1 files changed, 54 insertions, 0 deletions
diff --git a/vid-app-common/src/main/java/org/onap/vid/utils/Multival.java b/vid-app-common/src/main/java/org/onap/vid/utils/Multival.java
new file mode 100644
index 000000000..3a9b518d1
--- /dev/null
+++ b/vid-app-common/src/main/java/org/onap/vid/utils/Multival.java
@@ -0,0 +1,54 @@
+package org.onap.vid.utils;
+
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
+
+import java.util.Collection;
+import java.util.function.Function;
+
+import static java.util.stream.Collectors.toSet;
+
+@JsonPropertyOrder({"keyType", "valuesType"})
+public class Multival<K, V> {
+    private final String keyType;
+    private final String valuesType;
+    private final K key;
+    private final Collection<V> values;
+
+    private Multival(String keyType, K key, String valuesType, Collection<V> values) {
+        this.keyType = keyType;
+        this.key = key;
+        this.valuesType = valuesType;
+        this.values = values;
+    }
+
+    public static <K, V> Multival<K, V> of(String keyType, K key, String valuesType, Collection<V> values) {
+        return new Multival<>(keyType, key, valuesType, values);
+    }
+
+    public String getKeyType() {
+        return keyType;
+    }
+
+    public String getValuesType() {
+        return valuesType;
+    }
+
+    public K getKey() {
+        return key;
+    }
+
+    public Collection<V> getValues() {
+        return values;
+    }
+
+    public <W> Multival<K, W> mapEachVal(Function<V, W> mapper) {
+        return Multival.of(
+                this.getKeyType(),
+                this.getKey(),
+                this.getValuesType(),
+                this.getValues().stream()
+                        .map(mapper)
+                        .collect(toSet())
+        );
+    }
+}