[SCB-1385] Provide a common way to pass GID and LID

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: pack-0.5.0
• Component/s: Saga
• Assignee: Willem Jiang
• Reporter: Willem Jiang
• Created: 18/Jul/19 11:38
• Updated: 26/Jun/23 12:59
• Resolved: 22/Aug/19 03:43

Description

When using SNS https://spring.io/projects/spring-cloud-aws to pass the invocation across the services, it's quite important for Omega to pass the Global Transaction ID and Local Transaction ID across the services.

I just spend some time to check about the message API of spring-cloud-aws, it has message converters (https://cloud.spring.io/spring-cloud-static/spring-cloud-aws/2.2.0.M1/#_using_message_converters) which could be used to pass the GID and LID through the business object.

After talking with ZhangLei about this issue, he suggested that we could introduce a wrapper class for the user to pass the GID and LID across thread or VM. As Omega can intercept the method call, we can restore the GID and LID back to thread local variable before calling the intercepted method.

Issue Links

• is related to: SCB-1391 Add support for explicit tx context passing for TCC
• is related to: SCB-1389 Doc for SCB-1385
• links to: GitHub Pull Request #506