Purpose

An app to read XML from a kafka topic, convert to Json, produce to another kafka topic. Intended to be suitable for building a native image using GraalVM.

Environment

You need:

• a Kafka broker running in a place that this application can access it
• something to write some XML onto the "input" topic.

You can find a suitable environment here, although its far more that needed.

Building this app

Build a fat Jar (target/xmlJsonConverter-1.0-SNAPSHOT-jar-with-dependencies.jar):

./build.sh -f 

Normal JVM docker image

./build.sh -j 

Run the docker container against a local kafka cluster running in Docker:

docker run -i --rm --network=sns2-system-tests_default -e APP_NAME=linuxXmlToJsonConverter -e KAFKA_BROKER_SERVER=sns2-system-tests_kafka01.internal-service_1 -e KAFKA_BROKER_PORT=9092 -e INPUT_KAFKA_TOPIC=incoming.op.msgs -e OUTPUT_KAFKA_TOPIC=modify.op.msgs  sns/xml-json-converter-jvm java -jar /xmlJsonConverter-1.0-SNAPSHOT-jar-with-dependencies.jar

Native Images

Build an OSX native image (target/macXmlToJsonConverter):

./build.sh -t darwin

Build a linux native image (target/linuxXmlToJsonConverter):

./build.sh -t docker

Build a docker image using the linux native image

./build.sh -i

Do the whole thing:

./build.sh -f -t docker -i

Run the docker container against a local kafka cluster running in Docker:

docker run -i --rm --network=sns2-system-tests_default -e APP_NAME=linuxXmlToJsonConverter -e KAFKA_BROKER_SERVER=sns2-system-tests_kafka01.internal-service_1 -e KAFKA_BROKER_PORT=9092 -e INPUT_KAFKA_TOPIC=incoming.op.msgs -e OUTPUT_KAFKA_TOPIC=modify.op.msgs  sns/xml-json-converter /linuxXmlToJsonConverter