Examples with ViewStateManagerImpl org.apache.sling.discovery.commons.providers.base.ViewStateManagerImpl used on opensource projects

Example 1 with ViewStateManagerImpl

use of org.apache.sling.discovery.commons.providers.base.ViewStateManagerImpl in project sling by apache.

the class ClusterTest method newMgr.

private ViewStateManagerImpl newMgr() {
    ViewStateManagerImpl mgr = new ViewStateManagerImpl(new ReentrantLock(), new ClusterSyncService() {

        public void sync(BaseTopologyView view, Runnable callback) {
            callback.run();
        }

        @Override
        public void cancelSync() {
        // nothing to cancel, we're auto-run
        }
    });
    mgrList.add(mgr);
    return mgr;
}

Example 2 with ViewStateManagerImpl

use of org.apache.sling.discovery.commons.providers.base.ViewStateManagerImpl in project sling by apache.

the class ClusterTest method testTwoNodes.

@Test
public void testTwoNodes() throws Exception {
    final ViewStateManagerImpl mgr1 = newMgr();
    final String slingId1 = UUID.randomUUID().toString();
    final ViewStateManagerImpl mgr2 = newMgr();
    final String slingId2 = UUID.randomUUID().toString();
    // bind l1
    DummyListener l1 = new DummyListener();
    mgr1.bind(l1);
    assertCountEvents(mgr1, l1);
    // bind l2
    DummyListener l2 = new DummyListener();
    mgr2.bind(l2);
    assertCountEvents(mgr2, l2);
    // fiddle with l1 - without any events expected to be sent
    mgr1.handleChanging();
    assertCountEvents(mgr1, l1);
    mgr1.handleActivated();
    assertCountEvents(mgr1, l1);
    mgr1.handleChanging();
    assertCountEvents(mgr1, l1);
    // fiddle with l2 - without any events expected to be sent
    mgr2.handleChanging();
    assertCountEvents(mgr2, l2);
    mgr2.handleActivated();
    assertCountEvents(mgr2, l2);
    mgr2.handleChanging();
    assertCountEvents(mgr2, l2);
    // call handleNewView with not-current views first...
    BaseTopologyView vA1 = TestHelper.newView(false, slingId1, slingId1, slingId1, slingId2);
    mgr1.handleNewView(vA1);
    assertCountEvents(mgr1, l1);
    assertCountEvents(mgr2, l2);
    BaseTopologyView vB1 = TestHelper.newView(false, slingId1, slingId2, slingId1, slingId2);
    mgr2.handleNewView(vB1);
    assertCountEvents(mgr1, l1);
    assertCountEvents(mgr2, l2);
    // then call handleNewView with a current view - that should now sent the INIT
    BaseTopologyView vA2 = TestHelper.newView(true, slingId1, slingId1, slingId1, slingId2);
    mgr1.handleNewView(vA2);
    assertCountEvents(mgr1, l1, Type.TOPOLOGY_INIT);
    assertCountEvents(mgr2, l2);
    BaseTopologyView vB2 = TestHelper.newView(true, slingId1, slingId2, slingId1, slingId2);
    mgr2.handleNewView(vB2);
    assertCountEvents(mgr1, l1, Type.TOPOLOGY_INIT);
    assertCountEvents(mgr2, l2, Type.TOPOLOGY_INIT);
    // now let instance1 get decoupled from the cluster (pseudo-network-partitioning)
    BaseTopologyView vB3 = TestHelper.newView(true, slingId2, slingId2, slingId2);
    mgr2.handleNewView(vB3);
    assertCountEvents(mgr1, l1, Type.TOPOLOGY_INIT);
    assertCountEvents(mgr2, l2, Type.TOPOLOGY_INIT, Type.TOPOLOGY_CHANGING, Type.TOPOLOGY_CHANGED);
    // now let instance1 take note of this decoupling
    mgr1.handleChanging();
    assertCountEvents(mgr1, l1, Type.TOPOLOGY_INIT, Type.TOPOLOGY_CHANGING);
    assertCountEvents(mgr2, l2, Type.TOPOLOGY_INIT, Type.TOPOLOGY_CHANGING, Type.TOPOLOGY_CHANGED);
    // and now let instance1 rejoin
    BaseTopologyView vA4 = TestHelper.newView(true, slingId2, slingId1, slingId1, slingId2);
    mgr1.handleNewView(vA4);
    assertCountEvents(mgr1, l1, Type.TOPOLOGY_INIT, Type.TOPOLOGY_CHANGING, Type.TOPOLOGY_CHANGED);
    assertCountEvents(mgr2, l2, Type.TOPOLOGY_INIT, Type.TOPOLOGY_CHANGING, Type.TOPOLOGY_CHANGED);
    BaseTopologyView vB4 = TestHelper.newView(true, slingId2, slingId2, slingId1, slingId2);
    mgr2.handleNewView(vA4);
    assertCountEvents(mgr1, l1, Type.TOPOLOGY_INIT, Type.TOPOLOGY_CHANGING, Type.TOPOLOGY_CHANGED);
    assertCountEvents(mgr2, l2, Type.TOPOLOGY_INIT, Type.TOPOLOGY_CHANGING, Type.TOPOLOGY_CHANGED, Type.TOPOLOGY_CHANGING, Type.TOPOLOGY_CHANGED);
}

Example 3 with ViewStateManagerImpl

use of org.apache.sling.discovery.commons.providers.base.ViewStateManagerImpl in project sling by apache.

the class ClusterTest method setup.

@Before
public void setup() throws Exception {
    mgrList = new LinkedList<ViewStateManagerImpl>();
    // I want randomness yes, but deterministic, for some methods at least
    defaultRandom = new Random(1234123412);
}

Example 4 with ViewStateManagerImpl

use of org.apache.sling.discovery.commons.providers.base.ViewStateManagerImpl in project sling by apache.

the class TestMinEventDelayHandler method setup.

@Before
public void setup() throws Exception {
    mgr = new ViewStateManagerImpl(new ReentrantLock(), new ClusterSyncService() {

        @Override
        public void sync(BaseTopologyView view, Runnable callback) {
            callback.run();
        }

        @Override
        public void cancelSync() {
        // nothing to cancel, we're auto-run
        }
    });
    // I want randomness yes, but deterministic, for some methods at least
    defaultRandom = new Random(1234123412);
    scheduler = new DummyScheduler();
    sds = new DummyDiscoveryService();
    mgr.installMinEventDelayHandler(sds, scheduler, 1);
    final org.apache.log4j.Logger discoveryLogger = RootLogger.getLogger("org.apache.sling.discovery");
    logLevel = discoveryLogger.getLevel();
    // changed from Level.DEBUG
    discoveryLogger.setLevel(Level.INFO);
}