//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @SuppressWarnings("unchecked") private SwitchToSlaveCopyThenBranch newSwitchToSlaveSpy(org.neo4j.io.pagecache.PageCache pageCacheMock, org.neo4j.com.storecopy.StoreCopyClient storeCopyClient)
private SwitchToSlaveCopyThenBranch NewSwitchToSlaveSpy(PageCache pageCacheMock, StoreCopyClient storeCopyClient)
{
ClusterMembers clusterMembers = mock(typeof(ClusterMembers));
ClusterMember master = mock(typeof(ClusterMember));
when(master.StoreId).thenReturn(_storeId);
when(master.HARole).thenReturn(HighAvailabilityModeSwitcher.MASTER);
when(master.HasRole(eq(HighAvailabilityModeSwitcher.MASTER))).thenReturn(true);
when(master.InstanceId).thenReturn(new InstanceId(1));
when(clusterMembers.Members).thenReturn(asList(master));
Dependencies resolver = new Dependencies();
DatabaseAvailability databaseAvailability = mock(typeof(DatabaseAvailability));
when(databaseAvailability.Started).thenReturn(true);
resolver.SatisfyDependencies(_requestContextFactory, clusterMembers, mock(typeof(TransactionObligationFulfiller)), mock(typeof(OnlineBackupKernelExtension)), mock(typeof(IndexConfigStore)), mock(typeof(TransactionCommittingResponseUnpacker)), mock(typeof(DataSourceManager)), mock(typeof(StoreLockerLifecycleAdapter)), mock(typeof(FileSystemWatcherService)), databaseAvailability);
NeoStoreDataSource dataSource = mock(typeof(NeoStoreDataSource));
when(dataSource.StoreId).thenReturn(_storeId);
when(dataSource.DependencyResolver).thenReturn(resolver);
DatabaseTransactionStats transactionCounters = mock(typeof(DatabaseTransactionStats));
when(transactionCounters.NumberOfActiveTransactions).thenReturn(0L);
Response <HandshakeResult> response = mock(typeof(Response));
when(response.ResponseConflict()).thenReturn(new HandshakeResult(42, 2));
when(_masterClient.handshake(anyLong(), any(typeof(StoreId)))).thenReturn(response);
when(_masterClient.ProtocolVersion).thenReturn(Org.Neo4j.Kernel.ha.com.slave.MasterClient_Fields.Current);
TransactionIdStore transactionIdStoreMock = mock(typeof(TransactionIdStore));
// note that the checksum (the second member of the array) is the same as the one in the handshake mock above
when(transactionIdStoreMock.LastCommittedTransaction).thenReturn(new TransactionId(42, 42, 42));
MasterClientResolver masterClientResolver = mock(typeof(MasterClientResolver));
when(masterClientResolver.Instantiate(anyString(), anyInt(), anyString(), any(typeof(Monitors)), argThat(_storeId => true), any(typeof(LifeSupport)))).thenReturn(_masterClient);
return(spy(new SwitchToSlaveCopyThenBranch(TestDirectory.databaseLayout(), NullLogService.Instance, ConfigMock(), mock(typeof(HaIdGeneratorFactory)), mock(typeof(DelegateInvocationHandler)), mock(typeof(ClusterMemberAvailability)), _requestContextFactory, _pullerFactory, masterClientResolver, mock(typeof(SwitchToSlave.Monitor)), storeCopyClient, Suppliers.singleton(dataSource), Suppliers.singleton(transactionIdStoreMock), slave =>
{
SlaveServer server = mock(typeof(SlaveServer));
InetSocketAddress inetSocketAddress = InetSocketAddress.createUnresolved("localhost", 42);
when(server.SocketAddress).thenReturn(inetSocketAddress);
return server;
}, _updatePuller, pageCacheMock, mock(typeof(Monitors)), () => transactionCounters)));
}
internal ModularDatabaseCreationContext(string databaseName, PlatformModule platformModule, DatabaseEditionContext editionContext, Procedures procedures, GraphDatabaseFacade facade)
{
this._databaseName = databaseName;
this._config = platformModule.Config;
DatabaseIdContext idContext = editionContext.IdContext;
this._idGeneratorFactory = idContext.IdGeneratorFactory;
this._idController = idContext.IdController;
this._databaseLayout = platformModule.StoreLayout.databaseLayout(databaseName);
this._logService = platformModule.Logging;
this._scheduler = platformModule.JobScheduler;
this._globalDependencies = platformModule.Dependencies;
this._tokenHolders = editionContext.CreateTokenHolders();
this._tokenNameLookup = new NonTransactionalTokenNameLookup(_tokenHolders);
this._locks = editionContext.CreateLocks();
this._statementLocksFactory = editionContext.CreateStatementLocksFactory();
this._schemaWriteGuard = editionContext.SchemaWriteGuard;
this._transactionEventHandlers = new TransactionEventHandlers(facade);
this._monitors = new Monitors(platformModule.Monitors);
this._indexingServiceMonitor = _monitors.newMonitor(typeof(IndexingService.Monitor));
this._physicalLogMonitor = _monitors.newMonitor(typeof(LogFileCreationMonitor));
this._fs = platformModule.FileSystem;
this._transactionStats = editionContext.CreateTransactionMonitor();
this._databaseHealth = new DatabaseHealth(platformModule.PanicEventGenerator, _logService.getInternalLog(typeof(DatabaseHealth)));
this._transactionHeaderInformationFactory = editionContext.HeaderInformationFactory;
this._commitProcessFactory = editionContext.CommitProcessFactory;
this._autoIndexing = new InternalAutoIndexing(platformModule.Config, _tokenHolders.propertyKeyTokens());
this._indexConfigStore = new IndexConfigStore(_databaseLayout, _fs);
this._explicitIndexProvider = new DefaultExplicitIndexProvider();
this._pageCache = platformModule.PageCache;
this._constraintSemantics = editionContext.ConstraintSemantics;
this._tracers = platformModule.Tracers;
this._procedures = procedures;
this._ioLimiter = editionContext.IoLimiter;
this._clock = platformModule.Clock;
this._databaseAvailabilityGuard = editionContext.CreateDatabaseAvailabilityGuard(_clock, _logService, _config);
this._databaseAvailability = new DatabaseAvailability(_databaseAvailabilityGuard, _transactionStats, platformModule.Clock, AwaitActiveTransactionDeadlineMillis);
this._coreAPIAvailabilityGuard = new CoreAPIAvailabilityGuard(_databaseAvailabilityGuard, editionContext.TransactionStartTimeout);
this._accessCapability = editionContext.AccessCapability;
this._storeCopyCheckPointMutex = new StoreCopyCheckPointMutex();
this._recoveryCleanupWorkCollector = platformModule.RecoveryCleanupWorkCollector;
this._databaseInfo = platformModule.DatabaseInfo;
this._versionContextSupplier = platformModule.VersionContextSupplier;
this._collectionsFactorySupplier = platformModule.CollectionsFactorySupplier;
this._kernelExtensionFactories = platformModule.KernelExtensionFactories;
this._watcherServiceFactory = editionContext.WatcherServiceFactory;
this._facade = facade;
this._engineProviders = platformModule.EngineProviders;
}
/// <summary>
/// Performs a switch to the slave state. Starts the communication endpoints, switches components to the slave state
/// and ensures that the current database is appropriate for this cluster. It also broadcasts the appropriate
/// Slave Is Available event
/// </summary>
/// <param name="haCommunicationLife"> The LifeSupport instance to register the network facilities required for
/// communication with the rest of the cluster </param>
/// <param name="me"> The URI this instance must bind to </param>
/// <param name="masterUri"> The URI of the master for which this instance must become slave to </param>
/// <param name="cancellationRequest"> A handle for gracefully aborting the switch </param>
/// <returns> The URI that was broadcasted as the slave endpoint or null if the task was cancelled </returns>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public java.net.URI switchToSlave(org.neo4j.kernel.lifecycle.LifeSupport haCommunicationLife, java.net.URI me, java.net.URI masterUri, org.neo4j.helpers.CancellationRequest cancellationRequest) throws Throwable
//JAVA TO C# CONVERTER NOTE: Members cannot have the same name as their enclosing type:
public virtual URI SwitchToSlaveConflict(LifeSupport haCommunicationLife, URI me, URI masterUri, CancellationRequest cancellationRequest)
{
URI slaveUri;
bool success = false;
Monitor.switchToSlaveStarted();
// Wait a short while for current transactions to stop first, just to be nice.
// We can't wait forever since switching to our designated role is quite important.
Clock clock = Clocks.systemClock();
long deadline = clock.millis() + Config.get(HaSettings.internal_state_switch_timeout).toMillis();
DatabaseTransactionStats transactionStats = _transactionStatsSupplier.get();
while (transactionStats.NumberOfActiveTransactions > 0 && clock.millis() < deadline)
{
parkNanos(MILLISECONDS.toNanos(10));
}
try
{
InstanceId myId = Config.get(ClusterSettings.server_id);
UserLog.info("ServerId %s, moving to slave for master %s", myId, masterUri);
Debug.Assert(masterUri != null); // since we are here it must already have been set from outside
_idGeneratorFactory.switchToSlave();
CopyStoreFromMasterIfNeeded(masterUri, me, cancellationRequest);
/*
* The following check is mandatory, since the store copy can be cancelled and if it was actually
* happening then we can't continue, as there is no store in place
*/
if (cancellationRequest.CancellationRequested())
{
MsgLog.info("Switch to slave cancelled during store copy if no local store is present.");
return(null);
}
/*
* We get here either with a fresh store from the master copy above so we need to
* start the ds or we already had a store, so we have already started the ds. Either way,
* make sure it's there.
*/
NeoStoreDataSource neoDataSource = _neoDataSourceSupplier.get();
neoDataSource.AfterModeSwitch();
StoreId myStoreId = neoDataSource.StoreId;
bool consistencyChecksExecutedSuccessfully = ExecuteConsistencyChecks(_transactionIdStoreSupplier.get(), masterUri, me, myStoreId, cancellationRequest);
if (!consistencyChecksExecutedSuccessfully)
{
MsgLog.info("Switch to slave cancelled due to consistency check failure.");
return(null);
}
if (cancellationRequest.CancellationRequested())
{
MsgLog.info("Switch to slave cancelled after consistency checks.");
return(null);
}
// no exception were thrown and we can proceed
slaveUri = StartHaCommunication(haCommunicationLife, neoDataSource, me, masterUri, myStoreId, cancellationRequest);
if (slaveUri == null)
{
MsgLog.info("Switch to slave unable to connect.");
return(null);
}
success = true;
UserLog.info("ServerId %s, successfully moved to slave for master %s", myId, masterUri);
}
finally
{
Monitor.switchToSlaveCompleted(success);
}
return(slaveUri);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void whenHAModeSwitcherSwitchesToSlaveTheOtherModeSwitcherDoNotGetTheOldMasterClient() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void WhenHAModeSwitcherSwitchesToSlaveTheOtherModeSwitcherDoNotGetTheOldMasterClient()
{
InstanceId me = new InstanceId(1);
StoreId storeId = newStoreIdForCurrentVersion();
HighAvailabilityMemberContext context = mock(typeof(HighAvailabilityMemberContext));
when(context.MyId).thenReturn(me);
AvailabilityGuard guard = mock(typeof(DatabaseAvailabilityGuard));
ObservedClusterMembers members = mock(typeof(ObservedClusterMembers));
ClusterMember masterMember = mock(typeof(ClusterMember));
when(masterMember.HARole).thenReturn("master");
when(masterMember.HasRole("master")).thenReturn(true);
when(masterMember.InstanceId).thenReturn(new InstanceId(2));
when(masterMember.StoreId).thenReturn(storeId);
ClusterMember self = new ClusterMember(me);
when(members.Members).thenReturn(Arrays.asList(self, masterMember));
when(members.CurrentMember).thenReturn(self);
DependencyResolver dependencyResolver = mock(typeof(DependencyResolver));
FileSystemAbstraction fs = mock(typeof(FileSystemAbstraction));
when(fs.FileExists(any(typeof(File)))).thenReturn(true);
when(dependencyResolver.ResolveDependency(typeof(FileSystemAbstraction))).thenReturn(fs);
when(dependencyResolver.ResolveDependency(typeof(Monitors))).thenReturn(new Monitors());
NeoStoreDataSource dataSource = mock(typeof(NeoStoreDataSource));
when(dataSource.DependencyResolver).thenReturn(dependencyResolver);
when(dataSource.StoreId).thenReturn(storeId);
when(dependencyResolver.ResolveDependency(typeof(NeoStoreDataSource))).thenReturn(dataSource);
when(dependencyResolver.ResolveDependency(typeof(TransactionIdStore))).thenReturn(new SimpleTransactionIdStore());
when(dependencyResolver.ResolveDependency(typeof(ObservedClusterMembers))).thenReturn(members);
UpdatePuller updatePuller = mock(typeof(UpdatePuller));
when(updatePuller.TryPullUpdates()).thenReturn(true);
when(dependencyResolver.ResolveDependency(typeof(UpdatePuller))).thenReturn(updatePuller);
ClusterMemberAvailability clusterMemberAvailability = mock(typeof(ClusterMemberAvailability));
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final TriggerableClusterMemberEvents events = new TriggerableClusterMemberEvents();
TriggerableClusterMemberEvents events = new TriggerableClusterMemberEvents();
Election election = mock(typeof(Election));
HighAvailabilityMemberStateMachine stateMachine = new HighAvailabilityMemberStateMachine(context, guard, members, events, election, NullLogProvider.Instance);
ClusterMembers clusterMembers = new ClusterMembers(members, stateMachine);
when(dependencyResolver.ResolveDependency(typeof(ClusterMembers))).thenReturn(clusterMembers);
stateMachine.Init();
stateMachine.Start();
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.ha.DelegateInvocationHandler<org.neo4j.kernel.ha.com.master.Master> handler = new org.neo4j.kernel.ha.DelegateInvocationHandler<>(org.neo4j.kernel.ha.com.master.Master.class);
DelegateInvocationHandler <Master> handler = new DelegateInvocationHandler <Master>(typeof(Master));
MasterClientResolver masterClientResolver = mock(typeof(MasterClientResolver));
MasterClient masterClient = mock(typeof(MasterClient));
when(masterClient.ProtocolVersion).thenReturn(MasterClient214.PROTOCOL_VERSION);
when(masterClient.Handshake(anyLong(), any(typeof(StoreId)))).thenReturn(new ResponseAnonymousInnerClass(this, storeId, mock(typeof(ResourceReleaser)), handler));
when(masterClient.ToString()).thenReturn("TheExpectedMasterClient!");
when(masterClientResolver.Instantiate(anyString(), anyInt(), anyString(), any(typeof(Monitors)), any(typeof(StoreId)), any(typeof(LifeSupport)))).thenReturn(masterClient);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.CountDownLatch latch = new java.util.concurrent.CountDownLatch(2);
System.Threading.CountdownEvent latch = new System.Threading.CountdownEvent(2);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.atomic.AtomicBoolean switchedSuccessfully = new java.util.concurrent.atomic.AtomicBoolean();
AtomicBoolean switchedSuccessfully = new AtomicBoolean();
SwitchToSlave.Monitor monitor = new MonitorAnonymousInnerClass(this, latch, switchedSuccessfully);
Config config = Config.defaults(ClusterSettings.server_id, me.ToString());
DatabaseTransactionStats transactionCounters = mock(typeof(DatabaseTransactionStats));
when(transactionCounters.NumberOfActiveTransactions).thenReturn(0L);
PageCache pageCacheMock = mock(typeof(PageCache));
PagedFile pagedFileMock = mock(typeof(PagedFile));
when(pagedFileMock.LastPageId).thenReturn(1L);
when(pageCacheMock.Map(any(typeof(File)), anyInt())).thenReturn(pagedFileMock);
TransactionIdStore transactionIdStoreMock = mock(typeof(TransactionIdStore));
when(transactionIdStoreMock.LastCommittedTransaction).thenReturn(new TransactionId(0, 0, 0));
SwitchToSlaveCopyThenBranch switchToSlave = new SwitchToSlaveCopyThenBranch(DatabaseLayout.of(new File("")), NullLogService.Instance, mock(typeof(FileSystemAbstraction)), config, mock(typeof(HaIdGeneratorFactory)), handler, mock(typeof(ClusterMemberAvailability)), mock(typeof(RequestContextFactory)), mock(typeof(PullerFactory), RETURNS_MOCKS), Iterables.empty(), masterClientResolver, monitor, new Org.Neo4j.com.storecopy.StoreCopyClientMonitor_Adapter(), Suppliers.singleton(dataSource), Suppliers.singleton(transactionIdStoreMock), slave =>
{
SlaveServer mock = mock(typeof(SlaveServer));
when(mock.SocketAddress).thenReturn(new InetSocketAddress("localhost", 123));
return(mock);
}, updatePuller, pageCacheMock, mock(typeof(Monitors)), () => transactionCounters);
ComponentSwitcherContainer switcherContainer = new ComponentSwitcherContainer();
HighAvailabilityModeSwitcher haModeSwitcher = new HighAvailabilityModeSwitcher(switchToSlave, mock(typeof(SwitchToMaster)), election, clusterMemberAvailability, mock(typeof(ClusterClient)), storeSupplierMock(), me, switcherContainer, NeoStoreDataSourceSupplierMock(), NullLogService.Instance);
haModeSwitcher.Init();
haModeSwitcher.Start();
haModeSwitcher.ListeningAt(URI.create("http://localhost:12345"));
stateMachine.AddHighAvailabilityMemberListener(haModeSwitcher);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.atomic.AtomicReference<org.neo4j.kernel.ha.com.master.Master> ref = new java.util.concurrent.atomic.AtomicReference<>(null);
AtomicReference <Master> @ref = new AtomicReference <Master>(null);
//noinspection unchecked
AbstractComponentSwitcher <object> otherModeSwitcher = new AbstractComponentSwitcherAnonymousInnerClass(this, mock(typeof(DelegateInvocationHandler)), handler, latch, @ref);
switcherContainer.Add(otherModeSwitcher);
// When
events.SwitchToSlave(me);
// Then
latch.await();
assertTrue("mode switch failed", switchedSuccessfully.get());
Master actual = @ref.get();
// let's test the toString()s since there are too many wrappers of proxies
assertEquals(masterClient.ToString(), actual.ToString());
stateMachine.Stop();
stateMachine.Shutdown();
haModeSwitcher.Stop();
haModeSwitcher.Shutdown();
}
