1 files changed, 31 insertions, 0 deletions
diff --git a/vid-app-common/src/main/java/org/onap/vid/utils/Intersection.java b/vid-app-common/src/main/java/org/onap/vid/utils/Intersection.java
new file mode 100644
index 000000000..6e0d1fc25
--- /dev/null
+++ b/vid-app-common/src/main/java/org/onap/vid/utils/Intersection.java
@@ -0,0 +1,31 @@
+package org.onap.vid.utils;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Created by moriya1 on 10/10/2017.
+ */
+public class Intersection<T> {
+    public List<T> intersectMultipileArray(List<List<T>> lists) {
+        if (lists.size() == 1) {
+            return lists.get(0);
+        } else {
+            List<T> intersectResult = intersectTwoArrays(lists.get(0),lists.get(1));
+
+            lists.remove(0);
+            lists.remove(0);
+            lists.add(0,intersectResult);
+            return intersectMultipileArray(lists);
+        }
+
+    }
+
+    public List<T> intersectTwoArrays(List<T> list1, List<T> list2) {
+
+        List<T> intersect = list1.stream()
+                .filter(list2::contains)
+                .collect(Collectors.toList());
+        return intersect;
+    }
+}