[FLINK-28556] Extract header fields of Buffer into a BufferHeader class for blocking shuffle file IO

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.16.0
• Component/s: Runtime / Network
• Labels: pull-request-available
• Assignee: Yuxin Tan
• Reporter: Yingjie Cao
• Created: 15/Jul/22 02:39
• Updated: 22/Jul/22 00:05
• Resolved: 22/Jul/22 00:05

Description

This is a small code refactor which also can be reused by following PRs.

Issue Links

• links to: GitHub Pull Request #20328