Chaitanya created APEXMALHAR-2459:
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Summary: KafkaInputoperator using 0.10.* Kafka consumer API
Key: APEXMALHAR-2459
URL: https://issues.apache.org/jira/browse/APEXMALHAR-2459
Project: Apache Apex Malhar
Issue Type: Task
Reporter: Chaitanya
Assignee: Chaitanya
Changes in 0.10.0.0 version of Kafka
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Message format in 0.10.0 has changed. Messages now include a time-stamp
field and compressed messages include relative offsets.
Please refer the below link about the changes in Kafka 0.10.0.0 version:
https://kafka.apache.org/documentation/#upgrade_10_breaking.
Design
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I'm proposing the below design for new Kafka connectors by refactoring the
existing Kafka connector(0.9.* version)
1) Split up the malhar-kafka to malhar-kafka-common, malhar-kafka_0.9,
malhar-kafka_0.10. Directory structure would be as follows:
malhar-kafka
|--malhar-kafka-common
|--malhar-kafka_0.9
|--malhar-kafka_0.10
If possible, will add the connectors for 0.8.x version.
2) Convert the KafkaConsumerWrapper to AbstractKafkaConsumerWrapper by adding
the abstract methods over the consumer API's.
3) "malhar-kafka-common" package consists of the abstract classes and by
default it builds over the 0.9.x version of Kafka.
4) "malhar-kafka-0.*" consists of concrete classes and its corresponding
KafkaConsumerWrapper.
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