From 608c4f3fc01e0be2a5572fa15d3e40409aab84d0 Mon Sep 17 00:00:00 2001
From: George Kalampokis <gkalampokis@cite.gr>
Date: Wed, 2 Mar 2022 10:56:28 +0200
Subject: [PATCH] Add get Parent values on json Searcher

---
 .../logic/utilities/json/JsonSearcher.java    | 30 ++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/dmp-backend/web/src/main/java/eu/eudat/logic/utilities/json/JsonSearcher.java b/dmp-backend/web/src/main/java/eu/eudat/logic/utilities/json/JsonSearcher.java
index e7579d07a..6e53aed30 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/logic/utilities/json/JsonSearcher.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/logic/utilities/json/JsonSearcher.java
@@ -1,10 +1,10 @@
 package eu.eudat.logic.utilities.json;
 
 import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.node.ObjectNode;
 
 import java.util.ArrayList;
 import java.util.Iterator;
+import java.util.LinkedList;
 import java.util.List;
 
 public class JsonSearcher {
@@ -38,4 +38,32 @@ public class JsonSearcher {
 		}
 		return nodes;
 	}
+
+	public static List<String> getParentValues(JsonNode root, String childValue, String key) {
+		List<String> values = new LinkedList<>();
+
+		for (Iterator<JsonNode> it = root.elements(); it.hasNext(); ) {
+			JsonNode node = it.next();
+			int found = 0;
+			for (Iterator<String> iter = node.fieldNames(); iter.hasNext(); ) {
+				String fieldName = iter.next();
+				if (fieldName.equals(key)) {
+					if (node.get(fieldName).asText().equals(childValue) || node.get(fieldName).asText().startsWith(childValue)) {
+						values.add(childValue);
+						found++;
+					}
+				}
+
+			}
+			if (found == 0) {
+				values.addAll(getParentValues(node, childValue, key));
+				if (!values.isEmpty() && node.has(key)) {
+					values.add(node.get(key).asText());
+					values.remove(childValue);
+				}
+			}
+		}
+
+		return values;
+	}
 }