[GitHub] [pulsar] wolfstudy commented on a change in pull request #4093: [issue#4042] improve java functions API

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wolfstudy commented on a change in pull request #4093: [issue#4042] improve java functions API
URL: https://github.com/apache/pulsar/pull/4093#discussion_r280530558
 
 

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 File path: pulsar-functions/java-examples/src/main/java/org/apache/pulsar/functions/api/examples/PublishFunctionWithMessageConf.java
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 @@ -40,13 +41,14 @@ public Void process(String input, Context context) {
         properties.put("input_topic", context.getCurrentRecord().getTopicName().get());
         properties.putAll(context.getCurrentRecord().getProperties());
 
-        Map<String, Object> messageConf = new HashMap<>();
-        messageConf.put(TypedMessageBuilder.CONF_PROPERTIES, properties);
-        if (context.getCurrentRecord().getKey().isPresent()) {
-            messageConf.put(TypedMessageBuilder.CONF_KEY, context.getCurrentRecord().getKey().get());
+        try {
+            TypedMessageBuilder<String> msgBuilder = context.newOutputMessage(publishTopic, null);
+            msgBuilder.value(output).properties(properties).
+                    key(context.getCurrentRecord().getKey().get()).
+                    eventTime(System.currentTimeMillis()).sendAsync();
+        } catch (PulsarClientException e) {
+            e.printStackTrace();
 
 Review comment:
   thanks @jerrypeng remind

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