wolfstudy commented on a change in pull request #4093: [issue#4042] improve
java functions API
URL: https://github.com/apache/pulsar/pull/4093#discussion_r277127761
##########
File path:
pulsar-functions/instance/src/main/java/org/apache/pulsar/functions/instance/ContextImpl.java
##########
@@ -346,60 +346,32 @@ public ByteBuffer getState(String key) {
return publish(topicName, object, (Schema<O>)
topicSchema.getSchema(topicName, object, schemaOrSerdeClassName, false),
messageConf);
}
+ @Override
+ public <O> TypedMessageBuilder<O> newOutputMessage(String topicName,
Schema<O> schema) throws PulsarClientException {
+ Producer<O> producer = getProducer(topicName, schema);
+ return producer.newMessage();
+ }
+
@SuppressWarnings("unchecked")
public <O> CompletableFuture<Void> publish(String topicName, O object,
Schema<O> schema, Map<String, Object> messageConf) {
- Producer<O> producer = (Producer<O>) publishProducers.get(topicName);
-
- if (producer == null) {
- try {
- Producer<O> newProducer = ((ProducerBuilderImpl<O>)
producerBuilder.clone())
- .schema(schema)
- .blockIfQueueFull(true)
- .enableBatching(true)
- .batchingMaxPublishDelay(10, TimeUnit.MILLISECONDS)
- .compressionType(CompressionType.LZ4)
- .hashingScheme(HashingScheme.Murmur3_32Hash) //
- .messageRoutingMode(MessageRoutingMode.CustomPartition)
- .messageRouter(FunctionResultRouter.of())
- // set send timeout to be infinity to prevent
potential deadlock with consumer
- // that might happen when consumer is blocked due to
unacked messages
- .sendTimeout(0, TimeUnit.SECONDS)
- .topic(topicName)
- .properties(InstanceUtils.getProperties(componentType,
- FunctionCommon.getFullyQualifiedName(
-
this.config.getFunctionDetails().getTenant(),
-
this.config.getFunctionDetails().getNamespace(),
-
this.config.getFunctionDetails().getName()),
- this.config.getInstanceId()))
- .create();
-
- Producer<O> existingProducer = (Producer<O>)
publishProducers.putIfAbsent(topicName, newProducer);
-
- if (existingProducer != null) {
- // The value in the map was not updated after the
concurrent put
- newProducer.close();
- producer = existingProducer;
- } else {
- producer = newProducer;
- }
-
- } catch (PulsarClientException e) {
- logger.error("Failed to create Producer while doing user
publish", e);
- return FutureUtil.failedFuture(e);
+ Producer<O> producer;
+ try {
+ producer = getProducer(topicName, schema);
Review comment:
yes, good idea, will fix it
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