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GH-3797: Improve batch processing in the framework (#3820)

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* GH-3797: Improve batch processing in the framework

Fixes https://github.com/spring-projects/spring-integration/issues/3797

* Handle `Message` items of the `Iterable` payload properly in the `JdbcMessageHandler`.
Otherwise, they've been wrapped into an extra `Message`
* Produce a single message with a `Collection<Message<?>>` payload in the `AggregatingMessageHandler`
when the `getOutputProcessor()` is not an instance of `SimpleMessageGroupProcessor`
* Mention these changes in docs
* Point to the error handling sample from docs

* * Fix language in docs

Co-authored-by: Gary Russell <grussell@vmware.com>

Co-authored-by: Gary Russell <grussell@vmware.com>
This commit is contained in:
Artem Bilan
2022-06-07 10:14:53 -04:00
committed by GitHub
parent 4f49038e17
commit e855f13d8e
8 changed files with 100 additions and 35 deletions
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25
spring-integration-core/src/test/java/org/springframework/integration/config/annotation/MessagingAnnotationsWithBeanAnnotationTests.java
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@@ -44,7 +44,6 @@ import org.springframework.integration.MessageRejectedException;
import org.springframework.integration.aggregator.AggregatingMessageHandler;
import org.springframework.integration.aggregator.ExpressionEvaluatingCorrelationStrategy;
import org.springframework.integration.aggregator.ExpressionEvaluatingReleaseStrategy;
import org.springframework.integration.aggregator.SimpleMessageGroupProcessor;
import org.springframework.integration.annotation.BridgeFrom;
import org.springframework.integration.annotation.BridgeTo;
import org.springframework.integration.annotation.Filter;
@@ -69,6 +68,7 @@ import org.springframework.integration.endpoint.SourcePollingChannelAdapter;
import org.springframework.integration.filter.ExpressionEvaluatingSelector;
import org.springframework.integration.history.MessageHistory;
import org.springframework.integration.splitter.DefaultMessageSplitter;
import org.springframework.integration.store.MessageGroup;
import org.springframework.integration.transformer.ExpressionEvaluatingTransformer;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
@@ -178,12 +178,11 @@ public class MessagingAnnotationsWithBeanAnnotationTests {
MessageHistory messageHistory = MessageHistory.read(message);
assertThat(messageHistory).isNotNull();
String messageHistoryString = messageHistory.toString();
assertThat(messageHistoryString).contains("routerChannel")
.contains("filterChannel")
.contains("aggregatorChannel")
.contains("splitterChannel")
.contains("serviceChannel")
.doesNotContain("discardChannel");
assertThat(messageHistoryString)
.contains("routerChannel", "filterChannel", "aggregatorChannel", "serviceChannel")
.doesNotContain("discardChannel")
// history header is not overridden in splitter for individual message from message group emitted before
.doesNotContain("splitterChannel");
}
assertThat(this.skippedServiceActivator).isNull();
@@ -248,10 +247,10 @@ public class MessagingAnnotationsWithBeanAnnotationTests {
this.reactiveMessageHandlerChannel.send(new GenericMessage<>("test"));
StepVerifier.create(
this.contextConfiguration.messageMono
.asMono()
.map(Message::getPayload)
.cast(String.class))
this.contextConfiguration.messageMono
.asMono()
.map(Message::getPayload)
.cast(String.class))
.expectNext("test")
.verifyComplete();
}
@@ -332,7 +331,7 @@ public class MessagingAnnotationsWithBeanAnnotationTests {
@Bean
@ServiceActivator(inputChannel = "aggregatorChannel")
public MessageHandler aggregator() {
AggregatingMessageHandler handler = new AggregatingMessageHandler(new SimpleMessageGroupProcessor());
AggregatingMessageHandler handler = new AggregatingMessageHandler(MessageGroup::getMessages);
handler.setCorrelationStrategy(new ExpressionEvaluatingCorrelationStrategy("1"));
handler.setReleaseStrategy(new ExpressionEvaluatingReleaseStrategy("size() == 10"));
handler.setOutputChannelName("splitterChannel");
@@ -346,7 +345,7 @@ public class MessagingAnnotationsWithBeanAnnotationTests {
@Bean
public CountDownLatch reactiveCustomizerLatch() {
return new CountDownLatch(10);
return new CountDownLatch(1);
}
@Bean