db3d78109f
JIRA: https://jira.spring.io/browse/INTSAMPLES-144 INTSAMPLES-144: Use o-c-a for Release INTSAMPLES-144: Switch to Spring Boot INTSAMPLES-144: Polishing * Upgrade to SI-4.2, SF-4.2, Boot-1.3 * Fix: https://jira.spring.io/browse/INTSAMPLES-145
45 lines
1.5 KiB
Markdown
45 lines
1.5 KiB
Markdown
Barrier Sample
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==============
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This example demonstrates the use of a process barrier component to suspend a thread until some asynchronous operation
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completes. It uses an **HTTP Inbound Gateway**, splits the request, sends the splits to rabbitmq and then waits for
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the publisher confirms. Finally, the results are returned to the caller.
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The sample is a Spring Boot application that loads 2 contexts:
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* Client - Sends **A,B,C** to the server
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* Server - Web application
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The server context has 3 integration flows:
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```
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http -> splitter -> amqp
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|-> barrier
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amqp(Acks) -> aggregator -> barrier (release)
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qmqp(inbound) -> nullChannel
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```
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The last flow drains the messages and allows the auto-delete queue to be removed when the application is closed.
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## Running the sample
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$ gradlew :barrier:run
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This will package the application and run it using the [Gradle Application Plugin](http://www.gradle.org/docs/current/userguide/application_plugin.html)
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#### Using an IDE such as SpringSource Tool Suite™ (STS)
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In STS (Eclipse), go to package **org.springframework.integration.samples.barrier**, right-click **Application** and select **Run as** --> **Java Application** (or Spring Boot Application).
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### Output
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The gateway (**client**) initiates a simple request posting "A,B,C" to the **server** and the **server** responds with the results.
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You should see the following output from the server:
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++++++++++++ Replied with: Result: A: ack=true, B: ack=true, C: ack=true ++++++++++++
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