Mastering Spring 5.0

The source application

The source application will be the producer of stock price change events. It will define an output channel and put a message on the message broker.

Let's use Spring Initializr (https://start.spring.io) to set up the application. Provide the details listed here and click on Generate Project:

• Group: com.mastering.spring.cloud.data.flow
• Artifact: significant-stock-change-source
• Dependencies: Stream Rabbit

Listed here are some of the important dependencies from the pom.xml file:

    <dependency>      <groupId>org.springframework.cloud</groupId>      <artifactId>spring-cloud-starter-stream-rabbit</artifactId>    </dependency>

Update the SpringBootApplication file with the following code:

    @EnableBinding(Source.class) @SpringBootApplication ...