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/*
* Copyright 2014 Open Networking Laboratory
*
* Licensed 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 under the License.
*/
package org.onosproject.store.flow.impl;
import com.google.common.base.Optional;
import com.google.common.collect.Maps;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.onosproject.cluster.NodeId;
import org.onosproject.cluster.RoleInfo;
import org.onosproject.common.event.impl.TestEventDispatcher;
import org.onosproject.event.ListenerRegistry;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipEvent.Type;
import org.onosproject.mastership.MastershipListener;
import org.onosproject.mastership.MastershipService;
import org.onosproject.mastership.MastershipServiceAdapter;
import org.onosproject.net.DeviceId;
import org.onosproject.store.flow.ReplicaInfo;
import org.onosproject.store.flow.ReplicaInfoEvent;
import org.onosproject.store.flow.ReplicaInfoEventListener;
import org.onosproject.store.flow.ReplicaInfoService;
import java.util.Collections;
import java.util.LinkedList;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class ReplicaInfoManagerTest {
private static final DeviceId DID1 = DeviceId.deviceId("of:1");
private static final DeviceId DID2 = DeviceId.deviceId("of:2");
private static final NodeId NID1 = new NodeId("foo");
private ReplicaInfoManager mgr;
private ReplicaInfoService service;
private ListenerRegistry<MastershipEvent, MastershipListener>
mastershipListenerRegistry;
private TestEventDispatcher eventDispatcher;
@Before
public void setUp() throws Exception {
mastershipListenerRegistry = new ListenerRegistry<>();
mgr = new ReplicaInfoManager();
service = mgr;
eventDispatcher = new TestEventDispatcher();
mgr.eventDispatcher = eventDispatcher;
mgr.mastershipService = new TestMastershipService();
// register dummy mastership event source
mgr.eventDispatcher.addSink(MastershipEvent.class, mastershipListenerRegistry);
mgr.activate();
}
@After
public void tearDown() throws Exception {
mgr.deactivate();
}
@Test
public void testGetReplicaInfoFor() {
ReplicaInfo info1 = service.getReplicaInfoFor(DID1);
assertEquals(Optional.of(NID1), info1.master());
// backups are always empty for now
assertEquals(Collections.emptyList(), info1.backups());
ReplicaInfo info2 = service.getReplicaInfoFor(DID2);
assertEquals("There's no master", Optional.absent(), info2.master());
// backups are always empty for now
assertEquals(Collections.emptyList(), info2.backups());
}
@Test
public void testReplicaInfoEvent() throws InterruptedException {
final CountDownLatch latch = new CountDownLatch(1);
service.addListener(new MasterNodeCheck(latch, DID1, NID1));
// fake MastershipEvent
eventDispatcher.post(new MastershipEvent(Type.MASTER_CHANGED, DID1,
new RoleInfo(NID1, new LinkedList<>())));
assertTrue(latch.await(1, TimeUnit.SECONDS));
}
private final class MasterNodeCheck implements ReplicaInfoEventListener {
private final CountDownLatch latch;
private Optional<NodeId> expectedMaster;
private DeviceId expectedDevice;
MasterNodeCheck(CountDownLatch latch, DeviceId did,
NodeId nid) {
this.latch = latch;
this.expectedMaster = Optional.fromNullable(nid);
this.expectedDevice = did;
}
@Override
public void event(ReplicaInfoEvent event) {
assertEquals(expectedDevice, event.subject());
assertEquals(expectedMaster, event.replicaInfo().master());
// backups are always empty for now
assertEquals(Collections.emptyList(), event.replicaInfo().backups());
latch.countDown();
}
}
private final class TestMastershipService
extends MastershipServiceAdapter
implements MastershipService {
private Map<DeviceId, NodeId> masters;
TestMastershipService() {
masters = Maps.newHashMap();
masters.put(DID1, NID1);
// DID2 has no master
}
@Override
public NodeId getMasterFor(DeviceId deviceId) {
return masters.get(deviceId);
}
@Override
public RoleInfo getNodesFor(DeviceId deviceId) {
return new RoleInfo(masters.get(deviceId), Collections.emptyList());
}
@Override
public void addListener(MastershipListener listener) {
mastershipListenerRegistry.addListener(listener);
}
@Override
public void removeListener(MastershipListener listener) {
mastershipListenerRegistry.removeListener(listener);
}
}
}
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