[GitHub] srkukarni closed pull request #3130: Ensure that the input topic exists before doing trigger

[GitBox <gi...@apache.org>]

srkukarni closed pull request #3130: Ensure that the input topic exists before doing trigger
URL: https://github.com/apache/pulsar/pull/3130
 
 
   

This is a PR merged from a forked repository.
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diff --git a/pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/rest/api/ComponentImpl.java b/pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/rest/api/ComponentImpl.java
index 8f13dc8067..3bd5a01e66 100644
--- a/pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/rest/api/ComponentImpl.java
+++ b/pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/rest/api/ComponentImpl.java
@@ -1041,6 +1041,12 @@ public Response triggerFunction(final String tenant, final String namespace, fin
 
             return Response.status(Status.BAD_REQUEST).build();
         }
+        try {
+            worker().getBrokerAdmin().topics().getSubscriptions(inputTopicToWrite);
+        } catch (PulsarAdminException e) {
+            log.error("Function in trigger function is not ready @ /{}/{}/{}", tenant, namespace, functionName);
+            return Response.status(Status.BAD_REQUEST).build();
+        }
         String outputTopic = functionMetaData.getFunctionDetails().getSink().getTopic();
         Reader<byte[]> reader = null;
         Producer<byte[]> producer = null;


 

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