StateMesh.Core 1.0.0

.NET Core 3.1 This package targets .NET Core 3.1. The package is compatible with this framework or higher. 
dotnet add package StateMesh.Core --version 1.0.0
NuGet\Install-Package StateMesh.Core -Version 1.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="StateMesh.Core" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add StateMesh.Core --version 1.0.0
#r "nuget: StateMesh.Core, 1.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
// Install StateMesh.Core as a Cake Addin
#addin nuget:?package=StateMesh.Core&version=1.0.0

// Install StateMesh.Core as a Cake Tool
#tool nuget:?package=StateMesh.Core&version=1.0.0

Description

StateMesh is a workflow engine. It translates the workflow between logic and JSON description. Anyone uses StateMesh could generate their workflow definition from JSON and process it anywhere. Here's a sample.

SAMPLE target flow

ws1---l12---->ws2 ----l23---->ws3----l34----ws4
  ↑                            |                        
  --------l31------------------

alternate text is missing from this package README image

Main Class

using StateMesh.Core.Engine;
using StateMesh.Core.Models;
using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;

namespace StateMesh.Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            WorkflowDefinition definition = new WorkflowDefinition();
            definition.DefinitionId = "single-sample";
            definition.Description = "my test sample for workflow engine";
            definition.Name = "testsample";
            WorkflowState ws1 = new WorkflowState() 
            {
                 Id = "ws1",
                 Name = "ws1name",
                 Description = "ws1name"
            };
            WorkflowState ws2 = new WorkflowState()
            {
                Id = "ws2",
                Name = "ws2name",
                Description = "ws2name"
            };
            WorkflowState ws3 = new WorkflowState()
            {
                Id = "ws3",
                Name = "ws3name",
                Description = "ws3name"
            };
            WorkflowState ws4 = new WorkflowState()
            {
                Id = "ws4",
                Name = "finished",
                Description = "ws4name"
            };
            definition.States = new System.Collections.Generic.Dictionary<string, WorkflowState>();
            definition.States.Add(ws1.Id, ws1);
            definition.States.Add(ws2.Id, ws2);
            definition.States.Add(ws3.Id, ws3);
            definition.States.Add(ws4.Id, ws4);
            WorkflowLine l12 = new WorkflowLine() 
            {
                 Id = "l12",
                 From = ws1.Id,
                 To = ws2.Id,
                 DoActions = new System.Collections.Generic.List<WorkflowAction>()
            };
            l12.DoActions.Add(new WorkflowAction() 
            {
                 Id = "internal",
                 InvokeName = "ReadName",
                 PackageId = "SELF",
                 Namespace = "StateMesh.Sample.TestAction",
                 Parameters = new System.Collections.Generic.List<WorkflowActionParameter>() 
                 {
                     new WorkflowActionParameter()
                     {
                         Id = "testparameter1",
                         ClassType = typeof(string).ToString(),
                         IsInput = false,
                         MappedTo = "myname",
                         ParameterName = "myname"
                     },
                     new WorkflowActionParameter()
                     {
                         Id = "testparameter2",
                         ClassType = typeof(string).ToString(),
                         IsInput = true,
                         MappedTo = "filePath",
                         ParameterName = "filePath"
                     }
                 }
            });
            WorkflowLine l23 = new WorkflowLine()
            {
                Id = "l23",
                From = ws2.Id,
                To = ws3.Id,
                DoActions = new System.Collections.Generic.List<WorkflowAction>(),
                Condition = new WorkflowConditionGroup()
            };
            l23.Condition.Id = "cc";
            l23.Condition.Relationship = "OR";
            l23.PreDoActions = new List<WorkflowAction>() 
            {
                new WorkflowAction()
            {
                 Id = "internal",
                 InvokeName = "ReadName",
                 PackageId = "SELF",
                 Namespace = "StateMesh.Sample.TestAction",
                 Parameters = new System.Collections.Generic.List<WorkflowActionParameter>()
                 {
                     new WorkflowActionParameter()
                     {
                         Id = "testparameter1",
                         ClassType = typeof(string).ToString(),
                         IsInput = false,
                         MappedTo = "myname",
                         ParameterName = "myname"
                     },
                     new WorkflowActionParameter()
                     {
                         Id = "testparameter2",
                         ClassType = typeof(string).ToString(),
                         IsInput = true,
                         MappedTo = "filePath",
                         ParameterName = "filePath"
                     }
                 }
            }
            };
            l23.Condition.Conditions = new System.Collections.Generic.List<WorkflowCondition>() 
            {
                 new WorkflowCondition()
                 {
                     Id = "cc1",
                     Action = new WorkflowAction()
                     {
                        Id = "internal",
                        InvokeName = "IsTilerphyApprovaled",
                        PackageId = "SELF",
                        Namespace = "StateMesh.Sample.TestAction",
                     },
                     Assertions = new System.Collections.Generic.List<WorkflowAssertion>()
                     {
                        new WorkflowAssertion()
                        {
                             Id = "testassert",
                             MappedTo = "IsTilerphyApprovaled.Result",
                             Operation = WorkflowAssertion.String_Equals,
                             TypeAssertion = typeof(bool).ToString(),
                             ValueAssertion = true
                        }
                     }
                 }
            };
            l23.DoActions.Add(new WorkflowAction()
            {
                Id = "internal",
                InvokeName = "HelloWorld",
                PackageId = "SELF",
                Namespace = "StateMesh.Sample.TestAction"
            });
            WorkflowLine l31 = new WorkflowLine()
            {
                Id = "l31",
                From = ws3.Id,
                To = ws1.Id,
                DoActions = new System.Collections.Generic.List<WorkflowAction>()
            };
            WorkflowLine l34 = new WorkflowLine() 
            {
                Id = "l34",
                From = ws3.Id,
                To = ws4.Id,
                DoActions = new System.Collections.Generic.List<WorkflowAction>()
            };
            definition.Lines = new System.Collections.Generic.Dictionary<string, WorkflowLine>();
            definition.Lines.Add(l12.Id, l12);
            definition.Lines.Add(l23.Id, l23);
            definition.Lines.Add(l34.Id, l34);
            definition.Lines.Add(l31.Id,l31);
            definition.HeadState = ws1.Id;
            definition.TailState = ws4.Id;
            WorkflowPlayer wp = new WorkflowPlayer();
            Dictionary<string, Workflow> workflowCache = new Dictionary<string, Workflow>();
            IntegratingSpigot.CreateWorkflow = new Func<Workflow, int>((w)=> { workflowCache.Add(w.Id, w); return 1; });
            IntegratingSpigot.CreateWorkflowJsonShotcut = new Action<string>((s)=> { Console.WriteLine(s); });
            IntegratingSpigot.GetAllWorkflowsWithAutomaticalLines = new Func<List<Workflow>>(()=> { return null; });
            IntegratingSpigot.GetAssemblyBytesByPackageId = new Func<string, byte[]>((s)=> { return null; });
            IntegratingSpigot.UpdateWorkflow = new Func<Workflow, int>((w)=> { workflowCache[w.Id] = w; return 1; });
            IntegratingSpigot.UseDefaultTimer = false;
            wp.Start();
            Workflow testone = wp.CreateNewWorkflowInstanceFromDefinition(definition);
            testone.Context.Add("filePath", @"C:\Users\zbsun\Desktop\approval.txt");
            while (true) 
            {
                Console.WriteLine("Exported json: {0}",testone.Export());
                if (testone.Status == WorkflowPlayer.WorkflowStatus.Finished 
                    || testone.Status == WorkflowPlayer.WorkflowStatus.Aborted
                    || testone.TailState == testone.CurrentStateId) 
                {
                    break;
                }
                var lines = testone.GetStepableLines();
                Console.WriteLine("These line can go: {0}", string.Join(",", lines.Select(a=> a.Id).ToArray()));
                Console.Write("Type something, entry to next step.");
                string l = Console.ReadLine();
                if (l == "q") 
                {
                    testone.Status = WorkflowPlayer.WorkflowStatus.Finished;
                    break;
                }
                
                if (l == "") continue;
                if (l.StartsWith("load", StringComparison.OrdinalIgnoreCase)) 
                {
                    string replaceId = testone.Id;
                    testone = Workflow.Parse(System.IO.File.ReadAllText(l.Substring(5)));
                    testone.Id = replaceId;
                    continue;
                }
                if (testone.Lines.ContainsKey(l))
                {
                    var result = wp.ProcessWorkflowLine(testone, testone.Lines[l]);
                    Console.WriteLine(string.Join(",", result.Reasons.ToArray()));
                }
                else 
                {
                    Console.WriteLine("{0} is not an available line.", l);
                }
            }
            Console.Write("Workflow finished at state {0}", testone.CurrentStateId);
        }
    }
}

TestAction

using StateMesh.Core.Models;
using System;
using System.Collections.Generic;
using System.Text;

namespace StateMesh.Sample
{
    public class TestAction
    {
        public string OwnerId { get; set; }
        public void ReadName(Workflow workflow, string filePath) 
        {
            if (workflow.Context.ContainsKey("myname"))
            {
                workflow.Context["myname"] = System.IO.File.ReadAllText(filePath);
            }
            else 
            {
                workflow.Context.Add("myname", System.IO.File.ReadAllText(filePath));
            }
            
        }
        public void IsTilerphyApprovaled(Workflow workflow) 
        {
            if (workflow.Context.ContainsKey("IsTilerphyApprovaled.Result"))
            {
                workflow.Context["IsTilerphyApprovaled.Result"] = workflow.Context["myname"].ToString() == "tilerphy";
            }
            else
            {
                workflow.Context.Add("IsTilerphyApprovaled.Result", workflow.Context["myname"].ToString() == "tilerphy");
            }
        }
        public void HelloWorld(Workflow workflow) 
        {
            Console.WriteLine("{0} Complete.", this.OwnerId);
        }
    }
}

Exported Workflow Instance (importable as a Workflow)

{
	"Id": "346ca951-4641-42da-9142-879f12f896fc",
	"Context": {
		"filePath": "C:\\Users\\zbsun\\Desktop\\approval.txt",
		"_.linetrace": [{
			"Key": "l12",
			"Value": 1644809904
		}, {
			"Key": "l23",
			"Value": 1644809906
		}, {
			"Key": "l12",
			"Value": 1644809908
		}, {
			"Key": "l12",
			"Value": 1644809909
		}, {
			"Key": "l12",
			"Value": 1644809910
		}, {
			"Key": "l31",
			"Value": 1644809913
		}],
		"myname": "tilerphy",
		"_.actiontrace": [{
			"Key": true,
			"Value": "internal"
		}, {
			"Key": true,
			"Value": "internal"
		}, {
			"Key": true,
			"Value": "internal"
		}, {
			"Key": true,
			"Value": "internal"
		}, {
			"Key": true,
			"Value": "internal"
		}, {
			"Key": true,
			"Value": "internal"
		}],
		"_.linetrace.transition": [{
			"Key": "l12",
			"Value": 1644809904
		}, {
			"Key": "l23",
			"Value": 1644809906
		}, {
			"Key": "l31",
			"Value": 1644809913
		}],
		"IsTilerphyApprovaled.Result": true
	},
	"__Context_Value_Types": {
		"filePath": "System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e",
		"_.linetrace": "System.Collections.Generic.List`1[[System.Collections.Generic.KeyValuePair`2[[System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Int64, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e",
		"myname": "System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e",
		"_.actiontrace": "System.Collections.Generic.List`1[[System.Collections.Generic.KeyValuePair`2[[System.Boolean, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e",
		"_.linetrace.transition": "System.Collections.Generic.List`1[[System.Collections.Generic.KeyValuePair`2[[System.String, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.Int64, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]], System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e",
		"IsTilerphyApprovaled.Result": "System.Boolean, System.Private.CoreLib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e"
	},
	"CurrentStateId": "ws1",
	"LastChangedTime": 637804067137554237,
	"LastOperator": "SYSTEM",
	"LastLineId": "l31",
	"Status": "Pending",
	"DefinitionId": "single-sample",
	"HeadState": "ws1",
	"TailState": "ws4",
	"States": {
		"ws1": {
			"Id": "ws1",
			"Name": "ws1name",
			"Description": "ws1name",
			"UIStyle": null
		},
		"ws2": {
			"Id": "ws2",
			"Name": "ws2name",
			"Description": "ws2name",
			"UIStyle": null
		},
		"ws3": {
			"Id": "ws3",
			"Name": "ws3name",
			"Description": "ws3name",
			"UIStyle": null
		},
		"ws4": {
			"Id": "ws4",
			"Name": "finished",
			"Description": "ws4name",
			"UIStyle": null
		}
	},
	"Lines": {
		"l12": {
			"Id": "l12",
			"Namespace": null,
			"From": "ws1",
			"To": "ws2",
			"Weight": 0,
			"IgnoreDoActionsExceptions": false,
			"IsAutomaticalLine": false,
			"PreDoActions": null,
			"DoActions": [{
				"Id": "internal",
				"PackageId": "SELF",
				"Namespace": "StateMesh.Sample.TestAction",
				"InvokeName": "ReadName",
				"Parameters": [{
					"Id": "testparameter1",
					"ParameterName": "myname",
					"MappedTo": "myname",
					"IsInput": false,
					"ClassType": "System.String",
					"DefaultValue": null
				}, {
					"Id": "testparameter2",
					"ParameterName": "filePath",
					"MappedTo": "filePath",
					"IsInput": true,
					"ClassType": "System.String",
					"DefaultValue": null
				}],
				"Name": null,
				"Description": null,
				"UIStyle": null
			}],
			"Condition": null,
			"RollbackActions": null,
			"Name": null,
			"Description": null,
			"UIStyle": null
		},
		"l23": {
			"Id": "l23",
			"Namespace": null,
			"From": "ws2",
			"To": "ws3",
			"Weight": 0,
			"IgnoreDoActionsExceptions": false,
			"IsAutomaticalLine": false,
			"PreDoActions": [{
				"Id": "internal",
				"PackageId": "SELF",
				"Namespace": "StateMesh.Sample.TestAction",
				"InvokeName": "ReadName",
				"Parameters": [{
					"Id": "testparameter1",
					"ParameterName": "myname",
					"MappedTo": "myname",
					"IsInput": false,
					"ClassType": "System.String",
					"DefaultValue": null
				}, {
					"Id": "testparameter2",
					"ParameterName": "filePath",
					"MappedTo": "filePath",
					"IsInput": true,
					"ClassType": "System.String",
					"DefaultValue": null
				}],
				"Name": null,
				"Description": null,
				"UIStyle": null
			}],
			"DoActions": [{
				"Id": "internal",
				"PackageId": "SELF",
				"Namespace": "StateMesh.Sample.TestAction",
				"InvokeName": "HelloWorld",
				"Parameters": null,
				"Name": null,
				"Description": null,
				"UIStyle": null
			}],
			"Condition": {
				"Id": "cc",
				"Conditions": [{
					"Id": "cc1",
					"Action": {
						"Id": "internal",
						"PackageId": "SELF",
						"Namespace": "StateMesh.Sample.TestAction",
						"InvokeName": "IsTilerphyApprovaled",
						"Parameters": null,
						"Name": null,
						"Description": null,
						"UIStyle": null
					},
					"Assertions": [{
						"Id": "testassert",
						"MappedTo": "IsTilerphyApprovaled.Result",
						"Operation": "EQ",
						"TypeAssertion": "System.Boolean",
						"ValueAssertion": true
					}],
					"Conditions": null,
					"Relationship": null
				}],
				"Relationship": "OR"
			},
			"RollbackActions": null,
			"Name": null,
			"Description": null,
			"UIStyle": null
		},
		"l34": {
			"Id": "l34",
			"Namespace": null,
			"From": "ws3",
			"To": "ws4",
			"Weight": 0,
			"IgnoreDoActionsExceptions": false,
			"IsAutomaticalLine": false,
			"PreDoActions": null,
			"DoActions": [],
			"Condition": null,
			"RollbackActions": null,
			"Name": null,
			"Description": null,
			"UIStyle": null
		},
		"l31": {
			"Id": "l31",
			"Namespace": null,
			"From": "ws3",
			"To": "ws1",
			"Weight": 0,
			"IgnoreDoActionsExceptions": false,
			"IsAutomaticalLine": false,
			"PreDoActions": null,
			"DoActions": [],
			"Condition": null,
			"RollbackActions": null,
			"Name": null,
			"Description": null,
			"UIStyle": null
		}
	},
	"DefaultContext": null,
	"Name": "testsample",
	"Description": "my test sample for workflow engine",
	"UIStyle": null
}
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp3.1 is compatible. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
1.0.0 222 2/14/2022