Examples with StabilityPredicate com.oracle.bedrock.runtime.options.StabilityPredicate used on opensource projects

Example 1 with StabilityPredicate

use of com.oracle.bedrock.runtime.options.StabilityPredicate in project oracle-bedrock by coherence-community.

the class AbstractCoherenceClusterBuilderTest method shouldPerformRollingRestartOfCluster.

/**
 * Ensure we perform a rolling restart of a {@link CoherenceCluster}
 */
@Test
public void shouldPerformRollingRestartOfCluster() {
    final int CLUSTER_SIZE = 4;
    AvailablePortIterator availablePorts = LocalPlatform.get().getAvailablePorts();
    ClusterPort clusterPort = ClusterPort.of(new Capture<>(availablePorts));
    String clusterName = "Rolling" + getClass().getSimpleName();
    Platform platform = getPlatform();
    CoherenceClusterBuilder builder = new CoherenceClusterBuilder();
    builder.include(CLUSTER_SIZE, CoherenceClusterMember.class, DisplayName.of("DCS"), clusterPort, ClusterName.of(clusterName), LocalHost.only(), Console.system());
    try (CoherenceCluster cluster = builder.build(getPlatform())) {
        assertThat(invoking(cluster).getClusterSize(), is(CLUSTER_SIZE));
        StabilityPredicate<CoherenceCluster> predicate = StabilityPredicate.of(CoherenceCluster.Predicates.autoStartServicesSafe());
        cluster.filter(member -> member.isServiceRunning("ProxyService")).relaunch();
        cluster.unordered().limit(2).relaunch(predicate);
        assertThat(invoking(cluster).getClusterSize(), is(CLUSTER_SIZE));
        cluster.unordered().limit(2).relaunch(predicate);
        assertThat(invoking(cluster).getClusterSize(), is(CLUSTER_SIZE));
        cluster.unordered().limit(2).relaunch(predicate);
        assertThat(invoking(cluster).getClusterSize(), is(CLUSTER_SIZE));
        // introduce a new system property for the relaunched members
        cluster.relaunch(predicate, SystemProperty.of("cloned", "yes"));
        assertThat(invoking(cluster).getClusterSize(), is(CLUSTER_SIZE));
        // ensure all the members have the new system property
        for (CoherenceClusterMember member : cluster) {
            assertThat(member.getSystemProperty("cloned"), is("yes"));
        }
    }
}