From 2a7214089e10fb7e895825be2d531a8fd9e62424 Mon Sep 17 00:00:00 2001
From: xvrl <xavier@metamarkets.com>
Date: Tue, 18 Dec 2012 14:09:54 -0800
Subject: [PATCH] fix NPE in segmentMetadata query for null dimension values

---
 .../metamx/druid/query/metadata/SegmentMetadataQueryEngine.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/src/main/java/com/metamx/druid/query/metadata/SegmentMetadataQueryEngine.java b/server/src/main/java/com/metamx/druid/query/metadata/SegmentMetadataQueryEngine.java
index edc4ea3eda8..7522b4b4750 100644
--- a/server/src/main/java/com/metamx/druid/query/metadata/SegmentMetadataQueryEngine.java
+++ b/server/src/main/java/com/metamx/druid/query/metadata/SegmentMetadataQueryEngine.java
@@ -72,7 +72,7 @@ public class SegmentMetadataQueryEngine
         final Indexed<String> lookup = adapter.getDimValueLookup(input);
         for (String dimVal : lookup) {
           ImmutableConciseSet index = adapter.getInvertedIndex(input, dimVal);
-          size += index.size() * Charsets.UTF_8.encode(dimVal).capacity();
+          size += (dimVal == null) ? 0 : index.size() * Charsets.UTF_8.encode(dimVal).capacity();
         }
         return new SegmentMetadataResultValue.Dimension(
             size,