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Posted to issues@flink.apache.org by "Bowen Li (JIRA)" <ji...@apache.org> on 2018/10/30 07:00:00 UTC
[jira] [Updated] (FLINK-10168) support reading files whose
modification time is after a given timestamp
[ https://issues.apache.org/jira/browse/FLINK-10168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bowen Li updated FLINK-10168:
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Summary: support reading files whose modification time is after a given timestamp (was: support filtering files by modified/created time in StreamExecutionEnvironment.readFile())
> support reading files whose modification time is after a given timestamp
> ------------------------------------------------------------------------
>
> Key: FLINK-10168
> URL: https://issues.apache.org/jira/browse/FLINK-10168
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Affects Versions: 1.6.0
> Reporter: Bowen Li
> Assignee: Bowen Li
> Priority: Major
> Fix For: 1.7.0
>
>
> support filtering files by modified/created time in {{StreamExecutionEnvironment.readFile()}}
> for example, in a source dir with lots of file, we only want to read files that is created or modified after a specific time.
> This API can expose a generic filter function of files, and let users define filtering rules. Currently Flink only supports filtering files by path. What this means is that, currently the API is {{FileInputFormat.setFilesFilters(PathFiter)}} that takes only one file path filter. A more generic API that can take more filters can look like this 1) {{FileInputFormat.setFilesFilters(List (PathFiter, ModifiedTileFilter, ... ))}}
> 2) or {{FileInputFormat.setFilesFilters(FileFiter),}} and {{FileFilter}} exposes all file attributes that Flink's file system can provide, like path and modified time
> I lean towards the 2nd option, because it gives users more flexibility to define complex filtering rules based on combinations of file attributes.
>
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