From fef62925c47ed14c6c610e73ba684dc19bcc3dd0 Mon Sep 17 00:00:00 2001
From: Ben Steffensmeier <Benjamin.P.Steffensmeier@raytheon.com>
Date: Thu, 29 Nov 2012 14:37:28 -0600
Subject: [PATCH] Issue #1370 fix exception that occurs when cubes of derived
 parameters are only partially available. Change-Id:
 Icd7a7acc2447d7a0d9cebe3107ea05281c2c4bbe

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---
 .../raytheon/uf/viz/derivparam/inv/MetadataContainer.java | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/cave/com.raytheon.uf.viz.derivparam/src/com/raytheon/uf/viz/derivparam/inv/MetadataContainer.java b/cave/com.raytheon.uf.viz.derivparam/src/com/raytheon/uf/viz/derivparam/inv/MetadataContainer.java
index a34b72e3dd..b2833f77a0 100644
--- a/cave/com.raytheon.uf.viz.derivparam/src/com/raytheon/uf/viz/derivparam/inv/MetadataContainer.java
+++ b/cave/com.raytheon.uf.viz.derivparam/src/com/raytheon/uf/viz/derivparam/inv/MetadataContainer.java
@@ -121,12 +121,12 @@ public class MetadataContainer {
     private Set<AbstractRequestableData> getData(AbstractRequestableNode node,
             Set<TimeAndSpace> availability, boolean doRequests)
             throws VizException {
-        if (availability == null || availability.isEmpty()) {
-            return Collections.emptySet();
-        }
-
         if (dataCache.containsKey(node)) {
             return dataCache.get(node);
+        } else if (availability == null || availability.isEmpty()) {
+            Set<AbstractRequestableData> data = Collections.emptySet();
+            dataCache.put(node, data);
+            return data;
         }
         if (doRequests) {
             generateAvailability(node, availability);