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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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package org.apache.sling.discovery.impl.topology;
import static org.junit.Assert.assertEquals;
import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import org.apache.sling.discovery.InstanceDescription;
import org.apache.sling.discovery.impl.setup.Instance;
import org.apache.sling.discovery.impl.topology.announcement.Announcement;
import org.junit.After;
import org.junit.Test;
public class TopologyTest {
private final List<Instance> instances = new LinkedList<Instance>();
@After
public void tearDown() throws Exception {
for (Iterator<Instance> it = instances.iterator(); it.hasNext();) {
final Instance instance = it.next();
instance.stop();
}
}
@Test
public void testTwoNodes() throws Throwable {
Instance instance1 = TopologyTestHelper.createInstance(instances, "instance1");
Instance instance2 = TopologyTestHelper.createInstance(instances, "instance2");
instance1.getConfig().setHeartbeatTimeout(2);
instance1.getConfig().setHeartbeatInterval(1);
instance2.getConfig().setHeartbeatTimeout(1);
instance2.getConfig().setHeartbeatInterval(1);
Set<InstanceDescription> instances1 = instance1.getDiscoveryService().getTopology().getInstances();
Set<InstanceDescription> instances2 = instance2.getDiscoveryService().getTopology().getInstances();
assertEquals(1, instances1.size());
assertEquals(1, instances2.size());
assertEquals(instance1.getSlingId(), instances1.iterator().next().getSlingId());
assertEquals(instance2.getSlingId(), instances2.iterator().next().getSlingId());
new Connector(instance1, instance2);
// check instance 1's announcements
Collection<Announcement> instance1LocalAnnouncements =
instance1.getAnnouncementRegistry().listLocalAnnouncements();
assertEquals(1, instance1LocalAnnouncements.size());
Announcement instance1LocalAnnouncement = instance1LocalAnnouncements.iterator().next();
assertEquals(instance2.getSlingId(), instance1LocalAnnouncement.getOwnerId());
assertEquals(true, instance1LocalAnnouncement.isInherited());
// check instance 2's announcements
Collection<Announcement> instance2LocalAnnouncements =
instance2.getAnnouncementRegistry().listLocalAnnouncements();
assertEquals(1, instance2LocalAnnouncements.size());
Announcement instance2LocalAnnouncement = instance2LocalAnnouncements.iterator().next();
assertEquals(instance1.getSlingId(), instance2LocalAnnouncement.getOwnerId());
assertEquals(false, instance2LocalAnnouncement.isInherited());
// check topology
TopologyTestHelper.assertTopologyConsistsOf(instance1.getDiscoveryService().getTopology(), instance1.getSlingId(), instance2.getSlingId());
TopologyTestHelper.assertTopologyConsistsOf(instance2.getDiscoveryService().getTopology(), instance1.getSlingId(), instance2.getSlingId());
instance1LocalAnnouncements =
instance1.getAnnouncementRegistry().listLocalAnnouncements();
assertEquals(1, instance1LocalAnnouncements.size());
instance2LocalAnnouncements =
instance2.getAnnouncementRegistry().listLocalAnnouncements();
assertEquals(1, instance2LocalAnnouncements.size());
Thread.sleep(1500);
instance1LocalAnnouncements =
instance1.getAnnouncementRegistry().listLocalAnnouncements();
assertEquals(1, instance1LocalAnnouncements.size());
instance2LocalAnnouncements =
instance2.getAnnouncementRegistry().listLocalAnnouncements();
assertEquals(0, instance2LocalAnnouncements.size());
TopologyTestHelper.assertTopologyConsistsOf(instance1.getDiscoveryService().getTopology(), instance1.getSlingId(), instance2.getSlingId());
TopologyTestHelper.assertTopologyConsistsOf(instance2.getDiscoveryService().getTopology(), instance2.getSlingId());
Thread.sleep(1000);
instance1LocalAnnouncements =
instance1.getAnnouncementRegistry().listLocalAnnouncements();
assertEquals(0, instance1LocalAnnouncements.size());
instance2LocalAnnouncements =
instance2.getAnnouncementRegistry().listLocalAnnouncements();
assertEquals(0, instance2LocalAnnouncements.size());
TopologyTestHelper.assertTopologyConsistsOf(instance1.getDiscoveryService().getTopology(), instance1.getSlingId());
TopologyTestHelper.assertTopologyConsistsOf(instance2.getDiscoveryService().getTopology(), instance2.getSlingId());
}
}