fix issue with upload field in xml export

dmp-backend/web/src/main/java/eu/eudat/logic/utilities/documents/xml/datasetProfileXml/ExportXmlBuilderDatasetProfile.java

@@ -246,6 +246,19 @@ public class ExportXmlBuilderDatasetProfile {
                             }
                         }
                         break;
+                    case UPLOAD:
+                        UploadData uploadDataObject = (UploadData) field.getData();
+                        dataOut.setAttribute("label", uploadDataObject.getLabel());
+                        dataOut.setAttribute("maxFileSizeInMB", String.valueOf(uploadDataObject.getMaxFileSizeInMB()));
+                        Element types = element.createElement("types");
+                        uploadDataObject.getTypes().forEach(type -> {
+                            Element optionChild = element.createElement("option");
+                            optionChild.setAttribute("label", type.getLabel());
+                            optionChild.setAttribute("value", type.getValue());
+                            types.appendChild(optionChild);
+                        });
+                        dataOut.appendChild(types);
+                        break;
                     case BOOLEAN_DECISION:
                         BooleanDecisionData booleanDecisionDataObject = (BooleanDecisionData) field.getData();
                         dataOut.setAttribute("label", booleanDecisionDataObject.getLabel());

dmp-backend/web/src/main/java/eu/eudat/models/data/components/commons/datafield/UploadData.java

@@ -83,7 +83,13 @@ public class UploadData extends FieldData<UploadData> {
                 this.types.add(newOption);
             }
             this.setLabel(((Map<String, String>) data).get("label"));
-            this.setMaxFileSizeInMB(((Map<String, Integer>) data).get("maxFileSizeInMB"));
+            Object maxFileSizeInMB = ((Map<String, Object>) data).get("maxFileSizeInMB");
+            if(maxFileSizeInMB instanceof String){ // template export
+                this.setMaxFileSizeInMB(Integer.valueOf((String)maxFileSizeInMB));
+            }
+            else if(maxFileSizeInMB instanceof Integer){ // template preview
+                this.setMaxFileSizeInMB((Integer)maxFileSizeInMB);
+            }
         }
         return this;
     }