commit 65de9619e77095b53549013cf901385ad6df54d1
author Sho SHIMIZU <shimizu.sho@jp.fujitsu.com> Thu May 19 12:24:20 2016 -0700
committer Sho Shimizu <sho.shimizu@gmail.com> Tue May 31 19:59:05 2016 +0000
tree 84c55e87e28cd15b2d4c0985f082e9e14105a6cc
parent e4f76edbae2401a0c8d3577a47abc92aa5fe0954

Compaction of discrete resources with range based representation

This resolves ONOS-4281

Change-Id: I0739ba94cc0b3ce617e2db44307fef396dcfb942
(cherry picked from commit 34e2c1c223ec62c85c2613c0d899a0cc06b63f33)

core/store/dist/src/main/java/org/onosproject/store/resource/impl/EncodableDiscreteResources.java

diff --git a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/EncodableDiscreteResources.java b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/EncodableDiscreteResources.java
index 891f35f..a20ca52 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/EncodableDiscreteResources.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/EncodableDiscreteResources.java
@@ -43,6 +43,10 @@
     }
 
     static DiscreteResources of(Set<DiscreteResource> resources) {
+        if (resources.isEmpty()) {
+            return DiscreteResources.empty();
+        }
+
         DiscreteResource parent = resources.iterator().next().parent().get();
         return of(parent, resources);
     }