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https://issues.apache.org/jira/browse/FELIX-2605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Hay updated FELIX-2605:
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Attachment: FilterHandler.java-regexp.patch
Attaching a patch file that implements the proposed solution.
> FilterHandler should pre-compile regular expression
> ---------------------------------------------------
>
> Key: FELIX-2605
> URL: https://issues.apache.org/jira/browse/FELIX-2605
> Project: Felix
> Issue Type: Improvement
> Components: HTTP Service
> Affects Versions: http-2.0.4
> Reporter: David Hay
> Attachments: FilterHandler.java-regexp.patch
>
>
> The implementation of FilterHandler has a potential performance problem.
> Each time the "handle" method is called, it goes through a matching process
> that includes the following code:
> return uri.matches(this.pattern)
> The problem is that this compiles the regular expression every time this
> method is called, a potentially expensive operation.
> The pattern should be compiled using Pattern.compile and then re-used for
> each call to "matches" as follows:
> return this.regex.matcher(uri).matches();
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