added urn registration to known metadata keys, changed Integer parsing from excel sheet

src/main/java/org/gesis/dda/publishing/domain/impl/SmartExcelSheetBundlesSetSource.java

@@ -177,6 +177,7 @@ public class SmartExcelSheetBundlesSetSource implements BundlesSetSource {
                 case "ssoar.contributor.institution": result = extractCleanedMetadatum(metadatumKey, cell); break;
                 case "ssoar.licence.dfg": result = extractBinaryMetadatum(metadatumKey, cell, "true", null); break;
                 case "ssoar.wgl.collection": result = extractBinaryMetadatum(metadatumKey, cell, "true", null); break;
+                case "ssoar.urn.registration": result = extractCleanedMetadatum(metadatumKey, cell); break;
                 default: result = new HashSet<>();
             }
         }
@@ -256,8 +257,15 @@ public class SmartExcelSheetBundlesSetSource implements BundlesSetSource {
             if ( isNotBlank(rawValue) ) {
                 Metadatum metadatum;
                 try {
-                    int intValue = (int) Double.parseDouble(rawValue);
+                    //int intValue = (int) Double.parseDouble(rawValue);
+                	int intValue = Integer.parseInt(rawValue.trim());
                     String intString = Integer.toString(intValue);
+                    if (intString.contains(".0")) {
+                    	intString = intString.replace(".0", "");
+                    }
+                    if (intString.contains("\"")) {
+                    	intString = intString.replaceAll("[^\\d]", "");
+                    }
                     metadatum = new SimpleMetadatum(metadatumKey, intString);
                 }
                 catch (Throwable t) {