Examples with AssertingTopologyEventListener org.apache.sling.discovery.base.its.setup.mock.AssertingTopologyEventListener used on opensource projects

Example 1 with AssertingTopologyEventListener

use of org.apache.sling.discovery.base.its.setup.mock.AssertingTopologyEventListener in project sling by apache.

the class AbstractSingleInstanceTest method testBootstrap.

@Test
public void testBootstrap() throws Throwable {
    logger.info("testBootstrap: start");
    try {
        instance.getClusterViewService().getLocalClusterView();
        fail("should complain");
    } catch (UndefinedClusterViewException e) {
    // SLING-5030 : isolated mode is gone, replaced with exception
    // ok
    }
    // SLING-3750 : with delaying the init event, we now should NOT get any events
    // before we let the view establish (which happens via heartbeats below)
    AssertingTopologyEventListener ada = new AssertingTopologyEventListener();
    instance.bindTopologyEventListener(ada);
    assertEquals(0, ada.getEvents().size());
    assertEquals(0, ada.getUnexpectedCount());
    try {
        instance.getClusterViewService().getLocalClusterView();
        fail("should complain");
    } catch (UndefinedClusterViewException e) {
    // ok
    }
    ada.addExpected(Type.TOPOLOGY_INIT);
    instance.heartbeatsAndCheckView();
    Thread.sleep(1000);
    instance.heartbeatsAndCheckView();
    Thread.sleep(1000);
    logger.info("testBoostrap: dumping repo...");
    instance.dumpRepo();
    logger.info("testBoostrap: dumping listener...");
    ada.dump();
    assertEquals(0, ada.getUnexpectedCount());
    assertEquals(1, ada.getEvents().size());
    TopologyEvent initEvent = ada.getEvents().remove(0);
    assertNotNull(initEvent);
    assertNotNull(initEvent.getNewView());
    assertNotNull(initEvent.getNewView().getClusterViews());
    // after the view was established though, we expect it to be a normal
    // EstablishedInstanceDescription
    instance.assertEstablishedView();
    logger.info("testBootstrap: end");
}

Example 2 with AssertingTopologyEventListener

use of org.apache.sling.discovery.base.its.setup.mock.AssertingTopologyEventListener in project sling by apache.

the class AbstractTopologyEventTest method testDelayedInitEvent.

/**
     * Tests the fact that the INIT event is delayed until voting has succeeded
     * (which is the default with SLIGN-5030 and SLING-4959
     * @throws Throwable
     */
@Test
public void testDelayedInitEvent() throws Throwable {
    logger.info("testDelayedInitEvent: start");
    instance1 = newBuilder().setDebugName("firstInstanceA").newRepository("/var/discovery/impl/", true).setConnectorPingTimeout(3).setMinEventDelay(3).build();
    AssertingTopologyEventListener l1 = new AssertingTopologyEventListener("instance1.l1");
    l1.addExpected(Type.TOPOLOGY_INIT);
    instance1.bindTopologyEventListener(l1);
    logger.info("testDelayedInitEvent: instance1 created, no events expected yet. slingId=" + instance1.slingId);
    instance1.heartbeatsAndCheckView();
    Thread.sleep(1200);
    instance1.heartbeatsAndCheckView();
    Thread.sleep(1200);
    instance1.heartbeatsAndCheckView();
    Thread.sleep(1200);
    logger.info("testDelayedInitEvent: 2nd/3rd heartbeat sent - now expecting a TOPOLOGY_INIT");
    instance1.dumpRepo();
    // one event
    assertEquals(1, l1.getEvents().size());
    // the expected one
    assertEquals(0, l1.getRemainingExpectedCount());
    assertEquals(0, l1.getUnexpectedCount());
    logger.info("testDelayedInitEvent: creating instance2");
    instance2 = newBuilder().setDebugName("secondInstanceB").useRepositoryOf(instance1).setConnectorPingTimeout(20).setMinEventDelay(3).build();
    logger.info("testDelayedInitEvent: instance2 created with slingId=" + instance2.slingId);
    AssertingTopologyEventListener l2 = new AssertingTopologyEventListener("instance2.l2");
    instance2.bindTopologyEventListener(l2);
    logger.info("testDelayedInitEvent: listener instance2.l2 added - it should not get any events though");
    AssertingTopologyEventListener l1Two = new AssertingTopologyEventListener("instance1.l1Two");
    l1Two.addExpected(Type.TOPOLOGY_INIT);
    logger.info("testDelayedInitEvent: listener instance1.l1Two added - it expects an INIT now");
    instance1.bindTopologyEventListener(l1Two);
    // SLING-4755: async event sending requires some minimal wait time nowadays
    Thread.sleep(500);
    // just because instance2 is started doesn't kick off any events yet
    // since instance2 didn't send heartbeats yet
    // one event
    assertEquals(1, l1.getEvents().size());
    // the expected one
    assertEquals(0, l1.getRemainingExpectedCount());
    assertEquals(0, l1.getUnexpectedCount());
    assertEquals(0, l2.getEvents().size());
    assertEquals(0, l2.getUnexpectedCount());
    assertEquals(1, l1Two.getEvents().size());
    // the expected one
    assertEquals(0, l1Two.getRemainingExpectedCount());
    assertEquals(0, l1Two.getUnexpectedCount());
    // the second & third heartbeat though triggers the voting etc
    logger.info("testDelayedInitEvent: two more heartbeats should trigger events");
    l1.addExpected(Type.TOPOLOGY_CHANGING);
    l1Two.addExpected(Type.TOPOLOGY_CHANGING);
    Thread.sleep(500);
    l2.addExpected(Type.TOPOLOGY_INIT);
    instance1.heartbeatsAndCheckView();
    instance2.heartbeatsAndCheckView();
    Thread.sleep(500);
    instance1.heartbeatsAndCheckView();
    instance2.heartbeatsAndCheckView();
    Thread.sleep(500);
    instance1.heartbeatsAndCheckView();
    instance2.heartbeatsAndCheckView();
    logger.info("testDelayedInitEvent: instance1: " + instance1.slingId);
    logger.info("testDelayedInitEvent: instance2: " + instance2.slingId);
    instance1.dumpRepo();
    assertEquals(0, l1.getUnexpectedCount());
    assertEquals(2, l1.getEvents().size());
    assertEquals(0, l2.getUnexpectedCount());
    // with the switch to use the SyncTokenService in discovery.impl tests
    // by default, the following check is no longer possible:
    //        assertEquals(1, l2.getEvents().size());
    // (this is due to the fact that synching requires some more time
    // and we're a bit early at this stage - the below same check
    // is the only one that we can do here really - and that one must work)
    assertEquals(0, l1Two.getUnexpectedCount());
    assertEquals(2, l1Two.getEvents().size());
    // wait until CHANGED is sent - which is 3 sec after CHANGING
    l1.addExpected(Type.TOPOLOGY_CHANGED);
    l1Two.addExpected(Type.TOPOLOGY_CHANGED);
    Thread.sleep(4000);
    assertEquals(0, l1.getUnexpectedCount());
    // one event
    assertEquals(3, l1.getEvents().size());
    assertEquals(0, l2.getUnexpectedCount());
    assertEquals(1, l2.getEvents().size());
    assertEquals(0, l1Two.getUnexpectedCount());
    assertEquals(3, l1Two.getEvents().size());
    logger.info("testDelayedInitEvent: end");
}

Example 3 with AssertingTopologyEventListener

use of org.apache.sling.discovery.base.its.setup.mock.AssertingTopologyEventListener in project sling by apache.

the class AbstractTopologyEventTest method testGetDuringDelay.

@Test
public void testGetDuringDelay() throws Throwable {
    instance1 = newBuilder().setDebugName("firstInstanceA").newRepository("/var/discovery/impl/", true).setConnectorPingTimeout(20).setMinEventDelay(6).build();
    AssertingTopologyEventListener l1 = new AssertingTopologyEventListener("instance1.l1");
    l1.addExpected(TopologyEvent.Type.TOPOLOGY_INIT);
    instance1.bindTopologyEventListener(l1);
    TopologyView earlyTopo = instance1.getDiscoveryService().getTopology();
    assertNotNull(earlyTopo);
    assertFalse(earlyTopo.isCurrent());
    assertEquals(1, earlyTopo.getInstances().size());
    for (int i = 0; i < 4; i++) {
        instance1.heartbeatsAndCheckView();
        Thread.sleep(125);
    }
    TopologyView secondTopo = instance1.getDiscoveryService().getTopology();
    assertEquals(1, secondTopo.getInstances().size());
    assertEquals(instance1.getSlingId(), secondTopo.getInstances().iterator().next().getSlingId());
    assertTrue(secondTopo.isCurrent());
    instance1.dumpRepo();
    assertEarlyAndFirstClusterViewIdMatches(earlyTopo, secondTopo);
    Thread.sleep(500);
    // should have gotten the INIT, hence 0 remaining expected events
    assertEquals(0, l1.getRemainingExpectedCount());
    assertEquals(0, l1.getUnexpectedCount());
    l1.addExpected(TopologyEvent.Type.TOPOLOGY_CHANGING);
    instance2 = newBuilder().setDebugName("secondInstanceB").useRepositoryOf(instance1).setConnectorPingTimeout(20).setMinEventDelay(1).build();
    AssertingTopologyEventListener l2 = new AssertingTopologyEventListener("instance2.l1");
    l2.addExpected(TopologyEvent.Type.TOPOLOGY_INIT);
    instance2.bindTopologyEventListener(l2);
    for (int i = 0; i < 4; i++) {
        instance2.heartbeatsAndCheckView();
        instance1.heartbeatsAndCheckView();
        Thread.sleep(750);
    }
    assertEquals(0, l1.getUnexpectedCount());
    TopologyView topo2 = instance2.getDiscoveryService().getTopology();
    assertTrue(topo2.isCurrent());
    assertEquals(2, topo2.getInstances().size());
    TopologyView topo1 = instance1.getDiscoveryService().getTopology();
    assertTrue(topo1.isCurrent());
    assertEquals(2, topo1.getInstances().size());
    l1.addExpected(TopologyEvent.Type.TOPOLOGY_CHANGED);
    Thread.sleep(5000);
    assertEquals(0, l1.getRemainingExpectedCount());
    assertEquals(0, l1.getUnexpectedCount());
    assertEquals(0, l2.getRemainingExpectedCount());
    assertEquals(0, l2.getUnexpectedCount());
    assertTrue(instance2.getDiscoveryService().getTopology().isCurrent());
    assertEquals(2, instance2.getDiscoveryService().getTopology().getInstances().size());
    assertTrue(instance1.getDiscoveryService().getTopology().isCurrent());
    assertEquals(2, instance1.getDiscoveryService().getTopology().getInstances().size());
}

Example 4 with AssertingTopologyEventListener

use of org.apache.sling.discovery.base.its.setup.mock.AssertingTopologyEventListener in project sling by apache.

the class RepositoryDelaysTest method testOldView.

/**
     * Tests whether the not-current view returned by getTopology()
     * matches what listeners get in TOPOLOGY_CHANGING - it should
     * basically be the same.
     */
@Test
public void testOldView() throws Throwable {
    final org.apache.log4j.Logger discoveryLogger = RootLogger.getLogger("org.apache.sling.discovery");
    // info should do
    discoveryLogger.setLevel(Level.INFO);
    FullJR2VirtualInstanceBuilder builder = newBuilder();
    builder.setDebugName("firstInstanceA").newRepository("/var/discovery/impl/", true).setConnectorPingTimeout(3).setMinEventDelay(3);
    instance1 = builder.fullBuild();
    instance1.stopVoting();
    TopologyView t1 = instance1.getDiscoveryService().getTopology();
    // current it should not be
    assertFalse(t1.isCurrent());
    // but it can as well contain the local instance
    assertEquals(1, t1.getInstances().size());
    AssertingTopologyEventListener l1 = new AssertingTopologyEventListener("instance1.l1");
    l1.addExpected(Type.TOPOLOGY_INIT);
    instance1.bindTopologyEventListener(l1);
    logger.info("testOldView: instance1 created, no events expected yet. slingId=" + instance1.slingId);
    instance1.heartbeatsAndCheckView();
    Thread.sleep(200);
    instance1.heartbeatsAndCheckView();
    Thread.sleep(200);
    instance1.heartbeatsAndCheckView();
    Thread.sleep(200);
    logger.info("testOldView: 2nd/3rd heartbeat sent - now expecting a TOPOLOGY_INIT");
    instance1.dumpRepo();
    // one event
    assertEquals(1, l1.getEvents().size());
    // the expected one
    assertEquals(0, l1.getRemainingExpectedCount());
    assertEquals(0, l1.getUnexpectedCount());
    t1 = instance1.getDiscoveryService().getTopology();
    // current it should now be
    assertTrue(t1.isCurrent());
    // and it must contain the local instance
    assertEquals(1, t1.getInstances().size());
    logger.info("testOldView: creating instance2");
    l1.addExpected(Type.TOPOLOGY_CHANGING);
    FullJR2VirtualInstanceBuilder builder2 = newBuilder();
    builder2.setDebugName("secondInstanceB").useRepositoryOf(instance1).setConnectorPingTimeout(3).setMinEventDelay(3);
    instance2 = builder2.fullBuild();
    instance2.stopVoting();
    logger.info("testOldView: instance2 created, now issuing one heartbeat with instance2 first, so that instance1 can take note of it");
    instance2.heartbeatsAndCheckView();
    logger.info("testOldView: now instance1 is also doing a heartbeat and should see that a new instance is there");
    instance1.heartbeatsAndCheckView();
    logger.info("testOldView: 500ms sleep...");
    // allow some time for CHANGING to be sent
    Thread.sleep(500);
    logger.info("testOldView: 500ms sleep done.");
    // INIT and CHANGING
    assertEquals(2, l1.getEvents().size());
    // no remaining expected
    assertEquals(0, l1.getRemainingExpectedCount());
    // and no unexpected
    assertEquals(0, l1.getUnexpectedCount());
    t1 = instance1.getDiscoveryService().getTopology();
    // current it should not be
    assertFalse(t1.isCurrent());
    // but it should still contain the local instance from before
    assertEquals(1, t1.getInstances().size());
    l1.addExpected(Type.TOPOLOGY_CHANGED);
    logger.info("testOldView: now issuing 3 rounds of heartbeats/checks and expecting a TOPOLOGY_CHANGED then");
    instance2.heartbeatsAndCheckView();
    //        instance2.analyzeVotings();
    instance1.heartbeatsAndCheckView();
    //        instance1.analyzeVotings();
    Thread.sleep(1200);
    instance2.heartbeatsAndCheckView();
    instance1.heartbeatsAndCheckView();
    Thread.sleep(1200);
    instance2.heartbeatsAndCheckView();
    instance1.heartbeatsAndCheckView();
    Thread.sleep(1200);
    // INIT, CHANGING and CHANGED
    assertEquals(3, l1.getEvents().size());
    // no remaining expected
    assertEquals(0, l1.getRemainingExpectedCount());
    // and no unexpected
    assertEquals(0, l1.getUnexpectedCount());
    t1 = instance1.getDiscoveryService().getTopology();
    // and we should be current again
    assertTrue(t1.isCurrent());
    // and contain both instances now
    assertEquals(2, t1.getInstances().size());
    // timeout is set to 3sec, so we now do heartbeats for 4sec with only instance1
    // to let instance2 crash
    // force instance1 to no longer analyze the votings
    // since stopVoting() only deactivates the listener, we also
    // have to set votingHandler of heartbeatHandler to null
    PrivateAccessor.setField(instance1.getHeartbeatHandler(), "votingHandler", null);
    l1.addExpected(Type.TOPOLOGY_CHANGING);
    for (int i = 0; i < 8; i++) {
        instance1.getHeartbeatHandler().heartbeatAndCheckView();
        Thread.sleep(500);
    }
    // INIT, CHANGING, CHANGED and CHANGED
    assertEquals(4, l1.getEvents().size());
    // no remaining expected
    assertEquals(0, l1.getRemainingExpectedCount());
    // and no unexpected
    assertEquals(0, l1.getUnexpectedCount());
    t1 = instance1.getDiscoveryService().getTopology();
    // we should still be !current
    assertFalse(t1.isCurrent());
    // and contain both instances
    assertEquals(2, t1.getInstances().size());
}

Example 5 with AssertingTopologyEventListener

use of org.apache.sling.discovery.base.its.setup.mock.AssertingTopologyEventListener in project sling by apache.

the class OakDiscoveryServiceTest method testOldView.

/**
     * Tests whether the not-current view returned by getTopology()
     * matches what listeners get in TOPOLOGY_CHANGING - it should
     * basically be the same.
     */
@Test
public void testOldView() throws Throwable {
    final org.apache.log4j.Logger discoveryLogger = RootLogger.getLogger("org.apache.sling.discovery");
    // info should do
    discoveryLogger.setLevel(Level.INFO);
    OakVirtualInstanceBuilder builder = newBuilder();
    builder.setDebugName("firstInstanceA").newRepository("/var/discovery/oak/", true).setConnectorPingTimeout(3).setMinEventDelay(3);
    instance1 = builder.build();
    instance1.stopViewChecker();
    //        instance1.stopVoting();
    TopologyView t1 = instance1.getDiscoveryService().getTopology();
    // current it should not be
    assertFalse(t1.isCurrent());
    // but it can as well contain the local instance
    assertEquals(1, t1.getInstances().size());
    AssertingTopologyEventListener l1 = new AssertingTopologyEventListener("instance1.l1");
    l1.addExpected(Type.TOPOLOGY_INIT);
    instance1.bindTopologyEventListener(l1);
    logger.info("testOldView: instance1 created, no events expected yet. slingId=" + instance1.slingId);
    instance1.heartbeatsAndCheckView();
    Thread.sleep(200);
    instance1.heartbeatsAndCheckView();
    Thread.sleep(200);
    instance1.heartbeatsAndCheckView();
    Thread.sleep(200);
    logger.info("testOldView: 2nd/3rd heartbeat sent - now expecting a TOPOLOGY_INIT");
    instance1.dumpRepo();
    // one event
    assertEquals(1, l1.getEvents().size());
    // the expected one
    assertEquals(0, l1.getRemainingExpectedCount());
    assertEquals(0, l1.getUnexpectedCount());
    t1 = instance1.getDiscoveryService().getTopology();
    // current it should now be
    assertTrue(t1.isCurrent());
    // and it must contain the local instance
    assertEquals(1, t1.getInstances().size());
    logger.info("testOldView: creating instance2");
    builder.getSimulatedLeaseCollection().setFinal(false);
    l1.addExpected(Type.TOPOLOGY_CHANGING);
    VirtualInstanceBuilder builder2 = newBuilder();
    builder2.setDebugName("secondInstanceB").useRepositoryOf(instance1).setConnectorPingTimeout(3).setMinEventDelay(3);
    instance2 = builder2.build();
    instance2.stopViewChecker();
    //        instance2.stopVoting();
    logger.info("testOldView: instance2 created, now issuing one heartbeat with instance2 first, so that instance1 can take note of it");
    instance2.getViewChecker().checkView();
    OakDiscoveryService oakDisco1 = (OakDiscoveryService) instance2.getDiscoveryService();
    oakDisco1.checkForTopologyChange();
    logger.info("testOldView: now instance1 is also doing a heartbeat and should see that a new instance is there");
    instance1.getViewChecker().checkView();
    OakDiscoveryService oakDisco2 = (OakDiscoveryService) instance1.getDiscoveryService();
    oakDisco2.checkForTopologyChange();
    logger.info("testOldView: 500ms sleep...");
    // allow some time for CHANGING to be sent
    Thread.sleep(500);
    logger.info("testOldView: 500ms sleep done.");
    // INIT and CHANGING
    assertEquals(2, l1.getEvents().size());
    // no remaining expected
    assertEquals(0, l1.getRemainingExpectedCount());
    // and no unexpected
    assertEquals(0, l1.getUnexpectedCount());
    t1 = instance1.getDiscoveryService().getTopology();
    // current it should not be
    assertFalse(t1.isCurrent());
    // but it should still contain the local instance from before
    assertEquals(1, t1.getInstances().size());
    builder.getSimulatedLeaseCollection().setFinal(true);
    l1.addExpected(Type.TOPOLOGY_CHANGED);
    logger.info("testOldView: now issuing 3 rounds of heartbeats/checks and expecting a TOPOLOGY_CHANGED then");
    instance2.heartbeatsAndCheckView();
    //        instance2.analyzeVotings();
    instance1.heartbeatsAndCheckView();
    //        instance1.analyzeVotings();
    Thread.sleep(1200);
    instance2.heartbeatsAndCheckView();
    instance1.heartbeatsAndCheckView();
    Thread.sleep(1200);
    instance2.heartbeatsAndCheckView();
    instance1.heartbeatsAndCheckView();
    Thread.sleep(1200);
    // INIT, CHANGING and CHANGED
    assertEquals(3, l1.getEvents().size());
    // no remaining expected
    assertEquals(0, l1.getRemainingExpectedCount());
    // and no unexpected
    assertEquals(0, l1.getUnexpectedCount());
    t1 = instance1.getDiscoveryService().getTopology();
    // and we should be current again
    assertTrue(t1.isCurrent());
    // and contain both instances now
    assertEquals(2, t1.getInstances().size());
    // timeout is set to 3sec, so we now do heartbeats for 4sec with only instance1
    // to let instance2 crash
    builder.getSimulatedLeaseCollection().setFinal(false);
    l1.addExpected(Type.TOPOLOGY_CHANGING);
    for (int i = 0; i < 8; i++) {
        instance1.heartbeatsAndCheckView();
        Thread.sleep(500);
    }
    // INIT, CHANGING, CHANGED and CHANGING
    assertEquals(4, l1.getEvents().size());
    // no remaining expected
    assertEquals(0, l1.getRemainingExpectedCount());
    // and no unexpected
    assertEquals(0, l1.getUnexpectedCount());
    t1 = instance1.getDiscoveryService().getTopology();
    // and we should be current again
    assertFalse(t1.isCurrent());
    // and contain both instances now
    assertEquals(2, t1.getInstances().size());
}