Package org.wildfly.clustering.singleton.election

Examples of org.wildfly.clustering.singleton.election.PreferredSingletonElectionPolicy

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        InjectedValue<ServerEnvironment> env = new InjectedValue<>();
        HATimerService service = new HATimerService(env);
        ServiceController<?> factoryService = context.getServiceRegistry().getRequiredService(SingletonServiceBuilderFactory.SERVICE_NAME.append(CONTAINER_NAME, CACHE_NAME));
        SingletonServiceBuilderFactory factory = (SingletonServiceBuilderFactory) factoryService.getValue();
        factory.createSingletonServiceBuilder(name, service)
            .electionPolicy(new PreferredSingletonElectionPolicy(new SimpleSingletonElectionPolicy(), new NamePreference(PREFERRED_NODE + "/" + CONTAINER_NAME)))
            .requireQuorum(quorum)
            .build(context.getServiceTarget())
                .addDependency(ServerEnvironmentService.SERVICE_NAME, ServerEnvironment.class, env)
                .setInitialMode(ServiceController.Mode.ACTIVE)
                .install()
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        InjectedValue<ServerEnvironment> env = new InjectedValue<>();
        MyService service = new MyService(env);
        ServiceController<?> factoryService = context.getServiceRegistry().getRequiredService(SingletonServiceBuilderFactory.SERVICE_NAME.append(CONTAINER_NAME, CACHE_NAME));
        SingletonServiceBuilderFactory factory = (SingletonServiceBuilderFactory) factoryService.getValue();
        factory.createSingletonServiceBuilder(name, service)
            .electionPolicy(new PreferredSingletonElectionPolicy(new SimpleSingletonElectionPolicy(), new NamePreference(PREFERRED_NODE)))
            .requireQuorum(quorum)
            .build(context.getServiceTarget())
                .addDependency(ServerEnvironmentService.SERVICE_NAME, ServerEnvironment.class, env)
                .setInitialMode(ServiceController.Mode.ACTIVE)
                .install()
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        when(preference2.preferred(same(node1))).thenReturn(false);
        when(preference2.preferred(same(node2))).thenReturn(true);
        when(preference2.preferred(same(node3))).thenReturn(false);
        when(preference2.preferred(same(node4))).thenReturn(false);

        assertSame(node1, new PreferredSingletonElectionPolicy(policy, preference1, preference2).elect(Arrays.asList(node1, node2, node3, node4)));
        assertSame(node1, new PreferredSingletonElectionPolicy(policy, preference1, preference2).elect(Arrays.asList(node4, node3, node2, node1)));
        assertSame(node2, new PreferredSingletonElectionPolicy(policy, preference1, preference2).elect(Arrays.asList(node2, node3, node4)));
        assertSame(node2, new PreferredSingletonElectionPolicy(policy, preference1, preference2).elect(Arrays.asList(node4, node3, node2)));

        List<Node> nodes = Arrays.asList(node3, node4);
        when(policy.elect(nodes)).thenReturn(node3);

        assertSame(node3, new PreferredSingletonElectionPolicy(policy, preference1, preference2).elect(nodes));

        when(policy.elect(nodes)).thenReturn(node4);

        assertSame(node4, new PreferredSingletonElectionPolicy(policy, preference1, preference2).elect(nodes));

        when(policy.elect(nodes)).thenReturn(null);

        assertNull(new PreferredSingletonElectionPolicy(policy, preference1, preference2).elect(nodes));
    }
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Related Classes of org.wildfly.clustering.singleton.election.PreferredSingletonElectionPolicy

  • org.jboss.as.quickstarts.cluster.hasingleton.service.ejb.HATimerServiceActivator
  • org.jboss.as.test.clustering.cluster.singleton.service.MyServiceActivator
  • org.wildfly.clustering.server.singleton.election.PreferredSingletonElectionPolicyTestCase
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