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https://issues.apache.org/jira/browse/CASSANDRA-8755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14948175#comment-14948175
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Alexander Shopov commented on CASSANDRA-8755:
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Hello,
I am Alexander Shopov and would like to lend a hand with this patch.
I have updated it and I am attaching it to this bug report.
Only 11 files are changed. I have incorporated Oded's recommendation and
extended them as the fast path also works in cases like "\n". I have also
replaced String.replaceAll with String.replace in cases where regex literals
rather than meta characters are used - the regex is still constructed but this
goes via special and faster 'LITERAL' path.
I will be very surprised if this change buys measurable performance. If not - I
think this issue can be closed.
In case you decide to actually merge - please also add Mengyu Zhang in the
commit message as he started this.
> Replace trivial uses of String.replace/replaceAll/split with StringUtils
> methods
> --------------------------------------------------------------------------------
>
> Key: CASSANDRA-8755
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8755
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jaroslav Kamenik
> Priority: Trivial
> Labels: lhf
> Attachments: trunk-8755.patch, trunk-8755.txt
>
>
> There are places in the code where those regex based methods are used with
> plain, not regexp, strings, so StringUtils alternatives should be faster.
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