Hello,

Here is the proposal of this project.[1]
In a nutshell, the goal of this project is to intergrate Portage with Maven, or to translate Maven pom.xml into ebuild files.
And the most related project should be java-ebuilder, which aims at processing pom.xml and forming an equivalent ebuild.[2]
The deliverable of this project will be an overlay resolving all the dependencies of spark, which is widely used for big data processing, so my mentor named the project "big data infrastructure".

Actually it is not related to big data processing or any "big data".

I am sorry if it confused you, and I am glad that you are interested in this project.

Regards,
Zhang Zongyu

[1] https://summerofcode.withgoogle.com/projects/#4994566568017920
[2] https://github.com/6-6-6/java-ebuilder 

EBo <ebo@sandien.com> 于 2020年7月6日周一 上午12:18写道：
Out of curiosity, can you point me to any project write up that was
probably part of the proposal?  One of my last big-data projects started
out with a 3.5 petabyte repository and filtered on down to cover 10
million contiguous kilometers.  We did not use Maven, and I would be
curious to see where the project is going.  Now that I know about this I
will try to follow it a bit more.

   Best of success!

On Jul 5 2020 10:05 AM, Zhang Zongyu wrote:
> Hello,
>
> This week I have done a lot of repetitive work. That is, to go
> through
> all of the ebuild files in Gentoo Repository and to get them the
> equivalent GroupId and ArtifactId in Maven Central. There are more
> than 500 packages in dev-java/ and java-virtual/ category, and
> sometimes one Gentoo package may correspond to more than one Maven
> artifact, so it took me a lot of time to complete them. And here is
> my
> lookup up table which covers all packages in dev-java/ and maps
> "category/package:slot" into "groupId:artifactId".[1] As a result,
> spark-core can make use of more than 100 Gentoo native packages now.
>
> Besides, I have also added java-ebuilder some features. It can check
> the metadata of a package and get the correct SLOT, and it can make
> ebuild unpack "Maven Central distributed source files" into proper
> ${JAVA_SRC_DIR} now.
>
> Next week I am going to test and add jaxb (javax.xml.bind:jaxb-api
> and
> javax.xml.bind:jaxb-impl) and some newer version packages which are
> required by spark-core, and I hope the newer version ebuild files
> could be accepted by Gentoo-Java team. The prototype of the ebuild
> files that are just generated by java-ebuilder are listed in [2].
>
> Regards,
> Zhang Zongyu
>
> [1] lookup table containing all packages from dev-java/
>
> https://github.com/6-6-6/JEbuilder/blob/master/app-portage/java-ebuilder/files/scripts/LUT/LUT
> [2] a prototype overlay
> https://github.com/6-6-6/spark-overlay/tree/master/dev-java