Merge pull request #11762 from TIK-NFL/fix_ror-v2_api_cvoc

Fixing ror v2 api access for cvoc

Author: landreev

src/main/java/edu/harvard/iq/dataverse/DatasetFieldServiceBean.java

@@ -43,6 +43,7 @@
 import jakarta.persistence.criteria.*;
 import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
 import org.apache.http.HttpResponse;
 import org.apache.http.HttpResponseInterceptor;
 import org.apache.http.client.methods.HttpGet;
@@ -804,8 +805,18 @@ Object processPathSegment(int index, String[] pathParts, JsonValue curPath, Stri
                 }
 
             } else {
-                curPath = ((JsonObject) curPath).get(pathParts[index]);
-                logger.fine("Found next Path object " + curPath);
+                if ((curPath instanceof JsonArray) && NumberUtils.isCreatable(pathParts[index])) {
+                    try {
+                        int indexNumber = Integer.parseInt(pathParts[index]);
+                        curPath = ((JsonArray) curPath).get(indexNumber);
+                    } catch (NumberFormatException nfe) {
+                        logger.fine("Please provide a valid integer number " + pathParts[index]);
+                    }
+                } else {
+                    curPath = ((JsonObject) curPath).get(pathParts[index]);
+                }
+                // curPath = ((JsonObject) curPath).get(pathParts[index]);
+                logger.fine("Found next Path object " + ((curPath == null) ? "null" : curPath.toString()));
                 return processPathSegment(index + 1, pathParts, curPath, termUri);
             }
         } else {