Examples with Singleton org.wildfly.clustering.singleton.Singleton used on opensource projects

Example 1 with Singleton

use of org.wildfly.clustering.singleton.Singleton in project wildfly by wildfly.

the class SingletonMetricExecutor method execute.

@Override
public ModelNode execute(OperationContext context, Metric<Singleton> metric) throws OperationFailedException {
    ServiceName name = this.serviceNameFactory.apply(context.getCurrentAddressValue());
    FunctionExecutor<Singleton> executor = this.executors.get(name.append("singleton"));
    return ((executor != null) ? executor : new LegacySingletonFunctionExecutor(context, name)).execute(new MetricFunction<>(Function.identity(), metric));
}

Example 2 with Singleton

use of org.wildfly.clustering.singleton.Singleton in project quickstart by wildfly.

the class QueryingService method start.

@Override
public void start(StartContext context) {
    Singleton singleton = this.singleton.get();
    this.executor = Executors.newSingleThreadScheduledExecutor();
    this.executor.scheduleAtFixedRate(() -> {
        Node primary = singleton.getPrimaryProvider();
        if (primary != null) {
            this.log.infof("Singleton service running on %s.", primary);
        } else {
            this.log.infof("Singleton service not running anywhere.");
        }
    }, 5, 5, TimeUnit.SECONDS);
    this.log.info("Querying service started");
}

Example 3 with Singleton

use of org.wildfly.clustering.singleton.Singleton in project wildfly by wildfly.

the class SingletonPolicyResourceDefinition method register.

@Override
public ManagementResourceRegistration register(ManagementResourceRegistration parent) {
    ManagementResourceRegistration registration = parent.registerSubModel(this);
    ResourceDescriptor descriptor = new ResourceDescriptor(this.getResourceDescriptionResolver()).addAttributes(Attribute.class).addCapabilities(Capability.class).addRequiredSingletonChildren(SimpleElectionPolicyResourceDefinition.PATH).setResourceTransformation(SingletonPolicyResource::new);
    ServiceValueExecutorRegistry<Singleton> executors = new ServiceValueExecutorRegistry<>();
    ResourceServiceHandler handler = new SingletonPolicyServiceHandler(executors);
    new SimpleResourceRegistration(descriptor, handler).register(registration);
    new RandomElectionPolicyResourceDefinition().register(registration);
    new SimpleElectionPolicyResourceDefinition().register(registration);
    if (registration.isRuntimeOnlyRegistrationValid()) {
        new SingletonDeploymentResourceDefinition(executors).register(registration);
        new SingletonServiceResourceDefinition(executors).register(registration);
    }
    return registration;
}

Example 4 with Singleton

use of org.wildfly.clustering.singleton.Singleton in project wildfly by wildfly.

the class DistributedSingletonServiceConfigurator method build.

@Override
public SingletonServiceBuilder<?> build(ServiceTarget target) {
    ServiceName name = this.getServiceName().append("singleton");
    ServiceBuilder<?> builder = new AsyncServiceConfigurator(name).build(target);
    Consumer<Singleton> singleton = builder.provides(name);
    return new DistributedSingletonServiceBuilder<>(this, new CompositeDependency(this.registry, this.dispatcherFactory).register(builder), singleton);
}