Github user bzz commented on the issue:
https://github.com/apache/zeppelin/pull/1276
@rockiey thank you for contributing!
Highcharts is a great library, but I belive it will be hard to include it
as a dependency to ASF project.
If highchart gets included to project codebase, it will end up in
convenience release binary the project that is distributed by ASF, so we must
make sure that it's license complies with legal requirements from Apache
Software Foundation.
Here is a process that needs to be done, in order to archive the compliance:
- verify that it's license belongs to ASF
[category-a](http://www.apache.org/legal/resolved.html#category-a) license, if
that is the case - it can be included as dependency. Then
- full text of the license must be included in the
`zeppelin-distribution/src/bin_license/licenses`, then
- record must be added to `zeppelin-distribution/src/bin_license/LICENSE`
- copyrights notice, in case it exists needs to be recorded in
`zeppelin-distribution/src/bin_license/NOTICE`
Looking at https://github.com/knockdata/zeppelin-highcharts - it looks
great and it does acutally make a lot of sence to have it as separate binary,
so that user can add it at his own will (and be responsible for adhering it's
licence terms).
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