Yogi Devendra created APEXMALHAR-2116:
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Summary: File Record reader module
Key: APEXMALHAR-2116
URL: https://issues.apache.org/jira/browse/APEXMALHAR-2116
Project: Apache Apex Malhar
Issue Type: New Feature
Reporter: Yogi Devendra
Assignee: Yogi Devendra
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.
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