Aw: Re: new Nifi Processors

[Uwe Geercken]

Hello,

 

what would be the appropriate way to license the processors? Is it an annotation, a seperate license file or something else?

 

To the GPL3: This is what wikipedia says:

The GNU General Public License (GNU GPL or GPL) is a widely used free software license, which guarantees end users the freedom to run, study, share and modify the software.^[6] The license was originally written by Richard Stallman of the Free Software Foundation (FSF) for the GNU Project, and grants the recipients of a computer program the rights of the Free Software Definition.^[7] The GPL is a copyleft license, which means that derivative work can only be distributed under the same license terms. This is in distinction to permissive free software licenses, of which the BSD licenses and the MIT License are widely used examples. GPL was the first copyleft license for general use.

Historically, the GPL license family has been one of the most popular software licenses in the free and open-source software domain.^{[6][8][9][10][11][12][13]} Prominent free software programs licensed under the GPL include the Linux kernel and the GNU Compiler Collection (GCC). David A. Wheeler argues that the copyleft provided by the GPL was crucial to the success of Linux-based systems, giving the programmers who contributed to the kernel the assurance that their work would benefit the whole world and remain free, rather than being exploited by software companies that would not have to give anything back to the community.^[14]

 

The ruleengine is under GPL3. So users acan freely use, embed or share it. It is only derivative work, that needs to be distributed under the same lisence terms. So what would be the problem with the Nifi processor? Can somebody explain that to me.

 

Also, I would be glad to have a quick explanation of what the core differences or advantages are of Apache 2.0 versus GPL3. That would help me understand the issue better.

 

Greetings and thanks for feedback.

 

Uwe

 

 

Gesendet: Mittwoch, 01. März 2017 um 03:33 Uhr
Von: "Angry Duck Studio" <angryduckstu...@gmail.com>
An: users@nifi.apache.org
Betreff: Re: new Nifi Processors

Hi, Uwe,

 

These look useful. However, typically custom processors are either Apache 2.0 or MIT licensed. These don't seem to specify a license, but your business rule engine (jare) seems to be GPL 3.0 licensed. I'm not sure that fits with most uses of NiFi.

 

Can you please clarify?

 

Thanks

 

-Matt

 

On Tue, Feb 28, 2017 at 4:47 PM, Uwe Geercken <uwe.geerc...@web.de> wrote:

Hello everyone,

I just wanted to let you know, that I have created four processors for Nifi

1) GenerateData - generates random data (test data) based on word lists, regular expressions or purely random
2) RuleEngine - a ruleengine which allows to process complex business logic. But the logic is maintained in a separate web app and thus outside of the flow. If the logic changes the flow does NOT have to change.
3) SplitToAttribute - splits a single CSV row into flow file attributes
4) MergeTemplate - merges flow file attributes with an Apache Velocity template and writes the result to the flow file content

Please give them a try and let me know your findings and thoughts.

https://github.com/uwegeercken/nifi_processors

rgds,

Uwe