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Problem faced with Xtext when running in headless application [message #1770114]

Tue, 08 August 2017 13:22

vikas kuswaha

Messages: 4
Registered: August 2017

Junior Member

Hi,

I am facing an issue when running a scenario:

I am validating a xtext resource from both Eclipse UI as well as in headless.

My validation logic checks for duplicate across the projects.

When running through Eclipse UI,
JavaProjectsState container is loaded while running in headless mode, FlatResourceSetBasedAllContainersState is loaded and the container 'all' is coming as below:
[StateBasedContainer] container 'all' from org.eclipse.xtext.resource.containers.FlatResourceSetBasedAllContainersState

So duplicate issue does not come if the resource exist in indirect reference project in Eclipse UI run, as the resource is looked upon the different container.
But when running in headless, duplicate issue comes as the container is one for all direct and indirect reference projects.

Is there any way to solve the issue in headless run? Please suggest.
Thanks.

Regards
Vikas

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Re: Problem faced with Xtext when running in headless application [message #1770157 is a reply to message #1770114]

Tue, 08 August 2017 16:58

Christian Dietrich

Messages: 14068
Registered: July 2009

Senior Member

hmmm, am not sure if i get what your problem is. please explain in more details.
and have a look what xbase does
in ui by org.eclipse.xtext.xbase.ui.validation.ProjectAwareUniqueClassNameValidator beeing used
in standalone by org.eclipse.xtext.xbase.validation.UniqueClassNameValidator beeing used

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Re: Problem faced with Xtext when running in headless application [message #1770826 is a reply to message #1770157]

Thu, 17 August 2017 12:33

vikas kuswaha

Messages: 4
Registered: August 2017

Junior Member

Hi Christian,

When running in Eclipse UI, all of my projects are in different container ,e.g [[StateBasedContainer] container 'Project1' from org.eclipse.xtext.ui.containers.JavaProjectsState@4f84c9bb, [StateBasedContainer] container 'Project2' from org.eclipse.xtext.ui.containers.JavaProjectsState@4f84c9bb

But when running in standalone setup my projects are in 'all' container e.g
[StateBasedContainer] container 'all' from org.eclipse.xtext.resource.containers.FlatResourceSetBasedAllContainersState@420321a6

Is there any way I could have different containers for my projects in standalone setup?

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Re: Problem faced with Xtext when running in headless application [message #1770838 is a reply to message #1770826]

Thu, 17 August 2017 14:00

Christian Dietrich

Messages: 14068
Registered: July 2009

Senior Member

standalone != headless != eclipse.

so what do you mean by "my projects in standalone setup"

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Re: Problem faced with Xtext when running in headless application [message #1770840 is a reply to message #1770838]

Thu, 17 August 2017 14:08

Christian Dietrich

Messages: 14068
Registered: July 2009

Senior Member

if you really mean headless you need to make sure

- the plugins are activated
- you add bindings similar to the ones in MyDslUiModule, AbstractMyDslUiModule, DefaultUiModule etc.
e.g.
public com.google.inject.Provider<org.eclipse.xtext.resource.containers.IAllContainersState> provideIAllContainersState() {
return org.eclipse.xtext.ui.shared.Access.getJavaProjectsState();
}

=> would be interesting what you did customize to get stuff running headless.

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Re: Problem faced with Xtext when running in headless application [message #1770880 is a reply to message #1770840]

Fri, 18 August 2017 10:28

vikas kuswaha

Messages: 4
Registered: August 2017

Junior Member

Hi Christian,

Can I use xtext.ui component in headless? org.eclipse.xtext.ui.shared.Access.getJavaProjectsState()

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Re: Problem faced with Xtext when running in headless application [message #1770882 is a reply to message #1770880]

Fri, 18 August 2017 10:34

Christian Dietrich

Messages: 14068
Registered: July 2009

Senior Member

yes and no,

there are parts you can use and parts you cant
i know guy that decide inside the activator of mydslui if the mydsluimodule is used or a custom headlessmydslmodule with stuff copied from mydsluimodule/abstractmydsluimodule/defaultuimodule that is not swt/workbench dependent

the real question: why doesnt your code run in real standalone mode.
what would be preferred.

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Re: Problem faced with Xtext when running in headless application [message #1770885 is a reply to message #1770882]

Fri, 18 August 2017 11:40

vikas kuswaha

Messages: 4
Registered: August 2017

Junior Member

Ok..My code runs in standalone mode but the issue is with different behaviour in Eclipse UI and headless mode.
for validating in headless application, I provide all my workspace projects which exists in one container and then when validation happens for duplicate , multiple entity is found as all projects are existing in one container.
But in Eclipse UI each project is a separate container and validated in that container.

I would try to explain in more detail.

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