From 62fe5a77a0858e8de1d846f1bbaf90f3f8b13319 Mon Sep 17 00:00:00 2001
From: lucio <lucio@Lucio-desktop>
Date: Tue, 17 Mar 2020 13:58:37 +0100
Subject: [PATCH] removes duplicate nodes in search

---
 src/main/java/org/gcube/data/access/storagehub/Utils.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/gcube/data/access/storagehub/Utils.java b/src/main/java/org/gcube/data/access/storagehub/Utils.java
index 0d4014c..b733999 100644
--- a/src/main/java/org/gcube/data/access/storagehub/Utils.java
+++ b/src/main/java/org/gcube/data/access/storagehub/Utils.java
@@ -9,6 +9,7 @@ import java.security.MessageDigest;
 import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Deque;
+import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Set;
@@ -139,11 +140,15 @@ public class Utils {
 		int count =0;
 		logger.trace("selected range is {}", range);
 		Node2ItemConverter node2Item= new Node2ItemConverter();
+		Set<String> duplicateId = new HashSet<String>();
 		while (iterator.hasNext()){
 			Node current = iterator.nextNode();
 			
 			logger.debug("[SEARCH] evaluating node {} ",current.hasProperty(NodeProperty.TITLE.toString())? current.getProperty(NodeProperty.TITLE.toString()):current.getName());
 			
+			//REMOVE duplicate nodes, in case the indexes are not working
+			if (duplicateId.contains(current.getIdentifier())) continue;
+			
 			//ECLUDES node not authorized, in case the indexes are not working
 			if (authChecker!=null)
 				try {
@@ -163,7 +168,7 @@ public class Utils {
 				returnList.add(item);
 			} 
 			count++;
-
+			duplicateId.add(current.getIdentifier());
 		}
 		return returnList;
 	}