[LOGBACK-1409] FileFilterUtil.filesInFolderMatchingStemRegex resuses compiled pattern #581
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FileFilterUtil.filesInFolderMatchingStemRegex resuses compiled pattern to avoid expensive regex recompilation for each file comparison. Signed-off-by: David Schlosnagle <davids@palantir.com>
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Hi @ceki , I am curious if you would consider this PR. |
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@schlosna Thank you for this PR. |
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Fixes LOGBACK-1409
While reviewing some JFR from a service using logback, I noticed some significant allocations and processing being done by
ch.qos.logback.core.rolling.helper.FileFilterUtil$3.accept(File, String)where it was recompiling a regex for each listed file as part of the FileFilter.This PR compiles the pattern once and reuses it for each file.