Fixed SORMAS-Foundation#3295

Author: MateStrysewske

sormas-api/src/main/java/de/symeda/sormas/api/i18n/Strings.java

@@ -158,6 +158,7 @@ public interface Strings {
 	String entityUser = "entityUser";
 	String epiWeek = "epiWeek";
 	String errorAccessDenied = "errorAccessDenied";
+	String errorCampaignDiagramTotalsCalculationError = "errorCampaignDiagramTotalsCalculationError";
 	String errorCaseDuplicateDeletion = "errorCaseDuplicateDeletion";
 	String errorCaseMerging = "errorCaseMerging";
 	String errorDeletingDocumentTemplate = "errorDeletingDocumentTemplate";

sormas-api/src/main/resources/strings.properties

@@ -241,6 +241,7 @@ errorFileNotFound = File '%s' not found
 errorReadingTemplate = Error reading template '%s'
 errorProcessingTemplate = Error processing template '%s'
 errorSormasToSormasNotEditable = Readonly data can not be shared.
+errorCampaignDiagramTotalsCalculationError = At least part of the percentage values for the diagram '%s' could not be calculated. Please check the diagram definitions for errors.
 
 # headings
 headingAccessDenied = Access denied

sormas-ui/src/main/java/de/symeda/sormas/ui/dashboard/campaigns/CampaignDashboardDiagramComponent.java

@@ -1,5 +1,7 @@
 package de.symeda.sormas.ui.dashboard.campaigns;
 
+import static com.vaadin.ui.Notification.Type.ERROR_MESSAGE;
+
 import java.math.BigDecimal;
 import java.math.RoundingMode;
 import java.util.ArrayList;
@@ -13,13 +15,15 @@
 
 import org.apache.commons.text.StringEscapeUtils;
 
+import com.vaadin.ui.Notification;
 import com.vaadin.ui.VerticalLayout;
 
 import de.symeda.sormas.api.campaign.diagram.CampaignDiagramDataDto;
 import de.symeda.sormas.api.campaign.diagram.CampaignDiagramDefinitionDto;
 import de.symeda.sormas.api.campaign.diagram.CampaignDiagramSeries;
 import de.symeda.sormas.api.i18n.Captions;
 import de.symeda.sormas.api.i18n.I18nProperties;
+import de.symeda.sormas.api.i18n.Strings;
 import de.symeda.sormas.ui.highcharts.HighChart;
 
 @SuppressWarnings("serial")
@@ -178,11 +182,17 @@ public void buildDiagramChart(String title) {
 			for (Object axisKey : axisKeys) {
 				if (seriesData.containsKey(axisKey)) {
 					if (showPercentages && totalValuesMap != null) {
-						double totalValue = totalValuesMap.get(
+						Double totalValue = totalValuesMap.get(
 							new CampaignDashboardTotalsReference(
 								seriesData.get(axisKey).getGroupingKey(),
 								totalValuesWithoutStacks ? null : series.getStack()));
-						if (totalValue > 0) {
+						if (totalValue == null) {
+							Notification.show(
+								String.format(
+									I18nProperties.getString(Strings.errorCampaignDiagramTotalsCalculationError),
+									diagramDefinition.getDiagramCaption()),
+								ERROR_MESSAGE);
+						} else if (totalValue > 0) {
 							hcjs.append(
 								BigDecimal.valueOf(seriesData.get(axisKey).getValueSum().doubleValue() / totalValue * 100)
 									.setScale(2, RoundingMode.HALF_UP)