b29fc5491a
Also some general README and pom cleanup. README Polishing Resolves #37 Polishing - Use Boot Config for Test Consumer Possible now that https://github.com/spring-cloud/spring-cloud-stream-binder-kafka/pull/137 is merged.
Spring Cloud Stream Source Sample
In this Spring Cloud Stream sample, a source application publishes messages to dynamically created destinations.
Requirements
To run this sample, you will need to have installed:
- Java 8 or Above
This example requires RabbitMQ to be running on localhost.
Code Tour
The class SourceWithDynamicDestination is a REST controller that registers the 'POST' request mapping for '/'.
When a payload is sent to 'http://localhost:8080/' by a POST request (port 8080 is the default), this application
then uses BinderAwareChannelResolver to resolve the destination dynamically at runtime. Currently, this resolver uses
payload as the SpEL expression to resolve the destination name. Hence, if a payload testing is sent to the app, then
this source application sends the message testing into the Rabbit exchange testing. This exchange or topic (in case
of Kafka if Kafka binder is used) is created dynamically and bound to send the payload.
Upon starting the application on the default port 8080, if the following data are sent:
curl -H "Content-Type: application/json" -X POST -d '{"id":"customerId-1","bill-pay":"100"}' http://localhost:8080
curl -H "Content-Type: application/json" -X POST -d '{"id":"customerId-2","bill-pay":"150"}' http://localhost:8080
The destinations 'customerId-1' and 'customerId-2' are created at the broker (for example: exchange in case of Rabbit or topic in case of Kafka with the names 'customerId-1' and 'customerId-2') and the data are published to the appropriate destinations dynamically.
Building with Maven
Build the sample by executing:
source>$ mvn clean package
Running the Sample
To start the source module execute the following:
source>$ java -jar target/spring-cloud-stream-sample-dynamic-source-1.1.0.BUILD-SNAPSHOT-exec.jar