private VNodeFSM CreateFSM()
{
var stm = new VNodeFSMBuilder(() => _state)
.InAnyState()
.When <SystemMessage.SystemInit>().Do(Handle)
.When <SystemMessage.SystemStart>().Do(Handle)
.When <SystemMessage.BecomeShuttingDown>().Do(Handle)
.When <SystemMessage.BecomeWorking>().Do(Handle)
.When <SystemMessage.BecomeShutdown>().Do(Handle)
.InState(VNodeState.Initializing)
.When <SystemMessage.StorageReaderInitializationDone>().Do(Handle)
.When <SystemMessage.StorageWriterInitializationDone>().Do(Handle)
.When <ClientMessage.WriteMessage>().Ignore()
.When <ClientMessage.ReadMessage>().Ignore()
.WhenOther().Do(m => _outputBus.Publish(m))
.InState(VNodeState.Master)
.When <ClientMessage.CreateStream>().Do(Handle)
.When <ClientMessage.WriteEvents>().Do(Handle)
.When <ClientMessage.TransactionStart>().Do(Handle)
.When <ClientMessage.TransactionWrite>().Do(Handle)
.When <ClientMessage.TransactionCommit>().Do(Handle)
.When <ClientMessage.DeleteStream>().Do(Handle)
.WhenOther().Do(m => _outputBus.Publish(m))
.InStates(VNodeState.Initializing, VNodeState.Master)
.When <ClientMessage.RequestShutdown>().Do(Handle)
.InStates(VNodeState.ShuttingDown, VNodeState.Shutdown)
.When <SystemMessage.ServiceShutdown>().Do(Handle)
// TODO AN reply with correct status code, that system is shutting down (or already shut down)
.When <ClientMessage.WriteEvents>().Ignore()
.When <ClientMessage.TransactionStart>().Ignore()
.When <ClientMessage.TransactionWrite>().Ignore()
.When <ClientMessage.TransactionCommit>().Ignore()
.When <ClientMessage.DeleteStream>().Ignore()
.When <ClientMessage.ReadEvent>().Ignore()
.When <ClientMessage.ReadEventsBackwards>().Ignore()
.When <ClientMessage.ReadEventsForward>().Ignore()
.When <ClientMessage.ReadEventsFromTF>().Ignore()
.When <ClientMessage.ListStreams>().Ignore()
.WhenOther().Do(m => _outputBus.Publish(m))
.InState(VNodeState.ShuttingDown)
.When <SystemMessage.ShutdownTimeout>().Do(Handle)
.Build();
return(stm);
}
private VNodeFSM CreateFSM()
{
var stm = new VNodeFSMBuilder(() => _state)
.InAnyState()
.When <SystemMessage.StateChangeMessage>()
.Do(m => Application.Exit(ExitCode.Error, string.Format("{0} message was unhandled in {1}.", m.GetType().Name, GetType().Name)))
.When <UserManagementMessage.UserManagementServiceInitialized>().Do(Handle)
.When <SystemMessage.SubSystemInitialized>().Do(Handle)
.When <SystemMessage.SystemCoreReady>().Do(Handle)
.InState(VNodeState.Initializing)
.When <SystemMessage.SystemInit>().Do(Handle)
.When <SystemMessage.SystemStart>().Do(Handle)
.When <SystemMessage.ServiceInitialized>().Do(Handle)
.When <ClientMessage.ScavengeDatabase>().Ignore()
.WhenOther().ForwardTo(_outputBus)
.InState(VNodeState.Unknown)
.WhenOther().ForwardTo(_outputBus)
.InStates(VNodeState.Initializing, VNodeState.Master, VNodeState.PreMaster,
VNodeState.PreReplica, VNodeState.CatchingUp, VNodeState.Clone, VNodeState.Slave)
.When <SystemMessage.BecomeUnknown>().Do(Handle)
.InAllStatesExcept(VNodeState.Unknown,
VNodeState.PreReplica, VNodeState.CatchingUp, VNodeState.Clone, VNodeState.Slave,
VNodeState.Master)
.When <ClientMessage.ReadRequestMessage>().Do(msg => DenyRequestBecauseNotReady(msg.Envelope, msg.CorrelationId))
.InAllStatesExcept(VNodeState.Master,
VNodeState.PreReplica, VNodeState.CatchingUp, VNodeState.Clone, VNodeState.Slave)
.When <ClientMessage.WriteRequestMessage>().Do(msg => DenyRequestBecauseNotReady(msg.Envelope, msg.CorrelationId))
.InState(VNodeState.Master)
.When <ClientMessage.ReadEvent>().ForwardTo(_outputBus)
.When <ClientMessage.ReadStreamEventsForward>().ForwardTo(_outputBus)
.When <ClientMessage.ReadStreamEventsBackward>().ForwardTo(_outputBus)
.When <ClientMessage.ReadAllEventsForward>().ForwardTo(_outputBus)
.When <ClientMessage.ReadAllEventsBackward>().ForwardTo(_outputBus)
.When <ClientMessage.WriteEvents>().ForwardTo(_outputBus)
.When <ClientMessage.TransactionStart>().ForwardTo(_outputBus)
.When <ClientMessage.TransactionWrite>().ForwardTo(_outputBus)
.When <ClientMessage.TransactionCommit>().ForwardTo(_outputBus)
.When <ClientMessage.DeleteStream>().ForwardTo(_outputBus)
.When <ClientMessage.CreatePersistentSubscription>().ForwardTo(_outputBus)
.When <ClientMessage.ConnectToPersistentSubscription>().ForwardTo(_outputBus)
.When <ClientMessage.UpdatePersistentSubscription>().ForwardTo(_outputBus)
.When <ClientMessage.DeletePersistentSubscription>().ForwardTo(_outputBus)
.InStates(VNodeState.PreReplica, VNodeState.CatchingUp, VNodeState.Clone, VNodeState.Slave,
VNodeState.Unknown)
.When <ClientMessage.ReadEvent>().Do(HandleAsNonMaster)
.When <ClientMessage.ReadStreamEventsForward>().Do(HandleAsNonMaster)
.When <ClientMessage.ReadStreamEventsBackward>().Do(HandleAsNonMaster)
.When <ClientMessage.ReadAllEventsForward>().Do(HandleAsNonMaster)
.When <ClientMessage.ReadAllEventsBackward>().Do(HandleAsNonMaster)
.When <ClientMessage.CreatePersistentSubscription>().Do(HandleAsNonMaster)
.When <ClientMessage.ConnectToPersistentSubscription>().Do(HandleAsNonMaster)
.When <ClientMessage.UpdatePersistentSubscription>().Do(HandleAsNonMaster)
.When <ClientMessage.DeletePersistentSubscription>().Do(HandleAsNonMaster)
.InStates(VNodeState.PreReplica, VNodeState.CatchingUp, VNodeState.Clone, VNodeState.Slave)
.When <ClientMessage.WriteEvents>().Do(HandleAsNonMaster)
.When <ClientMessage.TransactionStart>().Do(HandleAsNonMaster)
.When <ClientMessage.TransactionWrite>().Do(HandleAsNonMaster)
.When <ClientMessage.TransactionCommit>().Do(HandleAsNonMaster)
.When <ClientMessage.DeleteStream>().Do(HandleAsNonMaster)
.InAnyState()
.When <ClientMessage.NotHandled>().ForwardTo(_outputBus)
.When <ClientMessage.ReadEventCompleted>().ForwardTo(_outputBus)
.When <ClientMessage.ReadStreamEventsForwardCompleted>().ForwardTo(_outputBus)
.When <ClientMessage.ReadStreamEventsBackwardCompleted>().ForwardTo(_outputBus)
.When <ClientMessage.ReadAllEventsForwardCompleted>().ForwardTo(_outputBus)
.When <ClientMessage.ReadAllEventsBackwardCompleted>().ForwardTo(_outputBus)
.When <ClientMessage.WriteEventsCompleted>().ForwardTo(_outputBus)
.When <ClientMessage.TransactionStartCompleted>().ForwardTo(_outputBus)
.When <ClientMessage.TransactionWriteCompleted>().ForwardTo(_outputBus)
.When <ClientMessage.TransactionCommitCompleted>().ForwardTo(_outputBus)
.When <ClientMessage.DeleteStreamCompleted>().ForwardTo(_outputBus)
.InAllStatesExcept(VNodeState.Initializing, VNodeState.ShuttingDown, VNodeState.Shutdown)
.When <ElectionMessage.ElectionsDone>().Do(Handle)
.InStates(VNodeState.Unknown,
VNodeState.PreReplica, VNodeState.CatchingUp, VNodeState.Clone, VNodeState.Slave,
VNodeState.PreMaster, VNodeState.Master)
.When <SystemMessage.BecomePreReplica>().Do(Handle)
.When <SystemMessage.BecomePreMaster>().Do(Handle)
.InStates(VNodeState.PreReplica, VNodeState.CatchingUp, VNodeState.Clone, VNodeState.Slave)
.When <GossipMessage.GossipUpdated>().Do(HandleAsNonMaster)
.When <SystemMessage.VNodeConnectionLost>().Do(Handle)
.InAllStatesExcept(VNodeState.PreReplica, VNodeState.PreMaster)
.When <SystemMessage.WaitForChaserToCatchUp>().Ignore()
.When <SystemMessage.ChaserCaughtUp>().Ignore()
.InState(VNodeState.PreReplica)
.When <SystemMessage.BecomeCatchingUp>().Do(Handle)
.When <SystemMessage.WaitForChaserToCatchUp>().Do(Handle)
.When <SystemMessage.ChaserCaughtUp>().Do(HandleAsPreReplica)
.When <ReplicationMessage.ReconnectToMaster>().Do(Handle)
.When <ReplicationMessage.SubscribeToMaster>().Do(Handle)
.When <ReplicationMessage.ReplicaSubscriptionRetry>().Do(Handle)
.When <ReplicationMessage.ReplicaSubscribed>().Do(Handle)
.WhenOther().ForwardTo(_outputBus)
.InAllStatesExcept(VNodeState.PreReplica)
.When <ReplicationMessage.ReconnectToMaster>().Ignore()
.When <ReplicationMessage.SubscribeToMaster>().Ignore()
.When <ReplicationMessage.ReplicaSubscriptionRetry>().Ignore()
.When <ReplicationMessage.ReplicaSubscribed>().Ignore()
.InStates(VNodeState.CatchingUp, VNodeState.Clone, VNodeState.Slave)
.When <ReplicationMessage.CreateChunk>().Do(ForwardReplicationMessage)
.When <ReplicationMessage.RawChunkBulk>().Do(ForwardReplicationMessage)
.When <ReplicationMessage.DataChunkBulk>().Do(ForwardReplicationMessage)
.When <ReplicationMessage.AckLogPosition>().ForwardTo(_outputBus)
.WhenOther().ForwardTo(_outputBus)
.InAllStatesExcept(VNodeState.CatchingUp, VNodeState.Clone, VNodeState.Slave)
.When <ReplicationMessage.CreateChunk>().Ignore()
.When <ReplicationMessage.RawChunkBulk>().Ignore()
.When <ReplicationMessage.DataChunkBulk>().Ignore()
.When <ReplicationMessage.AckLogPosition>().Ignore()
.InState(VNodeState.CatchingUp)
.When <ReplicationMessage.CloneAssignment>().Do(Handle)
.When <ReplicationMessage.SlaveAssignment>().Do(Handle)
.When <SystemMessage.BecomeClone>().Do(Handle)
.When <SystemMessage.BecomeSlave>().Do(Handle)
.InState(VNodeState.Clone)
.When <ReplicationMessage.SlaveAssignment>().Do(Handle)
.When <SystemMessage.BecomeSlave>().Do(Handle)
.InState(VNodeState.Slave)
.When <ReplicationMessage.CloneAssignment>().Do(Handle)
.When <SystemMessage.BecomeClone>().Do(Handle)
.InStates(VNodeState.PreMaster, VNodeState.Master)
.When <GossipMessage.GossipUpdated>().Do(HandleAsMaster)
.When <ReplicationMessage.ReplicaSubscriptionRequest>().ForwardTo(_outputBus)
.When <ReplicationMessage.ReplicaLogPositionAck>().ForwardTo(_outputBus)
.InAllStatesExcept(VNodeState.PreMaster, VNodeState.Master)
.When <ReplicationMessage.ReplicaSubscriptionRequest>().Ignore()
.InState(VNodeState.PreMaster)
.When <SystemMessage.BecomeMaster>().Do(Handle)
.When <SystemMessage.WaitForChaserToCatchUp>().Do(Handle)
.When <SystemMessage.ChaserCaughtUp>().Do(HandleAsPreMaster)
.WhenOther().ForwardTo(_outputBus)
.InState(VNodeState.Master)
.When <SystemMessage.NoQuorumMessage>().Do(Handle)
.When <StorageMessage.WritePrepares>().ForwardTo(_outputBus)
.When <StorageMessage.WriteDelete>().ForwardTo(_outputBus)
.When <StorageMessage.WriteTransactionStart>().ForwardTo(_outputBus)
.When <StorageMessage.WriteTransactionData>().ForwardTo(_outputBus)
.When <StorageMessage.WriteTransactionPrepare>().ForwardTo(_outputBus)
.When <StorageMessage.WriteCommit>().ForwardTo(_outputBus)
.WhenOther().ForwardTo(_outputBus)
.InAllStatesExcept(VNodeState.Master)
.When <SystemMessage.NoQuorumMessage>().Ignore()
.When <StorageMessage.WritePrepares>().Ignore()
.When <StorageMessage.WriteDelete>().Ignore()
.When <StorageMessage.WriteTransactionStart>().Ignore()
.When <StorageMessage.WriteTransactionData>().Ignore()
.When <StorageMessage.WriteTransactionPrepare>().Ignore()
.When <StorageMessage.WriteCommit>().Ignore()
.InAllStatesExcept(VNodeState.ShuttingDown, VNodeState.Shutdown)
.When <ClientMessage.RequestShutdown>().Do(Handle)
.When <SystemMessage.BecomeShuttingDown>().Do(Handle)
.InState(VNodeState.ShuttingDown)
.When <SystemMessage.BecomeShutdown>().Do(Handle)
.When <SystemMessage.ShutdownTimeout>().Do(Handle)
.InStates(VNodeState.ShuttingDown, VNodeState.Shutdown)
.When <SystemMessage.ServiceShutdown>().Do(Handle)
.WhenOther().ForwardTo(_outputBus)
.Build();
return(stm);
}
public VNodeFSMStatesDefinition(VNodeFSMBuilder fsm, params VNodeState[] states)
{
FSM = fsm;
States = states;
}
private VNodeFSM CreateFSM()
{
var stm = new VNodeFSMBuilder(() => _state)
.InAnyState()
.When <SystemMessage.StateChangeMessage>()
.Do(m => Application.Exit(ExitCode.Error, string.Format("{0} message was unhandled in {1}.", m.GetType().Name, GetType().Name)))
.InState(VNodeState.Initializing)
.When <SystemMessage.SystemInit>().Do(Handle)
.When <SystemMessage.SystemStart>().Do(Handle)
.When <SystemMessage.BecomePreMaster>().Do(Handle)
.When <SystemMessage.StorageReaderInitializationDone>().Do(Handle)
.When <SystemMessage.StorageWriterInitializationDone>().Do(Handle)
.WhenOther().ForwardTo(_outputBus)
.InStates(VNodeState.Initializing, VNodeState.ShuttingDown, VNodeState.Shutdown)
.When <ClientMessage.ReadRequestMessage>().Do(msg => DenyRequestBecauseNotReady(msg.Envelope, msg.CorrelationId))
.InAllStatesExcept(VNodeState.Initializing, VNodeState.ShuttingDown, VNodeState.Shutdown)
.When <ClientMessage.ReadRequestMessage>().ForwardTo(_outputBus)
.InAllStatesExcept(VNodeState.PreMaster)
.When <SystemMessage.WaitForChaserToCatchUp>().Ignore()
.When <SystemMessage.ChaserCaughtUp>().Ignore()
.InState(VNodeState.PreMaster)
.When <SystemMessage.BecomeMaster>().Do(Handle)
.When <SystemMessage.WaitForChaserToCatchUp>().ForwardTo(_outputBus)
.When <SystemMessage.ChaserCaughtUp>().Do(Handle)
.WhenOther().ForwardTo(_outputBus)
.InState(VNodeState.Master)
.When <ClientMessage.WriteEvents>().ForwardTo(_outputBus)
.When <ClientMessage.TransactionStart>().ForwardTo(_outputBus)
.When <ClientMessage.TransactionWrite>().ForwardTo(_outputBus)
.When <ClientMessage.TransactionCommit>().ForwardTo(_outputBus)
.When <ClientMessage.DeleteStream>().ForwardTo(_outputBus)
.When <StorageMessage.WritePrepares>().ForwardTo(_outputBus)
.When <StorageMessage.WriteDelete>().ForwardTo(_outputBus)
.When <StorageMessage.WriteTransactionStart>().ForwardTo(_outputBus)
.When <StorageMessage.WriteTransactionData>().ForwardTo(_outputBus)
.When <StorageMessage.WriteTransactionPrepare>().ForwardTo(_outputBus)
.When <StorageMessage.WriteCommit>().ForwardTo(_outputBus)
.WhenOther().ForwardTo(_outputBus)
.InAllStatesExcept(VNodeState.Master)
.When <ClientMessage.WriteRequestMessage>().Do(msg => DenyRequestBecauseNotReady(msg.Envelope, msg.CorrelationId))
.When <StorageMessage.WritePrepares>().Ignore()
.When <StorageMessage.WriteDelete>().Ignore()
.When <StorageMessage.WriteTransactionStart>().Ignore()
.When <StorageMessage.WriteTransactionData>().Ignore()
.When <StorageMessage.WriteTransactionPrepare>().Ignore()
.When <StorageMessage.WriteCommit>().Ignore()
.InAllStatesExcept(VNodeState.ShuttingDown, VNodeState.Shutdown)
.When <ClientMessage.RequestShutdown>().Do(Handle)
.When <SystemMessage.BecomeShuttingDown>().Do(Handle)
.InState(VNodeState.ShuttingDown)
.When <SystemMessage.BecomeShutdown>().Do(Handle)
.When <SystemMessage.ShutdownTimeout>().Do(Handle)
.InStates(VNodeState.ShuttingDown, VNodeState.Shutdown)
.When <SystemMessage.ServiceShutdown>().Do(Handle)
.WhenOther().ForwardTo(_outputBus)
.Build();
return(stm);
}
