Add atomic mastership/term/backups method to MastershipService

Change-Id: I18c3aeaa5101c9ce08ff38fffd70eaec903a0f3e
This commit is contained in:
Jordan Halterman 2018-06-13 17:24:58 -07:00 committed by Ray Milkey
parent aeea0bbc30
commit 0a2bd45ad2
20 changed files with 531 additions and 161 deletions

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@ -17,6 +17,7 @@
package org.onosproject.faultmanagement.impl;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import org.junit.Before;
import org.junit.Test;
@ -25,7 +26,6 @@ import org.onlab.packet.ChassisId;
import org.onosproject.cfg.ComponentConfigAdapter;
import org.onosproject.cfg.ComponentConfigService;
import org.onosproject.cluster.NodeId;
import org.onosproject.cluster.RoleInfo;
import org.onosproject.incubator.net.faultmanagement.alarm.Alarm;
import org.onosproject.incubator.net.faultmanagement.alarm.AlarmConsumer;
import org.onosproject.incubator.net.faultmanagement.alarm.AlarmId;
@ -35,6 +35,7 @@ import org.onosproject.incubator.net.faultmanagement.alarm.AlarmProviderRegistry
import org.onosproject.incubator.net.faultmanagement.alarm.AlarmProviderService;
import org.onosproject.incubator.net.faultmanagement.alarm.DefaultAlarm;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipListener;
import org.onosproject.mastership.MastershipService;
import org.onosproject.mastership.MastershipServiceAdapter;
@ -64,6 +65,7 @@ import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import static org.junit.Assert.*;
@ -96,7 +98,7 @@ public class PollingAlarmProviderTest {
private final MastershipEvent mastershipEvent =
new MastershipEvent(MastershipEvent.Type.MASTER_CHANGED, DEVICE_ID,
new RoleInfo(nodeId, ImmutableList.of()));
new MastershipInfo(1, Optional.of(nodeId), ImmutableMap.of()));
private final DeviceEvent deviceEvent =
new DeviceEvent(DeviceEvent.Type.DEVICE_AVAILABILITY_CHANGED, device);

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@ -29,9 +29,6 @@ import java.util.Objects;
*/
public class MastershipEvent extends AbstractEvent<MastershipEvent.Type, DeviceId> {
//Contains master and standby information.
RoleInfo roleInfo;
/**
* Type of mastership events.
*/
@ -55,45 +52,58 @@ public class MastershipEvent extends AbstractEvent<MastershipEvent.Type, DeviceI
SUSPENDED
}
private final MastershipInfo mastershipInfo;
/**
* Creates an event of a given type and for the specified device,
* role information, and the current time.
*
* @param type mastership event type
* @param device event device subject
* @param info mastership role information
* @param type mastership event type
* @param device event device subject
* @param mastershipInfo mastership info
*/
public MastershipEvent(Type type, DeviceId device, RoleInfo info) {
public MastershipEvent(Type type, DeviceId device, MastershipInfo mastershipInfo) {
super(type, device);
this.roleInfo = info;
this.mastershipInfo = mastershipInfo;
}
/**
* Creates an event of a given type and for the specified device, master,
* and time.
*
* @param type mastership event type
* @param device event device subject
* @param info role information
* @param time occurrence time
* @param type mastership event type
* @param device event device subject
* @param mastershipInfo mastership information
* @param time occurrence time
*/
public MastershipEvent(Type type, DeviceId device, RoleInfo info, long time) {
public MastershipEvent(Type type, DeviceId device, MastershipInfo mastershipInfo, long time) {
super(type, device, time);
this.roleInfo = info;
this.mastershipInfo = mastershipInfo;
}
/**
* Returns the mastership info.
*
* @return the mastership info
*/
public MastershipInfo mastershipInfo() {
return mastershipInfo;
}
/**
* Returns the current role state for the subject.
*
* @return RoleInfo associated with Device ID subject
* @deprecated since 1.14
*/
@Deprecated
public RoleInfo roleInfo() {
return roleInfo;
return new RoleInfo(mastershipInfo.master().orElse(null), mastershipInfo.backups());
}
@Override
public int hashCode() {
return Objects.hash(type(), subject(), roleInfo(), time());
return Objects.hash(type(), subject(), mastershipInfo(), time());
}
@Override
@ -105,7 +115,7 @@ public class MastershipEvent extends AbstractEvent<MastershipEvent.Type, DeviceI
final MastershipEvent other = (MastershipEvent) obj;
return Objects.equals(this.type(), other.type()) &&
Objects.equals(this.subject(), other.subject()) &&
Objects.equals(this.roleInfo(), other.roleInfo()) &&
Objects.equals(this.mastershipInfo(), other.mastershipInfo()) &&
Objects.equals(this.time(), other.time());
}
return false;
@ -117,7 +127,7 @@ public class MastershipEvent extends AbstractEvent<MastershipEvent.Type, DeviceI
.add("time", Tools.defaultOffsetDataTime(time()))
.add("type", type())
.add("subject", subject())
.add("roleInfo", roleInfo)
.add("mastershipInfo", mastershipInfo())
.toString();
}
}

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@ -0,0 +1,124 @@
/*
* Copyright 2018-present Open Networking Foundation
*
* 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.mastership;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.stream.Collectors;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import org.onosproject.cluster.NodeId;
import org.onosproject.net.MastershipRole;
import static com.google.common.base.MoreObjects.toStringHelper;
/**
* Mastership info.
*/
public final class MastershipInfo {
private final long term;
private final Optional<NodeId> master;
private final ImmutableMap<NodeId, MastershipRole> roles;
public MastershipInfo() {
this(0, Optional.empty(), ImmutableMap.of());
}
public MastershipInfo(long term, Optional<NodeId> master, ImmutableMap<NodeId, MastershipRole> roles) {
this.term = term;
this.master = master;
this.roles = roles;
}
/**
* Returns the mastership term.
*
* @return the mastership term
*/
public long term() {
return term;
}
/**
* Returns the current master.
*
* @return the current master
*/
public Optional<NodeId> master() {
return master;
}
/**
* Returns a sorted list of standby nodes.
*
* @return a sorted list of standby nodes
*/
public List<NodeId> backups() {
return getRoles(MastershipRole.STANDBY);
}
/**
* Returns the list of nodes with the given role.
*
* @param role the role by which to filter nodes
* @return an immutable list of nodes with the given role sorted in priority order
*/
public List<NodeId> getRoles(MastershipRole role) {
return ImmutableList.copyOf(roles.entrySet()
.stream()
.filter(entry -> entry.getValue() == role)
.map(Map.Entry::getKey)
.collect(Collectors.toList()));
}
/**
* Returns the current role for the given node.
*
* @param nodeId the node for which to return the current role
* @return the current role for the given node
*/
public MastershipRole getRole(NodeId nodeId) {
return roles.get(nodeId);
}
@Override
public int hashCode() {
return Objects.hash(term, master, roles);
}
@Override
public boolean equals(Object object) {
if (object instanceof MastershipInfo) {
MastershipInfo that = (MastershipInfo) object;
return this.term == that.term
&& Objects.equals(this.master, that.master)
&& Objects.equals(this.roles, that.roles);
}
return false;
}
@Override
public String toString() {
return toStringHelper(this)
.add("term", term)
.add("master", master)
.add("roles", roles)
.toString();
}
}

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@ -119,6 +119,14 @@ public interface MastershipService
*/
RoleInfo getNodesFor(DeviceId deviceId);
/**
* Returns the mastership info for the given device.
*
* @param deviceId the device for which to return the mastership info
* @return the mastership info for the given device
*/
MastershipInfo getMastershipFor(DeviceId deviceId);
/**
* Returns the devices for which a controller is master.
* <p>

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@ -73,7 +73,6 @@ public interface MastershipStore extends Store<MastershipEvent, MastershipStoreD
*/
Set<DeviceId> getDevices(NodeId nodeId);
/**
* Sets a device's role for a specified controller instance.
*
@ -92,6 +91,14 @@ public interface MastershipStore extends Store<MastershipEvent, MastershipStoreD
*/
MastershipTerm getTermFor(DeviceId deviceId);
/**
* Returns the mastership info for the given device.
*
* @param deviceId the device for which to return the mastership info
* @return the mastership info for the given device
*/
MastershipInfo getMastership(DeviceId deviceId);
/**
* Sets a controller instance's mastership role to STANDBY for a device.
* If the role is MASTER, another controller instance will be selected

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@ -15,14 +15,15 @@
*/
package org.onosproject.mastership;
import com.google.common.collect.ImmutableMap;
import com.google.common.testing.EqualsTester;
import org.junit.Test;
import org.onosproject.cluster.NodeId;
import org.onosproject.cluster.RoleInfo;
import org.onosproject.net.DeviceId;
import org.onosproject.net.MastershipRole;
import java.util.Arrays;
import java.util.Optional;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
@ -36,21 +37,33 @@ public class MastershipEventTest {
private final DeviceId deviceId2 = DeviceId.deviceId("bar:baz");
private final NodeId node1 = new NodeId("1");
private final NodeId node2 = new NodeId("2");
private final RoleInfo roleInfo1 = new RoleInfo(node1, Arrays.asList(node1, node2));
private final RoleInfo roleInfo2 = new RoleInfo(node2, Arrays.asList(node2, node1));
private final MastershipInfo mastershipInfo1 = new MastershipInfo(
1,
Optional.of(node1),
ImmutableMap.<NodeId, MastershipRole>builder()
.put(node1, MastershipRole.MASTER)
.put(node2, MastershipRole.STANDBY)
.build());
private final MastershipInfo mastershipInfo2 = new MastershipInfo(
2,
Optional.of(node1),
ImmutableMap.<NodeId, MastershipRole>builder()
.put(node2, MastershipRole.MASTER)
.put(node1, MastershipRole.STANDBY)
.build());
private final MastershipEvent event1 =
new MastershipEvent(MastershipEvent.Type.BACKUPS_CHANGED, deviceId1, roleInfo1);
new MastershipEvent(MastershipEvent.Type.BACKUPS_CHANGED, deviceId1, mastershipInfo1);
private final MastershipEvent event2 =
new MastershipEvent(MastershipEvent.Type.MASTER_CHANGED, deviceId1, roleInfo1);
new MastershipEvent(MastershipEvent.Type.MASTER_CHANGED, deviceId1, mastershipInfo1);
private final MastershipEvent event3 =
new MastershipEvent(MastershipEvent.Type.SUSPENDED, deviceId1, roleInfo1);
new MastershipEvent(MastershipEvent.Type.SUSPENDED, deviceId1, mastershipInfo1);
private final MastershipEvent event4 =
new MastershipEvent(MastershipEvent.Type.MASTER_CHANGED, deviceId1, roleInfo2, time);
new MastershipEvent(MastershipEvent.Type.MASTER_CHANGED, deviceId1, mastershipInfo2, time);
private final MastershipEvent sameAsEvent4 =
new MastershipEvent(MastershipEvent.Type.MASTER_CHANGED, deviceId1, roleInfo2, time);
new MastershipEvent(MastershipEvent.Type.MASTER_CHANGED, deviceId1, mastershipInfo2, time);
private final MastershipEvent event5 =
new MastershipEvent(MastershipEvent.Type.BACKUPS_CHANGED, deviceId2, roleInfo1);
new MastershipEvent(MastershipEvent.Type.BACKUPS_CHANGED, deviceId2, mastershipInfo1);
/**
* Tests for proper operation of equals(), hashCode() and toString() methods.
@ -73,12 +86,12 @@ public class MastershipEventTest {
public void checkConstruction() {
assertThat(event1.type(), is(MastershipEvent.Type.BACKUPS_CHANGED));
assertThat(event1.subject(), is(deviceId1));
assertThat(event1.roleInfo(), is(roleInfo1));
assertThat(event1.mastershipInfo(), is(mastershipInfo1));
assertThat(event4.time(), is(time));
assertThat(event4.type(), is(MastershipEvent.Type.MASTER_CHANGED));
assertThat(event4.subject(), is(deviceId1));
assertThat(event4.roleInfo(), is(roleInfo2));
assertThat(event4.mastershipInfo(), is(mastershipInfo2));
}
}

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@ -0,0 +1,63 @@
/*
* Copyright 2018-present Open Networking Foundation
*
* 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.mastership;
import java.util.Optional;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import org.junit.Test;
import org.onosproject.cluster.NodeId;
import org.onosproject.net.MastershipRole;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
/**
* Mastership info test.
*/
public class MastershipInfoTest {
private final NodeId node1 = new NodeId("1");
private final NodeId node2 = new NodeId("2");
private final NodeId node3 = new NodeId("3");
private final NodeId node4 = new NodeId("4");
private final MastershipInfo mastershipInfo = new MastershipInfo(
1,
Optional.of(node1),
ImmutableMap.<NodeId, MastershipRole>builder()
.put(node1, MastershipRole.MASTER)
.put(node2, MastershipRole.STANDBY)
.put(node3, MastershipRole.STANDBY)
.put(node4, MastershipRole.NONE)
.build());
@Test
public void testMastershipInfo() throws Exception {
assertEquals(1, mastershipInfo.term());
assertEquals(node1, mastershipInfo.master().get());
assertEquals(Lists.newArrayList(node1), mastershipInfo.getRoles(MastershipRole.MASTER));
assertEquals(Lists.newArrayList(node2, node3), mastershipInfo.backups());
assertEquals(Lists.newArrayList(node2, node3), mastershipInfo.getRoles(MastershipRole.STANDBY));
assertEquals(Lists.newArrayList(node4), mastershipInfo.getRoles(MastershipRole.NONE));
}
@Test
public void testEquals() throws Exception {
assertEquals(mastershipInfo, mastershipInfo);
assertNotEquals(mastershipInfo, new MastershipInfo(1, Optional.of(node1), ImmutableMap.of()));
}
}

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@ -47,6 +47,11 @@ public class MastershipServiceAdapter implements MastershipService {
return null;
}
@Override
public MastershipInfo getMastershipFor(DeviceId deviceId) {
return null;
}
@Override
public Set<DeviceId> getDevicesOf(NodeId nodeId) {
return null;

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@ -27,10 +27,12 @@ import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.atomic.AtomicInteger;
import com.google.common.collect.ImmutableMap;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
@ -48,6 +50,7 @@ import org.onosproject.cluster.RoleInfo;
import org.onosproject.core.Version;
import org.onosproject.core.VersionService;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipStore;
import org.onosproject.mastership.MastershipStoreDelegate;
import org.onosproject.mastership.MastershipTerm;
@ -177,7 +180,7 @@ public class SimpleMastershipStore
}
return CompletableFuture.completedFuture(
new MastershipEvent(MASTER_CHANGED, deviceId, getNodes(deviceId)));
new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(deviceId)));
}
@Override
@ -219,8 +222,7 @@ public class SimpleMastershipStore
incrementTerm(deviceId);
// remove from backup list
removeFromBackups(deviceId, node);
notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId,
getNodes(deviceId)));
notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(deviceId)));
return CompletableFuture.completedFuture(MastershipRole.MASTER);
}
return CompletableFuture.completedFuture(MastershipRole.STANDBY);
@ -229,14 +231,12 @@ public class SimpleMastershipStore
// no master => become master
masterMap.put(deviceId, node);
incrementTerm(deviceId);
notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId,
getNodes(deviceId)));
notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(deviceId)));
return CompletableFuture.completedFuture(MastershipRole.MASTER);
}
// add to backup list
if (addToBackup(deviceId, node)) {
notifyDelegate(new MastershipEvent(BACKUPS_CHANGED, deviceId,
getNodes(deviceId)));
notifyDelegate(new MastershipEvent(BACKUPS_CHANGED, deviceId, getMastership(deviceId)));
}
return CompletableFuture.completedFuture(MastershipRole.STANDBY);
default:
@ -298,6 +298,21 @@ public class SimpleMastershipStore
masterMap.get(deviceId), termMap.get(deviceId).get());
}
@Override
public MastershipInfo getMastership(DeviceId deviceId) {
ImmutableMap.Builder<NodeId, MastershipRole> roleBuilder = ImmutableMap.builder();
NodeId master = masterMap.get(deviceId);
if (master != null) {
roleBuilder.put(master, MastershipRole.MASTER);
}
backups.getOrDefault(deviceId, Collections.emptyList())
.forEach(nodeId -> roleBuilder.put(nodeId, MastershipRole.STANDBY));
return new MastershipInfo(
termMap.getOrDefault(deviceId, new AtomicInteger(NOTHING)).get(),
Optional.ofNullable(master),
roleBuilder.build());
}
@Override
public synchronized CompletableFuture<MastershipEvent> setStandby(NodeId nodeId, DeviceId deviceId) {
MastershipRole role = getRole(nodeId, deviceId);
@ -309,13 +324,13 @@ public class SimpleMastershipStore
masterMap.remove(deviceId);
// TODO: Should there be new event type for no MASTER?
return CompletableFuture.completedFuture(
new MastershipEvent(MASTER_CHANGED, deviceId, getNodes(deviceId)));
new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(deviceId)));
} else {
NodeId prevMaster = masterMap.put(deviceId, backup);
incrementTerm(deviceId);
addToBackup(deviceId, prevMaster);
return CompletableFuture.completedFuture(
new MastershipEvent(MASTER_CHANGED, deviceId, getNodes(deviceId)));
new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(deviceId)));
}
case STANDBY:
@ -323,7 +338,7 @@ public class SimpleMastershipStore
boolean modified = addToBackup(deviceId, nodeId);
if (modified) {
return CompletableFuture.completedFuture(
new MastershipEvent(BACKUPS_CHANGED, deviceId, getNodes(deviceId)));
new MastershipEvent(BACKUPS_CHANGED, deviceId, getMastership(deviceId)));
}
break;
@ -357,12 +372,12 @@ public class SimpleMastershipStore
masterMap.put(deviceId, backup);
incrementTerm(deviceId);
return CompletableFuture.completedFuture(
new MastershipEvent(MASTER_CHANGED, deviceId, getNodes(deviceId)));
new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(deviceId)));
case STANDBY:
if (removeFromBackups(deviceId, nodeId)) {
return CompletableFuture.completedFuture(
new MastershipEvent(BACKUPS_CHANGED, deviceId, getNodes(deviceId)));
new MastershipEvent(BACKUPS_CHANGED, deviceId, getMastership(deviceId)));
}
break;

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@ -39,6 +39,7 @@ import org.onosproject.core.MetricsHelper;
import org.onosproject.event.AbstractListenerManager;
import org.onosproject.mastership.MastershipAdminService;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipListener;
import org.onosproject.mastership.MastershipService;
import org.onosproject.mastership.MastershipStore;
@ -238,6 +239,13 @@ public class MastershipManager
return store.getNodes(deviceId);
}
@Override
public MastershipInfo getMastershipFor(DeviceId deviceId) {
checkPermission(CLUSTER_READ);
checkNotNull(deviceId, DEVICE_ID_NULL);
return store.getMastership(deviceId);
}
@Override
public MastershipTerm getMastershipTerm(DeviceId deviceId) {
checkPermission(CLUSTER_READ);

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@ -29,20 +29,32 @@ import static com.google.common.base.Preconditions.checkNotNull;
*/
public final class ReplicaInfo {
private final long term;
private final Optional<NodeId> master;
private final List<NodeId> backups;
/**
* Creates a ReplicaInfo instance.
*
* @param term monotonically increasing unique mastership term
* @param master NodeId of the node where the master copy should be
* @param backups list of NodeId, where backup copies should be placed
*/
public ReplicaInfo(NodeId master, List<NodeId> backups) {
public ReplicaInfo(long term, NodeId master, List<NodeId> backups) {
this.term = term;
this.master = Optional.ofNullable(master);
this.backups = checkNotNull(backups);
}
/**
* Returns the mastership term.
*
* @return the mastership term
*/
public long term() {
return term;
}
/**
* Returns the NodeId, if there is a Node where the master copy should be.
*
@ -78,6 +90,7 @@ public final class ReplicaInfo {
// for Serializer
private ReplicaInfo() {
this.term = 0;
this.master = Optional.empty();
this.backups = Collections.emptyList();
}

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@ -15,18 +15,16 @@
*/
package org.onosproject.store.flow.impl;
import com.google.common.collect.ImmutableList;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.ReferenceCardinality;
import org.apache.felix.scr.annotations.Service;
import org.onosproject.cluster.NodeId;
import org.onosproject.cluster.RoleInfo;
import org.onosproject.event.EventDeliveryService;
import org.onosproject.event.ListenerRegistry;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipListener;
import org.onosproject.mastership.MastershipService;
import org.onosproject.net.DeviceId;
@ -36,8 +34,6 @@ import org.onosproject.store.flow.ReplicaInfoEventListener;
import org.onosproject.store.flow.ReplicaInfoService;
import org.slf4j.Logger;
import java.util.Collections;
import java.util.List;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.onosproject.store.flow.ReplicaInfoEvent.Type.BACKUPS_CHANGED;
import static org.onosproject.store.flow.ReplicaInfoEvent.Type.MASTER_CHANGED;
@ -79,7 +75,7 @@ public class ReplicaInfoManager implements ReplicaInfoService {
@Override
public ReplicaInfo getReplicaInfoFor(DeviceId deviceId) {
return buildFromRoleInfo(mastershipService.getNodesFor(deviceId));
return buildFromRoleInfo(mastershipService.getMastershipFor(deviceId));
}
@Override
@ -92,17 +88,15 @@ public class ReplicaInfoManager implements ReplicaInfoService {
listenerRegistry.removeListener(checkNotNull(listener));
}
private static ReplicaInfo buildFromRoleInfo(RoleInfo roles) {
List<NodeId> backups = roles.backups() == null ?
Collections.emptyList() : ImmutableList.copyOf(roles.backups());
return new ReplicaInfo(roles.master(), backups);
private static ReplicaInfo buildFromRoleInfo(MastershipInfo mastership) {
return new ReplicaInfo(mastership.term(), mastership.master().orElse(null), mastership.backups());
}
final class InternalMastershipListener implements MastershipListener {
@Override
public void event(MastershipEvent event) {
final ReplicaInfo replicaInfo = buildFromRoleInfo(event.roleInfo());
final ReplicaInfo replicaInfo = buildFromRoleInfo(event.mastershipInfo());
switch (event.type()) {
case MASTER_CHANGED:
eventDispatcher.post(new ReplicaInfoEvent(MASTER_CHANGED,

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@ -23,7 +23,8 @@ import static org.slf4j.LoggerFactory.getLogger;
import static com.google.common.base.Preconditions.checkArgument;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
@ -34,6 +35,7 @@ import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import com.google.common.collect.ImmutableMap;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
@ -50,6 +52,7 @@ import org.onosproject.cluster.LeadershipService;
import org.onosproject.cluster.NodeId;
import org.onosproject.cluster.RoleInfo;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipStore;
import org.onosproject.mastership.MastershipStoreDelegate;
import org.onosproject.mastership.MastershipTerm;
@ -62,10 +65,7 @@ import org.onosproject.store.serializers.KryoNamespaces;
import org.onosproject.store.service.Serializer;
import org.slf4j.Logger;
import com.google.common.base.Objects;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
/**
* Implementation of the MastershipStore on top of Leadership Service.
@ -158,7 +158,7 @@ public class ConsistentDeviceMastershipStore
NodeId leader = leadership == null ? null : leadership.leaderNodeId();
List<NodeId> candidates = leadership == null ?
ImmutableList.of() : ImmutableList.copyOf(leadership.candidates());
MastershipRole role = Objects.equal(localNodeId, leader) ?
MastershipRole role = Objects.equals(localNodeId, leader) ?
MastershipRole.MASTER : candidates.contains(localNodeId) ? MastershipRole.STANDBY : MastershipRole.NONE;
return CompletableFuture.completedFuture(role);
}
@ -173,7 +173,7 @@ public class ConsistentDeviceMastershipStore
NodeId leader = leadership == null ? null : leadership.leaderNodeId();
List<NodeId> candidates = leadership == null ?
ImmutableList.of() : ImmutableList.copyOf(leadership.candidates());
return Objects.equal(nodeId, leader) ?
return Objects.equals(nodeId, leader) ?
MastershipRole.MASTER : candidates.contains(nodeId) ? MastershipRole.STANDBY : MastershipRole.NONE;
}
@ -187,27 +187,15 @@ public class ConsistentDeviceMastershipStore
@Override
public RoleInfo getNodes(DeviceId deviceId) {
checkArgument(deviceId != null, DEVICE_ID_NULL);
Leadership leadership = leadershipService.getLeadership(createDeviceMastershipTopic(deviceId));
return new RoleInfo(leadership.leaderNodeId(), leadership.candidates());
}
Map<NodeId, MastershipRole> roles = Maps.newHashMap();
clusterService.getNodes()
.forEach((node) -> roles.put(node.id(), getRole(node.id(), deviceId)));
NodeId master = null;
final List<NodeId> standbys = Lists.newLinkedList();
List<NodeId> candidates = leadershipService.getCandidates(createDeviceMastershipTopic(deviceId));
for (Map.Entry<NodeId, MastershipRole> entry : roles.entrySet()) {
if (entry.getValue() == MastershipRole.MASTER) {
master = entry.getKey();
} else if (entry.getValue() == MastershipRole.STANDBY) {
standbys.add(entry.getKey());
}
}
List<NodeId> sortedStandbyList = candidates.stream().filter(standbys::contains).collect(Collectors.toList());
return new RoleInfo(master, sortedStandbyList);
@Override
public MastershipInfo getMastership(DeviceId deviceId) {
checkArgument(deviceId != null, DEVICE_ID_NULL);
Leadership leadership = leadershipService.getLeadership(createDeviceMastershipTopic(deviceId));
return buildMastershipFromLeadership(leadership);
}
@Override
@ -263,7 +251,7 @@ public class ConsistentDeviceMastershipStore
List<NodeId> candidates = leadershipService.getCandidates(leadershipTopic);
NodeId newMaster = candidates.stream()
.filter(candidate -> !Objects.equal(nodeId, candidate))
.filter(candidate -> !Objects.equals(nodeId, candidate))
.findFirst()
.orElse(null);
log.info("Transitioning to role {} for {}. Next master: {}",
@ -304,7 +292,7 @@ public class ConsistentDeviceMastershipStore
MastershipEvent.Type eventType = localNodeId.equals(leadershipService.getLeader(leadershipTopic)) ?
MastershipEvent.Type.MASTER_CHANGED : MastershipEvent.Type.BACKUPS_CHANGED;
leadershipService.withdraw(leadershipTopic);
return CompletableFuture.completedFuture(new MastershipEvent(eventType, deviceId, getNodes(deviceId)));
return CompletableFuture.completedFuture(new MastershipEvent(eventType, deviceId, getMastership(deviceId)));
}
@Override
@ -312,6 +300,27 @@ public class ConsistentDeviceMastershipStore
// Noop. LeadershipService already takes care of detecting and purging stale locks.
}
private MastershipInfo buildMastershipFromLeadership(Leadership leadership) {
ImmutableMap.Builder<NodeId, MastershipRole> builder = ImmutableMap.builder();
if (leadership.leaderNodeId() != null) {
builder.put(leadership.leaderNodeId(), MastershipRole.MASTER);
}
leadership.candidates().stream()
.filter(nodeId -> !Objects.equals(leadership.leaderNodeId(), nodeId))
.forEach(nodeId -> builder.put(nodeId, MastershipRole.STANDBY));
clusterService.getNodes().stream()
.filter(node -> !Objects.equals(leadership.leaderNodeId(), node.id()))
.filter(node -> !leadership.candidates().contains(node.id()))
.forEach(node -> builder.put(node.id(), MastershipRole.NONE));
return new MastershipInfo(
leadership.leader() != null ? leadership.leader().term() : 0,
leadership.leader() != null
? Optional.of(leadership.leader().nodeId())
: Optional.empty(),
builder.build());
}
private class InternalDeviceMastershipEventListener implements LeadershipEventListener {
@Override
@ -328,27 +337,23 @@ public class ConsistentDeviceMastershipStore
private void handleEvent(LeadershipEvent event) {
Leadership leadership = event.subject();
DeviceId deviceId = extractDeviceIdFromTopic(leadership.topic());
NodeId master = event.subject().leaderNodeId();
List<NodeId> backups = event.subject().candidates()
.stream()
.filter(n -> !n.equals(master))
.collect(Collectors.toList());
RoleInfo roleInfo = event.type() != LeadershipEvent.Type.SERVICE_DISRUPTED
? new RoleInfo(master, backups)
: new RoleInfo();
MastershipInfo mastershipInfo = event.type() != LeadershipEvent.Type.SERVICE_DISRUPTED
? buildMastershipFromLeadership(event.subject())
: new MastershipInfo();
switch (event.type()) {
case LEADER_AND_CANDIDATES_CHANGED:
notifyDelegate(new MastershipEvent(BACKUPS_CHANGED, deviceId, roleInfo));
notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId, roleInfo));
notifyDelegate(new MastershipEvent(BACKUPS_CHANGED, deviceId, mastershipInfo));
notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId, mastershipInfo));
break;
case LEADER_CHANGED:
notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId, roleInfo));
notifyDelegate(new MastershipEvent(MASTER_CHANGED, deviceId, mastershipInfo));
break;
case CANDIDATES_CHANGED:
notifyDelegate(new MastershipEvent(BACKUPS_CHANGED, deviceId, roleInfo));
notifyDelegate(new MastershipEvent(BACKUPS_CHANGED, deviceId, mastershipInfo));
break;
case SERVICE_DISRUPTED:
notifyDelegate(new MastershipEvent(SUSPENDED, deviceId, roleInfo));
notifyDelegate(new MastershipEvent(SUSPENDED, deviceId, mastershipInfo));
break;
case SERVICE_RESTORED:
// Do nothing, wait for updates from peers

View File

@ -15,32 +15,33 @@
*/
package org.onosproject.store.flow.impl;
import java.util.Collections;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import com.google.common.collect.ImmutableMap;
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.MastershipInfo;
import org.onosproject.mastership.MastershipListener;
import org.onosproject.mastership.MastershipService;
import org.onosproject.mastership.MastershipServiceAdapter;
import org.onosproject.net.DeviceId;
import org.onosproject.net.MastershipRole;
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.Optional;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
@ -101,7 +102,7 @@ public class ReplicaInfoManagerTest {
// fake MastershipEvent
eventDispatcher.post(new MastershipEvent(Type.MASTER_CHANGED, DID1,
new RoleInfo(NID1, new LinkedList<>())));
new MastershipInfo(1, Optional.of(NID1), ImmutableMap.of(NID1, MastershipRole.MASTER))));
assertTrue(latch.await(1, TimeUnit.SECONDS));
}
@ -149,8 +150,11 @@ public class ReplicaInfoManagerTest {
}
@Override
public RoleInfo getNodesFor(DeviceId deviceId) {
return new RoleInfo(masters.get(deviceId), Collections.emptyList());
public MastershipInfo getMastershipFor(DeviceId deviceId) {
return new MastershipInfo(
1,
Optional.ofNullable(masters.get(deviceId)),
ImmutableMap.of(NID1, MastershipRole.MASTER));
}
@Override

View File

@ -16,7 +16,15 @@
package org.onosproject.drivers.netconf;
import org.onosproject.mastership.MastershipServiceAdapter;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import org.onosproject.cluster.NodeId;
import org.onosproject.cluster.RoleInfo;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipListener;
import org.onosproject.net.DeviceId;
import org.onosproject.net.MastershipRole;
public class MockMastershipService extends MastershipServiceAdapter {
@ -30,4 +38,57 @@ public class MockMastershipService extends MastershipServiceAdapter {
}
return false;
}
@Override
public void addListener(MastershipListener listener) {
// TODO Auto-generated method stub
}
@Override
public void removeListener(MastershipListener listener) {
// TODO Auto-generated method stub
}
@Override
public MastershipRole getLocalRole(DeviceId deviceId) {
// TODO Auto-generated method stub
return null;
}
@Override
public CompletableFuture<MastershipRole> requestRoleFor(DeviceId deviceId) {
// TODO Auto-generated method stub
return null;
}
@Override
public CompletableFuture<Void> relinquishMastership(DeviceId deviceId) {
// TODO Auto-generated method stub
return null;
}
@Override
public NodeId getMasterFor(DeviceId deviceId) {
// TODO Auto-generated method stub
return null;
}
@Override
public RoleInfo getNodesFor(DeviceId deviceId) {
// TODO Auto-generated method stub
return null;
}
@Override
public MastershipInfo getMastershipFor(DeviceId deviceId) {
return null;
}
@Override
public Set<DeviceId> getDevicesOf(NodeId nodeId) {
// TODO Auto-generated method stub
return null;
}
}

View File

@ -19,6 +19,7 @@ package org.onosproject.incubator.net.virtual;
import org.onosproject.cluster.NodeId;
import org.onosproject.cluster.RoleInfo;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipStoreDelegate;
import org.onosproject.mastership.MastershipTerm;
import org.onosproject.net.DeviceId;
@ -73,6 +74,15 @@ public interface VirtualNetworkMastershipStore
*/
RoleInfo getNodes(NetworkId networkId, DeviceId deviceId);
/**
* Returns the mastership info for a device.
*
* @param networkId virtual network identifier
* @param deviceId the device identifier
* @return the mastership info
*/
MastershipInfo getMastership(NetworkId networkId, DeviceId deviceId);
/**
* Returns the devices that a controller instance is master of.
*

View File

@ -31,6 +31,7 @@ import org.onosproject.incubator.net.virtual.VirtualNetworkService;
import org.onosproject.incubator.net.virtual.event.AbstractVirtualListenerManager;
import org.onosproject.mastership.MastershipAdminService;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipListener;
import org.onosproject.mastership.MastershipService;
import org.onosproject.mastership.MastershipStoreDelegate;
@ -154,6 +155,12 @@ public class VirtualNetworkMastershipManager
return store.getNodes(networkId, deviceId);
}
@Override
public MastershipInfo getMastershipFor(DeviceId deviceId) {
checkNotNull(deviceId, DEVICE_ID_NULL);
return store.getMastership(networkId, deviceId);
}
@Override
public Set<DeviceId> getDevicesOf(NodeId nodeId) {
checkNotNull(nodeId, NODE_ID_NULL);

View File

@ -211,6 +211,5 @@ public class GrpcNbMastershipServiceTest {
public RoleInfo getNodesFor(DeviceId deviceId) {
return roleInfoMap.get(deviceId);
}
}
}

View File

@ -16,6 +16,7 @@
package org.onosproject.incubator.store.virtual.impl;
import com.google.common.collect.ImmutableMap;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
@ -34,6 +35,7 @@ import org.onosproject.cluster.RoleInfo;
import org.onosproject.incubator.net.virtual.NetworkId;
import org.onosproject.incubator.net.virtual.VirtualNetworkMastershipStore;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipStoreDelegate;
import org.onosproject.mastership.MastershipTerm;
import org.onosproject.net.DeviceId;
@ -45,7 +47,7 @@ import org.onosproject.store.service.Serializer;
import org.slf4j.Logger;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutorService;
@ -64,8 +66,6 @@ import static org.slf4j.LoggerFactory.getLogger;
import com.google.common.base.Objects;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import static com.google.common.base.Preconditions.checkArgument;
@Component(immediate = true, enabled = false)
@ -188,30 +188,16 @@ public class ConsistentVirtualDeviceMastershipStore
public RoleInfo getNodes(NetworkId networkId, DeviceId deviceId) {
checkArgument(networkId != null, NETWORK_ID_NULL);
checkArgument(deviceId != null, DEVICE_ID_NULL);
Leadership leadership = leadershipService.getLeadership(createDeviceMastershipTopic(networkId, deviceId));
return new RoleInfo(leadership.leaderNodeId(), leadership.candidates());
}
Map<NodeId, MastershipRole> roles = Maps.newHashMap();
clusterService.getNodes()
.forEach((node) -> roles.put(node.id(),
getRole(networkId, node.id(), deviceId)));
NodeId master = null;
final List<NodeId> standbys = Lists.newLinkedList();
List<NodeId> candidates = leadershipService
.getCandidates(createDeviceMastershipTopic(networkId, deviceId));
for (Map.Entry<NodeId, MastershipRole> entry : roles.entrySet()) {
if (entry.getValue() == MastershipRole.MASTER) {
master = entry.getKey();
} else if (entry.getValue() == MastershipRole.STANDBY) {
standbys.add(entry.getKey());
}
}
List<NodeId> sortedStandbyList = candidates.stream()
.filter(standbys::contains).collect(Collectors.toList());
return new RoleInfo(master, sortedStandbyList);
@Override
public MastershipInfo getMastership(NetworkId networkId, DeviceId deviceId) {
checkArgument(networkId != null, NETWORK_ID_NULL);
checkArgument(deviceId != null, DEVICE_ID_NULL);
Leadership leadership = leadershipService.getLeadership(createDeviceMastershipTopic(networkId, deviceId));
return buildMastershipFromLeadership(leadership);
}
@Override
@ -322,9 +308,8 @@ public class ConsistentVirtualDeviceMastershipStore
MastershipEvent.Type eventType = localNodeId.equals(leadershipService.getLeader(leadershipTopic)) ?
MastershipEvent.Type.MASTER_CHANGED : MastershipEvent.Type.BACKUPS_CHANGED;
leadershipService.withdraw(leadershipTopic);
return CompletableFuture.completedFuture(new MastershipEvent(eventType,
deviceId,
getNodes(networkId, deviceId)));
return CompletableFuture.completedFuture(
new MastershipEvent(eventType, deviceId, getMastership(networkId, deviceId)));
}
private CompletableFuture<MastershipEvent>
@ -338,6 +323,24 @@ public class ConsistentVirtualDeviceMastershipStore
// Noop. LeadershipService already takes care of detecting and purging stale locks.
}
private MastershipInfo buildMastershipFromLeadership(Leadership leadership) {
ImmutableMap.Builder<NodeId, MastershipRole> builder = ImmutableMap.builder();
if (leadership.leaderNodeId() != null) {
builder.put(leadership.leaderNodeId(), MastershipRole.MASTER);
}
leadership.candidates().forEach(nodeId -> builder.put(nodeId, MastershipRole.STANDBY));
clusterService.getNodes().stream()
.filter(node -> !leadership.candidates().contains(node.id()))
.forEach(node -> builder.put(node.id(), MastershipRole.NONE));
return new MastershipInfo(
leadership.leader() != null ? leadership.leader().term() : 0,
leadership.leader() != null
? Optional.of(leadership.leader().nodeId())
: Optional.empty(),
builder.build());
}
private class InternalDeviceMastershipEventListener
implements LeadershipEventListener {
@ -357,28 +360,23 @@ public class ConsistentVirtualDeviceMastershipStore
NetworkId networkId = extractNetworkIdFromTopic(leadership.topic());
DeviceId deviceId = extractDeviceIdFromTopic(leadership.topic());
RoleInfo roleInfo = event.type() != LeadershipEvent.Type.SERVICE_DISRUPTED ?
getNodes(networkId, deviceId) : new RoleInfo();
MastershipInfo mastershipInfo = event.type() != LeadershipEvent.Type.SERVICE_DISRUPTED
? buildMastershipFromLeadership(event.subject())
: new MastershipInfo();
switch (event.type()) {
case LEADER_AND_CANDIDATES_CHANGED:
notifyDelegate(networkId, new MastershipEvent(BACKUPS_CHANGED,
deviceId, roleInfo));
notifyDelegate(networkId, new MastershipEvent(MASTER_CHANGED,
deviceId, roleInfo));
notifyDelegate(networkId, new MastershipEvent(BACKUPS_CHANGED, deviceId, mastershipInfo));
notifyDelegate(networkId, new MastershipEvent(MASTER_CHANGED, deviceId, mastershipInfo));
break;
case LEADER_CHANGED:
notifyDelegate(networkId, new MastershipEvent(MASTER_CHANGED,
deviceId, roleInfo));
notifyDelegate(networkId, new MastershipEvent(MASTER_CHANGED, deviceId, mastershipInfo));
break;
case CANDIDATES_CHANGED:
notifyDelegate(networkId, new MastershipEvent(BACKUPS_CHANGED,
deviceId, roleInfo));
notifyDelegate(networkId, new MastershipEvent(BACKUPS_CHANGED, deviceId, mastershipInfo));
break;
case SERVICE_DISRUPTED:
notifyDelegate(networkId, new MastershipEvent(SUSPENDED,
deviceId, roleInfo));
notifyDelegate(networkId, new MastershipEvent(SUSPENDED, deviceId, mastershipInfo));
break;
case SERVICE_RESTORED:
// Do nothing, wait for updates from peers

View File

@ -17,6 +17,7 @@
package org.onosproject.incubator.store.virtual.impl;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
@ -36,6 +37,7 @@ import org.onosproject.core.VersionService;
import org.onosproject.incubator.net.virtual.NetworkId;
import org.onosproject.incubator.net.virtual.VirtualNetworkMastershipStore;
import org.onosproject.mastership.MastershipEvent;
import org.onosproject.mastership.MastershipInfo;
import org.onosproject.mastership.MastershipStoreDelegate;
import org.onosproject.mastership.MastershipTerm;
import org.onosproject.net.DeviceId;
@ -50,6 +52,7 @@ import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.atomic.AtomicInteger;
@ -122,7 +125,7 @@ public class SimpleVirtualMastershipStore
// remove from backup list
removeFromBackups(networkId, deviceId, node);
notifyDelegate(networkId, new MastershipEvent(MASTER_CHANGED, deviceId,
getNodes(networkId, deviceId)));
getMastership(networkId, deviceId)));
return CompletableFuture.completedFuture(MastershipRole.MASTER);
}
return CompletableFuture.completedFuture(MastershipRole.STANDBY);
@ -132,13 +135,13 @@ public class SimpleVirtualMastershipStore
masterMap.put(deviceId, node);
incrementTerm(networkId, deviceId);
notifyDelegate(networkId, new MastershipEvent(MASTER_CHANGED, deviceId,
getNodes(networkId, deviceId)));
getMastership(networkId, deviceId)));
return CompletableFuture.completedFuture(MastershipRole.MASTER);
}
// add to backup list
if (addToBackup(networkId, deviceId, node)) {
notifyDelegate(networkId, new MastershipEvent(BACKUPS_CHANGED, deviceId,
getNodes(networkId, deviceId)));
getMastership(networkId, deviceId)));
}
return CompletableFuture.completedFuture(MastershipRole.STANDBY);
default:
@ -183,6 +186,27 @@ public class SimpleVirtualMastershipStore
backups.getOrDefault(deviceId, ImmutableList.of()));
}
@Override
public MastershipInfo getMastership(NetworkId networkId, DeviceId deviceId) {
Map<DeviceId, NodeId> masterMap = getMasterMap(networkId);
Map<DeviceId, AtomicInteger> termMap = getTermMap(networkId);
Map<DeviceId, List<NodeId>> backups = getBackups(networkId);
ImmutableMap.Builder<NodeId, MastershipRole> roleBuilder = ImmutableMap.builder();
NodeId master = masterMap.get(deviceId);
if (master != null) {
roleBuilder.put(master, MastershipRole.MASTER);
}
backups.getOrDefault(master, Collections.emptyList())
.forEach(nodeId -> roleBuilder.put(nodeId, MastershipRole.STANDBY));
clusterService.getNodes().stream()
.filter(node -> !masterMap.containsValue(node.id()))
.forEach(node -> roleBuilder.put(node.id(), MastershipRole.NONE));
return new MastershipInfo(
termMap.getOrDefault(deviceId, new AtomicInteger(NOTHING)).get(),
Optional.ofNullable(master),
roleBuilder.build());
}
@Override
public Set<DeviceId> getDevices(NetworkId networkId, NodeId nodeId) {
Map<DeviceId, NodeId> masterMap = getMasterMap(networkId);
@ -219,7 +243,7 @@ public class SimpleVirtualMastershipStore
}
return CompletableFuture.completedFuture(
new MastershipEvent(MASTER_CHANGED, deviceId, getNodes(networkId, deviceId)));
new MastershipEvent(MASTER_CHANGED, deviceId, getMastership(networkId, deviceId)));
}
@Override
@ -249,14 +273,14 @@ public class SimpleVirtualMastershipStore
// TODO: Should there be new event type for no MASTER?
return CompletableFuture.completedFuture(
new MastershipEvent(MASTER_CHANGED, deviceId,
getNodes(networkId, deviceId)));
getMastership(networkId, deviceId)));
} else {
NodeId prevMaster = masterMap.put(deviceId, backup);
incrementTerm(networkId, deviceId);
addToBackup(networkId, deviceId, prevMaster);
return CompletableFuture.completedFuture(
new MastershipEvent(MASTER_CHANGED, deviceId,
getNodes(networkId, deviceId)));
getMastership(networkId, deviceId)));
}
case STANDBY:
@ -265,7 +289,7 @@ public class SimpleVirtualMastershipStore
if (modified) {
return CompletableFuture.completedFuture(
new MastershipEvent(BACKUPS_CHANGED, deviceId,
getNodes(networkId, deviceId)));
getMastership(networkId, deviceId)));
}
break;
@ -314,13 +338,13 @@ public class SimpleVirtualMastershipStore
incrementTerm(networkId, deviceId);
return CompletableFuture.completedFuture(
new MastershipEvent(MASTER_CHANGED, deviceId,
getNodes(networkId, deviceId)));
getMastership(networkId, deviceId)));
case STANDBY:
if (removeFromBackups(networkId, deviceId, nodeId)) {
return CompletableFuture.completedFuture(
new MastershipEvent(BACKUPS_CHANGED, deviceId,
getNodes(networkId, deviceId)));
getMastership(networkId, deviceId)));
}
break;