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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* 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
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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package org.apache.sling.discovery.impl.topology.announcement;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.util.List;
import java.util.UUID;
import javax.jcr.Session;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.apache.sling.commons.testing.jcr.RepositoryProvider;
import org.apache.sling.discovery.ClusterView;
import org.apache.sling.discovery.InstanceDescription;
import org.apache.sling.discovery.impl.Config;
import org.apache.sling.discovery.impl.common.DefaultClusterViewImpl;
import org.apache.sling.discovery.impl.common.DefaultInstanceDescriptionImpl;
import org.apache.sling.discovery.impl.setup.MockFactory;
import org.apache.sling.discovery.impl.setup.OSGiFactory;
import org.apache.sling.discovery.impl.topology.TopologyTestHelper;
import org.junit.Before;
import org.junit.Test;
public class TopologyAnnouncementRegistryTest {
private AnnouncementRegistryImpl registry;
private String slingId;
private ResourceResolverFactory resourceResolverFactory;
private Config config;
@Before
public void setup() throws Exception {
resourceResolverFactory = MockFactory
.mockResourceResolverFactory();
config = new Config() {
public long getHeartbeatTimeout() {
// 1s for fast tests
return 1;
};
};
slingId = UUID.randomUUID().toString();
Session l = RepositoryProvider.instance().getRepository()
.loginAdministrative(null);
try {
l.removeItem("/var");
l.save();
l.logout();
} catch (Exception e) {
l.refresh(false);
l.logout();
}
registry = (AnnouncementRegistryImpl) OSGiFactory.createITopologyAnnouncementRegistry(
resourceResolverFactory, config, slingId);
}
@Test
public void testRegisterUnregister() throws Exception {
try{
registry.registerAnnouncement(null);
fail("should complain");
} catch(IllegalArgumentException iae) {
// ok
}
try{
registry.unregisterAnnouncement(null);
fail("should complain");
} catch(IllegalArgumentException iae) {
// ok
}
try{
registry.unregisterAnnouncement("");
fail("should complain");
} catch(IllegalArgumentException iae) {
// ok
}
try{
new Announcement(null);
fail("should complain");
} catch(IllegalArgumentException iae) {
// ok
}
try{
new Announcement("");
fail("should complain");
} catch(IllegalArgumentException iae) {
// ok
}
Announcement ann = new Announcement(slingId);
assertFalse(ann.isValid());
assertFalse(registry.registerAnnouncement(ann)!=-1);
DefaultClusterViewImpl localCluster = new DefaultClusterViewImpl(UUID.randomUUID().toString());
ann.setLocalCluster(localCluster);
assertFalse(ann.isValid());
assertFalse(registry.registerAnnouncement(ann)!=-1);
try{
registry.listInstances(localCluster);
fail("doing getInstances() on an empty cluster should throw an illegalstateexception");
} catch(IllegalStateException ise) {
// ok
}
DefaultInstanceDescriptionImpl instance = TopologyTestHelper.createInstanceDescription(ann.getOwnerId(), true, localCluster);
assertEquals(instance.getSlingId(), ann.getOwnerId());
assertTrue(ann.isValid());
assertTrue(registry.registerAnnouncement(ann)!=-1);
assertEquals(1, registry.listInstances(localCluster).size());
registry.checkExpiredAnnouncements();
assertEquals(1, registry.listInstances(localCluster).size());
registry.unregisterAnnouncement(ann.getOwnerId());
assertEquals(0, registry.listInstances(localCluster).size());
assertTrue(ann.isValid());
assertTrue(registry.registerAnnouncement(ann)!=-1);
assertEquals(1, registry.listInstances(localCluster).size());
Thread.sleep(1500);
assertEquals(0, registry.listInstances(localCluster).size());
}
@Test
public void testLists() throws Exception {
try{
registry.listAnnouncementsInSameCluster(null);
fail("should complain");
} catch(IllegalArgumentException iae) {
// ok
}
try{
registry.listAnnouncementsInSameCluster(null);
fail("should complain");
} catch(IllegalArgumentException iae) {
// ok
}
assertEquals(0, registry.listLocalAnnouncements().size());
assertEquals(0, registry.listLocalIncomingAnnouncements().size());
DefaultClusterViewImpl localCluster = new DefaultClusterViewImpl(UUID.randomUUID().toString());
DefaultInstanceDescriptionImpl instance = TopologyTestHelper.createInstanceDescription(slingId, true, localCluster);
assertEquals(0, registry.listAnnouncementsInSameCluster(localCluster).size());
assertEquals(0, registry.listLocalAnnouncements().size());
assertEquals(0, registry.listLocalIncomingAnnouncements().size());
Announcement ann = new Announcement(slingId);
ann.setLocalCluster(localCluster);
ann.setInherited(true);
registry.registerAnnouncement(ann);
assertEquals(1, registry.listAnnouncementsInSameCluster(localCluster).size());
assertEquals(1, registry.listLocalAnnouncements().size());
assertEquals(0, registry.listLocalIncomingAnnouncements().size());
ann.setInherited(true);
assertEquals(0, registry.listLocalIncomingAnnouncements().size());
assertTrue(registry.hasActiveAnnouncement(slingId));
assertFalse(registry.hasActiveAnnouncement(UUID.randomUUID().toString()));
registry.unregisterAnnouncement(slingId);
assertEquals(0, registry.listAnnouncementsInSameCluster(localCluster).size());
assertEquals(0, registry.listLocalAnnouncements().size());
assertEquals(0, registry.listLocalIncomingAnnouncements().size());
assertFalse(registry.hasActiveAnnouncement(slingId));
assertFalse(registry.hasActiveAnnouncement(UUID.randomUUID().toString()));
ann.setInherited(false);
registry.registerAnnouncement(ann);
assertEquals(1, registry.listAnnouncementsInSameCluster(localCluster).size());
assertEquals(1, registry.listLocalAnnouncements().size());
assertEquals(1, registry.listLocalIncomingAnnouncements().size());
assertTrue(registry.hasActiveAnnouncement(slingId));
assertFalse(registry.hasActiveAnnouncement(UUID.randomUUID().toString()));
registry.unregisterAnnouncement(slingId);
assertEquals(0, registry.listAnnouncementsInSameCluster(localCluster).size());
assertEquals(0, registry.listLocalAnnouncements().size());
assertEquals(0, registry.listLocalIncomingAnnouncements().size());
assertFalse(registry.hasActiveAnnouncement(slingId));
assertFalse(registry.hasActiveAnnouncement(UUID.randomUUID().toString()));
assertEquals(1, ann.listInstances().size());
registry.addAllExcept(ann, localCluster, new AnnouncementFilter() {
public boolean accept(String receivingSlingId, Announcement announcement) {
assertNotNull(receivingSlingId);
assertNotNull(announcement);
return true;
}
});
assertEquals(1, ann.listInstances().size());
registry.registerAnnouncement(createAnnouncement(createCluster(3), 1, false));
assertEquals(1, registry.listAnnouncementsInSameCluster(localCluster).size());
assertEquals(3, registry.listInstances(localCluster).size());
registry.addAllExcept(ann, localCluster, new AnnouncementFilter() {
public boolean accept(String receivingSlingId, Announcement announcement) {
assertNotNull(receivingSlingId);
assertNotNull(announcement);
return true;
}
});
assertEquals(4, ann.listInstances().size());
registry.registerAnnouncement(ann);
assertEquals(2, registry.listAnnouncementsInSameCluster(localCluster).size());
}
private ClusterView createCluster(int numInstances) {
DefaultClusterViewImpl localCluster = new DefaultClusterViewImpl(UUID.randomUUID().toString());
for (int i = 0; i < numInstances; i++) {
DefaultInstanceDescriptionImpl instance = TopologyTestHelper.createInstanceDescription(UUID.randomUUID().toString(), (i==0 ? true : false), localCluster);
}
return localCluster;
}
private ClusterView createCluster(String... instanceIds) {
DefaultClusterViewImpl localCluster = new DefaultClusterViewImpl(UUID.randomUUID().toString());
for (int i = 0; i < instanceIds.length; i++) {
DefaultInstanceDescriptionImpl instance = TopologyTestHelper.createInstanceDescription(instanceIds[i], (i==0 ? true : false), localCluster);
}
return localCluster;
}
private Announcement createAnnouncement(ClusterView remoteCluster, int ownerIndex, boolean inherited) {
List<InstanceDescription> instances = remoteCluster.getInstances();
Announcement ann = new Announcement(instances.get(ownerIndex).getSlingId());
ann.setInherited(inherited);
ann.setLocalCluster(remoteCluster);
return ann;
}
@Test
public void testExpiry() throws InterruptedException, NoSuchFieldException {
ClusterView cluster1 = createCluster(4);
ClusterView cluster2 = createCluster(3);
ClusterView cluster3 = createCluster(5);
ClusterView myCluster = createCluster(slingId);
Announcement ann1 = createAnnouncement(cluster1, 0, true);
Announcement ann2 = createAnnouncement(cluster2, 1, true);
Announcement ann3 = createAnnouncement(cluster3, 1, false);
assertTrue(registry.registerAnnouncement(ann1)!=-1);
assertTrue(registry.registerAnnouncement(ann2)!=-1);
assertTrue(registry.registerAnnouncement(ann3)!=-1);
assertTrue(registry.hasActiveAnnouncement(cluster1.getInstances().get(0).getSlingId()));
assertTrue(registry.hasActiveAnnouncement(cluster2.getInstances().get(1).getSlingId()));
assertTrue(registry.hasActiveAnnouncement(cluster3.getInstances().get(1).getSlingId()));
assertEquals(3, registry.listAnnouncementsInSameCluster(myCluster).size());
assertEquals(3, registry.listLocalAnnouncements().size());
assertEquals(1, registry.listLocalIncomingAnnouncements().size());
{
Announcement testAnn = createAnnouncement(myCluster, 0, false);
assertEquals(1, testAnn.listInstances().size());
registry.addAllExcept(testAnn, myCluster, null);
assertEquals(13, testAnn.listInstances().size());
}
Thread.sleep(1500);
{
Announcement testAnn = createAnnouncement(myCluster, 0, false);
assertEquals(1, testAnn.listInstances().size());
registry.addAllExcept(testAnn, myCluster, null);
assertEquals(13, testAnn.listInstances().size());
}
assertTrue(registry.registerAnnouncement(ann3)!=-1);
{
Announcement testAnn = createAnnouncement(myCluster, 0, false);
assertEquals(1, testAnn.listInstances().size());
registry.addAllExcept(testAnn, myCluster, null);
assertEquals(13, testAnn.listInstances().size());
}
registry.checkExpiredAnnouncements();
assertEquals(1, registry.listAnnouncementsInSameCluster(myCluster).size());
assertEquals(1, registry.listLocalAnnouncements().size());
assertEquals(1, registry.listLocalIncomingAnnouncements().size());
assertFalse(registry.hasActiveAnnouncement(cluster1.getInstances().get(0).getSlingId()));
assertFalse(registry.hasActiveAnnouncement(cluster2.getInstances().get(1).getSlingId()));
assertTrue(registry.hasActiveAnnouncement(cluster3.getInstances().get(1).getSlingId()));
{
Announcement testAnn = createAnnouncement(myCluster, 0, false);
assertEquals(1, testAnn.listInstances().size());
registry.addAllExcept(testAnn, myCluster, null);
assertEquals(6, testAnn.listInstances().size());
}
}
@Test
public void testCluster() throws Exception {
ClusterView cluster1 = createCluster(2);
ClusterView cluster2 = createCluster(4);
ClusterView cluster3 = createCluster(7);
Announcement ann1 = createAnnouncement(cluster1, 1, true);
Announcement ann2 = createAnnouncement(cluster2, 2, true);
Announcement ann3 = createAnnouncement(cluster3, 3, false);
final String instance1 = UUID.randomUUID().toString();
final String instance2 = UUID.randomUUID().toString();
final String instance3 = UUID.randomUUID().toString();
ClusterView myCluster = createCluster(instance1, instance2, instance3);
AnnouncementRegistryImpl registry1 = (AnnouncementRegistryImpl) OSGiFactory.createITopologyAnnouncementRegistry(
resourceResolverFactory, config, instance1);
AnnouncementRegistryImpl registry2 = (AnnouncementRegistryImpl) OSGiFactory.createITopologyAnnouncementRegistry(
resourceResolverFactory, config, instance2);
AnnouncementRegistryImpl registry3 = (AnnouncementRegistryImpl) OSGiFactory.createITopologyAnnouncementRegistry(
resourceResolverFactory, config, instance3);
assertTrue(registry1.registerAnnouncement(ann1)!=-1);
assertTrue(registry2.registerAnnouncement(ann2)!=-1);
assertTrue(registry3.registerAnnouncement(ann3)!=-1);
assertTrue(registry1.hasActiveAnnouncement(cluster1.getInstances().get(1).getSlingId()));
assertTrue(registry2.hasActiveAnnouncement(cluster2.getInstances().get(2).getSlingId()));
assertTrue(registry3.hasActiveAnnouncement(cluster3.getInstances().get(3).getSlingId()));
assertEquals(3, registry1.listAnnouncementsInSameCluster(myCluster).size());
assertEquals(1, registry1.listLocalAnnouncements().size());
assertEquals(0, registry1.listLocalIncomingAnnouncements().size());
assertAnnouncements(registry1, myCluster, 4, 16);
assertEquals(3, registry2.listAnnouncementsInSameCluster(myCluster).size());
assertEquals(1, registry2.listLocalAnnouncements().size());
assertEquals(0, registry2.listLocalIncomingAnnouncements().size());
assertAnnouncements(registry2, myCluster, 4, 16);
assertEquals(3, registry3.listAnnouncementsInSameCluster(myCluster).size());
assertEquals(1, registry3.listLocalAnnouncements().size());
assertEquals(1, registry3.listLocalIncomingAnnouncements().size());
assertAnnouncements(registry3, myCluster, 4, 16);
myCluster = createCluster(instance1, instance2);
assertEquals(2, registry1.listAnnouncementsInSameCluster(myCluster).size());
assertEquals(1, registry1.listLocalAnnouncements().size());
assertEquals(0, registry1.listLocalIncomingAnnouncements().size());
assertAnnouncements(registry1, myCluster, 3, 8);
assertEquals(2, registry2.listAnnouncementsInSameCluster(myCluster).size());
assertEquals(1, registry2.listLocalAnnouncements().size());
assertEquals(0, registry2.listLocalIncomingAnnouncements().size());
assertAnnouncements(registry2, myCluster, 3, 8);
Thread.sleep(1500);
assertAnnouncements(registry1, myCluster, 3, 8);
assertAnnouncements(registry2, myCluster, 3, 8);
registry1.checkExpiredAnnouncements();
registry2.checkExpiredAnnouncements();
assertAnnouncements(registry1, myCluster, 1, 2);
assertAnnouncements(registry2, myCluster, 1, 2);
}
private void assertAnnouncements(AnnouncementRegistryImpl registry,
ClusterView myCluster, int expectedNumAnnouncements, int expectedNumInstances) {
Announcement ann = createAnnouncement(myCluster, 0, false);
registry.addAllExcept(ann, myCluster, null);
assertEquals(expectedNumInstances, ann.listInstances().size());
}
}