This is what my high level thought and design, please correct me if I am wrong.
1) We are using Spring Shell for hudi cli and for each command we have class 
and methods annotated with CliCommand
2) We initiate the static file system fs once we connect to the table and then 
all operations interact with that fs

On the similar lines, we can write a Spring Boot app  -
1) Which will spin up a new microservices server and in place of CliCommand  we 
will have Spring Boot end point
2) Since microservices are stateless, we can't rely on static filesytem 
variable fs. So in place of that we can have a map<user_session_id,fs> with 
auto invalidation after specified time
3) We will integrate this service with LDAP using Spring Security etc and 
authorisation at table and commands/endpoint level

So we should be able to leverage most of the CLI code with some modification.

I am deferring UI as of now if we are ok with the service design but if we go 
with the basic UI, we can just have a tree of tables on the left with all 
greyed out. Once user connects to the table, then relevant context menu options 
will be enabled depending upon user authorisation. The output of the command 
can be printed on the right panel leveraging the CLI output format.


On 2020/07/07 23:52:15, Vinoth Chandar <vin...@apache.org> wrote: 
> Nope. We can begin on a fresh slate. Feel free to even create a new RFC, if
> that does not fit with what you have in mind..
> 
> 
> 
> On Mon, Jul 6, 2020 at 6:31 AM tanu dua <tanu.dua...@gmail.com> wrote:
> 
> > Sure me and my team can think of in contributing here. May I know if
> > something has already kicked off and the technologies that are used to
> > build the services and UI ?
> >
> > On Mon, 6 Jul 2020 at 5:26 PM, Vinoth Chandar <vin...@apache.org> wrote:
> >
> > > Hi Tanuj,
> > >
> > > Good idea to have a service/UI..  There is an inactive proposal around
> > > this, if you want to revive and drive it forward.
> > >
> > https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=130027233
> > >
> > > Thanks
> > > Vinoth
> > >
> > > On Sun, Jul 5, 2020 at 11:07 PM Tanuj <tanu.dua...@gmail.com> wrote:
> > >
> > > > Hi all,
> > > > HUDI CLI is a great tool but I believe the biggest limitation of HUDI
> > CLI
> > > > is that you can only access it from shell and in the higher
> > environments
> > > we
> > > > may not get a shell to execute the commands.
> > > >
> > > > How about exposing HUDI CLI as a service backed by LDAP and with all
> > > > proper authorisation may be as a Spring Boot service ?
> > > >
> > > > Thanks.
> > > >
> > >
> >
> 

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