Fix issue in updating datacenter

Found a hibernate cascade issue and was fixed by reuse the existing collection instaed of creating a new one in updating the datacenter entity

sge-backend/src/main/java/com/sgs/graphql/dataCenter/mutation/mapper/DataCenterMapper.java

@@ -31,10 +31,10 @@ public class DataCenterMapper extends BaseCreateUpdateMapper<DataCenter, DataCen
     private final ActivitySubUnitService activitySubUnitService;
 
     @Autowired
-    public DataCenterMapper(AreaService areaService, SectorService sectorService, 
-                           SubSectorService subSectorService, EmissionSourceService emissionSourceService,
-                           EmissionScopeService emissionScopeService, ConsuptionUnitService consuptionUnitService,
-                           ActivitySubUnitService activitySubUnitService) {
+    public DataCenterMapper(AreaService areaService, SectorService sectorService,
+            SubSectorService subSectorService, EmissionSourceService emissionSourceService,
+            EmissionScopeService emissionScopeService, ConsuptionUnitService consuptionUnitService,
+            ActivitySubUnitService activitySubUnitService) {
         this.areaService = areaService;
         this.sectorService = sectorService;
         this.subSectorService = subSectorService;
@@ -47,68 +47,71 @@ public class DataCenterMapper extends BaseCreateUpdateMapper<DataCenter, DataCen
     @Override
     public DataCenter toEntity(DataCenterCreateInput input) {
         DataCenter entity = new DataCenter();
-        
+
         // Basic fields
         entity.setDataCenter(input.getDataCenter());
         entity.setExternalId(input.getExternalId());
         entity.setNumber(input.getNumber());
         entity.setConsuptionAmount(input.getConsuptionAmount());
-        
+
         // Convert ID references to entities
         if (input.getAreaId() != null) {
             entity.setArea(areaService.findById(input.getAreaId()).orElse(null));
         }
-        
+
         if (input.getSectorId() != null) {
             entity.setSector(sectorService.findById(input.getSectorId()).orElse(null));
         }
-        
+
         if (input.getSubSectorId() != null) {
             entity.setSubSector(subSectorService.findById(input.getSubSectorId()).orElse(null));
         }
-        
+
         if (input.getEmissionScopeId() != null) {
             entity.setEmissionScope(emissionScopeService.findById(input.getEmissionScopeId()).orElse(null));
         }
-        
+
         if (input.getActivitySubUnitId() != null) {
             entity.setActivitySubUnit(activitySubUnitService.findById(input.getActivitySubUnitId()).orElse(null));
         }
-        
+
         // New attributes
         entity.setAyposURL(input.getAyposURL());
         entity.setAddress(input.getAddress());
         entity.setLatitude(input.getLatitude());
         entity.setLongitude(input.getLongitude());
-        
+
         // Handle multiple emission sources if provided
         if (input.getDataCenterEmissionSources() != null && !input.getDataCenterEmissionSources().isEmpty()) {
             List<DataCenterEmissionSource> dataCenterEmissionSources = new ArrayList<>();
-            
+
             for (DataCenterEmissionSourceInput emissionSourceInput : input.getDataCenterEmissionSources()) {
                 DataCenterEmissionSource dcEmissionSource = new DataCenterEmissionSource();
                 dcEmissionSource.setDataCenter(entity);
-                
+
                 // Set EmissionSource
                 if (emissionSourceInput.getEmissionSourceId() != null) {
-                    dcEmissionSource.setEmissionSource(emissionSourceService.findById(UUID.fromString(emissionSourceInput.getEmissionSourceId())).orElse(null));
+                    dcEmissionSource.setEmissionSource(emissionSourceService
+                            .findById(UUID.fromString(emissionSourceInput.getEmissionSourceId())).orElse(null));
                 }
-                
+
                 // Set ConsuptionUnit
                 if (emissionSourceInput.getConsuptionUnitId() != null) {
-                    dcEmissionSource.setConsuptionUnit(consuptionUnitService.findById(UUID.fromString(emissionSourceInput.getConsuptionUnitId())).orElse(null));
+                    dcEmissionSource.setConsuptionUnit(consuptionUnitService
+                            .findById(UUID.fromString(emissionSourceInput.getConsuptionUnitId())).orElse(null));
                 }
-                
+
                 // Set optional fields
-                dcEmissionSource.setIsDefault(emissionSourceInput.getIsDefault() != null ? emissionSourceInput.getIsDefault() : false);
+                dcEmissionSource.setIsDefault(
+                        emissionSourceInput.getIsDefault() != null ? emissionSourceInput.getIsDefault() : false);
                 dcEmissionSource.setPercentage(emissionSourceInput.getPercentage());
-                
+
                 dataCenterEmissionSources.add(dcEmissionSource);
             }
-            
+
             entity.setDataCenterEmissionSources(dataCenterEmissionSources);
         }
-        
+
         return entity;
     }
 
@@ -118,83 +121,86 @@ public class DataCenterMapper extends BaseCreateUpdateMapper<DataCenter, DataCen
         if (input.getDataCenter() != null) {
             entity.setDataCenter(input.getDataCenter());
         }
-        
+
         if (input.getExternalId() != null) {
             entity.setExternalId(input.getExternalId());
         }
-        
+
         if (input.getNumber() != null) {
             entity.setNumber(input.getNumber());
         }
-        
+
         if (input.getConsuptionAmount() != null) {
             entity.setConsuptionAmount(input.getConsuptionAmount());
         }
-        
+
         // Update relationships only if provided
         if (input.getAreaId() != null) {
             entity.setArea(areaService.findById(input.getAreaId()).orElse(null));
         }
-        
+
         if (input.getSectorId() != null) {
             entity.setSector(sectorService.findById(input.getSectorId()).orElse(null));
         }
-        
+
         if (input.getSubSectorId() != null) {
             entity.setSubSector(subSectorService.findById(input.getSubSectorId()).orElse(null));
         }
-        
+
         if (input.getEmissionScopeId() != null) {
             entity.setEmissionScope(emissionScopeService.findById(input.getEmissionScopeId()).orElse(null));
         }
-        
+
         if (input.getActivitySubUnitId() != null) {
             entity.setActivitySubUnit(activitySubUnitService.findById(input.getActivitySubUnitId()).orElse(null));
         }
-        
+
         // Handle multiple emission sources update if provided
         if (input.getDataCenterEmissionSources() != null) {
-            // Clear existing emission sources and add new ones
+            // Clear existing emission sources from the managed collection
             entity.getDataCenterEmissionSources().clear();
-            
-            List<DataCenterEmissionSource> dataCenterEmissionSources = new ArrayList<>();
+
+            // Add new emission sources to the same managed collection
             for (DataCenterEmissionSourceInput emissionSourceInput : input.getDataCenterEmissionSources()) {
                 DataCenterEmissionSource dcEmissionSource = new DataCenterEmissionSource();
                 dcEmissionSource.setDataCenter(entity);
-                
+
                 if (emissionSourceInput.getEmissionSourceId() != null) {
-                    dcEmissionSource.setEmissionSource(emissionSourceService.findById(UUID.fromString(emissionSourceInput.getEmissionSourceId())).orElse(null));
+                    dcEmissionSource.setEmissionSource(emissionSourceService
+                            .findById(UUID.fromString(emissionSourceInput.getEmissionSourceId())).orElse(null));
                 }
-                
+
                 if (emissionSourceInput.getConsuptionUnitId() != null) {
-                    dcEmissionSource.setConsuptionUnit(consuptionUnitService.findById(UUID.fromString(emissionSourceInput.getConsuptionUnitId())).orElse(null));
+                    dcEmissionSource.setConsuptionUnit(consuptionUnitService
+                            .findById(UUID.fromString(emissionSourceInput.getConsuptionUnitId())).orElse(null));
                 }
-                
-                dcEmissionSource.setIsDefault(emissionSourceInput.getIsDefault() != null ? emissionSourceInput.getIsDefault() : false);
+
+                dcEmissionSource.setIsDefault(
+                        emissionSourceInput.getIsDefault() != null ? emissionSourceInput.getIsDefault() : false);
                 dcEmissionSource.setPercentage(emissionSourceInput.getPercentage());
-                
-                dataCenterEmissionSources.add(dcEmissionSource);
+
+                // Add to the existing managed collection instead of creating a new one
+                entity.getDataCenterEmissionSources().add(dcEmissionSource);
             }
-            entity.setDataCenterEmissionSources(dataCenterEmissionSources);
         }
-        
+
         // New attributes (partial update - only if provided)
         if (input.getAyposURL() != null) {
             entity.setAyposURL(input.getAyposURL());
         }
-        
+
         if (input.getAddress() != null) {
             entity.setAddress(input.getAddress());
         }
-        
+
         if (input.getLatitude() != null) {
             entity.setLatitude(input.getLatitude());
         }
-        
+
         if (input.getLongitude() != null) {
             entity.setLongitude(input.getLongitude());
         }
-        
+
         return entity;
     }
 }