1 files changed, 19 insertions, 0 deletions
diff --git a/common-app-api/src/main/java/org/openecomp/sdc/common/util/PairUtils.java b/common-app-api/src/main/java/org/openecomp/sdc/common/util/PairUtils.java
new file mode 100644
index 0000000000..3dd313b824
--- /dev/null
+++ b/common-app-api/src/main/java/org/openecomp/sdc/common/util/PairUtils.java
@@ -0,0 +1,19 @@
+package org.openecomp.sdc.common.util;
+
+import org.apache.commons.lang3.tuple.ImmutablePair;
+import org.apache.commons.lang3.tuple.Pair;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class PairUtils {
+
+    public static <L, R> List<L> leftSequence(List<ImmutablePair<L, R>> pairs) {
+        return pairs.stream().map(Pair::getLeft).collect(Collectors.toList());
+    }
+
+    public static <L, R> List<R> rightSequence(List<Pair<L, R>> pairs) {
+        return pairs.stream().map(Pair::getRight).collect(Collectors.toList());
+    }
+
+}