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Posted to user@olingo.apache.org by Alain <al...@gmail.com> on 2022/03/10 15:53:37 UTC
What is technical service (lib/tecsvc)
Searching through the code I found a lib called techsvc that doesn't seem
to be documented.
Finally found this JIRA issue:
https://issues.apache.org/jira/browse/OLINGO-266 where it is simply listed
as "Reference server implementation for a 4.0 server".
From what I've been gathering, this seems to be a reference implementation
and clearly that should be promoted as a key reference and starting point
along with the "great" tutorials that are out there on the site.
So what is it and why isn't there any information about that lib.
Cheers,
Alain
Re: What is technical service (lib/tecsvc)
Posted by Alain <al...@gmail.com>.
Hi Michael,
Thanks for the information. But as of now I've mainly reused and repurposed
the tecsvc for my implementation. I would say that the area that is a bit
more challenging (and was expected) is the DataProcessor since this is
quite different and tecsvc is really just hard-coded data that doesn't
mimic normal data fetching.
Cheers,
Alain
On Thu, Mar 10, 2022 at 11:32 AM mibo <mi...@apache.org> wrote:
> Hi Daniel and Alain,
>
> Can confirm that the 'server-tecsvc' is a reference implementation which
> was used to implement all OData features (e.g. all datatypes, collections,
> actions, … ) which were possible. Therefore the model and data was only
> technical.
> In the V2 project it was the 'odata-ref' module but there with a bit more
> realistic use case.
> This can be deployed to a servlet container (e.g. Tomcat) and run.
> For Olingo it is also used for additional (black box) testing (see the
> 'server-test' module).
>
> > ...it should be a bit more documented.
>
> Agree, however from the priorities it was more important to have
> documentation on how to use the Olingo library to implement an OData
> service.
> Documentation for the ’server-tecsvc’ would only be required if someone
> wants to add new OData features (e.g. wich specification updates).
>
> @Alain: Not sure how helpful it is for the 'to move our own server from a
> basic implementation…’ part.
> Maybe here the tutorial and samples may be a better help:
> https://olingo.apache.org/doc/odata4/index.html#olingo-for-server-usage
>
> Kind Regards, Michael
> Am 10. März 2022, 17:20 +0100 schrieb Alain <al...@gmail.com>:
>
> Daniel,
>
> I believe your own questions confirm why it should be a bit more
> documented.
>
> I'm exploring the project right now, and it seems to cover just about
> everything, like a real reference implementation (paging, async, etc) and
> I'm starting to think about using it to move our own server from a basic
> implementation to a full implementation, obviously keeping in place the
> parts related to our data model (EMF in our case).
>
> Alain
>
> On Thu, Mar 10, 2022 at 11:08 AM Daniel Heid <ma...@daniel-heid.de> wrote:
>
>> P.S.:
>>
>> In
>> https://github.com/apache/olingo-odata4/blob/master/lib/server-tecsvc/src/main/webapp/index.jsp
>> it says "Technical Service"
>>
>>
>> https://github.com/apache/olingo-odata4/blob/master/lib/server-tecsvc/src/main/java/org/apache/olingo/server/tecsvc/TechnicalServlet.java
>> looks like a web application that allows you provide an OData service using
>> Tomcat or another web application container runtime.
>>
>> Seems like you could put any entity into the service. Or perhaps it's a
>> proxy?
>>
>> Alain <al...@gmail.com> schrieb am Do., 10. März 2022, 16:53:
>>
>>> Searching through the code I found a lib called techsvc that doesn't
>>> seem to be documented.
>>>
>>> Finally found this JIRA issue:
>>> https://issues.apache.org/jira/browse/OLINGO-266 where it is simply
>>> listed as "Reference server implementation for a 4.0 server".
>>>
>>> From what I've been gathering, this seems to be a reference
>>> implementation and clearly that should be promoted as a key reference and
>>> starting point along with the "great" tutorials that are out there on the
>>> site.
>>>
>>> So what is it and why isn't there any information about that lib.
>>>
>>> Cheers,
>>> Alain
>>>
>>>
Re: What is technical service (lib/tecsvc)
Posted by mibo <mi...@apache.org>.
Hi Daniel and Alain,
Can confirm that the 'server-tecsvc' is a reference implementation which was used to implement all OData features (e.g. all datatypes, collections, actions, … ) which were possible. Therefore the model and data was only technical.
In the V2 project it was the 'odata-ref' module but there with a bit more realistic use case.
This can be deployed to a servlet container (e.g. Tomcat) and run.
For Olingo it is also used for additional (black box) testing (see the 'server-test' module).
> ...it should be a bit more documented.
Agree, however from the priorities it was more important to have documentation on how to use the Olingo library to implement an OData service.
Documentation for the ’server-tecsvc’ would only be required if someone wants to add new OData features (e.g. wich specification updates).
@Alain: Not sure how helpful it is for the 'to move our own server from a basic implementation…’ part.
Maybe here the tutorial and samples may be a better help: https://olingo.apache.org/doc/odata4/index.html#olingo-for-server-usage
Kind Regards, Michael
Am 10. März 2022, 17:20 +0100 schrieb Alain <al...@gmail.com>:
> Daniel,
>
> I believe your own questions confirm why it should be a bit more documented.
>
> I'm exploring the project right now, and it seems to cover just about everything, like a real reference implementation (paging, async, etc) and I'm starting to think about using it to move our own server from a basic implementation to a full implementation, obviously keeping in place the parts related to our data model (EMF in our case).
>
> Alain
>
> > On Thu, Mar 10, 2022 at 11:08 AM Daniel Heid <ma...@daniel-heid.de> wrote:
> > > P.S.:
> > >
> > > In https://github.com/apache/olingo-odata4/blob/master/lib/server-tecsvc/src/main/webapp/index.jsp it says "Technical Service"
> > >
> > > https://github.com/apache/olingo-odata4/blob/master/lib/server-tecsvc/src/main/java/org/apache/olingo/server/tecsvc/TechnicalServlet.java looks like a web application that allows you provide an OData service using Tomcat or another web application container runtime.
> > >
> > > Seems like you could put any entity into the service. Or perhaps it's a proxy?
> > >
> > > > Alain <al...@gmail.com> schrieb am Do., 10. März 2022, 16:53:
> > > > > Searching through the code I found a lib called techsvc that doesn't seem to be documented.
> > > > >
> > > > > Finally found this JIRA issue: https://issues.apache.org/jira/browse/OLINGO-266 where it is simply listed as "Reference server implementation for a 4.0 server".
> > > > >
> > > > > From what I've been gathering, this seems to be a reference implementation and clearly that should be promoted as a key reference and starting point along with the "great" tutorials that are out there on the site.
> > > > >
> > > > > So what is it and why isn't there any information about that lib.
> > > > >
> > > > > Cheers,
> > > > > Alain
> > > > >
Re: What is technical service (lib/tecsvc)
Posted by Alain <al...@gmail.com>.
Daniel,
I believe your own questions confirm why it should be a bit more documented.
I'm exploring the project right now, and it seems to cover just about
everything, like a real reference implementation (paging, async, etc) and
I'm starting to think about using it to move our own server from a basic
implementation to a full implementation, obviously keeping in place the
parts related to our data model (EMF in our case).
Alain
On Thu, Mar 10, 2022 at 11:08 AM Daniel Heid <ma...@daniel-heid.de> wrote:
> P.S.:
>
> In
> https://github.com/apache/olingo-odata4/blob/master/lib/server-tecsvc/src/main/webapp/index.jsp
> it says "Technical Service"
>
>
> https://github.com/apache/olingo-odata4/blob/master/lib/server-tecsvc/src/main/java/org/apache/olingo/server/tecsvc/TechnicalServlet.java
> looks like a web application that allows you provide an OData service using
> Tomcat or another web application container runtime.
>
> Seems like you could put any entity into the service. Or perhaps it's a
> proxy?
>
> Alain <al...@gmail.com> schrieb am Do., 10. März 2022, 16:53:
>
>> Searching through the code I found a lib called techsvc that doesn't seem
>> to be documented.
>>
>> Finally found this JIRA issue:
>> https://issues.apache.org/jira/browse/OLINGO-266 where it is simply
>> listed as "Reference server implementation for a 4.0 server".
>>
>> From what I've been gathering, this seems to be a reference
>> implementation and clearly that should be promoted as a key reference and
>> starting point along with the "great" tutorials that are out there on the
>> site.
>>
>> So what is it and why isn't there any information about that lib.
>>
>> Cheers,
>> Alain
>>
>>
Re: What is technical service (lib/tecsvc)
Posted by Daniel Heid <ma...@daniel-heid.de>.
P.S.:
In
https://github.com/apache/olingo-odata4/blob/master/lib/server-tecsvc/src/main/webapp/index.jsp
it says "Technical Service"
https://github.com/apache/olingo-odata4/blob/master/lib/server-tecsvc/src/main/java/org/apache/olingo/server/tecsvc/TechnicalServlet.java
looks like a web application that allows you provide an OData service using
Tomcat or another web application container runtime.
Seems like you could put any entity into the service. Or perhaps it's a
proxy?
Alain <al...@gmail.com> schrieb am Do., 10. März 2022, 16:53:
> Searching through the code I found a lib called techsvc that doesn't seem
> to be documented.
>
> Finally found this JIRA issue:
> https://issues.apache.org/jira/browse/OLINGO-266 where it is simply
> listed as "Reference server implementation for a 4.0 server".
>
> From what I've been gathering, this seems to be a reference implementation
> and clearly that should be promoted as a key reference and starting point
> along with the "great" tutorials that are out there on the site.
>
> So what is it and why isn't there any information about that lib.
>
> Cheers,
> Alain
>
>
Re: What is technical service (lib/tecsvc)
Posted by Daniel Heid <ma...@daniel-heid.de>.
Hi Alan,
to be honest: I don't like that part of the Olingo project. It's hard to
maintain all the "extras". I think it would be the best to split the Olingo
server and client libs from such exotic parts like the techsvc.
Best regards,
Daniel
Alain <al...@gmail.com> schrieb am Do., 10. März 2022, 16:53:
> Searching through the code I found a lib called techsvc that doesn't seem
> to be documented.
>
> Finally found this JIRA issue:
> https://issues.apache.org/jira/browse/OLINGO-266 where it is simply
> listed as "Reference server implementation for a 4.0 server".
>
> From what I've been gathering, this seems to be a reference implementation
> and clearly that should be promoted as a key reference and starting point
> along with the "great" tutorials that are out there on the site.
>
> So what is it and why isn't there any information about that lib.
>
> Cheers,
> Alain
>
>