Example #1
0
 public HighAvailabilityMemberStateMachine(HighAvailabilityMemberContext context, AvailabilityGuard databaseAvailabilityGuard, ObservedClusterMembers members, ClusterMemberEvents events, Election election, LogProvider logProvider)
 {
     this._context = context;
     this._databaseAvailabilityGuard = databaseAvailabilityGuard;
     this._members  = members;
     this._events   = events;
     this._election = election;
     this._log      = logProvider.getLog(this.GetType());
     _state         = HighAvailabilityMemberState.Pending;
 }
Example #2
0
 public abstract HighAvailabilityMemberState slaveIsAvailable(HighAvailabilityMemberContext context, Org.Neo4j.cluster.InstanceId slaveId, java.net.URI slaveUri);
Example #3
0
 public abstract HighAvailabilityMemberState masterIsAvailable(HighAvailabilityMemberContext context, Org.Neo4j.cluster.InstanceId masterId, java.net.URI masterHaURI);
Example #4
0
 public abstract HighAvailabilityMemberState masterIsElected(HighAvailabilityMemberContext context, Org.Neo4j.cluster.InstanceId masterId);
Example #5
0
 private HighAvailabilityMemberStateMachine BuildMockedStateMachine(HighAvailabilityMemberContext context, ClusterMemberEvents events, Election election)
 {
     return((new HighAvailabilityMemberStateMachineTest.StateMachineBuilder()).WithContext(context).withEvents(events).withElection(election).build());
 }
Example #6
0
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Before public void setup()
        public virtual void Setup()
        {
            _myId    = new InstanceId(1);
            _context = mock(typeof(HighAvailabilityMemberContext));
            when(_context.MyId).thenReturn(_myId);
        }
Example #7
0
 internal virtual StateMachineBuilder WithContext(HighAvailabilityMemberContext context)
 {
     this.Context = context;
     return(this);
 }
Example #8
0
 private HighAvailabilityMemberStateMachine BuildMockedStateMachine(HighAvailabilityMemberContext context, ClusterMemberEvents events, ObservedClusterMembers clusterMembers, AvailabilityGuard guard)
 {
     return((new StateMachineBuilder()).WithContext(context).withEvents(events).withClusterMembers(clusterMembers).withGuard(guard).build());
 }
Example #9
0
//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();
        }