Integrated kafka

[MilanTyagi2004]

Related Issue

• Fixes Kafka Integration for Streaming Transaction Logs #216

Summary

• Adds optional, auto-configured Kafka support to Spring Tx Board.
• Automatically publishes every completed TransactionLog to a Kafka topic when spring-kafka is on the classpath.
  Existing REST, UI, and in-memory logging remain unaffected.

Changes Made

• Added TxBoardKafkaProperties for configurable topic and enable/disable flag.

• Added TxBoardKafkaAutoConfiguration to auto-create Kafka publisher if Kafka is present.

• Added KafkaTransactionLogPublisher to send TransactionLog events to Kafka in a fail-safe, non-blocking way.

• Registered auto-configuration in META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports (and
  spring.factories for Boot 2 support).

• Updated library folder structure: com.sdlc.pro.txboard.kafka.

Testing

• mvn clean install passes
• mvn test passes
• Manual testing performed

Notes for Reviewers

• Kafka publishing is optional and auto-enabled only if Kafka is on the classpath.

• Failures in publishing are caught; the application remains unaffected.

• Compatible with Spring Boot 2.x, 3.x, and 4.x.

Checklist

• I have merged the latest changes from upstream dev.
• I have added necessary documentation (if appropriate).
• I have added tests (if applicable) that prove my fix is effective or that my feature works.
• All tests pass locally.

[MilanTyagi2004]

@Mamun-Al-Babu-Shikder could you please review the PR

[Mamun-Al-Babu-Shikder]

@Mamun-Al-Babu-Shikder could you please review the PR

We are targeting this in v1.8.0
Hopefully we will look into this after version 1.7.0 is released.

Thank you for your valuable time and effort.