merlimat commented on a change in pull request #1382: Correlate Output of
function with input
URL: https://github.com/apache/incubator-pulsar/pull/1382#discussion_r174567157
##########
File path:
pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/JavaInstanceRunnable.java
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@@ -497,7 +493,9 @@ private void sendOutputMessage(InputMessage srcMsg,
JavaExecutionResult result,
byte[] output) {
MessageBuilder msgBuilder = MessageBuilder.create()
- .setContent(output);
+ .setContent(output)
+ .setProperty("__pfn_input_topic__", srcMsg.getTopicName())
+ .setProperty("__pfn_msg_id__", new
String(Base64.getEncoder().encode(srcMsg.getActualMessage().getMessageId().toByteArray())));
Review comment:
Should this be more explicit it refers to the source message?
Like `__pfn_src_msg_id__` or `__pfn_input_msg_id__
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