[APEXMALHAR-2116] File Record reader module

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.5.0
• Assignee: Yogi Devendra
• Reporter: Yogi Devendra
• Created: 13/Jun/16 10:28
• Updated: 04/Sep/16 01:40
• Resolved: 31/Jul/16 19:28

Description

This will be useful for the usecases which involves reading from files "line by line" in parallel and emit each line as seperate tuple.

Proposal is to have new Module which would allow users to monitor directories, read files and emit data records(tuple). Records are based on record separator (e.g. newline) or fixed size (no of bytes).

Plan is as follows:
1. New operator FileRecordReader which will extend BlockReader.
2. This operator will have configuration option to select mode for FIXED_LENGTH, SEPARATOR_BASED recors.
3. Using appropriate ReaderContext based on mode.
4. New module FileRecordReaderModule which wraps (FileSplitter (existing) + FileRecordReader operator)

Reason for having different operator than BlockReader is because output port signature is different than BlockReader.

Issue Links

• is related to: APEXMALHAR-2196 S3 Record reader module
• links to: GitHub Pull Request #326