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https://issues.apache.org/jira/browse/SOLR-12725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16636869#comment-16636869
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ASF subversion and git services commented on SOLR-12725:
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Commit eba7bedadf65cda114544d2495cf264065efa7ab in lucene-solr's branch
refs/heads/master from Andrzej Bialecki
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=eba7bed ]
SOLR-12725: ParseDateFieldUpdateProcessorFactory should reuse ParsePosition.
> ParseDateFieldUpdateProcessorFactory should reuse ParsePosition
> ---------------------------------------------------------------
>
> Key: SOLR-12725
> URL: https://issues.apache.org/jira/browse/SOLR-12725
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Andrzej Bialecki
> Assignee: Andrzej Bialecki
> Priority: Minor
>
> {{ParseDateFieldUpdateProcessorFactory.parseInstant}} repeatedly calls all
> configured date parsers ({{DateTimeFormatter}}-s) for each incoming date-like
> field. However, it uses {{DateTimeFormatter.parse(dateStr)}} method that
> needs to allocate a throwaway instance of {{ParsePosition}}, instead of
> {{DateTimeFormatter.parse(dateStr, parsePosition)}}.
> Javadocs for this method suggest reusing (and reseting) a single instance of
> {{ParsePosition}} for multiple calls in order to reduce object allocations.
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