Distributed James Server — extensions.properties

This files enables an operator to define additional bindings used to instantiate others extensions

guice.extension.module: come separated list of fully qualified class name. These classes need to implement Guice modules.

Here is an example of such a class :

public class MyServiceModule extends AbstractModule {
    @Override
    protected void configure() {
        bind(MyServiceImpl.class).in(Scopes.SINGLETON);
        bind(MyService.class).to(MyServiceImpl.class);
    }
}

Recording it in extensions.properties :

guice.extension.module=com.project.MyServiceModule

Enables to inject MyService into your extensions.

guice.extension.tasks: come separated list of fully qualified class name.

The extension can rely on the Task manager to supervise long-running task execution (progress, await, cancellation, scheduling…). These extensions need to implement Task extension modules.

Here is an example of such a class :

public class RspamdTaskExtensionModule implements TaskExtensionModule {

    @Inject
    public RspamdTaskExtensionModule() {
    }

    @Override
    public Set<TaskDTOModule<? extends Task, ? extends TaskDTO>> taskDTOModules() {
        return Set.of(...);
    }

    @Override
    public Set<AdditionalInformationDTOModule<? extends TaskExecutionDetails.AdditionalInformation, ? extends AdditionalInformationDTO>> taskAdditionalInformationDTOModules() {
        return Set.of(...);
    }
}

Recording it in extensions.properties :

guice.extension.tasks=com.project.RspamdTaskExtensionModule

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