Simple sample Kafka consumer that reads image data from Kafka and show them on the screen. This application together with kafka-picture-producer build a demo to explain the differences between Queuing and Publish/Subscribe modes of Kafka Messaging System in a more entertaining way 😏
You'll need a running Kafka and Zookeeper. You may find some information on creating the test setup in the kafka-picture-producer README. Furthermore you gonna need a movie split into single frames (google for vlc scene video filter)...
In the easiest way you simply run
java -Djava.awt.headless=false -jar kafka-picture-consumer-0.1.0.jar --kafka.group.id=1
(make sure you went to build/libs folder before the execution)
but there are also some command line arguments
java -Djava.awt.headless=false -jar kafka-picture-consumer-0.1.0.jar [--zookeeper.connect] [--kafka.topic] [--kafka.group.id]
| argument name | argument value | default |
|---|---|---|
| --zookeeper.connect | zookeeper host | localhost:2181 |
| --kafka.topic | topic the images are published to | images |
| --kafka.group.id | consumer group id |
These command lines could also be set in the application.properties
This project uses Spring Boot as application framework and Gradle to build. The application was written against Kafka 0.8.2.1.
This project uses Gradle for building the application. Simply run
./gradlew assemble
to build the executable jar file. You then will find it under build/libs.