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From "Michael Armbrust (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-2603) Remove unnecessary toMap and toList in converting Java collections to Scala collections JsonRDD.scala
Date Thu, 24 Jul 2014 18:22:38 GMT

     [ https://issues.apache.org/jira/browse/SPARK-2603?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Armbrust resolved SPARK-2603.
-------------------------------------

    Resolution: Fixed

> Remove unnecessary toMap and toList in converting Java collections to Scala collections
JsonRDD.scala
> -----------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-2603
>                 URL: https://issues.apache.org/jira/browse/SPARK-2603
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Yin Huai
>            Assignee: Yin Huai
>            Priority: Minor
>
> In JsonRDD.scalafy, we are using toMap/toList to convert a Java Map/List to a Scala one.
These two operations are pretty expensive because they read elements from a Java Map/List
and then load to a Scala Map/List. We can use Scala wrappers to wrap those Java collections
instead of using toMap/toList.



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