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Kafka-0.10.0 Compatibility

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README.md

Spring Integration - AMQP Sample

Overview

This sample demonstrates basic functionality of the Spring Integration AMQP Adapter, which uses the Advanced Message Queuing Protocol (AMQP) to send and retrieve messages. As AMQP Broker implementation the sample uses RabbitMQ.

Once the application is started, you enter some text on the command prompt and a message containing that entered text is dispatched to the AMQP queue. In return that message is retrieved by Spring Integration and then printed to the console.

In order to run the example you will need a running instance of RabbitMQ. A local installation with just the basic defaults will be sufficient. Please visit: http://www.rabbitmq.com/install.html for detailed installation procedures.

How to Run the Sample

If you imported the example into your IDE, you can just run class org.springframework.integration.samples.amqp.SampleSimple. For example in SpringSource Tool Suite (STS) do:

  • Right-click on SampleSimple class --> Run As --> Java Application

Alternatively, you can start the sample from the command line:

  • ./gradlew :amqp:runSimple

Enter some data (e.g. 'foo') on the console; you will see a [tapInbound] log and 'Received: foo'.

Ctrl-C to terminate.

The SamplePubConfirmsReturns class is similar, but demonstrates publisher confirms and returns.

  • Right-click on SamplePubConfirmsReturns class --> Run As --> Java Application

Or:

  • ./gradlew :amqp:runPubConfirmsReturns

When you enter a message in the console you will see the message received, together with a send confirmation:

foo
Received: foo
foo sent ok

When you enter 'fail', the message is sent with a bad routing key; you will see the message is sent ok, but returned because it is not routable:

fail
fail returned:NO_ROUTE
fail sent ok

When you enter 'nack', the message is sent to a non-existent exchange; the broker reacts to this by closing the channel with an error and Spring AMQP generates a Nack:

nack
nack send failed (nack)
11:54:00.818 ERROR [pool-1-thread-1][org.springframework.amqp.rabbit.connection.CachingConnectionFactory] Channel shutdown: channel error; protocol method: #method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no exchange 'badExchange' in vhost '/', class-id=60, method-id=40)

Ctrl-C to terminate.

Used Spring Integration components

Spring Integration Modules (Maven/Gradle dependencies)

  • spring-integration-core
  • spring-integration-amqp
  • spring-integration-stream

Spring Integration Adapters

  • int-stream:stdin-channel-adapter
  • int-amqp:outbound-channel-adapter
  • int-amqp:inbound-channel-adapter
  • int-stream:stdout-channel-adapter
  • int:poller
  • int:channel
  • int:interceptors
  • int:wire-tap
  • logging-channel-adapter

Resources

For further help please take a look at the Spring Integration documentation:

Some further resources: