check aggregator before access

telefonicaid · Sep 13, 2023 · 5c60a89 · 5c60a89
1 parent d7066ca
commit 5c60a89
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/...ngsi/src/main/java/com/telefonica/iot/cygnus/aggregation/NGSIGenericColumnAggregator.java b/...ngsi/src/main/java/com/telefonica/iot/cygnus/aggregation/NGSIGenericColumnAggregator.java
@@ -98,7 +98,10 @@ public void initialize(NGSIEvent event) {
     @Override
     public void aggregate(NGSIEvent event) {
         // Number of previous values
-        int numPreviousValues = getAggregation().get(NGSIConstants.FIWARE_SERVICE_PATH).size();
+        int numPreviousValues = 0;
+        if (getAggregation().get(NGSIConstants.FIWARE_SERVICE_PATH) != null) {
+            numPreviousValues = getAggregation().get(NGSIConstants.FIWARE_SERVICE_PATH).size();
+        }
         // get the servicePath from event
         String eventServicePath = event.getServicePathForData();
         // Get the event headers