60 lines
2.2 KiB
C#
60 lines
2.2 KiB
C#
using System;
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using System.Linq;
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using System.Threading.Tasks;
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using Elsa.Activities.Console.Extensions;
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using Elsa.Activities.Primitives;
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using Elsa.Activities.UserTask.Activities;
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using Elsa.Activities.UserTask.Extensions;
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using Elsa.Extensions;
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using Elsa.Models;
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using Elsa.Persistence.Memory;
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using Elsa.Runtime;
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using Elsa.Services;
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using Elsa.Services.Extensions;
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using Elsa.Services.Models;
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using Microsoft.Extensions.DependencyInjection;
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namespace Sample12
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{
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/// <summary>
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/// Demonstrates workflow correlation.
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/// </summary>
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public class Program
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{
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public static async Task Main(string[] args)
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{
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var services = BuildServices();
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var registry = services.GetService<IWorkflowRegistry>();
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var workflowDefinition = registry.RegisterWorkflow<UserTaskWorkflow>();
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var invoker = services.GetRequiredService<IWorkflowInvoker>();
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// Invoke the workflow.
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var correlationId = Guid.NewGuid().ToString("N");
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await invoker.InvokeAsync(workflowDefinition, correlationId: correlationId);
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WorkflowExecutionContext executionContext;
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do
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{
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// Workflow is now halted on the user task activity. Ask user for input:
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Console.WriteLine("What action will you take? Choose one of: Accept, Reject, Needs Work");
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var userAction = Console.ReadLine();
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// Resume the workflow with the received stimulus.
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var triggeredExecutionContexts = await invoker.TriggerAsync(nameof(UserTask), new Variables { ["UserAction"] = userAction}, correlationId);
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executionContext = triggeredExecutionContexts.First();
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} while (executionContext.Workflow.IsHalted());
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}
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private static IServiceProvider BuildServices()
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{
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return new ServiceCollection()
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.AddWorkflows()
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.AddConsoleActivities()
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.AddUserTaskActivities()
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.AddMemoryWorkflowDefinitionStore()
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.AddMemoryWorkflowInstanceStore()
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.BuildServiceProvider();
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}
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}
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} |