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https://issues.apache.org/jira/browse/BEAM-5910?focusedWorklogId=161697&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-161697
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ASF GitHub Bot logged work on BEAM-5910:
----------------------------------------
Author: ASF GitHub Bot
Created on: 01/Nov/18 18:53
Start Date: 01/Nov/18 18:53
Worklog Time Spent: 10m
Work Description: jklukas opened a new pull request #6914: [BEAM-5910]
Add lastModified field to MatchResult.Metadata
URL: https://github.com/apache/beam/pull/6914
In the Java SDK, the Filesystems.match facilities are aimed primarily at
listing file names and collect very limited additional metadata from the
filesystem (sizeBytes and isReadSeekEfficient). This PR adds a new
`lastModified` field to that list.
This could be a basis for a future improvement to
FileIO.match(...).continuously(...) where we could let the user opt to poll not
just for new file names, but also for existing file names if their content has
been updated.
In the near term, the addition of lastModified to Metadata will allow users
to implement their own polling logic on top of Filesystems.match to detect and
download new files from any of the supported filesystems.
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Post-Commit Tests Status (on master branch)
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Python | [](https://builds.apache.org/job/beam_PostCommit_Python_Verify/lastCompletedBuild/)
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Issue Time Tracking
-------------------
Worklog Id: (was: 161697)
Time Spent: 10m
Remaining Estimate: 0h
> FileSystems should retrieve lastModified time
> ---------------------------------------------
>
> Key: BEAM-5910
> URL: https://issues.apache.org/jira/browse/BEAM-5910
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Jeff Klukas
> Assignee: Jeff Klukas
> Priority: Minor
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In the Java SDK, the Filesystems.match facilities are aimed at listing file
> names and collect very limited additional metadata from the filesystem
> (sizeBytes and isReadSeekEfficient). I propose adding a new field for
> lastModified time to MatchResult.Metadata that each FileSystem would populate
> when listing files.
> This would be a basis for a future improvement to
> FileIO.match(...).continuously(...) where we could let the user opt to poll
> not just for new file names, but also for existing file names if their
> content has been updated.
> In the near term, the addition of lastModified to Metadata would allow users
> to implement their own polling logic on top of Filesystems.match to detect
> and download new files from any of the supported filesystems.
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