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Bundle activator on xtext [message #1831374]

Tue, 18 August 2020 13:16

Patrick Catillaz

Messages: 2
Registered: August 2020

Junior Member

Hello,

I have an Xtext project and try to allow simple java functions to extend the language by external user.
The goal is to allow the users to add custom functions

To do that I do the following :
1) I create an eclipse plugin with statics functions.
When I generate the jar a small annotation processor will build me an XML file.
Currently my jar must contain a dummy class that implement IStartup. (+

2) In my xtext project, I create a listener that activate the plugin created in step one and register all available functions.

It's work fine when I was only in Eclipse. But when I try to run with maven, I didn't found a way to activate my bundle.

Do you know how to do it?

Thanks in advance

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Re: Bundle activator on xtext [message #1831375 is a reply to message #1831374]

Tue, 18 August 2020 13:25

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

in standalone mode there is usually no osgi. Xtext offten solves these problems then via java ServiceLoader
see e.g.ResourceServiceProviderServiceLoader

i would assume you would have to come up with something similar

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Bundle activator on xtext [message #1831378 is a reply to message #1831375]

Tue, 18 August 2020 15:14

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

By run with Maven I presume you just mean run standalone for which it is essential that you invoke the XXXStandaloneSetup.doSetup() that Xtext kindly generates for you.

Regards

Ed Willink

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Re: Bundle activator on xtext [message #1831400 is a reply to message #1831378]

Wed, 19 August 2020 05:47

Patrick Catillaz

Messages: 2
Registered: August 2020

Junior Member

Quote:

in standalone mode there is usually no osgi. Xtext offten solves these problems then via java ServiceLoader
see e.g.ResourceServiceProviderServiceLoader

i would assume you would have to come up with something similar

Thanks, I will try with ServiceLoader

Ed Willink wrote on Tue, 18 August 2020 15:14

Hi

By run with Maven I presume you just mean run standalone for which it is essential that you invoke the XXXStandaloneSetup.doSetup() that Xtext kindly generates for you.

Regards

Ed Willink

Yes, following the message of Christian it's what I will try. My only assumption is the need to create needed files to use ServiceLoader (this jar will be made by business user and try to keep it simple.

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