fixing bug 3721 by restricting the number of wind fixes delivered through the /wind REST API to 10,000

Change-Id: I6d0f912667bd31f33d8e01e60d340cc3a03ead29

java/com.sap.sailing.server.gateway/src/com/sap/sailing/server/gateway/jaxrs/api/DefaultWindTrackJsonSerializer.java

@@ -22,6 +22,20 @@ public class DefaultWindTrackJsonSerializer implements WindTrackJsonSerializer {
     private TimePoint toTime;
     private WindSource windSource;
     
+    /**
+     * -1 means unlimited.
+     */
+    private final int maxNumberOfFixes;
+    
+    public DefaultWindTrackJsonSerializer(int maxNumberOfFixes) {
+        super();
+        this.maxNumberOfFixes = maxNumberOfFixes;
+    }
+    
+    public DefaultWindTrackJsonSerializer() {
+        this(-1);
+    }
+
     public JSONObject serialize(WindTrack windTrack) {
         JSONObject result = new JSONObject();
         JSONArray jsonWindFixes = new JSONArray();
@@ -31,7 +45,8 @@ public class DefaultWindTrackJsonSerializer implements WindTrackJsonSerializer {
         windTrack.lockForRead();
         try {
             Iterator<Wind> windIter = windTrack.getFixesIterator(fromTime, /* inclusive */true, toTime, /* inclusive */ false);
-            while (windIter.hasNext()) {
+            int count = 0;
+            while ((maxNumberOfFixes == -1 || count<maxNumberOfFixes) && windIter.hasNext()) {
                 fixes.add(windIter.next());
             }
         } finally {

java/com.sap.sailing.server.gateway/src/com/sap/sailing/server/gateway/jaxrs/api/RegattasResource.java

@@ -719,7 +719,7 @@ public class RegattasResource extends AbstractSailingServerResource {
                 from = Util.getLatestOfTimePoints(from, trackedRace.getStartOfTracking());
                 to = Util.getEarliestOfTimePoints(to, Util.getEarliestOfTimePoints(trackedRace.getEndOfTracking(), trackedRace.getTimePointOfNewestEvent()));
                 TrackedRaceJsonSerializer serializer = new TrackedRaceJsonSerializer(
-                        new DefaultWindTrackJsonSerializer());
+                        new DefaultWindTrackJsonSerializer(/* maxNumberOfFixes */ 10000));
                 serializer.setWindSource(windSource);
                 serializer.setWindSourceId(windSourceId);
                 serializer.setFromTime(from);