[BEAM-1065] FileBasedSource: replace SeekableByteChannel with open(spec, startingPosition)

• Type: Sub-task
• Status: Open
• Priority: P3
• Resolution: Unresolved
• Component/s: sdk-java-core
• Labels: Clarified
• Assignee: Unassigned
• Reporter: Pei He
• Created: 01/Dec/16 02:43
• Updated: 12/Jan/22 03:50

Description

FileBasedReader should be able to open the file with the Source.getStartOffset(), and then read forward to find the first input element.

The benefits are:
1. It is easier to implement a ReadableByteChannel.
2. Dynamically splitting won't require file systems to support seeking.
3. Doesn't need to seek to position twice, which is what current API does.

Issue Links

• links to: GitHub Pull Request #1426