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Posted to notifications@groovy.apache.org by "Patrick Julien (JIRA)" <ji...@apache.org> on 2015/06/26 19:00:15 UTC

[jira] [Created] (GROOVY-7478) Ability to Cache Patterns

Patrick Julien created GROOVY-7478:
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             Summary: Ability to Cache Patterns
                 Key: GROOVY-7478
                 URL: https://issues.apache.org/jira/browse/GROOVY-7478
             Project: Groovy
          Issue Type: New Feature
          Components: class generator
    Affects Versions: 2.4.3, 2.3.9
            Reporter: Patrick Julien
            Priority: Minor


It seems {{InvokeHelper}} cannot cache the results of {{Pattern#compile}} at all when running embedded Groovy scripts.

When this is combined with regular expressions and a somewhat large number scripts, there is a very large hit to performance when these scripts need to be constantly run.

Using Java 8u40. and close to 10k scripts, the same 10k scripts are properly cached and reused but {{Pattern}} objects are constantly re-compiled.

I am using a {{ConcurrentHashMap}} at the moment to workaround the problem but having a supported way of controlling this behavior would be welcomed.





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