when returning elements type can be comma separated list

rest-api/src/main/java/lcsb/mapviewer/api/projects/models/bioEntities/elements/ElementsRestImpl.java

@@ -47,6 +47,13 @@ public class ElementsRestImpl extends BaseRestImpl {
 				ids.add(Integer.valueOf(str));
 			}
 		}
+		Set<String> types = new HashSet<>();
+		if (!type.isEmpty()) {
+			for (String str : type.split(",")) {
+				types.add(str.toLowerCase());
+			}
+		}
+
 		Set<String> columnsSet = createElementColumnSet(columns);
 
 		List<Map<String, Object>> result = new ArrayList<>();
@@ -56,7 +63,7 @@ public class ElementsRestImpl extends BaseRestImpl {
 		for (Model model2 : models) {
 			for (Element element : model2.getElements()) {
 				if (ids.size() == 0 || ids.contains(element.getId())) {
-					if (type.isEmpty() || element.getStringType().equalsIgnoreCase(type)) {
+					if (types.size() == 0 || types.contains(element.getStringType().toLowerCase())) {
 						result.add(preparedElement(element, columnsSet));
 					}
 				}