Added empty TenantCost

1 files changed, 15 insertions, 0 deletions

diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/resource/TenantCost.java b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/resource/TenantCost.java
index f9b7aaabcdc..b4ca0cd7076 100644
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/resource/TenantCost.java
+++ b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/resource/TenantCost.java
@@ -5,6 +5,7 @@ import com.yahoo.config.provision.TenantName;
 
 import java.time.LocalDate;
 import java.time.YearMonth;
+import java.util.Collections;
 import java.util.List;
 import java.util.Set;
 
@@ -16,4 +17,18 @@ public interface TenantCost {
     Set<YearMonth> monthsWithMetering(TenantName tenantName);
 
     List<CostInfo> getTenantCostOfMonth(TenantName tenantName, YearMonth month);
+
+    static TenantCost empty() {
+        return new TenantCost() {
+            @Override
+            public Set<YearMonth> monthsWithMetering(TenantName tenantName) {
+                return Collections.emptySet();
+            }
+
+            @Override
+            public List<CostInfo> getTenantCostOfMonth(TenantName tenantName, YearMonth month) {
+                return Collections.emptyList();
+            }
+        };
+    }
 }