updated example file and code to line up

java/hello-world/src/main/java/org/acme/schooltimetabling/helperClasses/ScheduleConfig.java

@@ -72,34 +72,36 @@ public static void loadConfig(String yamlPath){
             Yaml yaml = new Yaml();
             HOLDER.scheduleConfig = yaml.loadAs(inputStream, ScheduleConfig.class);
 
-            //BitSet setup for times we want to compress into
-            EnumSet<Days> MTWRF = EnumSet.allOf(Days.class);
-            DateTimeFormatter formatter = DateTimeFormatter.ofPattern("h:mma");
-            LocalTime startTime = LocalTime.parse(HOLDER.scheduleConfig.compressStart, formatter);
-            LocalTime endTime = LocalTime.parse(HOLDER.scheduleConfig.compressEnd, formatter);
-            //normalize times
-            startTime = roundToNearestHalfHour(startTime);
-            endTime = roundToNearestHalfHour(endTime);
-            if(startTime.isAfter(endTime)){
-                LOGGER.error("The start time for the compressed start is after the end time; Exiting program");
-                System.exit(1);
+            if(HOLDER.scheduleConfig.compressStart != null && HOLDER.scheduleConfig.compressEnd != null) {//BitSet setup for times we want to compress into
+                EnumSet<Days> MTWRF = EnumSet.allOf(Days.class);
+                DateTimeFormatter formatter = DateTimeFormatter.ofPattern("h:mma");
+                LocalTime startTime = LocalTime.parse(HOLDER.scheduleConfig.compressStart, formatter);
+                LocalTime endTime = LocalTime.parse(HOLDER.scheduleConfig.compressEnd, formatter);
+                //normalize times
+                startTime = roundToNearestHalfHour(startTime);
+                endTime = roundToNearestHalfHour(endTime);
+                if (startTime.isAfter(endTime)) {
+                    LOGGER.error("The start time for the compressed start is after the end time; Exiting program");
+                    System.exit(1);
+                }
+                //get number of 30 minute blocks
+                long numBlcks = Duration.between(startTime, endTime).toMinutes() / 30;
+                final int bsSizeRep = 150;
+                BitSet buildCmprsIn = new BitSet(bsSizeRep);
+                buildCmprsIn.or(BitSetHelper.timeSlotBitSet(startTime, (int) numBlcks, MTWRF));
+                BitSet buildCmprsOut = (BitSet) buildCmprsIn.clone();
+                buildCmprsOut.flip(0, bsSizeRep);
+
+                HOLDER.scheduleConfig.cpmrsInBs = buildCmprsIn;
+                HOLDER.scheduleConfig.cmprsOutBs = buildCmprsOut;
             }
-            //get number of 30 minute blocks
-            long numBlcks = Duration.between(startTime,endTime).toMinutes() / 30;
-            final int bsSizeRep = 150;
-            BitSet buildCmprsIn = new BitSet(bsSizeRep);
-            buildCmprsIn.or(BitSetHelper.timeSlotBitSet(startTime, (int) numBlcks, MTWRF));
-            BitSet buildCmprsOut = (BitSet) buildCmprsIn.clone();
-            buildCmprsOut.flip(0, bsSizeRep);
-
-            HOLDER.scheduleConfig.cpmrsInBs = buildCmprsIn;
-            HOLDER.scheduleConfig.cmprsOutBs = buildCmprsOut;
         } catch (Exception e){
             final int PROGRAM_FAILURE = 1;
             LOGGER.error("Program is terminating. Couldn't read the yaml file");
             LOGGER.error(String.format("Program assumes yaml file is located at '%s' int the resources directory",
                     yamlPath));
             LOGGER.error(String.format("Related error: %s", e.getMessage()));
+            e.printStackTrace();
             System.exit(PROGRAM_FAILURE);
         }
     }

java/hello-world/src/main/java/org/acme/schooltimetabling/solver/TimetableConstraintProvider.java

@@ -575,13 +575,23 @@ Constraint inPrimeTime(ConstraintFactory constraintFactory){
                 .asConstraint("Penalizing for being in prime time");
     }
 
+
+    /**
+     * This constraint is used when we choose the "Aggressive" version of the solver that aims to compress and REWARD
+     * time that is in the time interval specified in the configuration file
+     */
     Constraint inBestTime(ConstraintFactory constraintFactory){
         return constraintFactory.forEach(Lesson.class)
                 .filter(lesson -> lesson.maskInCmprs().cardinality() > 0)
                 .reward(HardMediumSoftScore.ONE_SOFT)
                 .asConstraint("Reward time in preferred time interval");
     }
 
+
+    /**
+     * This constraint is used when we choose the "Aggressive" version of the solver that aims to compress and PENALIZE
+     * time that is in the time interval specified in the configuration file
+     */
     Constraint outBestTime(ConstraintFactory constraintFactory){
         return constraintFactory.forEach(Lesson.class)
                 .filter(lesson -> lesson.maskOutCmprs().cardinality() > 0)

java/hello-world/src/main/resources/constants/config.example.yaml

@@ -4,9 +4,9 @@ prevTerm: "2264"
 seasonTerm: "fall"
 testing: false
 useApi: true
+aggressiveChoice: "AGGRESSIVE_PENALTY"
 # ------- Optional -------
 # this setting changes how we model the PrimeTime constraint
-aggressiveChoice: "AGGRESSIVE_PENALTY"
 compressStart: "7:00AM"
 compressEnd: "6:00PM"
 prescheduledFileName: "PrescheduledTimes_ExampleFile.example.json"