Bintray JCenter (and MavenCentral) download stats

[Reza Rahman]

Werner,

I am redirecting your email to the Jakarta EE Ambassadors alias as I believe it will get the right level of attention it deserves there.

This is really good information. I think it is worth the effort to pull all the data for all the new Jakarta artifacts and write a blog entry. If you don't want to write it, maybe you could collaborate with someone else?

A couple of suggestions: I would make sure to mention that this is preliminary data since most people probably haven't upgraded to Jakarta EE 8 just yet. I recommend leaving out MicroProfile from any write up or analysis until the core leadership of MicroProfile asks for such a thing - unless of course there is a specific valuable, good faith learning you are trying to understand about MicroProfile.

What are your thoughts?

Reza Rahman
Jakarta EE Ambassador, Author, Blogger, Speaker

Please note views expressed here are my own as an individual community member and do not reflect the views of my employer.

On 4/7/2020 8:32 PM, Werner Keil wrote:

Hi,

Since Bintray and JCenter introduced a new UI every newer artifact (including mirrors of MavenCentral I am pretty sure) now shows the total downloads, even if the artifact does not expose the stats explicitly.

As we made the download figures for JSRs like 363 and 385 available ever since, I know this number is the lifetime downloads for a particular artifact.

Just checking two MicroProfile APIs,

MP Config API https://bintray.com/beta/#/bintray/jcenter/org.eclipse.microprofile.config:microprofile-config-api?tab=overview

says 150848 downloads.

While e.g. MP Reactive Messaging API https://bintray.com/beta/#/bintray/jcenter/org.eclipse.microprofile.reactive.messaging:microprofile-reactive-messaging-api?tab=overview 

says only 384 downloads.

Taking for example Jakarta Rest API  https://bintray.com/beta/#/bintray/jcenter/jakarta.ws.rs:jakarta.ws.rs-api?tab=overview

says 805423 downloads. 

Only under the new Jakarta groupId, that of course also includes the usage by MicroProfile ;-)

I'm not sure, if JFrog made those numbers available via API unless you pay or subscribe something, but maybe if a former colleague asks those who now work there, e.g. Steven Chin there could be ways to make it available, or Eclipse Foundation might ask for it to display on certain project pages.

Werner

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[Rudy De Busscher]

These numbers can be misleading as the current pipelines download the artifact for each build of a project.

But other companies still use a local Nexus/JFrog/Artifactory which means that they don't perform the download every time.

So any conclusion based on these download number, or even surveys as you don't reach everyone, can be dodgy.

Based on that example, you can only say Reactive Messaging is less used as JAX-RS. But you don't need statistics for that.

Rudy

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[m.reza.rahman]

I am dropping the Jakarta EE community alias for this. It was not my intent to add it in the first place.

I think the logical next steps would be to share the numbers for all the Jakarta EE specifications. What do you think?

Rudy pointed out a legitimate issue with these numbers on the Jakarta EE Ambassadors alias. I advise paying attention to that in any potential write up. These are very early days and it is important to avoid any possibility of giving misleading impressions knowingly.

Reza Rahman

Jakarta EE Ambassador, Author, Blogger, Speaker

Please note views expressed here are my own as an individual community member and do not reflect the views of my employer.

Sent via the Samsung Galaxy S7, an AT&T 4G LTE smartphone

-------- Original message --------

From: Werner Keil <werne...@gmail.com>

Date: 4/8/20 3:33 AM (GMT-05:00)

To: Reza Rahman <m.reza...@gmail.com>

Cc: Jakarta EE community discussions <jakarta.ee...@eclipse.org>

Subject: Re: Bintray JCenter (and MavenCentral) download stats

Reza,

That's a good idea, thanks. 

It is only for the new Jakarta specs. 

At least my logged in view did not show certain artifacts like Spring, JodaTime etc that were around for a while. 

I did not check the likes of Dropwizard or Micronaut, etc. either, but I guess it allows to compare those that are used with Maven quite well. 

Also a good sign for adopters like in today's call. Either to show most popular artifacts that can use help or those that may not be so widely used because they lack progress or  stability. 

It certainly shows which ones are more popular because REST nearly got 1 Mio downloads only for the new namespace while others are hardly used. 

Cheers, 

Werner 

[Kito Mann]

How about adding these stats to our tracking spreadsheet?

___

Kito D. Mann | @kito99 | Java Champion | Google Developer Expert | LinkedIn

Expert training and consulting: PrimeFaces, PrimeNG, JSF, Java EE, Web Components, Angular

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