- Active workaround for "null" ResourceSchedule hyperperiod

org.fortiss.af3.schedule.ui/trunk/src/org/fortiss/af3/schedule/ui/ganttchartview/ScheduleViewGraphModel.java

@@ -26,12 +26,15 @@ import static org.fortiss.af3.schedule.ui.ganttchartview.ScheduleModelElementToD
 import static org.fortiss.af3.schedule.ui.ganttchartview.ScheduleModelElementToDraw.drawScheduleModelElement;
 import static org.fortiss.af3.schedule.ui.ganttchartview.ScheduleViewColors.getColor;
 import static org.fortiss.af3.schedule.ui.ganttchartview.ScheduleViewLayoutData.DIAGRAM_OFFSET_Y;
+import static org.fortiss.af3.schedule.utils.MathUtils.lcmBigDecimalCollection;
+import static org.fortiss.af3.schedule.utils.ScheduleUtils.TOLERANCE;
 
 import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.swt.SWT;
@@ -133,14 +136,15 @@ public class ScheduleViewGraphModel {
 
 			BigDecimal roundOffset = BigDecimal.ZERO;
 			BigDecimal schedulePeriod = ScheduleUtils.getHyperPeriod(schedule);
-			// if(schedulePeriod == null) {
-			// schedulePeriod =
-			// lcmBigDecimalCollection(
-			// schedule.getResourceAllocationList().stream()
-			// .map(r -> ScheduleUtils.getPeriod(r))
-			// .filter(p -> p != null).collect(Collectors.toList()),
-			// TOLERANCE);
-			// }
+			// TODO Check whether to remove this workaround
+			if(schedulePeriod == null) {
+				schedulePeriod =
+						lcmBigDecimalCollection(
+								schedule.getResourceAllocationList().stream()
+										.map(r -> ScheduleUtils.getPeriod(r))
+										.filter(p -> p != null).collect(Collectors.toList()),
+								TOLERANCE);
+			}
 			if(schedulePeriod != null && schedulePeriod.compareTo(BigDecimal.ZERO) == 1) {
 				while(roundOffset.compareTo(scheduleModel.getMajorFrame()) == -1) {
 					for(ResourceAllocation resourceAllocation : schedule