finished OneDesignRankingMetric implementation of getTimeToImprove

java/com.sap.sailing.domain/src/com/sap/sailing/domain/ranking/OneDesignRankingMetric.java

@@ -32,10 +32,9 @@ public class OneDesignRankingMetric implements RankingMetric<Distance> {
     public Duration getTimeToImprove(TrackedRace trackedRace, Competitor trailing, Competitor leading,
             TimePoint timePoint, WindLegTypeAndLegBearingCache cache) {
         final Duration result;
-        // TODO find the last leg both competitors have already started and compute the gap in that leg;
-        final TrackedLegOfCompetitor tlocTrailing = null;
-        if (tlocTrailing != null) {
-            result = tlocTrailing.getGapToLeader(timePoint, leading, WindPositionMode.LEG_MIDDLE, cache);
+        final TrackedLegOfCompetitor currentLeg = trackedRace.getCurrentLeg(trailing, timePoint);
+        if (currentLeg != null) {
+            result = currentLeg.getGapToLeader(timePoint, leading, WindPositionMode.LEG_MIDDLE, cache);
         } else {
             result = null;
         }

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

@@ -167,7 +167,7 @@ public interface TrackedLegOfCompetitor extends Serializable {
     Duration getGapToLeader(TimePoint timePoint, Competitor leaderInLegAtTimePoint, WindPositionMode windPositionMode) throws NoWindException;
 
     /**
-     * Same as {@link #getGapToLeaderInSeconds(TimePoint, Competitor)}, only that an additional cache is used
+     * Same as {@link #getGapToLeader(TimePoint, Competitor, WindPositionMode)}, only that an additional cache is used
      * to avoid redundant evaluations of leg types and wind field information across various calculations that
      * all can use the same basic information.
      */