[jira] [Assigned] (ARROW-6720) [JAVA][C++]Support Parquet Read and Write in Java

["Todd Farmer (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-6720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Farmer reassigned ARROW-6720:
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    Assignee:     (was: Chendi.Xue)

This issue was last updated over 90 days ago, which may be an indication it is no longer being actively worked. To better reflect the current state, the issue is being unassigned. Please feel free to re-take assignment of the issue if it is being actively worked, or if you plan to start that work soon.

> [JAVA][C++]Support Parquet Read and Write in Java
> -------------------------------------------------
>
>                 Key: ARROW-6720
>                 URL: https://issues.apache.org/jira/browse/ARROW-6720
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++, Java
>    Affects Versions: 0.15.0
>            Reporter: Chendi.Xue
>            Priority: Major
>          Time Spent: 38.5h
>  Remaining Estimate: 0h
>
> We added a new java interface to support parquet read and write from hdfs or local file.
> The purpose of this implementation is that when we loading and dumping parquet data in Java, we can only use rowBased put and get methods. Since arrow already has C++ implementation to load and dump parquet, so we wrapped those codes as Java APIs.
> After test, we noticed in our workload, performance improved more than 2x comparing with rowBased load and dump. So we want to contribute codes to arrow.
> since this is a total independent change, there is no codes change to current arrow codes. We added two folders as listed:  java/adapter/parquet and cpp/src/jni/parquet



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