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Posted to dev@lucene.apache.org by "Pushkar Raste (JIRA)" <ji...@apache.org> on 2016/11/28 19:50:58 UTC

[jira] [Updated] (SOLR-9546) There is a lot of unnecessary boxing/unboxing going on in {{SolrParams}} class

     [ https://issues.apache.org/jira/browse/SOLR-9546?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pushkar Raste updated SOLR-9546:
--------------------------------
    Attachment:     (was: SOLR-9546_CloudMLTQParser.patch)

> There is a lot of unnecessary boxing/unboxing going on in {{SolrParams}} class
> ------------------------------------------------------------------------------
>
>                 Key: SOLR-9546
>                 URL: https://issues.apache.org/jira/browse/SOLR-9546
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Pushkar Raste
>            Assignee: Noble Paul
>            Priority: Minor
>         Attachments: SOLR-9546.patch
>
>
> Here is an excerpt 
> {code}
>   public Long getLong(String param, Long def) {
>     String val = get(param);
>     try {
>       return val== null ? def : Long.parseLong(val);
>     }
>     catch( Exception ex ) {
>       throw new SolrException( SolrException.ErrorCode.BAD_REQUEST, ex.getMessage(), ex );
>     }
>   }
> {code}
> {{Long.parseLong()}} returns a primitive type but since method expect to return a {{Long}}, it needs to be wrapped. There are many more method like that. We might be creating a lot of unnecessary objects here.
> I am not sure if JVM catches upto it and somehow optimizes it if these methods are called enough times (or may be compiler does some modifications at compile time)
> Let me know if I am thinking of some premature optimization



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