How to put in custom scope/context (JobScoped - custom CDI scope) particular instance from request to make it injectable?

Question

Saying in a nutshell I would like to put in custom scope particular instance of Configuration class from rest request. Main problem is that custom scope (JobScoped from JBeret h

Answer 1

Firstly I would like to thank you again Jan-Willem Gmelig Meyling because your answer was very helpful. Anyway, I wanted to use given scope by JBeret which is JobScoped, today it could be only used on TYPE level. I did similary workaround as Jan-Willem Gmelig Meyling suggested but:

• can use JobScoped
• don't have to import extra libraries, everything works within CDI

Solution:

1) Configuration class:

@JobScoped
public class Configuration
{...}

2) At JobListener magic happens. Additional comments are redundant.

Let's my code speak for itself ;)

import javax.batch.api.listener.AbstractJobListener;

public class MyJobListener extends AbstractJobListener{

    @Inject
    private Configuration jobScopedConfiguration;


    @Override
    public void beforeJob() throws Exception {
        enrichJobScopedConfigurationWithRequestConfiguration();
        ...
        super.beforeJob();
    }

    private void enrichJobScopedConfigurationWithRequestConfiguration(){
    Configuration requestConfiguration =
                (Configuration) BatchRuntime.getJobOperator().getJobExecution(currentExecutionId).getJobParameters()
                        .get("configuration");
        jobScopedConfiguration.updateWith(requestConfiguration);
    }

Now I can Inject my Configuration in any jberet/java batch artifact in context of job, e.g.:

public class MyReader implements ItemReader {

@Inject
private Configuration configFile;
}