCENDING), RACE_CURRENT_DURATION_FOILED_IN_SECONDS(0, DESCENDING),
     RACE_NET_POINTS(2, ASCENDING), REGATTA_NET_POINTS(2, ASCENDING), REGATTA_NET_POINTS_SUM(2, ASCENDING),
     RACE_RATIO_BETWEEN_TIME_SINCE_LAST_POSITION_FIX_AND_AVERAGE_SAMPLING_INTERVAL(1, ASCENDING), RACE_DISTANCE_TO_START_FIVE_SECONDS_BEFORE_RACE_START(1, ASCENDING),
     RACE_SPEED_OVER_GROUND_FIVE_SECONDS_BEFORE_START(2, DESCENDING),

java/com.sap.sailing.domain.common/src/com/sap/sailing/domain/common/dto/LeaderboardEntryDTO.java

@@ -138,7 +138,7 @@ public class LeaderboardEntryDTO implements Serializable {
         return totalPointsCorrected || (reasonForMaxPoints != null && reasonForMaxPoints != MaxPointsReason.NONE);
     }
     
-    public Duration getTimeSailedInMillis() {
+    public Duration getTimeSailed() {
         final Duration result;
         if (legDetails != null) {
             long timeInMilliseconds = 0;
@@ -159,7 +159,7 @@ public class LeaderboardEntryDTO implements Serializable {
         return result;
     }
     
-    public Distance getDistanceTraveledInMeters() {
+    public Distance getDistanceTraveled() {
         Distance result = null;
         if (legDetails != null) {
             for (LegEntryDTO legDetail : legDetails) {
@@ -176,6 +176,47 @@ public class LeaderboardEntryDTO implements Serializable {
         return result;
     }
     
+    public Duration getDurationFoiled() {
+        final Duration result;
+        if (legDetails != null) {
+            Double acc = null;
+            for (LegEntryDTO legDetail : legDetails) {
+                if (legDetail != null) {
+                    if (legDetail.currentDurationFoiledInSeconds != null) {
+                        if (acc == null) {
+                            acc = 0.0;
+                        }
+                        acc += legDetail.currentDurationFoiledInSeconds;
+                    } else {
+                        acc = null;
+                        break;
+                    }
+                }
+            }
+            result = acc == null ? null : new MillisecondsDurationImpl((long) (acc*1000.));
+        } else {
+            result = null;
+        }
+        return result;
+    }
+    
+    public Distance getDistanceFoiled() {
+        Distance result = null;
+        if (legDetails != null) {
+            for (LegEntryDTO legDetail : legDetails) {
+                if (legDetail != null) {
+                    if (legDetail.currentDistanceFoiledInMeters != null) {
+                        if (result == null) {
+                            result = Distance.NULL;
+                        }
+                        result = result.add(new MeterDistance(legDetail.currentDistanceFoiledInMeters));
+                    }
+                }
+            }
+        }
+        return result;
+    }
+    
     public int getOneBasedCurrentLegNumber() {
         int result = 0;
         if (legDetails != null && !legDetails.isEmpty()) {

java/com.sap.sailing.domain.common/src/com/sap/sailing/domain/common/dto/LeaderboardRowDTO.java

@@ -26,6 +26,8 @@ public class LeaderboardRowDTO implements Serializable {
     public Double totalTimeSailedUpwindInSeconds;
     public Double totalTimeSailedReachingInSeconds;
     public Double totalDistanceTraveledInMeters;
+    public Double totalDurationFoiledInSeconds;
+    public Double totalDistanceFoiledInMeters;
     
     @Override
     public int hashCode() {
@@ -38,6 +40,10 @@ public class LeaderboardRowDTO implements Serializable {
                 + ((maximumSpeedOverGroundInKnots == null) ? 0 : maximumSpeedOverGroundInKnots.hashCode());
         result = prime * result
                 + ((totalDistanceTraveledInMeters == null) ? 0 : totalDistanceTraveledInMeters.hashCode());
+        result = prime * result
+                + ((totalDurationFoiledInSeconds == null) ? 0 : totalDurationFoiledInSeconds.hashCode());
+        result = prime * result
+                + ((totalDistanceFoiledInMeters == null) ? 0 : totalDistanceFoiledInMeters.hashCode());
         result = prime * result + ((netPoints == null) ? 0 : netPoints.hashCode());
         result = prime * result
                 + ((totalTimeSailedDownwindInSeconds == null) ? 0 : totalTimeSailedDownwindInSeconds.hashCode());
@@ -87,6 +93,16 @@ public class LeaderboardRowDTO implements Serializable {
                 return false;
         } else if (!totalDistanceTraveledInMeters.equals(other.totalDistanceTraveledInMeters))
             return false;
+        if (totalDurationFoiledInSeconds == null) {
+            if (other.totalDurationFoiledInSeconds != null)
+                return false;
+        } else if (!totalDurationFoiledInSeconds.equals(other.totalDurationFoiledInSeconds))
+            return false;
+        if (totalDistanceFoiledInMeters == null) {
+            if (other.totalDistanceFoiledInMeters != null)
+                return false;
+        } else if (!totalDistanceFoiledInMeters.equals(other.totalDistanceFoiledInMeters))
+            return false;
         if (netPoints == null) {
             if (other.netPoints != null)
                 return false;
@@ -120,11 +136,11 @@ public class LeaderboardRowDTO implements Serializable {
         return true;
     }
     
-    public Distance getDistanceTraveledInMeters(String raceColumnName) {
+    public Distance getDistanceTraveled(String raceColumnName) {
         final Distance result;
         LeaderboardEntryDTO fieldsForRace = fieldsByRaceColumnName.get(raceColumnName);
         if (fieldsForRace != null) {
-            result = fieldsForRace.getDistanceTraveledInMeters();
+            result = fieldsForRace.getDistanceTraveled();
         } else {
             result = null;
         }
@@ -135,7 +151,29 @@ public class LeaderboardRowDTO implements Serializable {
         final Duration result;
         LeaderboardEntryDTO fieldsForRace = fieldsByRaceColumnName.get(raceColumnName);
         if (fieldsForRace != null) {
-            result = fieldsForRace.getTimeSailedInMillis();
+            result = fieldsForRace.getTimeSailed();
+        } else {
+            result = null;
+        }
+        return result;
+    }
+    
+    public Distance getDistanceFoiled(String raceColumnName) {
+        final Distance result;
+        LeaderboardEntryDTO fieldsForRace = fieldsByRaceColumnName.get(raceColumnName);
+        if (fieldsForRace != null) {
+            result = fieldsForRace.getDistanceFoiled();
+        } else {
+            result = null;
+        }
+        return result;
+    }
+    
+    public Duration getDurationFoiled(String raceColumnName) {
+        final Duration result;
+        LeaderboardEntryDTO fieldsForRace = fieldsByRaceColumnName.get(raceColumnName);
+        if (fieldsForRace != null) {
+            result = fieldsForRace.getDurationFoiled();
         } else {
             result = null;
         }

java/com.sap.sailing.domain.common/src/com/sap/sailing/domain/common/dto/LegEntryDTO.java

@@ -44,6 +44,8 @@ public class LegEntryDTO implements Serializable {
 
     public Double currentHeelInDegrees;
     public Double currentPitchInDegrees;
+    public Double currentDistanceFoiledInMeters;
+    public Double currentDurationFoiledInSeconds;
     
     /**
      * If the competitor has already finished the leg at the time point for which this entry was created, contains the
@@ -81,6 +83,8 @@ public class LegEntryDTO implements Serializable {
         result = prime * result + ((currentHeelInDegrees == null) ? 0 : currentHeelInDegrees.hashCode());
         result = prime * result + ((currentPitchInDegrees == null) ? 0 : currentPitchInDegrees.hashCode());
         result = prime * result + ((currentRideHeightInMeters == null) ? 0 : currentRideHeightInMeters.hashCode());
+        result = prime * result + ((currentDurationFoiledInSeconds == null) ? 0 : currentDurationFoiledInSeconds.hashCode());
+        result = prime * result + ((currentDistanceFoiledInMeters == null) ? 0 : currentDistanceFoiledInMeters.hashCode());
         result = prime * result
                 + ((currentSpeedOverGroundInKnots == null) ? 0 : currentSpeedOverGroundInKnots.hashCode());
         result = prime * result + ((distanceTraveledInMeters == null) ? 0 : distanceTraveledInMeters.hashCode());
@@ -150,6 +154,16 @@ public class LegEntryDTO implements Serializable {
                 return false;
         } else if (!currentRideHeightInMeters.equals(other.currentRideHeightInMeters))
             return false;
+        if (currentDurationFoiledInSeconds == null) {
+            if (other.currentDurationFoiledInSeconds != null)
+                return false;
+        } else if (!currentDurationFoiledInSeconds.equals(other.currentDurationFoiledInSeconds))
+            return false;
+        if (currentDistanceFoiledInMeters == null) {
+            if (other.currentDistanceFoiledInMeters != null)
+                return false;
+        } else if (!currentDistanceFoiledInMeters.equals(other.currentDistanceFoiledInMeters))
+            return false;
         if (currentSpeedOverGroundInKnots == null) {
             if (other.currentSpeedOverGroundInKnots != null)
                 return false;

java/com.sap.sailing.domain.racelogtrackingadapter.test/src/com/sap/sailing/domain/racelogtracking/test/impl/SensorFixStoreAndLoadTest.java

@@ -56,6 +56,8 @@ import com.sap.sailing.domain.base.impl.RegattaImpl;
 import com.sap.sailing.domain.base.impl.WaypointImpl;
 import com.sap.sailing.domain.common.DeviceIdentifier;
 import com.sap.sailing.domain.common.Distance;
+import com.sap.sailing.domain.common.Position;
+import com.sap.sailing.domain.common.SpeedWithBearing;
 import com.sap.sailing.domain.common.TrackedRaceStatusEnum;
 import com.sap.sailing.domain.common.impl.DegreeBearingImpl;
 import com.sap.sailing.domain.common.impl.DegreePosition;
@@ -81,6 +83,7 @@ import com.sap.sailing.domain.racelogtracking.impl.fixtracker.FixLoaderAndTracke
 import com.sap.sailing.domain.ranking.OneDesignRankingMetric;
 import com.sap.sailing.domain.regattalog.impl.EmptyRegattaLogStore;
 import com.sap.sailing.domain.tracking.BravoFixTrack;
+import com.sap.sailing.domain.tracking.DynamicGPSFixTrack;
 import com.sap.sailing.domain.tracking.DynamicSensorFixTrack;
 import com.sap.sailing.domain.tracking.DynamicTrack;
 import com.sap.sailing.domain.tracking.DynamicTrackedRace;
@@ -92,6 +95,7 @@ import com.sap.sailing.domain.tracking.impl.DynamicTrackedRaceImpl;
 import com.sap.sailing.domain.tracking.impl.DynamicTrackedRegattaImpl;
 import com.sap.sailing.domain.tracking.impl.EmptyWindStore;
 import com.sap.sailing.domain.tracking.impl.SensorFixTrackImpl;
+import com.sap.sse.common.Duration;
 import com.sap.sse.common.TimePoint;
 import com.sap.sse.common.Timed;
 import com.sap.sse.common.Util.Pair;
@@ -178,18 +182,12 @@ public class SensorFixStoreAndLoadTest {
     public void testLoadAlreadyAddedFixes() throws InterruptedException {
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
-
         addBravoFixes();
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         trackedRace.waitForLoadingToFinish();
-
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 2);
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -197,18 +195,12 @@ public class SensorFixStoreAndLoadTest {
     public void testAddFixesWhileTracking() throws InterruptedException {
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         addBravoFixes();
-
         trackedRace.waitForLoadingToFinish();
-
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 2);
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -216,18 +208,12 @@ public class SensorFixStoreAndLoadTest {
     public void testNoFixesAreLoadedIfNoStoredFixIsInTimeRange() throws InterruptedException {
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(AFTER_LAST_FIX), new MillisecondsTimePoint(END_OF_TRACKING)));
-
         addBravoFixes();
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         trackedRace.waitForLoadingToFinish();
-
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 0);
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -235,18 +221,12 @@ public class SensorFixStoreAndLoadTest {
     public void testFixesNotInMappedTimeRangeAreIgnoredWhileTracking() throws InterruptedException {
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(AFTER_LAST_FIX), new MillisecondsTimePoint(END_OF_TRACKING)));
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         addBravoFixes();
-
         trackedRace.waitForLoadingToFinish();
-
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 0);
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -254,18 +234,12 @@ public class SensorFixStoreAndLoadTest {
     public void testCompetitorWithoutMappingHasNoTrack() throws InterruptedException {
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
-
         addBravoFixes();
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         trackedRace.waitForLoadingToFinish();
-
         assertNull(trackedRace.getSensorTrack(comp2, BravoFixTrack.TRACK_NAME));
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -275,19 +249,13 @@ public class SensorFixStoreAndLoadTest {
                 device, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp2,
                 device, new MillisecondsTimePoint(MID_OF_TRACKING + 1), new MillisecondsTimePoint(END_OF_TRACKING)));
-
         addBravoFixes();
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         trackedRace.waitForLoadingToFinish();
-
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 2);
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp2, BravoFixTrack.TRACK_NAME), 1);
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -297,18 +265,12 @@ public class SensorFixStoreAndLoadTest {
                 device, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(MID_OF_TRACKING + 1), new MillisecondsTimePoint(END_OF_TRACKING)));
-
         addBravoFixes();
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         trackedRace.waitForLoadingToFinish();
-
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 3);
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -319,18 +281,12 @@ public class SensorFixStoreAndLoadTest {
                 new MillisecondsTimePoint(MID_OF_TRACKING));
         regattaLog.add(mappingEvent);
         regattaLog.add(new RegattaLogRevokeEventImpl(author, mappingEvent, "Test purposes"));
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         addBravoFixes();
-
         trackedRace.waitForLoadingToFinish();
-
         assertNull(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME));
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
     
@@ -342,23 +298,16 @@ public class SensorFixStoreAndLoadTest {
                 new MillisecondsTimePoint(END_OF_TRACKING));
         regattaLog.add(mappingEvent);
         regattaLog.add(new RegattaLogRevokeEventImpl(author, mappingEvent, "Test purposes"));
-        
         // non-revoked mapping timestamp 100-200
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
-        
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-        
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-        
         addBravoFixes();
-        
         trackedRace.waitForLoadingToFinish();
-        
         // Only Fixes from 100 to 200 may be included
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 2);
-        
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -371,25 +320,16 @@ public class SensorFixStoreAndLoadTest {
         RegattaLogCloseOpenEndedDeviceMappingEventImpl closeEvent = new RegattaLogCloseOpenEndedDeviceMappingEventImpl(
                 new MillisecondsTimePoint(4), author, mappingEventId, new MillisecondsTimePoint(MID_OF_TRACKING));
         regattaLog.add(closeEvent);
-
         addBravoFixes();
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         trackedRace.waitForLoadingToFinish();
-
         BravoFixTrack<Competitor> bravoFixTrack = trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME);
-
         testNumberOfRawFixes(bravoFixTrack, 2);
-
         regattaLog.add(new RegattaLogRevokeEventImpl(author, closeEvent, "Test purposes"));
-
         trackedRace.waitForLoadingToFinish();
         testNumberOfRawFixes(bravoFixTrack, 3);
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -414,20 +354,14 @@ public class SensorFixStoreAndLoadTest {
                 deviceTest, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
-        
         addTestFixes();
         addBravoFixes();
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         trackedRace.waitForLoadingToFinish();
-
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 2);
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, TestFixTrackImpl.TRACK_NAME), 1);
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
     
@@ -437,21 +371,14 @@ public class SensorFixStoreAndLoadTest {
                 deviceTest, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(MID_OF_TRACKING)));
-        
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         addTestFixes();
         addBravoFixes();
-        
         trackedRace.waitForLoadingToFinish();
-
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, TestFixTrackImpl.TRACK_NAME), 1);
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 2);
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
     
@@ -461,18 +388,12 @@ public class SensorFixStoreAndLoadTest {
                 deviceTest, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(END_OF_TRACKING)));
         regattaLog.add(new RegattaLogDeviceCompetitorBravoMappingEventImpl(new MillisecondsTimePoint(3), author, comp,
                 device, new MillisecondsTimePoint(START_OF_TRACKING), new MillisecondsTimePoint(END_OF_TRACKING)));
-        
-
         FixLoaderAndTracker fixLoaderAndTracker = createFixLoaderAndTracker();
-
         trackedRace.attachRaceLog(raceLog);
         trackedRace.attachRegattaLog(regattaLog);
-
         addTestFixes();
         addBravoFixes();
-        
         trackedRace.waitForLoadingToFinish();
-
         BravoFixTrack<Competitor> bravoFixTrack = trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME);
         assertEquals(FIX_RIDE_HEIGHT,
                 bravoFixTrack.getFirstFixAtOrAfter(new MillisecondsTimePoint(FIX_TIMESTAMP)).getRideHeight());
@@ -480,11 +401,9 @@ public class SensorFixStoreAndLoadTest {
                 bravoFixTrack.getFirstFixAtOrAfter(new MillisecondsTimePoint(FIX_TIMESTAMP2)).getRideHeight());
         assertEquals(FIX_RIDE_HEIGHT3,
                 bravoFixTrack.getFirstFixAtOrAfter(new MillisecondsTimePoint(FIX_TIMESTAMP3)).getRideHeight());
-        
         TestFixTrackImpl<Competitor> testFixTrack = trackedRace.getSensorTrack(comp, TestFixTrackImpl.TRACK_NAME);
         assertEquals(FIX_TEST_VALUE,
                 testFixTrack.getFirstFixAtOrAfter(new MillisecondsTimePoint(FIX_TIMESTAMP)).getTestValue());
-
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
     }
 
@@ -501,7 +420,6 @@ public class SensorFixStoreAndLoadTest {
     }
 
     private FixLoaderAndTracker createFixLoaderAndTracker() {
-        
         return new FixLoaderAndTracker(trackedRace, store, new SensorFixMapperFactory() {
             private TestDataFixMapper testDataFixMapper = new TestDataFixMapper();
             private BravoDataFixMapper bravoDataFixMapper = new BravoDataFixMapper();
@@ -747,6 +665,50 @@ public class SensorFixStoreAndLoadTest {
         // only the initial 3 fixes are available
         testNumberOfRawFixes(trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME), 3);
         fixLoaderAndTracker.stop(true, /* willBeRemoved */ false);
+        final DynamicGPSFixTrack<Competitor, GPSFixMoving> gpsFixTrack = trackedRace.getTrack(comp);
+        final DegreePosition pos1 = new DegreePosition(0, 0);
+        final DegreeBearingImpl course = new DegreeBearingImpl(0);
+        final KnotSpeedWithBearingImpl speed = new KnotSpeedWithBearingImpl(10, course);
+        final MillisecondsTimePoint timePoint = new MillisecondsTimePoint(FIX_TIMESTAMP);
+        final MillisecondsTimePoint timePoint2 = new MillisecondsTimePoint(FIX_TIMESTAMP2);
+        final MillisecondsTimePoint timePoint3 = new MillisecondsTimePoint(FIX_TIMESTAMP3);
+        final TimePoint timePointBetween2And3 = new MillisecondsTimePoint((FIX_TIMESTAMP2+FIX_TIMESTAMP3)/2);
+        final GPSFixMoving fix1 = new GPSFixMovingImpl(pos1, timePoint, speed);
+        final Position pos2 = pos1.translateGreatCircle(course, speed.travel(timePoint.until(timePoint2)));
+        final GPSFixMoving fix2 = new GPSFixMovingImpl(pos2, timePoint2, speed);
+        final Position pos3 = pos2.translateGreatCircle(course, speed.travel(timePoint2.until(timePoint3)));
+        final GPSFixMoving fix3 = new GPSFixMovingImpl(pos3, timePoint3, speed);
+        gpsFixTrack.add(fix1);
+        gpsFixTrack.add(fix2);
+        gpsFixTrack.add(fix3);
+        final BravoFixTrack<Competitor> bravoFixTrack = trackedRace.getSensorTrack(comp, BravoFixTrack.TRACK_NAME);
+        final Distance foilingDistance = bravoFixTrack.getDistanceSpentFoiling(timePoint, timePoint3);
+        final Distance distanceTraveled = gpsFixTrack.getDistanceTraveled(timePoint, timePoint3);
+        assertEquals(distanceTraveled.getMeters(), foilingDistance.getMeters(), 0.001);
+        final Duration foilingDuration = bravoFixTrack.getTimeSpentFoiling(timePoint, timePoint3);
+        assertEquals(timePoint.until(timePoint3).asMillis(), foilingDuration.asMillis());
+        
+        // now insert a GPS fix which leads to an extended distance traveled as it is not exactly on the previous track
+        final DegreeBearingImpl temporaryCourse = new DegreeBearingImpl(90);
+        final GPSFixMoving fixBetween2And3 = new GPSFixMovingImpl(
+                pos2.translateGreatCircle(temporaryCourse, speed.add(new KnotSpeedWithBearingImpl(5, temporaryCourse)).travel(timePoint2.until(timePointBetween2And3))),
+                timePointBetween2And3, speed);
+        gpsFixTrack.add(fixBetween2And3);
+        final Distance distanceTraveledDifferently = gpsFixTrack.getDistanceTraveled(timePoint, timePoint3);
+        assertTrue(distanceTraveledDifferently.compareTo(distanceTraveled) > 0);
+        final Distance foilingDistanceDifferent = bravoFixTrack.getDistanceSpentFoiling(timePoint, timePoint3);
+        assertEquals(distanceTraveledDifferently.getMeters(), foilingDistanceDifferent.getMeters(), 0.001);
+        
+        // now overwrite fix3 by a new one with increased speed, therefore extended distance:
+        final SpeedWithBearing doubledSpeed = speed.add(speed);
+        final GPSFixMoving fix3Faster = new GPSFixMovingImpl(
+                pos2.translateGreatCircle(course, doubledSpeed.travel(timePoint2.until(timePoint3))),
+                timePoint3, doubledSpeed);
+        gpsFixTrack.add(fix3Faster, /* replace */ true);
+        final Distance distanceTraveledFaster = gpsFixTrack.getDistanceTraveled(timePoint, timePoint3);
+        assertTrue(distanceTraveledFaster.compareTo(distanceTraveled) > 0);
+        final Distance foilingDistanceFaster = bravoFixTrack.getDistanceSpentFoiling(timePoint, timePoint3);
+        assertEquals(distanceTraveledFaster.getMeters(), foilingDistanceFaster.getMeters(), 0.001);
     }
     
     @Test

java/com.sap.sailing.domain.racelogtrackingadapter/src/com/sap/sailing/domain/racelogtracking/impl/BravoDataFixMapper.java

@@ -20,7 +20,8 @@ public class BravoDataFixMapper implements SensorFixMapper<BravoFix, DynamicSens
     @Override
     public DynamicSensorFixTrack<Competitor, BravoFix> getTrack(DynamicTrackedRace race, Competitor key) {
         return race.getOrCreateSensorTrack(key, BravoFixTrack.TRACK_NAME, 
-                () -> new BravoFixTrackImpl<Competitor>(key, BravoFixTrack.TRACK_NAME, /* hasExtendedFixes */ false));
+                () -> new BravoFixTrackImpl<Competitor>(key, BravoFixTrack.TRACK_NAME, /* hasExtendedFixes */ false,
+                        race.getTrack(key)));
     }
     
     @Override

java/com.sap.sailing.domain.racelogtrackingadapter/src/com/sap/sailing/domain/racelogtracking/impl/BravoExtendedDataFixMapper.java

@@ -21,7 +21,8 @@ public class BravoExtendedDataFixMapper implements SensorFixMapper<BravoFix, Dyn
     @Override
     public DynamicSensorFixTrack<Competitor, BravoFix> getTrack(DynamicTrackedRace race, Competitor key) {
         return race.getOrCreateSensorTrack(key, BravoFixTrack.TRACK_NAME, 
-                () -> new BravoFixTrackImpl<Competitor>(key, BravoFixTrack.TRACK_NAME, /* hasExtendedFixes */ true));
+                () -> new BravoFixTrackImpl<Competitor>(key, BravoFixTrack.TRACK_NAME, /* hasExtendedFixes */ true,
+                        race.getTrack(key)));
     }
     
     @Override

java/com.sap.sailing.domain.racelogtrackingadapter/src/com/sap/sailing/domain/racelogtracking/impl/ExpeditionExtendedDataFixMapper.java

@@ -25,7 +25,8 @@ public class ExpeditionExtendedDataFixMapper implements SensorFixMapper<BravoFix
     @Override
     public DynamicSensorFixTrack<Competitor, BravoFix> getTrack(DynamicTrackedRace race, Competitor key) {
         return race.getOrCreateSensorTrack(key, BravoFixTrack.TRACK_NAME, 
-                () -> new BravoFixTrackImpl<Competitor>(key, BravoFixTrack.TRACK_NAME, /* hasExtendedFixes */ true));
+                () -> new BravoFixTrackImpl<Competitor>(key, BravoFixTrack.TRACK_NAME, /* hasExtendedFixes */ true,
+                        race.getTrack(key)));
     }
     
     @Override

java/com.sap.sailing.domain.shared.android/src/com/sap/sailing/domain/abstractlog/race/impl/NoAddingRaceLogWrapper.java

@@ -15,6 +15,7 @@ import com.sap.sailing.domain.abstractlog.race.RaceLog;
 import com.sap.sailing.domain.abstractlog.race.RaceLogEvent;
 import com.sap.sailing.domain.abstractlog.race.RaceLogEventVisitor;
 import com.sap.sailing.domain.common.abstractlog.NotRevokableException;
+import com.sap.sailing.domain.tracking.impl.TimeRangeCache;
 import com.sap.sse.common.Duration;
 import com.sap.sse.common.TimePoint;
 import com.sap.sse.common.Util.Function;
@@ -263,4 +264,11 @@ public class NoAddingRaceLogWrapper implements RaceLog {
     public int size() {
         return innerRaceLog.size();
     }
+
+    @Override
+    public <T> T getValueSum(TimePoint from, TimePoint to, T nullElement,
+            com.sap.sailing.domain.tracking.Track.Adder<T> adder, TimeRangeCache<T> cache,
+            com.sap.sailing.domain.tracking.Track.TimeRangeValueCalculator<T> valueCalculator) {
+        return innerRaceLog.getValueSum(from, to, nullElement, adder, cache, valueCalculator);
+    }
 }

java/com.sap.sailing.domain.shared.android/src/com/sap/sailing/domain/tracking/Track.java

@@ -5,6 +5,7 @@ import java.util.Iterator;
 import java.util.concurrent.locks.ReadWriteLock;
 
 import com.sap.sailing.domain.common.tracking.GPSFixMoving;
+import com.sap.sailing.domain.tracking.impl.TimeRangeCache;
 import com.sap.sse.common.Duration;
 import com.sap.sse.common.TimePoint;
 import com.sap.sse.common.Timed;
@@ -31,6 +32,29 @@ import com.sap.sse.common.scalablevalue.ScalableValue;
  * @author Axel Uhl (d043530)
  */
 public interface Track<FixType extends Timed> extends Serializable {
+    /**
+     * An adding function to be used together with {@link Track#getValueSum(TimePoint, TimePoint, Object, Adder, TimeRangeCache, TimeRangeValueCalculator)}.
+     * 
+     * @author Axel Uhl (D043530)
+     *
+     * @param <T>
+     */
+    static interface Adder<T> {
+        /**
+         * Adds two elements of type {@code T}. Neither argument must be {@code null}.
+         */
+        T add(T t1, T t2);
+    }
+    
+    static interface TimeRangeValueCalculator<T> {
+        /**
+         * Calculates a value for fixes across a time range. When the method is called,
+         * a read lock will previously have been {@link Track#lockForRead obtained} before,
+         * so an implementing class does not need to worry about acquiring the lock.
+         */
+        T calculate(TimePoint from, TimePoint to);
+    }
+    
     /**
      * Locks this track for reading by the calling thread. If the thread already holds the lock for this track,
      * the hold count will be incremented. Make sure to call {@link #unlockAfterRead()} in a <code>finally</code>
@@ -209,6 +233,8 @@ public interface Track<FixType extends Timed> extends Serializable {
      */
     Duration getAverageIntervalBetweenRawFixes();
     
+    <T> T getValueSum(TimePoint from, TimePoint to, T nullElement, Adder<T> adder, TimeRangeCache<T> cache, TimeRangeValueCalculator<T> valueCalculator);
+    
     /**
      * @return the number of raw fixes contained in the Track.
      */
@@ -218,4 +244,5 @@ public interface Track<FixType extends Timed> extends Serializable {
      * Tells whether the collection of {@link #getRawFixes() raw fixes} (no outliers removed) is empty
      */
     boolean isEmpty();
+
 }

java/com.sap.sailing.domain.shared.android/src/com/sap/sailing/domain/tracking/impl/TimeRangeCache.java

@@ -0,0 +1,221 @@
+package com.sap.sailing.domain.tracking.impl;
+
+import java.util.Comparator;
+import java.util.Iterator;
+import java.util.LinkedHashMap;
+import java.util.Map.Entry;
+import java.util.NavigableSet;
+
+import com.sap.sse.common.TimePoint;
+import com.sap.sse.common.Util;
+import com.sap.sse.common.Util.Pair;
+import com.sap.sse.concurrent.LockUtil;
+import com.sap.sse.concurrent.NamedReentrantReadWriteLock;
+import com.sap.sse.util.impl.ArrayListNavigableSet;
+
+/**
+ * This cache looks "backwards." It contains pairs whose first component represents a <code>to</code> parameter used in
+ * a calculation for a time range. It is ordered by this component. The second component is a navigable, ordered set of
+ * pairs where the first pair component represents a <code>from</code> parameter used in the calculation's time range
+ * and the second pair component represents the result of the calculation for this parameter combination.
+ * <p>
+ * 
+ * For implementation efficiency in combination with using an {@link ArrayListNavigableSet} for the values and in order
+ * to be able to efficiently extend a cache entry for a single <code>to</code> fix, the navigable sets containing the
+ * <code>from</code> fixes and results are ordered such that earlier fixes come later in the set. This way, extending
+ * the cache entry for a <code>to</code> fix to an earlier <code>from</code> fix only requires appending to the set.
+ * <p>
+ * 
+ * <b>Invalidation</b>: When a new fix is added to the track, all cache entries for fixes at or later than the new fix's
+ * time point are removed from this cache. Additionally, the fix insertion may have an impact on the
+ * {@link #getEarliestFromAndResultAtOrAfterFrom(TimePoint, TimePoint) previous fix's} validity (track smoothing) and
+ * therefore on its selection for result aggregation. Therefore, if fix addition turned the previous fix invalid, the
+ * cache entries for the time points at or after the previous fix also need to be removed.
+ * <p>
+ * 
+ * <b>Cache use</b>: When a result across a time range is to be computed the calculating method should first look for a
+ * cache entry for the <code>to</code> parameter. If one is found, the earliest entry in the navigable set for the
+ * navigable set of <code>from</code> and result values that is at or after the requested <code>from</code> time point
+ * is determined. If such an entry exists, the result is remembered and the algorithm is repeated recursively, using the
+ * <code>from</code> value found in the cache as the new <code>to</code> value, and the <code>from</code> value
+ * originally passed to the calculating method as <code>from</code> again. If no entry is found in the cache entry for
+ * <code>to</code> that is at or after the requested <code>from</code> time, the result has to be computed "from
+ * scratch."
+ * <p>
+ * 
+ * If a cache entry for <code>to</code> is not found, the latest cache entry before it is looked up. If one is found,
+ * the result for the time range between the <code>to</code> time point requested and the <code>to</code> time point
+ * found in the cache is computed by iterating the smoothened fixes for this interval. If none is found, the result is
+ * computed by iterating backwards all the way to <code>from</code>.
+ * <p>
+ * 
+ * Once the calculating method has computed its value, it should {@link #cache(TimePoint, TimePoint, Object) add} the
+ * result to the cache.
+ * 
+ * @author Axel Uhl (D043530)
+ */
+public class TimeRangeCache<T> {
+    public static final int MAX_SIZE = 100;
+    
+    private final NavigableSet<Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>>> timeRangeCache;
+    
+    /**
+     * The cache is to have limited size. Eviction shall happen based on a least-recently-used strategy. Usage is
+     * defined as having been returned by {@link #getEarliestFromAndResultAtOrAfterFrom(TimePoint, TimePoint)} or
+     * having been added by {@link #cache(TimePoint, TimePoint, Object)}.
+     * <p>
+     * 
+     * When an eldest entry is asked to be expunged from this map and the map has more than {@link #MAX_SIZE} elements,
+     * the expunging will be admitted, and the entry is removed from the {@link #timeRangeCache} core structure. Reading
+     * and writing this structure must happen under the {@link #lock write lock} because also reading the linked hash
+     * map that counts access as "use" has a modifying effect on its internal structures.
+     * <p>
+     * 
+     * The key pairs are from/to pairs. Note that this is in some sense "the opposite direction" compared to the
+     * alignment of the {@link #timeRangeCache} structure which has as its outer keys the "to" time point.<p>
+     * 
+     * Read access is to be <code>synchronized<code> using this field's mutex; write access only happens under the
+     * {@link #lock write lock} and therefore will have no contenders.
+     */
+    private final LinkedHashMap<Util.Pair<TimePoint, TimePoint>, Void> lruCache;
+    
+    private final NamedReentrantReadWriteLock lock;
+    
+    private static final Comparator<Util.Pair<TimePoint, ?>> timePointInPairComparator = new Comparator<Util.Pair<TimePoint, ?>>() {
+        @Override
+        public int compare(Util.Pair<TimePoint, ?> o1, Util.Pair<TimePoint, ?> o2) {
+            return o1.getA().compareTo(o2.getA());
+        }
+    };
+
+    public TimeRangeCache(String nameForLockLogging) {
+        lock = new NamedReentrantReadWriteLock("lock for TimeRangeCache for "+nameForLockLogging, /* fair */ true);
+        this.timeRangeCache = new ArrayListNavigableSet<Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>>>(timePointInPairComparator);
+        this.lruCache = new LinkedHashMap<Util.Pair<TimePoint, TimePoint>, Void>(/* initial capacity */ 10, /* load factor */ 0.75f,
+                /* access-based ordering */ true) {
+            private static final long serialVersionUID = -6568235517111733193L;
+
+            @Override
+            protected boolean removeEldestEntry(Entry<Pair<TimePoint, TimePoint>, Void> eldest) {
+                final boolean expunge = size() > MAX_SIZE;
+                if (expunge) {
+                    removeCacheEntry(eldest.getKey().getA(), eldest.getKey().getB());
+                }
+                return expunge;
+            }
+        };
+    }
+    
+    public int size() {
+        return lruCache.size();
+    }
+    
+    private void removeCacheEntry(TimePoint from, TimePoint to) {
+        assert lock.getWriteHoldCount() == 1; // we can be sure we are alone here; this only happens when adding a new entry, holding the write lock
+        Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>> entryForTo = timeRangeCache.floor(createDummy(to));
+        if (entryForTo.getA().equals(to)) {
+            Pair<TimePoint, T> entryForFrom = entryForTo.getB().ceiling(new Util.Pair<TimePoint, T>(from, null));
+            if (entryForFrom.getA().equals(from)) {
+                entryForTo.getB().remove(entryForFrom);
+                if (entryForTo.getB().isEmpty()) {
+                    timeRangeCache.remove(entryForTo);
+                }
+            }
+        }
+    }
+    
+    /**
+     * Looks up the entry closest to but no later than <code>to</code>. If not found, <code>null</code> is returned. If
+     * found, the earliest pair of from/result that is at or after <code>from</code> will be returned, together with
+     * the <code>to</code> value of the entry. If there is no entry that is at or after <code>from</code>,
+     * <code>null</code> is returned.
+     */
+    public Util.Pair<TimePoint, Util.Pair<TimePoint, T>> getEarliestFromAndResultAtOrAfterFrom(TimePoint from, TimePoint to) {
+        LockUtil.lockForRead(lock);
+        try {
+            Util.Pair<TimePoint, Util.Pair<TimePoint, T>> result = null;
+            Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>> entryForTo = timeRangeCache.floor(createDummy(to));
+            if (entryForTo != null) {
+                final Util.Pair<TimePoint, T> fromCeiling = entryForTo.getB().ceiling(new Util.Pair<TimePoint, T>(from, null));
+                if (fromCeiling != null) {
+                    result = new Util.Pair<TimePoint, Util.Pair<TimePoint, T>>(entryForTo.getA(), fromCeiling);
+                }
+            }
+            // no writer can be active because we're holding the read lock; read access on the lruCache is synchronized using
+            // the lruCache's mutex; this is necessary because we're using access-based LRU pinging where even getting an entry
+            // modifies the internal parts of the data structure which is not thread safe.
+            synchronized (lruCache) {
+                lruCache.get(new Util.Pair<TimePoint, TimePoint>(from, to));
+            }
+            return result;
+        } finally {
+            LockUtil.unlockAfterRead(lock);
+        }
+    }
+    
+    /**
+     * Removes all cache entries that have a <code>to</code> time point that is at or after <code>timePoint</code>.
+     */
+    public void invalidateAllAtOrLaterThan(TimePoint timePoint) {
+        LockUtil.lockForWrite(lock);
+        try {
+            Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>> dummy = createDummy(timePoint);
+            NavigableSet<Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>>> toRemove = timeRangeCache.tailSet(dummy, /* inclusive */ true);
+            for (Iterator<Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>>> i=toRemove.iterator(); i.hasNext(); ) {
+                Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>> entryToRemove = i.next();
+                assert entryToRemove.getA().compareTo(timePoint) >= 0;
+                for (Pair<TimePoint, T> fromAndResult : entryToRemove.getB()) {
+                    lruCache.remove(new Util.Pair<>(fromAndResult.getA(), entryToRemove.getA()));
+                }
+                i.remove();
+            }
+        } finally {
+            LockUtil.unlockAfterWrite(lock);
+        }
+    }
+    
+    private NavigableSet<Util.Pair<TimePoint, T>> getEntryForTo(TimePoint to) {
+        NavigableSet<Util.Pair<TimePoint, T>> result = null;
+        Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>> dummyForTo = createDummy(to);
+        Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>> entryForTo = timeRangeCache.floor(dummyForTo);
+        if (entryForTo != null && entryForTo.getA().equals(to)) {
+            result = entryForTo.getB();
+        }
+        return result;
+    }
+    
+    public void cache(TimePoint from, TimePoint to, T result) {
+        LockUtil.lockForWrite(lock);
+        try {
+            NavigableSet<Util.Pair<TimePoint, T>> entryForTo = getEntryForTo(to);
+            if (entryForTo == null) {
+                entryForTo = new ArrayListNavigableSet<Util.Pair<TimePoint, T>>(timePointInPairComparator);
+                Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>> pairForTo = new Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>>(
+                        to, entryForTo);
+                timeRangeCache.add(pairForTo);
+            }
+            entryForTo.add(new Util.Pair<TimePoint, T>(from, result));
+            lruCache.put(new Util.Pair<TimePoint, TimePoint>(from, to), null);
+        } finally {
+            LockUtil.unlockAfterWrite(lock);
+        }
+    }
+    
+    private Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>> createDummy(TimePoint to) {
+        return new Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, T>>>(to, null);
+    }
+
+    /**
+     * Removes all contents from this cache
+     */
+    public void clear() {
+        LockUtil.lockForWrite(lock);
+        try {
+            timeRangeCache.clear();
+            lruCache.clear();
+        } finally {
+            LockUtil.unlockAfterWrite(lock);
+        }
+
+    }
+}

java/com.sap.sailing.domain.shared.android/src/com/sap/sailing/domain/tracking/impl/TrackImpl.java

@@ -11,6 +11,7 @@ import com.sap.sailing.domain.tracking.Track;
 import com.sap.sse.common.Duration;
 import com.sap.sse.common.TimePoint;
 import com.sap.sse.common.Timed;
+import com.sap.sse.common.Util;
 import com.sap.sse.common.Util.Function;
 import com.sap.sse.common.Util.Pair;
 import com.sap.sse.common.scalablevalue.ScalableValue;
@@ -459,6 +460,60 @@ public class TrackImpl<FixType extends Timed> implements Track<FixType> {
         }
     }
     
+    @Override
+    public <T> T getValueSum(TimePoint from, TimePoint to, T nullElement, Adder<T> adder, TimeRangeCache<T> cache, TimeRangeValueCalculator<T> valueCalculator) {
+        return getValueSumRecursively(from, to, /* recursionLevel */ 0, nullElement, adder, cache, valueCalculator);
+    }
+    
+    private <T> T getValueSumRecursively(TimePoint from, TimePoint to, int recursionDepth, T nullElement,
+            Adder<T> adder, TimeRangeCache<T> cache, TimeRangeValueCalculator<T> valueCalculator) {
+        T result;
+        if (!from.before(to)) {
+            result = nullElement;
+        } else {
+            boolean perfectCacheHit = false;
+            lockForRead();
+            try {
+                Util.Pair<TimePoint, Util.Pair<TimePoint, T>> bestCacheEntry = cache.getEarliestFromAndResultAtOrAfterFrom(from, to);
+                if (bestCacheEntry != null) {
+                    perfectCacheHit = true; // potentially a cache hit; but if it doesn't span the full interval, it's not perfect; see below
+                    // compute the missing stretches between best cache entry's "from" and our "from" and the cache
+                    // entry's "to" and our "to"
+                    T distanceFromFromToBeginningOfCacheEntry = nullElement;
+                    T distanceFromEndOfCacheEntryToTo = nullElement;
+                    if (!bestCacheEntry.getB().getA().equals(from)) {
+                        assert bestCacheEntry.getB().getA().after(from);
+                        perfectCacheHit = false;
+                        distanceFromFromToBeginningOfCacheEntry = getValueSumRecursively(from, bestCacheEntry
+                                .getB().getA(), recursionDepth + 1, nullElement, adder, cache, valueCalculator);
+                    }
+                    if (!bestCacheEntry.getA().equals(to)) {
+                        assert bestCacheEntry.getA().before(to);
+                        perfectCacheHit = false;
+                        distanceFromEndOfCacheEntryToTo = getValueSumRecursively(bestCacheEntry.getA(), to,
+                                recursionDepth + 1, nullElement, adder, cache, valueCalculator);
+                    }
+                    result = adder.add(adder.add(distanceFromFromToBeginningOfCacheEntry, bestCacheEntry.getB().getB()), 
+                            distanceFromEndOfCacheEntryToTo);
+                } else {
+                    if (from.compareTo(to) < 0) {
+                        result = valueCalculator.calculate(from, to);
+                    } else {
+                        result = nullElement;
+                    }
+                }
+            } finally {
+                unlockAfterRead();
+            }
+            if (!perfectCacheHit && recursionDepth == 0) {
+                cache.cache(from, to, result);
+            }
+        }
+        return result;
+    }
+
+
+    
     @Override
     public int size() {
         return fixes.size();

java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/test/TrackTest.java

@@ -51,7 +51,7 @@ import com.sap.sailing.domain.common.tracking.impl.GPSFixMovingImpl;
 import com.sap.sailing.domain.common.tracking.impl.VeryCompactGPSFixMovingImpl;
 import com.sap.sailing.domain.tracking.DynamicGPSFixTrack;
 import com.sap.sailing.domain.tracking.GPSFixTrack;
-import com.sap.sailing.domain.tracking.impl.DistanceCache;
+import com.sap.sailing.domain.tracking.impl.TimeRangeCache;
 import com.sap.sailing.domain.tracking.impl.DynamicGPSFixMovingTrackImpl;
 import com.sap.sailing.domain.tracking.impl.DynamicGPSFixTrackImpl;
 import com.sap.sailing.domain.tracking.impl.GPSFixTrackImpl;
@@ -442,7 +442,7 @@ public class TrackTest {
     @Test
     public void testDistanceTraveledBackwardsQuery() {
         final Set<com.sap.sse.common.Util.Triple<TimePoint, TimePoint, Distance>> cacheEntries = new HashSet<>();
-        final DistanceCache distanceCache = new DistanceCache("test-DistanceCache") {
+        final TimeRangeCache<Distance> distanceCache = new TimeRangeCache<Distance>("test-DistanceCache") {
             @Override
             public void cache(TimePoint from, TimePoint to, Distance distance) {
                 super.cache(from, to, distance);
@@ -453,7 +453,7 @@ public class TrackTest {
         DynamicGPSFixTrack<Object, GPSFix> track = new DynamicGPSFixTrackImpl<Object>(new Object(), /* millisecondsOverWhichToAverage */ 30000l) {
             private static final long serialVersionUID = -7277196393160609503L;
             @Override
-            protected DistanceCache getDistanceCache() {
+            protected TimeRangeCache<Distance> getDistanceCache() {
                 return distanceCache;
             }
         };
@@ -779,7 +779,7 @@ public class TrackTest {
     @Test
     public void testDistanceTraveledOnSmoothenedTrackThenAddingOutlier() {
         final Set<TimePoint> invalidationCalls = new HashSet<TimePoint>();
-        final DistanceCache distanceCache = new DistanceCache("test-DistanceCache") {
+        final TimeRangeCache<Distance> distanceCache = new TimeRangeCache<Distance>("test-DistanceCache") {
             @Override
             public void invalidateAllAtOrLaterThan(TimePoint timePoint) {
                 super.invalidateAllAtOrLaterThan(timePoint);
@@ -789,7 +789,7 @@ public class TrackTest {
         DynamicGPSFixTrack<Object, GPSFix> track = new DynamicGPSFixTrackImpl<Object>(new Object(), /* millisecondsOverWhichToAverage */ 30000l) {
             private static final long serialVersionUID = -7277196393160609503L;
             @Override
-            protected DistanceCache getDistanceCache() {
+            protected TimeRangeCache<Distance> getDistanceCache() {
                 return distanceCache;
             }
         };
@@ -811,7 +811,7 @@ public class TrackTest {
         }
         invalidationCalls.clear();
         assertEquals(speed.getMetersPerSecond()*(steps-1), track.getDistanceTraveled(now, start).getMeters(), 0.02);
-        final com.sap.sse.common.Util.Pair<TimePoint, com.sap.sse.common.Util.Pair<TimePoint, Distance>> fullIntervalCacheEntry = distanceCache.getEarliestFromAndDistanceAtOrAfterFrom(now,  start);
+        final com.sap.sse.common.Util.Pair<TimePoint, com.sap.sse.common.Util.Pair<TimePoint, Distance>> fullIntervalCacheEntry = distanceCache.getEarliestFromAndResultAtOrAfterFrom(now,  start);
         assertNotNull(fullIntervalCacheEntry); // no more entry for "to"-value start in cache
         assertEquals(start, fullIntervalCacheEntry.getA());
         assertEquals(now, fullIntervalCacheEntry.getB().getA());
@@ -822,13 +822,13 @@ public class TrackTest {
         assertEquals(1, invalidationCalls.size());
         TimePoint timePointOfLastFixBeforeOutlier = track.getLastFixBefore(timePointForOutlier).getTimePoint();
         assertTrue(invalidationCalls.iterator().next().after(timePointOfLastFixBeforeOutlier)); // outlier doesn't turn its preceding element into an outlier
-        assertNull(distanceCache.getEarliestFromAndDistanceAtOrAfterFrom(now,  start)); // no more entry for "to"-value start in cache
+        assertNull(distanceCache.getEarliestFromAndResultAtOrAfterFrom(now,  start)); // no more entry for "to"-value start in cache
         invalidationCalls.clear();
         final TimePoint timePointOfLastOriginalFix = track.getLastRawFix().getTimePoint();
         assertEquals(speed.getMetersPerSecond() * (steps - 1),
                 track.getDistanceTraveled(now, timePointOfLastOriginalFix).getMeters(), 0.02);
         final com.sap.sse.common.Util.Pair<TimePoint, com.sap.sse.common.Util.Pair<TimePoint, Distance>> newFullIntervalCacheEntry = distanceCache
-                .getEarliestFromAndDistanceAtOrAfterFrom(now, timePointOfLastOriginalFix);
+                .getEarliestFromAndResultAtOrAfterFrom(now, timePointOfLastOriginalFix);
         assertNotNull(newFullIntervalCacheEntry); // no more entry for "to"-value start in cache
         assertEquals(timePointOfLastOriginalFix, newFullIntervalCacheEntry.getA());
         assertEquals(now, newFullIntervalCacheEntry.getB().getA());
@@ -845,7 +845,7 @@ public class TrackTest {
         invalidationCalls.clear();
         // expect the invalidation to have started after the single cache entry, so the cache entry still has to be there:
         final com.sap.sse.common.Util.Pair<TimePoint, com.sap.sse.common.Util.Pair<TimePoint, Distance>> stillPresentFullIntervalCacheEntry = distanceCache
-                .getEarliestFromAndDistanceAtOrAfterFrom(now, timePointOfLastOriginalFix);
+                .getEarliestFromAndResultAtOrAfterFrom(now, timePointOfLastOriginalFix);
         assertNull(stillPresentFullIntervalCacheEntry); // no more entry for "to"-value start in cache because new temporary outlier lies in previously cached interval
         GPSFix polishedLastFix = track.getLastFixBefore(new MillisecondsTimePoint(Long.MAX_VALUE)); // get the last smoothened fix...
         // ...which now is expected to be two fixes before lateOutlier because lateOutlier has previous fixes within the time range
@@ -870,7 +870,7 @@ public class TrackTest {
         assertTrue(timePointForLateOutlier.compareTo(fix.getTimePoint()) < 0);
         // expect the invalidation to have started at the fix before the outlier, leaving the previous result ending at the fix right before the outlier intact
         final com.sap.sse.common.Util.Pair<TimePoint, com.sap.sse.common.Util.Pair<TimePoint, Distance>> stillStillPresentFullIntervalCacheEntry = distanceCache
-                .getEarliestFromAndDistanceAtOrAfterFrom(now, timePointOfLastOriginalFix);
+                .getEarliestFromAndResultAtOrAfterFrom(now, timePointOfLastOriginalFix);
         assertNull(stillStillPresentFullIntervalCacheEntry); // still nothing in the cache
         track.lockForRead();
         try {
@@ -955,11 +955,11 @@ public class TrackTest {
         final Duration raceDuration = Duration.ONE_HOUR.times(48);
         final Speed speed = new KnotSpeedImpl(12);
         final Distance distancePerSample = speed.travel(fixTime, fixTime.plus(samplingInterval));
-        final DistanceCache distanceCache = new DistanceCache("test-DistanceCache");
+        final TimeRangeCache<Distance> distanceCache = new TimeRangeCache<>("test-DistanceCache");
         DynamicGPSFixTrack<Object, GPSFix> track = new DynamicGPSFixTrackImpl<Object>(new Object(), /* millisecondsOverWhichToAverage */ 30000l) {
             private static final long serialVersionUID = -7277196393160609503L;
             @Override
-            protected DistanceCache getDistanceCache() {
+            protected TimeRangeCache<Distance> getDistanceCache() {
                 return distanceCache;
             }
         };
@@ -980,13 +980,13 @@ public class TrackTest {
                 queryTime = queryTime.plus(queryInterval);
             }
         }
-        assertTrue(distanceCache.size() <= DistanceCache.MAX_SIZE);
+        assertTrue(distanceCache.size() <= TimeRangeCache.MAX_SIZE);
     }
     
     @Test
     public void testDistanceCacheAccessForPartialStrip() {
         final Set<TimePoint> invalidationCalls = new HashSet<TimePoint>();
-        final DistanceCache distanceCache = new DistanceCache("test-DistanceCache") {
+        final TimeRangeCache<Distance> distanceCache = new TimeRangeCache<Distance>("test-DistanceCache") {
             @Override
             public void invalidateAllAtOrLaterThan(TimePoint timePoint) {
                 super.invalidateAllAtOrLaterThan(timePoint);
@@ -996,7 +996,7 @@ public class TrackTest {
         DynamicGPSFixTrack<Object, GPSFix> track = new DynamicGPSFixTrackImpl<Object>(new Object(), /* millisecondsOverWhichToAverage */ 30000l) {
             private static final long serialVersionUID = -7277196393160609503L;
             @Override
-            protected DistanceCache getDistanceCache() {
+            protected TimeRangeCache<Distance> getDistanceCache() {
                 return distanceCache;
             }
         };
@@ -1024,11 +1024,11 @@ public class TrackTest {
         assertEquals(speed.getMetersPerSecond()*(steps-1), track.getDistanceTraveled(now, start).getMeters(), 0.02);
         assertTrue(invalidationCalls.isEmpty());
         // expect a cache entry exactly for the strip's boundaries
-        com.sap.sse.common.Util.Pair<TimePoint, com.sap.sse.common.Util.Pair<TimePoint, Distance>> stripCacheEntry = distanceCache.getEarliestFromAndDistanceAtOrAfterFrom(stripFrom, stripTo);
+        com.sap.sse.common.Util.Pair<TimePoint, com.sap.sse.common.Util.Pair<TimePoint, Distance>> stripCacheEntry = distanceCache.getEarliestFromAndResultAtOrAfterFrom(stripFrom, stripTo);
         assertEquals(stripTo, stripCacheEntry.getA());
         assertEquals(stripFrom, stripCacheEntry.getB().getA());
         // expect a cache entry exactly for the full boundaries
-        com.sap.sse.common.Util.Pair<TimePoint, com.sap.sse.common.Util.Pair<TimePoint, Distance>> fullCacheEntry = distanceCache.getEarliestFromAndDistanceAtOrAfterFrom(now, start);
+        com.sap.sse.common.Util.Pair<TimePoint, com.sap.sse.common.Util.Pair<TimePoint, Distance>> fullCacheEntry = distanceCache.getEarliestFromAndResultAtOrAfterFrom(now, start);
         assertEquals(start, fullCacheEntry.getA());
         assertEquals(now, fullCacheEntry.getB().getA());
     }

java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/test/mock/MockedTrackedRace.java

@@ -674,6 +674,16 @@ public class MockedTrackedRace implements DynamicTrackedRace {
         return null;
     }
 
+    @Override
+    public Distance getDistanceFoiled(Competitor competitor, TimePoint timePoint) {
+        return null;
+    }
+
+    @Override
+    public Duration getDurationFoiled(Competitor competitor, TimePoint timePoint) {
+        return null;
+    }
+
     @Override
     public Distance getWindwardDistanceToCompetitorFarthestAhead(Competitor competitor, TimePoint timePoint,
             WindPositionMode windPositionMode) {

java/com.sap.sailing.domain.test/src/com/sap/sailing/domain/test/mock/MockedTrackedRaceWithStartTimeAndRanks.java

@@ -60,6 +60,7 @@ import com.sap.sailing.domain.tracking.WindStore;
 import com.sap.sailing.domain.tracking.WindTrack;
 import com.sap.sailing.domain.tracking.WindWithConfidence;
 import com.sap.sailing.domain.tracking.impl.DynamicTrackedRegattaImpl;
+import com.sap.sse.common.Duration;
 import com.sap.sse.common.IsManagedByCache;
 import com.sap.sse.common.TimePoint;
 import com.sap.sse.common.Util;
@@ -360,6 +361,16 @@ public class MockedTrackedRaceWithStartTimeAndRanks implements TrackedRace {
         return null;
     }
 
+    @Override
+    public Distance getDistanceFoiled(Competitor competitor, TimePoint timePoint) {
+        return null;
+    }
+
+    @Override
+    public Duration getDurationFoiled(Competitor competitor, TimePoint timePoint) {
+        return null;
+    }
+
     @Override
     public Distance getWindwardDistanceToCompetitorFarthestAhead(Competitor competitor, TimePoint timePoint, WindPositionMode windPositionMode) {
         return null;

java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/Leaderboard.java

@@ -481,6 +481,26 @@ public interface Leaderboard extends LeaderboardBase, HasRaceColumns {
      *         leaderboard
      */
     Distance getTotalDistanceTraveled(Competitor competitor, TimePoint timePoint);
+
+    /**
+     * Computes the distance the <code>competitor</code> has been foiling in the tracked races in this leaderboard, starting
+     * to count in each race when the competitor passes the start line, aggregating up to <code>timePoint</code> or the
+     * end of the last race, whichever is first.
+     * 
+     * @return <code>null</code> if the <code>competitor</code> hasn't foiled any distance in any tracked race in this
+     *         leaderboard
+     */
+    Distance getTotalDistanceFoiled(Competitor competitor, TimePoint timePoint);
+    
+    /**
+     * Computes the duration the <code>competitor</code> has foiled in the tracked races in this leaderboard, starting
+     * to count in each race when the competitor passes the start line, aggregating up to <code>timePoint</code> or the
+     * end of the last race, whichever is first.
+     * 
+     * @return <code>null</code> if the <code>competitor</code> hasn't foiled at any time in any tracked race in this
+     *         leaderboard
+     */
+    Duration getTotalDurationFoiled(Competitor competitor, TimePoint timePoint);
     
     /**
      * Same as {@link #getNetPoints(Competitor, RaceColumn, TimePoint)}, only that for determining the discarded

java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/impl/AbstractLeaderboardWithCache.java

@@ -19,6 +19,7 @@ import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 import java.util.concurrent.RunnableFuture;
+import java.util.function.BiFunction;
 import java.util.function.Consumer;
 import java.util.logging.Level;
 import java.util.logging.Logger;
@@ -642,8 +643,12 @@ public abstract class AbstractLeaderboardWithCache implements Leaderboard {
         row.totalTimeSailedReachingInSeconds = totalTimeSailedReaching==null?null:totalTimeSailedReaching.asSeconds();
         final Duration totalTimeSailed = this.getTotalTimeSailed(competitor, timePoint);
         row.totalTimeSailedInSeconds = totalTimeSailed==null?null:totalTimeSailed.asSeconds();
-        final Distance totalDistanceTraveledInMeters = this.getTotalDistanceTraveled(competitor, timePoint);
-        row.totalDistanceTraveledInMeters = totalDistanceTraveledInMeters==null?null:totalDistanceTraveledInMeters.getMeters();
+        final Distance totalDistanceTraveled = this.getTotalDistanceTraveled(competitor, timePoint);
+        row.totalDistanceTraveledInMeters = totalDistanceTraveled==null?null:totalDistanceTraveled.getMeters();
+        final Distance totalDistanceFoiled = this.getTotalDistanceFoiled(competitor, timePoint);
+        row.totalDistanceFoiledInMeters = totalDistanceFoiled==null?null:totalDistanceFoiled.getMeters();
+        final Duration totalDurationFoiled = this.getTotalDurationFoiled(competitor, timePoint);
+        row.totalDurationFoiledInSeconds = totalDurationFoiled==null?null:totalDurationFoiled.asSeconds();
     }
 
     private LeaderboardDTOCache getLeaderboardDTOCache() {
@@ -821,6 +826,12 @@ public abstract class AbstractLeaderboardWithCache implements Leaderboard {
             result.currentHeelInDegrees = heel == null ? null : heel.getDegrees();
             Bearing pitch = trackedLeg.getPitch(timePoint);
             result.currentPitchInDegrees = pitch == null ? null : pitch.getDegrees();
+            
+            Distance distanceFoiled = trackedLeg.getDistanceFoiled(timePoint);
+            result.currentDistanceFoiledInMeters = distanceFoiled == null ? null : distanceFoiled.getMeters();
+            Duration durationFoiled = trackedLeg.getDurationFoiled(timePoint);
+            result.currentDurationFoiledInSeconds = durationFoiled == null ? null : durationFoiled.asSeconds();
+
             result.currentSpeedOverGroundInKnots = speedOverGroundInKnots == null ? null : speedOverGroundInKnots;
             Distance distanceTraveled = trackedLeg.getDistanceTraveled(timePoint);
             result.distanceTraveledInMeters = distanceTraveled == null ? null : distanceTraveled.getMeters();
@@ -1082,18 +1093,37 @@ public abstract class AbstractLeaderboardWithCache implements Leaderboard {
 
     @Override
     public Distance getTotalDistanceTraveled(Competitor competitor, TimePoint timePoint) {
-        Distance result = null;
+        return getTotals(competitor, timePoint, Distance::add, TrackedRace::getDistanceTraveled);
+    }
+    
+    @Override
+    public Distance getTotalDistanceFoiled(Competitor competitor, TimePoint timePoint) {
+        return getTotals(competitor, timePoint, Distance::add, TrackedRace::getDistanceFoiled);
+    }
+    
+    @Override
+    public Duration getTotalDurationFoiled(Competitor competitor, TimePoint timePoint) {
+        return getTotals(competitor, timePoint, Duration::plus, TrackedRace::getDurationFoiled);
+    }
+    
+    @FunctionalInterface
+    private static interface ValueFromRaceGetter<T> {
+        T get(TrackedRace trackedRace, Competitor competitor, TimePoint timePoint);
+    }
+    
+    private <T> T getTotals(Competitor competitor, TimePoint timePoint, BiFunction<T, T, T> adder, ValueFromRaceGetter<T> valueGetter) {
+        T result = null;
         for (TrackedRace trackedRace : getTrackedRaces()) {
             TimePoint startOfRace;
             if (Util.contains(trackedRace.getRace().getCompetitors(), competitor) &&
                     (startOfRace=trackedRace.getStartOfRace()) != null &&
                     !startOfRace.after(timePoint)) {
-                Distance distanceSailedInRace = trackedRace.getDistanceTraveled(competitor, timePoint);
+                T distanceSailedInRace = valueGetter.get(trackedRace, competitor, timePoint);
                 if (distanceSailedInRace != null) {
                     if (result == null) {
                         result = distanceSailedInRace;
                     } else {
-                        result = result.add(distanceSailedInRace);
+                        result = adder.apply(result, distanceSailedInRace);
                     }
                 } else {
                     // if competitor has not finished one single race in the whole

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/BravoFixTrack.java

@@ -2,12 +2,10 @@ package com.sap.sailing.domain.tracking;
 
 import java.io.Serializable;
 
-import com.sap.sailing.domain.base.Competitor;
 import com.sap.sailing.domain.common.Bearing;
 import com.sap.sailing.domain.common.Distance;
 import com.sap.sailing.domain.common.tracking.BravoExtendedFix;
 import com.sap.sailing.domain.common.tracking.BravoFix;
-import com.sap.sailing.domain.common.tracking.GPSFixMoving;
 import com.sap.sse.common.Duration;
 import com.sap.sse.common.TimePoint;
 import com.sap.sse.common.WithID;
@@ -73,7 +71,7 @@ public interface BravoFixTrack<ItemType extends WithID & Serializable> extends S
     /**
      * The distance sailed foiling during the time range provided
      */
-    Distance getDistanceSpentFoiling(GPSFixTrack<Competitor, GPSFixMoving> gpsFixTrack, TimePoint from, TimePoint to);
+    Distance getDistanceSpentFoiling(TimePoint from, TimePoint to);
     
     /**
      * Returns {@code true}, if the track contains {@link BravoExtendedFix} instances instead of simple {@link BravoFix BravoFixes}.

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/TrackedLegOfCompetitor.java

@@ -241,6 +241,11 @@ public interface TrackedLegOfCompetitor extends Serializable {
     Bearing getHeel(TimePoint at);
 
     Bearing getPitch(TimePoint at);
+    
+    Distance getDistanceFoiled(TimePoint at);
+    
+    Duration getDurationFoiled(TimePoint at);
+    
     /**
      * Computes the distance along the wind track to the wind-projected position of the race's overall leader. If leader
      * and competitor are in the same leg, this is simply the windward distance. If the leader is already one or more
@@ -261,7 +266,6 @@ public interface TrackedLegOfCompetitor extends Serializable {
     /**
      * Same as {@link #getWindwardDistanceToCompetitorFarthestAhead(TimePoint, WindPositionMode, RankingInfo)}, only that a cache for leg type
      * calculation is passed.
-     * @param rankingInfo TODO
      */
     Distance getWindwardDistanceToCompetitorFarthestAhead(TimePoint timePoint, WindPositionMode windPositionMode, RankingInfo rankingInfo, WindLegTypeAndLegBearingCache cache);
 

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/TrackedRace.java

@@ -611,7 +611,7 @@ public interface TrackedRace extends Serializable, IsManagedByCache<SharedDomain
             boolean notifyAboutGPSFixesAlreadyLoaded);
 
     void removeListener(RaceChangeListener listener);
-
+    
     /**
      * @return <code>null</code> if there are no mark passings for the <code>competitor</code> in this race
      * or if the competitor has not finished one of the legs in the race.
@@ -623,6 +623,18 @@ public interface TrackedRace extends Serializable, IsManagedByCache<SharedDomain
      */
     Distance getDistanceTraveledIncludingGateStart(Competitor competitor, TimePoint timePoint);
 
+    /**
+     * @return <code>null</code> if there are no mark passings for the <code>competitor</code> in this race
+     * or if the competitor has not finished one of the legs in the race.
+     */
+    Distance getDistanceFoiled(Competitor competitor, TimePoint timePoint);
+
+    /**
+     * @return <code>null</code> if there are no mark passings for the <code>competitor</code> in this race
+     * or if the competitor has not finished one of the legs in the race.
+     */
+    Duration getDurationFoiled(Competitor competitor, TimePoint timePoint);
+
     /**
      * See {@link TrackedLegOfCompetitor#getWindwardDistanceToCompetitorFarthestAhead(TimePoint, WindPositionMode, RankingInfo)}
      */

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/impl/BravoFixTrackImpl.java

@@ -1,9 +1,10 @@
 package com.sap.sailing.domain.tracking.impl;
 
+import java.io.IOException;
+import java.io.ObjectInputStream;
 import java.io.Serializable;
 import java.util.function.Function;
 
-import com.sap.sailing.domain.base.Competitor;
 import com.sap.sailing.domain.common.Bearing;
 import com.sap.sailing.domain.common.Distance;
 import com.sap.sailing.domain.common.confidence.impl.ScalableDouble;
@@ -15,6 +16,8 @@ import com.sap.sailing.domain.common.tracking.GPSFixMoving;
 import com.sap.sailing.domain.tracking.BravoFixTrack;
 import com.sap.sailing.domain.tracking.DynamicBravoFixTrack;
 import com.sap.sailing.domain.tracking.GPSFixTrack;
+import com.sap.sailing.domain.tracking.GPSTrackListener;
+import com.sap.sailing.domain.tracking.Track;
 import com.sap.sailing.domain.tracking.TrackedRace;
 import com.sap.sse.common.Duration;
 import com.sap.sse.common.TimePoint;
@@ -31,6 +34,37 @@ public class BravoFixTrackImpl<ItemType extends WithID & Serializable> extends S
     private static final long serialVersionUID = 460944392510182976L;
     
     private final boolean hasExtendedFixes;
+    
+    private transient TimeRangeCache<Duration> foilingTimeCache;
+    
+    private transient TimeRangeCache<Distance> foilingDistanceCache;
+    
+    private transient TimeRangeCache<Distance> averageRideHeightCache;
+    
+    /**
+     * If a GPS track was provided at construction time, remember it non-transiently. It is needed when restoring
+     * the object after de-serialization, so the cache invalidation listener can be re-established.
+     */
+    private GPSFixTrack<ItemType, GPSFixMoving> gpsTrack;
+    
+    private class CacheInvalidationGpsTrackListener implements GPSTrackListener<ItemType, GPSFixMoving> {
+        private static final long serialVersionUID = 6395529765232404414L;
+        @Override
+        public boolean isTransient() {
+            return true;
+        }
+
+        @Override
+        public void gpsFixReceived(GPSFixMoving fix, ItemType item, boolean firstFixInTrack) {
+            assert item == getTrackedItem();
+            foilingDistanceCache.invalidateAllAtOrLaterThan(fix.getTimePoint());
+        }
+
+        @Override
+        public void speedAveragingChanged(long oldMillisecondsOverWhichToAverage,
+                long newMillisecondsOverWhichToAverage) {
+        }
+    }
 
     /**
      * @param trackedItem
@@ -39,8 +73,55 @@ public class BravoFixTrackImpl<ItemType extends WithID & Serializable> extends S
      *            the name of the track by which it can be obtained from the {@link TrackedRace}.
      */
     public BravoFixTrackImpl(ItemType trackedItem, String trackName, boolean hasExtendedFixes) {
+        this(trackedItem, trackName, hasExtendedFixes, /* listen to GPS track for distance cache invalidation */ null);
+    }
+    
+    /**
+     * @param gpsTrack
+     *            if not {@code null}, this track will listen on that track for changes in order to invalidate this
+     *            track's caches; for example, if a GPS fix is added, this track may need to invalidate its
+     *            {@link #foilingDistanceCache} accordingly because the distance traveled between the fixes may have
+     *            changed.
+     */
+    public BravoFixTrackImpl(ItemType trackedItem, String trackName, boolean hasExtendedFixes, GPSFixTrack<ItemType, GPSFixMoving> gpsTrack) {
         super(trackedItem, trackName, BravoFixTrack.TRACK_NAME + " for " + trackedItem);
         this.hasExtendedFixes = hasExtendedFixes;
+        this.foilingTimeCache = createFoilingTimeCache(trackedItem);
+        this.foilingDistanceCache = createFoilingDistanceCache(trackedItem);
+        this.averageRideHeightCache = createAverageRideHeightCache(trackedItem);
+        this.gpsTrack = gpsTrack;
+        if (gpsTrack != null) {
+            gpsTrack.addListener(new CacheInvalidationGpsTrackListener());
+        }
+    }
+
+    private TimeRangeCache<Distance> createAverageRideHeightCache(ItemType trackedItem) {
+        return createTimeRangeCache(trackedItem, "averageRideHeightCache");
+    }
+
+    private <T> TimeRangeCache<T> createTimeRangeCache(ItemType trackedItem, final String cacheName) {
+        return new TimeRangeCache<>(cacheName+" for "+trackedItem);
+    }
+
+    private TimeRangeCache<Distance> createFoilingDistanceCache(ItemType trackedItem) {
+        return createTimeRangeCache(trackedItem, "foilingDistanceCache");
+    }
+
+    private TimeRangeCache<Duration> createFoilingTimeCache(ItemType trackedItem) {
+        return createTimeRangeCache(trackedItem, "foilingTimeCache");
+    }
+    
+    /**
+     * After reading this object from an {@link ObjectInputStream}, initialize the caches properly.
+     */
+    private void readObject(ObjectInputStream ois) throws ClassNotFoundException, IOException {
+        ois.defaultReadObject();
+        this.foilingTimeCache = createFoilingTimeCache(getTrackedItem());
+        this.foilingDistanceCache = createFoilingDistanceCache(getTrackedItem());
+        this.averageRideHeightCache = createAverageRideHeightCache(getTrackedItem());
+        if (gpsTrack != null) {
+            gpsTrack.addListener(new CacheInvalidationGpsTrackListener());
+        }
     }
 
     @Override
@@ -67,29 +148,43 @@ public class BravoFixTrackImpl<ItemType extends WithID & Serializable> extends S
         return rideHeight != null && rideHeight.compareTo(BravoFix.MIN_FOILING_HEIGHT_THRESHOLD) >= 0;
     }
 
+    
+    @Override
+    public boolean add(BravoFix fix, boolean replace) {
+        final boolean added = super.add(fix, replace);
+        if (added) {
+            final TimePoint fixTimePoint = fix.getTimePoint();
+            averageRideHeightCache.invalidateAllAtOrLaterThan(fixTimePoint);
+            foilingDistanceCache.invalidateAllAtOrLaterThan(fixTimePoint);
+            foilingTimeCache.invalidateAllAtOrLaterThan(fixTimePoint);
+        }
+        return added;
+    }
+
     @Override
     public Distance getAverageRideHeight(TimePoint from, TimePoint to) {
-        final Distance result;
-        lockForRead();
-        try {
-            Distance sum = Distance.NULL;
-            int count = 0;
-            for (final BravoFix fix : getFixes(from, true, to, true)) {
-                final Distance rideHeight = fix.getRideHeight();
-                if (rideHeight != null) {
-                    sum = sum.add(rideHeight);
-                    count++;
+        return getValueSum(from, to, /* nullElement */ Distance.NULL, Distance::add, averageRideHeightCache,
+                /* valueCalculator */ new Track.TimeRangeValueCalculator<Distance>() {
+            @Override
+            public Distance calculate(TimePoint from, TimePoint to) {
+                Distance result;
+                Distance sum = Distance.NULL;
+                int count = 0;
+                for (final BravoFix fix : getFixes(from, true, to, true)) {
+                    final Distance rideHeight = fix.getRideHeight();
+                    if (rideHeight != null) {
+                        sum = sum.add(rideHeight);
+                        count++;
+                    }
                 }
+                if (count > 0) {
+                    result = sum.scale(1./count);
+                } else {
+                    result = null;
+                }
+                return result;
             }
-            if (count > 0) {
-                result = sum.scale(1./count);
-            } else {
-                result = null;
-            }
-        } finally {
-            unlockAfterRead();
-        }
-        return result;
+        });
     }
     
     private boolean isFoiling(BravoFix fix) {
@@ -98,44 +193,47 @@ public class BravoFixTrackImpl<ItemType extends WithID & Serializable> extends S
 
     @Override
     public Duration getTimeSpentFoiling(TimePoint from, TimePoint to) {
-        Duration result = Duration.NULL;
-        lockForRead();
-        try {
-            TimePoint last = from;
-            boolean isFoiling = false;
-            for (final BravoFix fix : getFixes(from, true, to, true)) {
-                final boolean fixFoils = isFoiling(fix);
-                if (isFoiling && fixFoils) {
-                    result = result.plus(last.until(fix.getTimePoint()));
+        return getValueSum(from, to, /* nullElement */ Duration.NULL, Duration::plus, foilingTimeCache,
+                /* valueCalculator */ new Track.TimeRangeValueCalculator<Duration>() {
+            @Override
+            public Duration calculate(TimePoint from, TimePoint to) {
+                Duration result = Duration.NULL;
+                TimePoint last = from;
+                boolean isFoiling = false;
+                for (final BravoFix fix : getFixes(from, true, to, true)) {
+                    final boolean fixFoils = isFoiling(fix);
+                    if (isFoiling && fixFoils) {
+                        result = result.plus(last.until(fix.getTimePoint()));
+                    }
+                    last = fix.getTimePoint();
+                    isFoiling = fixFoils;
                 }
-                last = fix.getTimePoint();
-                isFoiling = fixFoils;
+                return result;
             }
-        } finally {
-            unlockAfterRead();
-        }
-        return result;
+        });
     }
 
     @Override
-    public Distance getDistanceSpentFoiling(GPSFixTrack<Competitor, GPSFixMoving> gpsFixTrack, TimePoint from, TimePoint to) {
-        Distance result = Distance.NULL;
-        lockForRead();
-        try {
-            TimePoint last = from;
-            boolean isFoiling = false;
-            for (final BravoFix fix : getFixes(from, true, to, true)) {
-                final boolean fixFoils = isFoiling(fix);
-                if (isFoiling && fixFoils) {
-                    result = result.add(gpsFixTrack.getDistanceTraveled(last, fix.getTimePoint()));
+    public Distance getDistanceSpentFoiling(TimePoint from, TimePoint to) {
+        assert gpsTrack != null;
+        return getValueSum(from, to, /* nullElement */ Distance.NULL, Distance::add, foilingDistanceCache,
+                /* valueCalculator */ new Track.TimeRangeValueCalculator<Distance>() {
+            @Override
+            public Distance calculate(TimePoint from, TimePoint to) {
+                Distance result = Distance.NULL;
+                TimePoint last = from;
+                boolean isFoiling = false;
+                for (final BravoFix fix : getFixes(from, true, to, true)) {
+                    final boolean fixFoils = isFoiling(fix);
+                    if (isFoiling && fixFoils) {
+                        result = result.add(gpsTrack.getDistanceTraveled(last, fix.getTimePoint()));
+                    }
+                    last = fix.getTimePoint();
+                    isFoiling = fixFoils;
                 }
-                last = fix.getTimePoint();
-                isFoiling = fixFoils;
+                return result;
             }
-        } finally {
-            unlockAfterRead();
-        }
-        return result;
+        });
     }
 
     @Override

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/impl/DistanceCache.java

@@ -1,237 +0,0 @@
-package com.sap.sailing.domain.tracking.impl;
-
-import java.util.Comparator;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
-import java.util.Map.Entry;
-import java.util.NavigableSet;
-
-import com.sap.sailing.domain.common.Distance;
-import com.sap.sailing.domain.common.tracking.GPSFix;
-import com.sap.sse.common.TimePoint;
-import com.sap.sse.common.Util;
-import com.sap.sse.common.Util.Pair;
-import com.sap.sse.concurrent.LockUtil;
-import com.sap.sse.concurrent.NamedReentrantReadWriteLock;
-import com.sap.sse.util.impl.ArrayListNavigableSet;
-
-/**
- * Computing {@link #getDistanceTraveled(TimePoint, TimePoint)} is more expensive the longer the track is and the
- * higher the tracking frequency. It is called regularly, usually for the same start time. Keeping to re-evaluate
- * all distances between all GPS fixes, even if they remain constant, is a waste of resources, particularly when we
- * assume that usually GPS fixes are appended to a track and not usually randomly inserted, even though this can
- * happen.
- * <p>
- * 
- * This cache looks "backwards." It contains pairs whose first component represents a <code>to</code> parameter used
- * in {@link #getDistanceTraveled(TimePoint, TimePoint)}. It is ordered by this component. The second component is a
- * navigable, ordered set of pairs where the first pair component represents a <code>from</code> parameter used in
- * {@link #getDistanceTraveled(TimePoint, TimePoint)} and the second pair component represents the result of
- * {@link #getDistanceTraveled(TimePoint, TimePoint)} for this parameter combination. Note that the cache does only
- * store distances for <code>from</code> time points actually passed to
- * {@link #getDistanceTraveled(TimePoint, TimePoint)} and does not cache all interim combinations collected while
- * computing a result. As such, it differs from a typical "dynamic programming" algorithm which would store all
- * in-between values too. Assuming that <code>from</code> values are sparse (leg start, race start, ...), there
- * doesn't seem to be much use in storing all the other in-between values too.
- * <p>
- * 
- * For implementation efficiency in combination with using a {@link ArrayListNavigableSet} for the values and in
- * order to be able to efficiently extend a cache entry for a single <code>to</code> fix, the navigable sets
- * containing the <code>from</code> fixes and distances are ordered such that earlier fixes come later in the set.
- * This way, extending the cache entry for a <code>to</code> fix to an earlier <code>from</code> fix only requires
- * appending to the set.
- * <p>
- * 
- * <b>Invalidation</b>: When a new fix is added to this track, all distance cache entries for fixes at or later than
- * the new fix's time point are removed from this cache. Additionally, the fix insertion may have an impact on the
- * {@link #getEarlierFixesWhoseValidityMayBeAffected(GPSFix) previous fix's} validity (track smoothing) and
- * therefore on its selection for distance aggregation. Therefore, if fix addition turned the previous fix invalid,
- * the cache entries for the time points at or after the previous fix also need to be removed.
- * <p>
- * 
- * <b>Cache use</b>: When {@link #getDistanceTraveled(TimePoint, TimePoint)} is called, it first looks for a cache
- * entry for the <code>to</code> parameter. If one is found, the earliest entry in the navigable set for the
- * navigable set of <code>from</code> and distance values that is at or after the requested <code>from</code> time
- * point is determined. If such an entry exists, the distance is remembered and the algorithm is repeated
- * recursively, using the <code>from</code> value found in the cache as the new <code>to</code> value, and the
- * <code>from</code> value originally passed to {@link #getDistanceTraveled(TimePoint, TimePoint)} as
- * <code>from</code> again. If no entry is found in the cache entry for <code>to</code> that is at or after the
- * requested <code>from</code> time, the distance is computed by iterating the smoothened fixes.
- * <p>
- * 
- * If a cache entry for <code>to</code> is not found, the latest cache entry before it is looked up. If one is
- * found, the distance between the <code>to</code> time point requested and the <code>to</code> time point found in
- * the cache is computed by iterating the smoothened fixes for this interval. If none is found, the distance is
- * computed by iterating backwards all the way to <code>from</code>.
- * <p>
- * 
- * Once the {@link #getDistanceTraveled(TimePoint, TimePoint)} has computed its value, it adds the result to the
- * cache.
- * 
- * @author Axel Uhl (D043530)
- */
-public class DistanceCache {
-    public static final int MAX_SIZE = 100;
-    
-    private final NavigableSet<Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>>> distanceCache;
-    
-    /**
-     * The cache is to have limited size. Eviction shall happen based on a least-recently-used strategy. Usage is
-     * defined as having been returned by {@link #getEarliestFromAndDistanceAtOrAfterFrom(TimePoint, TimePoint)} or
-     * having been added by {@link #cache(TimePoint, TimePoint, Distance)}.
-     * <p>
-     * 
-     * When an eldest entry is asked to be expunged from this map and the map has more than {@link #MAX_SIZE} elements,
-     * the expunging will be admitted, and the entry is removed from the {@link #distanceCache} core structure. Reading
-     * and writing this structure must happen under the {@link #lock write lock} because also reading the linked hash
-     * map that counts access as "use" has a modifying effect on its internal structures.
-     * <p>
-     * 
-     * The key pairs are from/to pairs. Note that this is in some sense "the opposite direction" compared to the
-     * alignment of the {@link #distanceCache} structure which has as its outer keys the "to" time point.<p>
-     * 
-     * Read access is to be <code>synchronized<code> using this field's mutex; write access only happens under the
-     * {@link #lock write lock} and therefore will have no contenders.
-     */
-    private final LinkedHashMap<Util.Pair<TimePoint, TimePoint>, Void> lruCache;
-    
-    private final NamedReentrantReadWriteLock lock;
-    
-    private static final Comparator<Util.Pair<TimePoint, ?>> timePointInPairComparator = new Comparator<Util.Pair<TimePoint, ?>>() {
-        @Override
-        public int compare(Util.Pair<TimePoint, ?> o1, Util.Pair<TimePoint, ?> o2) {
-            return o1.getA().compareTo(o2.getA());
-        }
-    };
-
-    public DistanceCache(String nameForLockLogging) {
-        lock = new NamedReentrantReadWriteLock("lock for DistanceCache for "+nameForLockLogging, /* fair */ true);
-        this.distanceCache = new ArrayListNavigableSet<Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>>>(timePointInPairComparator);
-        this.lruCache = new LinkedHashMap<Util.Pair<TimePoint, TimePoint>, Void>(/* initial capacity */ 10, /* load factor */ 0.75f,
-                /* access-based ordering */ true) {
-            private static final long serialVersionUID = -6568235517111733193L;
-
-            @Override
-            protected boolean removeEldestEntry(Entry<Pair<TimePoint, TimePoint>, Void> eldest) {
-                final boolean expunge = size() > MAX_SIZE;
-                if (expunge) {
-                    removeCacheEntry(eldest.getKey().getA(), eldest.getKey().getB());
-                }
-                return expunge;
-            }
-        };
-    }
-    
-    public int size() {
-        return lruCache.size();
-    }
-    
-    private void removeCacheEntry(TimePoint from, TimePoint to) {
-        assert lock.getWriteHoldCount() == 1; // we can be sure we are alone here; this only happens when adding a new entry, holding the write lock
-        Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>> entryForTo = distanceCache.floor(createDummy(to));
-        if (entryForTo.getA().equals(to)) {
-            Pair<TimePoint, Distance> entryForFrom = entryForTo.getB().ceiling(new Util.Pair<TimePoint, Distance>(from, null));
-            if (entryForFrom.getA().equals(from)) {
-                entryForTo.getB().remove(entryForFrom);
-                if (entryForTo.getB().isEmpty()) {
-                    distanceCache.remove(entryForTo);
-                }
-            }
-        }
-    }
-    
-    /**
-     * Looks up the entry closest to but no later than <code>to</code>. If not found, <code>null</code> is returned. If
-     * found, the earliest pair of from/distance that is at or after <code>from</code> will be returned, together with
-     * the <code>to</code> value of the entry. If there is no entry that is at or after <code>from</code>,
-     * <code>null</code> is returned.
-     */
-    public Util.Pair<TimePoint, Util.Pair<TimePoint, Distance>> getEarliestFromAndDistanceAtOrAfterFrom(TimePoint from, TimePoint to) {
-        LockUtil.lockForRead(lock);
-        try {
-            Util.Pair<TimePoint, Util.Pair<TimePoint, Distance>> result = null;
-            Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>> entryForTo = distanceCache.floor(createDummy(to));
-            if (entryForTo != null) {
-                final Util.Pair<TimePoint, Distance> fromCeiling = entryForTo.getB().ceiling(new Util.Pair<TimePoint, Distance>(from, null));
-                if (fromCeiling != null) {
-                    result = new Util.Pair<TimePoint, Util.Pair<TimePoint, Distance>>(entryForTo.getA(), fromCeiling);
-                }
-            }
-            // no writer can be active because we're holding the read lock; read access on the lruCache is synchronized using
-            // the lruCache's mutex; this is necessary because we're using access-based LRU pinging where even getting an entry
-            // modifies the internal parts of the data structure which is not thread safe.
-            synchronized (lruCache) {
-                lruCache.get(new Util.Pair<TimePoint, TimePoint>(from, to));
-            }
-            return result;
-        } finally {
-            LockUtil.unlockAfterRead(lock);
-        }
-    }
-    
-    /**
-     * Removes all cache entries that have a <code>to</code> time point that is at or after <code>timePoint</code>.
-     */
-    public void invalidateAllAtOrLaterThan(TimePoint timePoint) {
-        LockUtil.lockForWrite(lock);
-        try {
-            Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>> dummy = createDummy(timePoint);
-            NavigableSet<Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>>> toRemove = distanceCache.tailSet(dummy, /* inclusive */ true);
-            for (Iterator<Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>>> i=toRemove.iterator(); i.hasNext(); ) {
-                Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>> entryToRemove = i.next();
-                assert entryToRemove.getA().compareTo(timePoint) >= 0;
-                for (Pair<TimePoint, Distance> fromAndDistance : entryToRemove.getB()) {
-                    lruCache.remove(new Util.Pair<>(fromAndDistance.getA(), entryToRemove.getA()));
-                }
-                i.remove();
-            }
-        } finally {
-            LockUtil.unlockAfterWrite(lock);
-        }
-    }
-    
-    private NavigableSet<Util.Pair<TimePoint, Distance>> getEntryForTo(TimePoint to) {
-        NavigableSet<Util.Pair<TimePoint, Distance>> result = null;
-        Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>> dummyForTo = createDummy(to);
-        Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>> entryForTo = distanceCache.floor(dummyForTo);
-        if (entryForTo != null && entryForTo.getA().equals(to)) {
-            result = entryForTo.getB();
-        }
-        return result;
-    }
-    
-    public void cache(TimePoint from, TimePoint to, Distance distance) {
-        LockUtil.lockForWrite(lock);
-        try {
-            NavigableSet<Util.Pair<TimePoint, Distance>> entryForTo = getEntryForTo(to);
-            if (entryForTo == null) {
-                entryForTo = new ArrayListNavigableSet<Util.Pair<TimePoint, Distance>>(timePointInPairComparator);
-                Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>> pairForTo = new Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>>(
-                        to, entryForTo);
-                distanceCache.add(pairForTo);
-            }
-            entryForTo.add(new Util.Pair<TimePoint, Distance>(from, distance));
-            lruCache.put(new Util.Pair<TimePoint, TimePoint>(from, to), null);
-        } finally {
-            LockUtil.unlockAfterWrite(lock);
-        }
-    }
-    
-    private Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>> createDummy(TimePoint to) {
-        return new Util.Pair<TimePoint, NavigableSet<Util.Pair<TimePoint, Distance>>>(to, null);
-    }
-
-    /**
-     * Removes all contents from this cache
-     */
-    public void clear() {
-        LockUtil.lockForWrite(lock);
-        try {
-            distanceCache.clear();
-            lruCache.clear();
-        } finally {
-            LockUtil.unlockAfterWrite(lock);
-        }
-
-    }
-}

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/impl/GPSFixTrackImpl.java

@@ -38,6 +38,7 @@ import com.sap.sailing.domain.common.tracking.WithValidityCache;
 import com.sap.sailing.domain.common.tracking.impl.CompactPositionHelper;
 import com.sap.sailing.domain.tracking.GPSFixTrack;
 import com.sap.sailing.domain.tracking.GPSTrackListener;
+import com.sap.sailing.domain.tracking.Track;
 import com.sap.sailing.domain.tracking.TrackedRace;
 import com.sap.sse.common.TimePoint;
 import com.sap.sse.common.TimeRange;
@@ -116,7 +117,7 @@ public abstract class GPSFixTrackImpl<ItemType, FixType extends GPSFix> extends
      * Once the {@link #getDistanceTraveled(TimePoint, TimePoint)} has computed its value, it adds the result to the
      * cache.
      */
-    private transient DistanceCache distanceCache;
+    private transient TimeRangeCache<Distance> distanceCache;
     
     private transient MaxSpeedCache<ItemType, FixType> maxSpeedCache;
     
@@ -155,7 +156,7 @@ public abstract class GPSFixTrackImpl<ItemType, FixType extends GPSFix> extends
         this.millisecondsOverWhichToAverage = millisecondsOverWhichToAverage;
         this.maxSpeedForSmoothing = maxSpeedForSmoothening;
         this.listeners = new TrackListenerCollection<ItemType, FixType, GPSTrackListener<ItemType,FixType>>();
-        this.distanceCache = new DistanceCache(trackedItem==null?"null":trackedItem.toString());
+        this.distanceCache = new TimeRangeCache<>(trackedItem==null?"null":trackedItem.toString());
         this.maxSpeedCache = createMaxSpeedCache();
         this.validityCachingSuspended = false;
         this.losslessCompaction = losslessCompaction;
@@ -190,7 +191,7 @@ public abstract class GPSFixTrackImpl<ItemType, FixType extends GPSFix> extends
     
     private void readObject(ObjectInputStream ois) throws ClassNotFoundException, IOException {
         ois.defaultReadObject();
-        distanceCache = new DistanceCache(getTrackedItem().toString());
+        distanceCache = new TimeRangeCache<>(getTrackedItem().toString());
         maxSpeedCache = createMaxSpeedCache();
     }
     
@@ -506,76 +507,33 @@ public abstract class GPSFixTrackImpl<ItemType, FixType extends GPSFix> extends
 
     @Override
     public Distance getDistanceTraveled(TimePoint from, TimePoint to) {
-        return getDistanceTraveledRecursively(from, to, 0);
-    }
-    
-    private Distance getDistanceTraveledRecursively(TimePoint from, TimePoint to, int recursionDepth) {
-        Distance result;
-        if (!from.before(to)) {
-            result = Distance.NULL;
-        } else {
-            boolean perfectCacheHit = false;
-            lockForRead();
-            try {
-                Util.Pair<TimePoint, Util.Pair<TimePoint, Distance>> bestCacheEntry = getDistanceCache()
-                        .getEarliestFromAndDistanceAtOrAfterFrom(from, to);
-                if (bestCacheEntry != null) {
-                    perfectCacheHit = true; // potentially a cache hit; but if it doesn't span the full interval, it's not perfect; see below
-                    // compute the missing stretches between best cache entry's "from" and our "from" and the cache
-                    // entry's "to" and our "to"
-                    Distance distanceFromFromToBeginningOfCacheEntry = Distance.NULL;
-                    Distance distanceFromEndOfCacheEntryToTo = Distance.NULL;
-                    if (!bestCacheEntry.getB().getA().equals(from)) {
-                        assert bestCacheEntry.getB().getA().after(from);
-                        perfectCacheHit = false;
-                        distanceFromFromToBeginningOfCacheEntry = getDistanceTraveledRecursively(from, bestCacheEntry
-                                .getB().getA(), recursionDepth + 1);
-                    }
-                    if (!bestCacheEntry.getA().equals(to)) {
-                        assert bestCacheEntry.getA().before(to);
-                        perfectCacheHit = false;
-                        distanceFromEndOfCacheEntryToTo = getDistanceTraveledRecursively(bestCacheEntry.getA(), to,
-                                recursionDepth + 1);
-                    }
-                    result = distanceFromFromToBeginningOfCacheEntry.add(bestCacheEntry.getB().getB()).add(
-                            distanceFromEndOfCacheEntryToTo);
-                } else {
-                    double distanceInNauticalMiles = 0;
-                    if (from.compareTo(to) < 0) {
+        return getValueSum(from, to, /* nullElement */ Distance.NULL, Distance::add, getDistanceCache(),
+                /* valueCalculator */ new Track.TimeRangeValueCalculator<Distance>() {
+                    @Override
+                    public Distance calculate(TimePoint from, TimePoint to) {
                         // getEstimatedPosition's current implementation returns a position equal to that of a fix at
                         // "from" if there is one with exactly that time stamp
+                        Distance distance = Distance.NULL;
                         Position fromPos = getEstimatedPosition(from, /* extrapolate */false);
-                        if (fromPos == null) {
-                            result = Distance.NULL;
-                        } else {
+                        if (fromPos != null) {
                             // TODO bug 4122: idea: use the subset to determine fromPos and toPos in one go, eliminating two expensive getEstimatedPosition calls
                             NavigableSet<GPSFix> subset = getGPSFixes().subSet(new DummyGPSFix(from),
                             /* fromInclusive */false, new DummyGPSFix(to),
                             /* toInclusive */false);
                             for (GPSFix fix : subset) {
-                                double distanceBetweenAdjacentFixesInNauticalMiles = fromPos.getDistance(
-                                        fix.getPosition()).getNauticalMiles();
-                                distanceInNauticalMiles += distanceBetweenAdjacentFixesInNauticalMiles;
+                                Distance distanceBetweenAdjacentFixes = fromPos.getDistance(
+                                        fix.getPosition());
+                                distance = distance.add(distanceBetweenAdjacentFixes);
                                 fromPos = fix.getPosition();
                             }
                             Position toPos = getEstimatedPosition(to, false);
-                            distanceInNauticalMiles += fromPos.getDistance(toPos).getNauticalMiles();
-                            result = new NauticalMileDistance(distanceInNauticalMiles);
+                            distance = distance.add(fromPos.getDistance(toPos));
                         }
-                    } else {
-                        result = Distance.NULL;
+                        return distance;
                     }
-                }
-            } finally {
-                unlockAfterRead();
-            }
-            if (!perfectCacheHit && recursionDepth == 0) {
-                getDistanceCache().cache(from, to, result);
-            }
-        }
-        return result;
+                });
     }
-
+    
     @Override
     public Distance getRawDistanceTraveled(TimePoint from, TimePoint to) {
         lockForRead();
@@ -1065,7 +1023,7 @@ public abstract class GPSFixTrackImpl<ItemType, FixType extends GPSFix> extends
         }
     }
 
-    protected DistanceCache getDistanceCache() {
+    protected TimeRangeCache<Distance> getDistanceCache() {
         return distanceCache;
     }
 

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/impl/TrackedLegOfCompetitorImpl.java

@@ -709,7 +709,7 @@ public class TrackedLegOfCompetitorImpl implements TrackedLegOfCompetitor {
     public Distance getRideHeight(TimePoint at) {
         final Distance result;
         if (hasStartedLeg(at)) {
-            TimePoint timePoint =hasFinishedLeg(at) ? getMarkPassingForLegEnd().getTimePoint() : at;
+            TimePoint timePoint = hasFinishedLeg(at) ? getMarkPassingForLegEnd().getTimePoint() : at;
             BravoFixTrack<Competitor> track = getTrackedRace()
                     .<BravoFix, BravoFixTrack<Competitor>> getSensorTrack(competitor, BravoFixTrack.TRACK_NAME);
             result = track == null ? null : track.getRideHeight(timePoint);
@@ -719,6 +719,37 @@ public class TrackedLegOfCompetitorImpl implements TrackedLegOfCompetitor {
         return result;
     }
     
+    @Override
+    public Distance getDistanceFoiled(TimePoint at) {
+        final Distance result;
+        if (hasStartedLeg(at)) {
+            TimePoint timePoint = hasFinishedLeg(at) ? getMarkPassingForLegEnd().getTimePoint() : at;
+            BravoFixTrack<Competitor> track = getTrackedRace()
+                    .<BravoFix, BravoFixTrack<Competitor>> getSensorTrack(competitor, BravoFixTrack.TRACK_NAME);
+            result = track == null ? null
+                    : track.getDistanceSpentFoiling(getMarkPassingForLegStart().getTimePoint(),
+                            timePoint);
+        } else {
+            result = null;
+        }
+        return result;
+    }
+
+    @Override
+    public Duration getDurationFoiled(TimePoint at) {
+        final Duration result;
+        if (hasStartedLeg(at)) {
+            TimePoint timePoint = hasFinishedLeg(at) ? getMarkPassingForLegEnd().getTimePoint() : at;
+            BravoFixTrack<Competitor> track = getTrackedRace()
+                    .<BravoFix, BravoFixTrack<Competitor>> getSensorTrack(competitor, BravoFixTrack.TRACK_NAME);
+            result = track == null ? null
+                    : track.getTimeSpentFoiling(getMarkPassingForLegStart().getTimePoint(), timePoint);
+        } else {
+            result = null;
+        }
+        return result;
+    }
+
     @Override
     public Duration getEstimatedTimeToNextMark(TimePoint timePoint, WindPositionMode windPositionMode) {
         return getEstimatedTimeToNextMark(timePoint, windPositionMode, new LeaderboardDTOCalculationReuseCache(timePoint));

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/impl/TrackedRaceImpl.java

@@ -1212,7 +1212,50 @@ public abstract class TrackedRaceImpl extends TrackedRaceWithWindEssentials impl
     }
     
     private Distance getDistanceTraveled(Competitor competitor, TimePoint timePoint, boolean considerGateStart) {
-        final Distance result;
+        return getValueFromStartToTimePointOrEnd(competitor, timePoint, 
+                (from, to)->{
+                    final Distance result;
+                    final Distance preResult = getTrack(competitor).getDistanceTraveled(from, to);
+                    if (considerGateStart && preResult != null) {
+                        result = preResult.add(getAdditionalGateStartDistance(competitor, timePoint));
+                    } else {
+                        result = preResult;
+                    }
+                    return result;
+                });
+    }
+    
+    @Override
+    public Distance getDistanceFoiled(Competitor competitor, TimePoint timePoint) {
+        return getBravoValue(competitor, timePoint, BravoFixTrack::getDistanceSpentFoiling);
+    }
+
+    @Override
+    public Duration getDurationFoiled(Competitor competitor, TimePoint timePoint) {
+        return getBravoValue(competitor, timePoint, BravoFixTrack::getTimeSpentFoiling);
+    }
+    
+    @FunctionalInterface
+    private static interface BravoFromToValueCalculator<T> {
+        T getValue(BravoFixTrack<Competitor> bravoFixTrack, TimePoint from, TimePoint to);
+    }
+
+    private <T> T getBravoValue(Competitor competitor, TimePoint timePoint, BravoFromToValueCalculator<T> bravoValueCalculator) {
+        return getValueFromStartToTimePointOrEnd(competitor, timePoint, 
+                (from, to)->{
+                    final T result;
+                    final BravoFixTrack<Competitor> bravoFixTrack = getSensorTrack(competitor, BravoFixTrack.TRACK_NAME);
+                    if (bravoFixTrack != null) {
+                        result = bravoValueCalculator.getValue(bravoFixTrack, from, to);
+                    } else {
+                        result = null;
+                    }
+                    return result;
+                });
+    }
+
+    private <T> T getValueFromStartToTimePointOrEnd(Competitor competitor, TimePoint timePoint, Track.TimeRangeValueCalculator<T> valueCalculator) {
+        final T result;
         NavigableSet<MarkPassing> markPassings = getMarkPassings(competitor);
         try {
             lockForRead(markPassings);
@@ -1239,12 +1282,7 @@ public abstract class TrackedRaceImpl extends TrackedRaceWithWindEssentials impl
                 if (end == null) {
                     result = null;
                 } else {
-                    final Distance preResult = getTrack(competitor).getDistanceTraveled(markPassings.first().getTimePoint(), end);
-                    if (considerGateStart && preResult != null) {
-                        result = preResult.add(getAdditionalGateStartDistance(competitor, timePoint));
-                    } else {
-                        result = preResult;
-                    }
+                    result = valueCalculator.calculate(markPassings.first().getTimePoint(), end);
                 }
             }
             return result;

java/com.sap.sailing.gwt.ui.test/src/com/sap/sailing/gwt/ui/test/MockedTrackedRace.java

@@ -70,6 +70,7 @@ import com.sap.sailing.domain.tracking.WindStore;
 import com.sap.sailing.domain.tracking.WindTrack;
 import com.sap.sailing.domain.tracking.WindWithConfidence;
 import com.sap.sailing.domain.tracking.impl.WindTrackImpl;
+import com.sap.sse.common.Duration;
 import com.sap.sse.common.IsManagedByCache;
 import com.sap.sse.common.TimePoint;
 import com.sap.sse.common.Util;
@@ -406,6 +407,16 @@ public class MockedTrackedRace implements DynamicTrackedRace {
         return null;
     }
 
+    @Override
+    public Distance getDistanceFoiled(Competitor competitor, TimePoint timePoint) {
+        return null;
+    }
+
+    @Override
+    public Duration getDurationFoiled(Competitor competitor, TimePoint timePoint) {
+        return null;
+    }
+
     @Override
     public Distance getWindwardDistanceToCompetitorFarthestAhead(Competitor competitor, TimePoint timePoint, WindPositionMode windPositionMode) {
         return null;

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/home/desktop/places/whatsnew/resources/SailingAnalyticsNotes.html

@@ -13,6 +13,11 @@
                state of the currently opened page to get lost.
                After a sign out (and another page reload) the language preference will stop to take effect.
            </li>
+           <li>There are additional column types in the leaderboard that show per leg, per race and overall statistics
+               for distance foiled and duration foiled. This allows for quick competitor comparisons regarding these
+               figures which are so important for any foiling boat class. Note, that this feature is also available
+               on overall leaderboards, providing foiling stats across an entire season or event series.
+           </li>
         </ul>
         
         <h5 class="articleSubheadline">October 2017</h5>

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/home/shared/partials/anniversary/AnniversaryLegalNoticeBubbleContent.ui.xml

@@ -6,13 +6,13 @@
             padding: 0 1em !important;
             max-width: 80em;
         }
-        h2, .container > div, p > span:first-child {
+        .container > h2, .container > div, .container > p > span:first-child {
             text-transform: uppercase;
         }
-        .container > div, p > span:first-child {
+        .container > div, .container > p > span:first-child {
             text-decoration: underline;
         }
-        p > span:first-child:after {
+        .container > p > span:first-child:after {
             content: ":"
         }
     </ui:style>

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/settings/client/leaderboard/LeaderboardSettings.java

@@ -46,17 +46,17 @@ public abstract class LeaderboardSettings extends AbstractGenericSerializableSet
     @Override
     protected void addChildSettings() {
         isShowCompetitorNationality = new BooleanSetting("showCompetitorNationality", this, false);
-        List<DetailType> maneuverDetails = new ArrayList<DetailType>();
+        List<DetailType> maneuverDetails = new ArrayList<>();
         maneuverDetails.add(DetailType.TACK);
         maneuverDetails.add(DetailType.JIBE);
         maneuverDetails.add(DetailType.PENALTY_CIRCLE);
         maneuverDetailsToShow = new EnumSetSetting<>("maneuverDetailsToShow", this, maneuverDetails, DetailType::valueOf);
-        List<DetailType> legDetails = new ArrayList<DetailType>();
+        List<DetailType> legDetails = new ArrayList<>();
         legDetails.add(DetailType.DISTANCE_TRAVELED);
         legDetails.add(DetailType.AVERAGE_SPEED_OVER_GROUND_IN_KNOTS);
         legDetails.add(DetailType.RANK_GAIN);
         legDetailsToShow = new EnumSetSetting<>("legDetailsToShow", this, legDetails, DetailType::valueOf);
-        List<DetailType> raceDetails = new ArrayList<DetailType>();
+        List<DetailType> raceDetails = new ArrayList<>();
         raceDetails.add(DetailType.DISPLAY_LEGS);
         raceDetailsToShow = new EnumSetSetting<>("raceDetailsToShow", this, raceDetails, DetailType::valueOf);
         List<DetailType> overallDetails = new ArrayList<>();

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/DetailTypeFormatter.java

@@ -40,12 +40,20 @@ public class DetailTypeFormatter {
             return stringMessages.currentSpeedOverGroundInKnots();
         case CURRENT_RIDE_HEIGHT_IN_METERS:
             return stringMessages.currentOrAverageRideHeightInMeters();
+        case CURRENT_DISTANCE_FOILED_IN_METERS:
+            return stringMessages.currentDistanceFoiledInMeters();
+        case CURRENT_DURATION_FOILED_IN_SECONDS:
+            return stringMessages.currentDurationFoiled();
         case CURRENT_HEEL_IN_DEGREES:
             return stringMessages.currentHeelInDegree();
         case CURRENT_PITCH_IN_DEGREES:
             return stringMessages.currentPitchInDegree();
         case RACE_CURRENT_RIDE_HEIGHT_IN_METERS:
             return stringMessages.currentRideHeightInMeters();
+        case RACE_CURRENT_DURATION_FOILED_IN_SECONDS:
+            return stringMessages.currentDurationFoiled();
+        case RACE_CURRENT_DISTANCE_FOILED_IN_METERS:
+            return stringMessages.currentDistanceFoiledInMeters();
         case CURRENT_PORT_DAGGERBOARD_RAKE:
             return stringMessages.currentPortDaggerboardRake();
         case CURRENT_STBD_DAGGERBOARD_RAKE:
@@ -158,6 +166,10 @@ public class DetailTypeFormatter {
             return stringMessages.totalTimeSailedInSeconds();
         case TOTAL_AVERAGE_SPEED_OVER_GROUND:
             return stringMessages.totalAverageSpeedOverGround();
+        case TOTAL_DURATION_FOILED_IN_SECONDS:
+            return stringMessages.totalDurationFoiledInSeconds();
+        case TOTAL_DISTANCE_FOILED_IN_METERS:
+            return stringMessages.totalDistanceFoiledInMeters();
         case AVERAGE_MANEUVER_LOSS_IN_METERS:
             return stringMessages.averageManeuverLossInMeters();
         case AVERAGE_TACK_LOSS_IN_METERS:
@@ -188,8 +200,6 @@ public class DetailTypeFormatter {
             return stringMessages.beatAngle();
         case COURSE_OVER_GROUND_TRUE_DEGREES:
             return stringMessages.courseOverGroundTrueDegrees();
-        default:
-            break;
         }
         return null;
     }
@@ -241,7 +251,10 @@ public class DetailTypeFormatter {
         case DISTANCE_TO_START_LINE:
         case CURRENT_RIDE_HEIGHT_IN_METERS:
         case RACE_CURRENT_RIDE_HEIGHT_IN_METERS:
+        case RACE_CURRENT_DISTANCE_FOILED_IN_METERS:
         case CURRENT_DEPTH_IN_METERS:
+        case CURRENT_DISTANCE_FOILED_IN_METERS:
+        case TOTAL_DISTANCE_FOILED_IN_METERS:
             return stringMessages.metersUnit();
 
         case CURRENT_DEFLECTOR_IN_MILLIMETERS:
@@ -296,6 +309,9 @@ public class DetailTypeFormatter {
         case RACE_TIME_TRAVELED_REACHING:
         case RACE_TIME_TRAVELED_UPWIND:
         case TIME_TRAVELED:
+        case CURRENT_DURATION_FOILED_IN_SECONDS:
+        case RACE_CURRENT_DURATION_FOILED_IN_SECONDS:
+        case TOTAL_DURATION_FOILED_IN_SECONDS:
             return stringMessages.hhmmssUnit();
 
         // Cases for detail types without unit, so that an empty string is returned.
@@ -385,8 +401,16 @@ public class DetailTypeFormatter {
             return stringMessages.currentSpeedOverGroundInKnotsTooltip();
         case CURRENT_RIDE_HEIGHT_IN_METERS:
             return stringMessages.currentOrAverageRideHeightInMetersTooltip();
+        case CURRENT_DISTANCE_FOILED_IN_METERS:
+            return stringMessages.currentDistanceFoiledInMetersTooltip();
+        case CURRENT_DURATION_FOILED_IN_SECONDS:
+            return stringMessages.currentDurationFoiledTooltip();
         case RACE_CURRENT_RIDE_HEIGHT_IN_METERS:
             return stringMessages.currentRideHeightInMetersTooltip();
+        case RACE_CURRENT_DURATION_FOILED_IN_SECONDS:
+            return stringMessages.currentDurationFoiledTooltip();
+        case RACE_CURRENT_DISTANCE_FOILED_IN_METERS:
+            return stringMessages.currentDistanceFoiledInMetersTooltip();
         case CURRENT_PORT_DAGGERBOARD_RAKE:
             return stringMessages.currentPortDaggerboardRakeTooltip();
         case CURRENT_STBD_DAGGERBOARD_RAKE:
@@ -483,6 +507,10 @@ public class DetailTypeFormatter {
             return stringMessages.totalDistanceTraveledTooltip();
         case TOTAL_AVERAGE_SPEED_OVER_GROUND:
             return stringMessages.totalAverageSpeedOverGroundTooltip();
+        case TOTAL_DURATION_FOILED_IN_SECONDS:
+            return stringMessages.totalDurationFoiledInSecondsTooltip();
+        case TOTAL_DISTANCE_FOILED_IN_METERS:
+            return stringMessages.totalDistanceFoiledInMetersTooltip();
         case TIME_ON_TIME_FACTOR:
             return stringMessages.timeOnTimeFactorTooltip();
         case TIME_ON_DISTANCE_ALLOWANCE_IN_SECONDS_PER_NAUTICAL_MILE:

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/StringMessages.java

@@ -1972,4 +1972,12 @@ public interface StringMessages extends com.sap.sse.gwt.client.StringMessages,
     String currentDriftInDegreesTooltip();
     String currentDepthInMetersTooltip();
     String tonsUnit();
+    String currentDistanceFoiledInMeters();
+    String currentDurationFoiled();
+    String currentDistanceFoiledInMetersTooltip();
+    String currentDurationFoiledTooltip();
+    String totalDurationFoiledInSeconds();
+    String totalDistanceFoiledInMeters();
+    String totalDurationFoiledInSecondsTooltip();
+    String totalDistanceFoiledInMetersTooltip();
 }

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/StringMessages.properties

@@ -1956,4 +1956,12 @@ currentRudderInDegreesTooltip=Rudder angle; negative values mean to port, positi
 currentLeewayInDegreesTooltip=Leeway
 currentDriftInDegreesTooltip=Angle between heading and course over ground
 currentDepthInMetersTooltip=Water depth
-tonsUnit=t
+tonsUnit=t
+currentDistanceFoiledInMeters=Distance Foiled
+currentDurationFoiled=Time Foiled
+currentDistanceFoiledInMetersTooltip=Distance spent foiling in meters
+currentDurationFoiledTooltip=Time spent foiling
+totalDurationFoiledInSeconds=Total Time Foiled
+totalDistanceFoiledInMeters=Total Distance Foiled
+totalDurationFoiledInSecondsTooltip=Total time foiled, across the entire leaderboard
+totalDistanceFoiledInMetersTooltip=Total distance foiled, across the entire leaderboard

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/client/StringMessages_de.properties

@@ -1942,12 +1942,20 @@ currentTargetBoatspeedPercentageTooltip=Anteil der erreichten berechneten Zielge
 currentRakeInDegreesTooltip=Mastneigung
 currentForestayLoadTooltip=Gemessene Vorstagsspannung
 currentForestayPressureTooltip=Druck am Vorstag
-currentDeflectorPercentageTooltip=Prozentualer Anteil Abweiser (???)
-currentDeflectorInMillimetersTooltip=Abweiser Abstand (???)
+currentDeflectorPercentageTooltip=Prozentualer Anteil Deflektor
+currentDeflectorInMillimetersTooltip=Deflektor-Abstand
 currentTackAngleInDegreesTooltip=Berechneter optimaler Wendewinkel
 currentSetTooltip=Set (???)
 currentRudderInDegreesTooltip=Ruderwinkel; negative Werte bedeuten Ruder nach Backbord, positive Ruder nach Steuerbord
 currentLeewayInDegreesTooltip=Leeway (???)
 currentDriftInDegreesTooltip=Winkel zwischen Kurs durchs Wasser und Kurs über Grund
 currentDepthInMetersTooltip=Wassertiefe
-tonsUnit=t
+tonsUnit=t
+currentDistanceFoiledInMeters=Gefoilte Strecke
+currentDurationFoiled=Gefoilte Zeit
+currentDistanceFoiledInMetersTooltip=Gefoilte Strecke in Metern
+currentDurationFoiledTooltip=Gefoilte Zeit
+totalDurationFoiledInSeconds=Gesamt gefoilte Zeit
+totalDistanceFoiledInMeters=Gesamt gefoilte Strecke
+totalDurationFoiledInSecondsTooltip=Insgesamt gefoilte Zeit, über die gesamte Ergebnisliste kumuliert
+totalDistanceFoiledInMetersTooltip=Insgesamt gefoilte Strecke, über die gesamte Ergebnisliste kumuliert

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/leaderboard/LeaderboardPanel.java

@@ -1118,6 +1118,7 @@ public abstract class LeaderboardPanel<LS extends LeaderboardSettings> extends A
                 DetailType.RACE_CALCULATED_TIME_TRAVELED,
                 DetailType.RACE_CALCULATED_TIME_AT_ESTIMATED_ARRIVAL_AT_COMPETITOR_FARTHEST_AHEAD,
                 DetailType.RACE_CURRENT_SPEED_OVER_GROUND_IN_KNOTS, DetailType.RACE_CURRENT_RIDE_HEIGHT_IN_METERS,
+                DetailType.RACE_CURRENT_DISTANCE_FOILED_IN_METERS, DetailType.RACE_CURRENT_DURATION_FOILED_IN_SECONDS,
                 DetailType.RACE_DISTANCE_TO_COMPETITOR_FARTHEST_AHEAD_IN_METERS, DetailType.NUMBER_OF_MANEUVERS,
                 DetailType.DISPLAY_LEGS, DetailType.CURRENT_LEG,
                 DetailType.RACE_AVERAGE_ABSOLUTE_CROSS_TRACK_ERROR_IN_METERS,
@@ -1138,6 +1139,7 @@ public abstract class LeaderboardPanel<LS extends LeaderboardSettings> extends A
     public static DetailType[] getAvailableOverallDetailColumnTypes() {
         return new DetailType[] { DetailType.REGATTA_RANK, DetailType.TOTAL_DISTANCE_TRAVELED,
                 DetailType.TOTAL_AVERAGE_SPEED_OVER_GROUND, DetailType.TOTAL_TIME_SAILED_IN_SECONDS,
+                DetailType.TOTAL_DURATION_FOILED_IN_SECONDS, DetailType.TOTAL_DISTANCE_FOILED_IN_METERS,
                 DetailType.MAXIMUM_SPEED_OVER_GROUND_IN_KNOTS, DetailType.TIME_ON_TIME_FACTOR,
                 DetailType.TIME_ON_DISTANCE_ALLOWANCE_IN_SECONDS_PER_NAUTICAL_MILE };
     }
@@ -1206,6 +1208,14 @@ public abstract class LeaderboardPanel<LS extends LeaderboardSettings> extends A
                     new RideHeightColumn(DetailType.RACE_CURRENT_RIDE_HEIGHT_IN_METERS,
                             new RaceCurrentRideHeightInMeters(), LEG_COLUMN_HEADER_STYLE, LEG_COLUMN_STYLE,
                             LeaderboardPanel.this));
+            result.put(DetailType.RACE_CURRENT_DISTANCE_FOILED_IN_METERS,
+                    new FormattedDoubleDetailTypeColumn(DetailType.RACE_CURRENT_DISTANCE_FOILED_IN_METERS,
+                            new RaceDistanceFoiledInMeters(), LEG_COLUMN_HEADER_STYLE, LEG_COLUMN_STYLE,
+                            LeaderboardPanel.this));
+            result.put(DetailType.RACE_CURRENT_DURATION_FOILED_IN_SECONDS,
+                    new TotalTimeColumn(DetailType.RACE_CURRENT_DURATION_FOILED_IN_SECONDS,
+                            new RaceDurationFoiledInSeconds(), LEG_COLUMN_HEADER_STYLE, LEG_COLUMN_STYLE,
+                            LeaderboardPanel.this));
             result.put(DetailType.RACE_DISTANCE_TO_COMPETITOR_FARTHEST_AHEAD_IN_METERS,
                     new FormattedDoubleDetailTypeColumn(DetailType.RACE_DISTANCE_TO_COMPETITOR_FARTHEST_AHEAD_IN_METERS,
                             new RaceDistanceToCompetitorFarthestAheadInMeters(), LEG_COLUMN_HEADER_STYLE,
@@ -1347,7 +1357,7 @@ public abstract class LeaderboardPanel<LS extends LeaderboardSettings> extends A
         private class RaceAverageSpeedInKnots implements LegDetailField<Double> {
             @Override
             public Double get(LeaderboardRowDTO row) {
-                final Distance distanceTraveledInMeters = row.getDistanceTraveledInMeters(getRaceColumnName());
+                final Distance distanceTraveledInMeters = row.getDistanceTraveled(getRaceColumnName());
                 final Duration time = row.getTimeSailed(getRaceColumnName());
                 final Double result;
                 if (distanceTraveledInMeters != null && time != null) {
@@ -1537,11 +1547,37 @@ public abstract class LeaderboardPanel<LS extends LeaderboardSettings> extends A
         private class RaceDistanceTraveledInMeters implements LegDetailField<Double> {
             @Override
             public Double get(LeaderboardRowDTO row) {
-                Distance distanceForRaceColumn = row.getDistanceTraveledInMeters(getRaceColumnName());
+                Distance distanceForRaceColumn = row.getDistanceTraveled(getRaceColumnName());
                 return distanceForRaceColumn == null ? null : distanceForRaceColumn.getMeters();
             }
         }
 
+        /**
+         * Accumulates the distance foiled over all legs of a race
+         * 
+         * @author Axel Uhl (D043530)
+         */
+        private class RaceDistanceFoiledInMeters implements LegDetailField<Double> {
+            @Override
+            public Double get(LeaderboardRowDTO row) {
+                Distance distanceForRaceColumn = row.getDistanceFoiled(getRaceColumnName());
+                return distanceForRaceColumn == null ? null : distanceForRaceColumn.getMeters();
+            }
+        }
+
+        /**
+         * Accumulates the duration foiled over all legs of a race
+         * 
+         * @author Axel Uhl (D043530)
+         */
+        private class RaceDurationFoiledInSeconds implements LegDetailField<Double> {
+            @Override
+            public Double get(LeaderboardRowDTO row) {
+                Duration durationForRaceColumn = row.getDurationFoiled(getRaceColumnName());
+                return durationForRaceColumn == null ? null : durationForRaceColumn.asSeconds();
+            }
+        }
+
         private class RaceCalculatedTimeTraveledInSeconds implements LegDetailField<Double> {
             @Override
             public Double get(LeaderboardRowDTO row) {
@@ -2055,6 +2091,20 @@ public abstract class LeaderboardPanel<LS extends LeaderboardSettings> extends A
         }
     }
 
+    private static class TotalDistanceFoiledInMetersField implements LegDetailField<Double> {
+        @Override
+        public Double get(LeaderboardRowDTO row) {
+            return row.totalDistanceFoiledInMeters;
+        }
+    }
+
+    private static class TotalDurationFoiledInSecondsField implements LegDetailField<Double> {
+        @Override
+        public Double get(LeaderboardRowDTO row) {
+            return row.totalDurationFoiledInSeconds;
+        }
+    }
+
     private static class TimeOnTimeFactorColumn implements LegDetailField<Double> {
         @Override
         public Double get(LeaderboardRowDTO row) {
@@ -2096,6 +2146,10 @@ public abstract class LeaderboardPanel<LS extends LeaderboardSettings> extends A
         result.put(DetailType.MAXIMUM_SPEED_OVER_GROUND_IN_KNOTS,
                 new MaxSpeedOverallColumn(RACE_COLUMN_HEADER_STYLE, RACE_COLUMN_STYLE, this));
         result.put(DetailType.TOTAL_TIME_SAILED_IN_SECONDS, createOverallTimeTraveledColumn());
+        result.put(DetailType.TOTAL_DURATION_FOILED_IN_SECONDS, new TotalTimeColumn(DetailType.TOTAL_DURATION_FOILED_IN_SECONDS,
+                new TotalDurationFoiledInSecondsField(), RACE_COLUMN_HEADER_STYLE, RACE_COLUMN_STYLE, this));
+        result.put(DetailType.TOTAL_DISTANCE_FOILED_IN_METERS, new FormattedDoubleDetailTypeColumn(DetailType.TOTAL_DISTANCE_FOILED_IN_METERS,
+                new TotalDistanceFoiledInMetersField(), RACE_COLUMN_HEADER_STYLE, RACE_COLUMN_STYLE, this));
         result.put(DetailType.TIME_ON_TIME_FACTOR, new FormattedDoubleDetailTypeColumn(DetailType.TIME_ON_TIME_FACTOR,
                 new TimeOnTimeFactorColumn(), RACE_COLUMN_HEADER_STYLE, RACE_COLUMN_STYLE, this));
         result.put(DetailType.TIME_ON_DISTANCE_ALLOWANCE_IN_SECONDS_PER_NAUTICAL_MILE,

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/leaderboard/LegColumn.java

@@ -122,6 +122,20 @@ public class LegColumn extends ExpandableSortableColumn<String> {
         }
     }
     
+    private class CurrentDistanceFoiledInMeters extends AbstractLegDetailField<Double> {
+        @Override
+        protected Double getFromNonNullEntry(LegEntryDTO entry) {
+            return entry.currentDistanceFoiledInMeters;
+        }
+    }
+    
+    private class CurrentDurationFoiled extends AbstractLegDetailField<Double> {
+        @Override
+        protected Double getFromNonNullEntry(LegEntryDTO entry) {
+            return entry.currentDurationFoiledInSeconds;
+        }
+    }
+    
     private class EstimatedTimeToNextWaypointInSeconds extends AbstractLegDetailField<Double> {
         @Override
         protected Double getFromNonNullEntry(LegEntryDTO entry) {
@@ -272,6 +286,7 @@ public class LegColumn extends ExpandableSortableColumn<String> {
                 DetailType.GAP_CHANGE_SINCE_LEG_START_IN_SECONDS, DetailType.SIDE_TO_WHICH_MARK_AT_LEG_START_WAS_ROUNDED, 
                 DetailType.CURRENT_SPEED_OVER_GROUND_IN_KNOTS, DetailType.CURRENT_HEEL_IN_DEGREES,
                 DetailType.CURRENT_PITCH_IN_DEGREES, DetailType.CURRENT_RIDE_HEIGHT_IN_METERS,
+                DetailType.CURRENT_DISTANCE_FOILED_IN_METERS, DetailType.CURRENT_DURATION_FOILED_IN_SECONDS,
                 DetailType.WINDWARD_DISTANCE_TO_GO_IN_METERS, DetailType.NUMBER_OF_MANEUVERS,
                 DetailType.ESTIMATED_TIME_TO_NEXT_WAYPOINT_IN_SECONDS, DetailType.VELOCITY_MADE_GOOD_IN_KNOTS,
                 DetailType.TIME_TRAVELED, DetailType.CORRECTED_TIME_TRAVELED, DetailType.AVERAGE_ABSOLUTE_CROSS_TRACK_ERROR_IN_METERS,
@@ -299,6 +314,10 @@ public class LegColumn extends ExpandableSortableColumn<String> {
                         detailHeaderStyle, detailColumnStyle, leaderboardPanel));
         result.put(DetailType.CURRENT_RIDE_HEIGHT_IN_METERS, new RideHeightColumn(DetailType.CURRENT_RIDE_HEIGHT_IN_METERS,
                 new CurrentRideHeightInMeters(), detailHeaderStyle, detailColumnStyle, leaderboardPanel));
+        result.put(DetailType.CURRENT_DISTANCE_FOILED_IN_METERS, new FormattedDoubleDetailTypeColumn(DetailType.CURRENT_DISTANCE_FOILED_IN_METERS,
+                new CurrentDistanceFoiledInMeters(), detailHeaderStyle, detailColumnStyle, leaderboardPanel));
+        result.put(DetailType.CURRENT_DURATION_FOILED_IN_SECONDS, new TotalTimeColumn(DetailType.CURRENT_DURATION_FOILED_IN_SECONDS,
+                new CurrentDurationFoiled(), detailHeaderStyle, detailColumnStyle, leaderboardPanel));
         result.put(DetailType.ESTIMATED_TIME_TO_NEXT_WAYPOINT_IN_SECONDS,
                 new FormattedDoubleDetailTypeColumn(DetailType.ESTIMATED_TIME_TO_NEXT_WAYPOINT_IN_SECONDS, new EstimatedTimeToNextWaypointInSeconds(),
                         detailHeaderStyle, detailColumnStyle, leaderboardPanel));

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/leaderboard/TotalTimeColumn.java

@@ -4,6 +4,12 @@ import com.sap.sailing.domain.common.DetailType;
 import com.sap.sailing.domain.common.dto.LeaderboardRowDTO;
 import com.sap.sailing.gwt.ui.client.DurationAsHoursMinutesSecondsFormatter;
 
+/**
+ * Displays a {@code double} value that is assumed to represent seconds as a time in hours, minutes and seconds.
+ * 
+ * @author Axel Uhl (D043530)
+ *
+ */
 public class TotalTimeColumn extends FormattedDoubleDetailTypeColumn {
 
     protected TotalTimeColumn(DetailType detailType, LegDetailField<Double> field, String headerStyle,

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/server/SailingServiceImpl.java

@@ -6696,6 +6696,8 @@ public class SailingServiceImpl extends ProxiedRemoteServiceServlet implements S
             }
             if (hasBravoTrack) {
                 availableDetailsTypes.add(DetailType.RACE_CURRENT_RIDE_HEIGHT_IN_METERS);
+                availableDetailsTypes.add(DetailType.RACE_CURRENT_DURATION_FOILED_IN_SECONDS);
+                availableDetailsTypes.add(DetailType.RACE_CURRENT_DISTANCE_FOILED_IN_METERS);
                 availableDetailsTypes.add(DetailType.CURRENT_HEEL_IN_DEGREES);
                 availableDetailsTypes.add(DetailType.CURRENT_PITCH_IN_DEGREES);
             }

java/com.sap.sailing.server/src/com/sap/sailing/server/masterdata/DummyTrackedRace.java

@@ -59,6 +59,7 @@ import com.sap.sailing.domain.tracking.WindStore;
 import com.sap.sailing.domain.tracking.WindWithConfidence;
 import com.sap.sailing.domain.tracking.impl.DynamicTrackedRegattaImpl;
 import com.sap.sailing.domain.tracking.impl.EmptyWindStore;
+import com.sap.sse.common.Duration;
 import com.sap.sse.common.IsManagedByCache;
 import com.sap.sse.common.TimePoint;
 import com.sap.sse.common.Util;
@@ -359,6 +360,16 @@ public class DummyTrackedRace extends TrackedRaceWithWindEssentials {
         return null;
     }
 
+    @Override
+    public Distance getDistanceFoiled(Competitor competitor, TimePoint timePoint) {
+        return null;
+    }
+
+    @Override
+    public Duration getDurationFoiled(Competitor competitor, TimePoint timePoint) {
+        return null;
+    }
+
     @Override
     public Distance getWindwardDistanceToCompetitorFarthestAhead(Competitor competitor, TimePoint timePoint,
             WindPositionMode windPositionMode) {

java/com.sap.sse.gwt/src/com/sap/sse/gwt/client/controls/languageselect/LanguageSelector.ui.xml

@@ -29,6 +29,12 @@
             background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHZlcnNpb249JzEuMScgaGVpZ2h0PScxOHB4JyB3aWR0aD0nMTZweCc+PHRleHQgeD0nMCcgeT0nMTUnIGZpbGw9JyNlZmFhMDAnIGZvbnQtc2l6ZT0nMTYnPiYjOTY2MDs8L3RleHQ+PC9zdmc+");
             background-position: right center;
             background-repeat: no-repeat;
+            /* Fix for old firefox versions to make the native arrow disappear: */
+            text-overflow: "";
+            text-indent: 0.01px;
+        }
+        .languageSelection::-ms-expand {
+            display: none;
         }
     </ui:style>
     <g:FlowPanel tag="span">