FluentStateMachine

Finite-state machine (FSM) with a fluent interface and mediators compatibility.

Example

enumStates{S1,S2,S3}enumEvents{E1,E2,E3}

varfsm=newFsmBuilder<States,Events>(States.S1).OnEnter(x =>Console.WriteLine($"State change to {x.State} from {x.PrevState}")).State(States.S1).On(Events.E1).Execute(x =>{/* some operations */return"some results";}).On(Events.E2).JumpTo(States.S2).State(States.S2).On(Events.E3).Enable(x =>/* some conditions */true).JumpTo(States.S3).State(States.S3).OnEnter(x =>Console.WriteLine($"Enter to final state")).Build();Console.WriteLine(fsm.Trigger(Events.E1));fsm.Trigger(Event.E2);fsm.Trigger(Event.E3);// Console output:// some results// State change to S2 from S1// State change to S3 from S2// Enter to final state

ReadmeExample1.cs

Example with type-based events

classEvent1:IFsmEvent<string>{publicintSomeProp{get;set;}}classEvent2:IFsmEvent;class Event3 :IFsmEvent;

varfsm=newFsmBuilder<States,Type>(States.S1).OnEnter(x =>Console.WriteLine($"State change to {x.State} from {x.PrevState}")).State(States.S1).On<Event1,string>().Execute(x =>$"{x.Data.SomeProp} results").On<Event2>().JumpTo(States.S2).State(States.S2).On<Event3>().JumpTo(States.S3).State(States.S3).OnEnter(x =>Console.WriteLine($"Enter to final state")).Build();Console.WriteLine(fsm.Trigger(newEvent1{SomeProp=123}));fsm.Trigger(newEvent2());fsm.Trigger(newEvent3());// Console output:// 123 results// State change to S2 from S1// State change to S3 from S2// Enter to final state

ReadmeExample2.cs

Example of use for workflows

Using with MediatR