public async Task <OpenApiResult> HandleTrigger(IOpenApiContext context, IWorkflowTrigger body)
{
ITenant tenant = await this.marainServicesTenancy.GetRequestingTenantAsync(context.CurrentTenantId).ConfigureAwait(false);
string delegatedTenantId = await this.marainServicesTenancy.GetDelegatedTenantIdForRequestingTenantAsync(tenant.Id).ConfigureAwait(false);
var operationId = Guid.NewGuid();
CreateOperationHeaders operationHeaders =
await this.operationsControl.CreateOperationAsync(delegatedTenantId, operationId).ConfigureAwait(false);
var envelope = new WorkflowMessageEnvelope(this.propertyBagFactory.Create(PropertyBagValues.Empty))
{
Trigger = body,
OperationId = operationId,
TenantId = context.CurrentTenantId,
};
var durableFunctionsOpenApiContext = (DurableFunctionsOpenApiContext)context;
await durableFunctionsOpenApiContext.OrchestrationClient.StartNewWithCustomSerializationSettingsAsync(
nameof(TriggerExecutionOrchestrator),
operationId.ToString(),
envelope,
this.serializerSettingsProvider.Instance).ConfigureAwait(false);
return(this.AcceptedResult(operationHeaders.Location));
}
/// <inheritdoc />
public Task ExecuteAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
#pragma warning disable CA2254 // Template should be a static expression - the whole point of this action type is to allow user-defined log messages
this.logger.LogDebug(BuildMessage(this.LogMessage, instance));
#pragma warning restore CA2254
return(Task.CompletedTask);
}
/// <inheritdoc/>
public Task <bool> EvaluateAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
if (trigger is HostedWorkflowTrigger hostedTrigger)
{
string actualValue = null;
bool parameterExists = hostedTrigger.Parameters?.TryGetValue(this.ParameterName, out actualValue) ?? false;
switch (this.ParameterTestType)
{
case HostedWorkflowTriggerParameterTestType.Equals:
return(Task.FromResult(parameterExists && actualValue == this.ParameterValue));
case HostedWorkflowTriggerParameterTestType.DoesNotEqual:
return(Task.FromResult(parameterExists && actualValue != this.ParameterValue));
case HostedWorkflowTriggerParameterTestType.Exists:
return(Task.FromResult(parameterExists));
case HostedWorkflowTriggerParameterTestType.DoesNotExist:
return(Task.FromResult(!parameterExists));
}
}
return(Task.FromResult(false));
}
public async Task ExecuteAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
if (trigger is EditCatalogItemTrigger patchTrigger)
{
await this.ExecuteAsync(instance, patchTrigger.PatchDetails);
}
}
public Task ExecuteAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
var newTrigger = new CreateCatalogItemTrigger {
CatalogItemId = instance.Id
};
return(this.queue.EnqueueTriggerAsync(newTrigger, default(Guid)));
}
public Task ExecuteAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
var log = GetTraces();
log.Add(this.Message);
return(Task.CompletedTask);
}
public Task <bool> EvaluateAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
if (trigger is ICatalogItemTrigger itemTrigger)
{
instance.Context["CatalogItemId"] = itemTrigger.CatalogItemId;
}
return(Task.FromResult(true));
}
public async Task <bool> EvaluateAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
if (trigger is EditCatalogItemTrigger editTrigger)
{
return(await this.EvaluateAsync(instance, editTrigger.PatchDetails).ConfigureAwait(false));
}
return(false);
}
public async Task <bool> EvaluateAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
if (trigger is ICatalogItemTrigger patchTrigger)
{
return(await this.EvaluateAsync(instance, patchTrigger.CatalogItemId));
}
return(false);
}
/// <summary>
/// Executes all of the actions in the supplied collection against the given
/// <see cref="WorkflowInstance" /> with the context of the specified trigger.
/// </summary>
/// <param name="actions">The list of <see cref="IWorkflowAction" />s to execute.</param>
/// <param name="instance">The <see cref="WorkflowInstance" /> to execute the actions against.</param>
/// <param name="trigger">
/// The <see cref="IWorkflowTrigger" /> that is being processed to cause these actions to be
/// executed. It is possible for this parameter to be null if the actions being executed
/// are the entry actions for the initial state of a new <see cref="WorkflowInstance" />.
/// </param>
/// <returns>A <see cref="Task" /> that will complete when all actions have been run.</returns>
/// <remarks>
/// The actions will be executed sequentially. If an action throws an
/// exception, subsequent actions will not be executed.
/// This is a helper method for internal use only. It is used to make code
/// more readable when executing exit/transition/entry actions.
/// </remarks>
private async Task ExecuteAsync(
IEnumerable <IWorkflowAction> actions,
WorkflowInstance instance,
IWorkflowTrigger trigger)
{
foreach (IWorkflowAction obj in actions)
{
await obj.ExecuteAsync(instance, trigger).ConfigureAwait(false);
}
}
/// <inheritdoc />
public Task <bool> EvaluateAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
if (trigger is HostedWorkflowTrigger hostedTrigger)
{
bool result = hostedTrigger.TriggerName == this.TriggerName;
return(Task.FromResult(result));
}
return(Task.FromResult(false));
}
/// <inheritdoc />
/// <exception cref="InvalidOperationException">
/// Thrown if the <see cref="FinishProcessing" /> method has been called.
/// </exception>
public Task EnqueueTriggerAsync(
IWorkflowTrigger trigger,
Guid operationId)
{
return(this.EnqueueMessageEnvelopeAsync(
new WorkflowMessageEnvelope(this.propertyBagFactory.Create(PropertyBagValues.Empty))
{
Trigger = trigger,
}));
}
public Task <bool> EvaluateAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
foreach (var current in this.RequiredContextItems)
{
if (!instance.Context.ContainsKey(current))
{
return(Task.FromResult(false));
}
}
return(Task.FromResult(true));
}
/// <summary>
/// The Process method is invoked asynchronously when <see cref="StartProcessing" /> is
/// called. It will run on a background thread until <see cref="FinishProcessing" />
/// is called.
/// </summary>
/// <returns>
/// A <see cref="Task" /> that will complete after <see cref="FinishProcessing" /> is called.
/// </returns>
private async Task Process()
{
while (true)
{
if (this.queue.IsEmpty)
{
if (this.shouldComplete)
{
break;
}
await Task.Delay(TimeSpan.FromSeconds(1)).ConfigureAwait(false);
continue;
}
this.queue.TryPeek(out WorkflowMessageEnvelope item);
IWorkflowInstanceStore instanceStore =
await this.workflowInstanceStoreFactory.GetWorkflowInstanceStoreForTenantAsync(this.tenantProvider.Root).ConfigureAwait(false);
IWorkflowEngine engine =
await this.workflowEngineFactory.GetWorkflowEngineAsync(this.tenantProvider.Root).ConfigureAwait(false);
if (item.IsTrigger)
{
this.logger.LogInformation("Processing trigger with content type {ContentType}", item.ContentType);
IWorkflowTrigger trigger = item.Trigger;
IEnumerable <string> instanceIds = await instanceStore.GetMatchingWorkflowInstanceIdsForSubjectsAsync(
item.Trigger.GetSubjects(),
int.MaxValue,
0).ConfigureAwait(false);
foreach (string current in instanceIds)
{
await engine.ProcessTriggerAsync(trigger, current).ConfigureAwait(false);
}
}
else
{
this.logger.LogInformation("Processing start workflow instance request");
await engine.StartWorkflowInstanceAsync(item.StartWorkflowInstanceRequest)
.ConfigureAwait(false);
}
this.queue.TryDequeue(out _);
}
}
public async Task ExecuteAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
var item = new CatalogItem
{
Id = instance.Id,
Identifier = instance.Context["Identifier"],
Type = instance.Context["Type"]
};
instance.Context.Remove("Identifier");
instance.Context.Remove("Type");
var repository = this.repositoryFactory.GetRepository();
await repository.UpsertItemAsync(item).ConfigureAwait(false);
}
/// <inheritdoc />
public Task <bool> EvaluateAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
bool result = false;
if (trigger is EntityIdTrigger etrigger)
{
if (instance.Context.TryGetValue(this.EntityIdContextProperty, out string value))
{
result = value == etrigger.EntityId;
}
result = result && etrigger.Activity == this.Activity;
}
return(Task.FromResult(result));
}
/// <summary>
/// Finds the first <see cref="WorkflowTransition"/> in the supplied
/// list that can accept the specified <see cref="IWorkflowTrigger"/>.
/// </summary>
/// <param name="transitions">The transitions to evaluate.</param>
/// <param name="instance">The <see cref="WorkflowInstance"/> to which the transition belongs.</param>
/// <param name="trigger">The trigger that is currently being processed.</param>
/// <returns>
/// A <see cref="Task"/> whose result will be the first transition
/// from the list that can accept the trigger. If none of the transitions
/// can accept the trigger, null is returned.
/// </returns>
private async Task <WorkflowTransition> FindTransitionAsync(
IEnumerable <WorkflowTransition> transitions,
WorkflowInstance instance,
IWorkflowTrigger trigger)
{
foreach (WorkflowTransition transition in transitions)
{
this.logger.LogDebug("Considering transition {TransitionId} [{TransitionDisplayName}]", transition.Id, transition.DisplayName);
if (await this.CheckConditionsAsync(transition.Conditions, instance, trigger).ConfigureAwait(false))
{
this.logger.LogDebug("Accepted transition {TransitionId} [{TransitionDisplayName}]", transition.Id, transition.DisplayName);
return(transition);
}
this.logger.LogDebug("Rejected transition {TransitionId} [{TransitionDisplayName}]", transition.Id, transition.DisplayName);
}
return(null);
}
/// <summary>
/// Passes a trigger to an instance and returns the new state.
/// </summary>
/// <param name="instance">
/// The instance that should process the trigger.
/// </param>
/// <param name="trigger">
/// The trigger that should be processed.
/// </param>
/// <returns>
/// A <see cref="Task"/> that completes when trigger processing has finished.
/// </returns>
/// <remarks>
/// See the documentation for the <see cref="AcceptTriggerAsync(Workflow, WorkflowState, WorkflowInstance, IWorkflowTrigger)"/>
/// for a full explanation of the processing steps.
/// </remarks>
private async Task <WorkflowTransition> AcceptTriggerAsync(
WorkflowInstance instance,
IWorkflowTrigger trigger)
{
Workflow workflow = await this.workflowStore.GetWorkflowAsync(instance.WorkflowId).ConfigureAwait(false);
WorkflowState state = workflow.GetState(instance.StateId);
if (instance.Status == WorkflowStatus.Faulted)
{
return(null);
}
if (instance.Status == WorkflowStatus.Complete)
{
return(null);
}
return(await this.AcceptTriggerAsync(workflow, state, instance, trigger).ConfigureAwait(false));
}
/// <summary>
/// Evaluates all of the conditions in the supplied collection against the given
/// <see cref="WorkflowInstance" /> with the context of the specified trigger.
/// </summary>
/// <param name="conditions">The list of <see cref="IWorkflowCondition" />s to evaluate.</param>
/// <param name="instance">The <see cref="WorkflowInstance" /> to evaluate the conditions actions against.</param>
/// <param name="trigger">
/// The <see cref="IWorkflowTrigger" /> that is being processed to cause these conditions to be
/// evaluated. It is possible for this parameter to be null if the conditions being evaluated
/// are the entry conditions for the initial state of a new <see cref="WorkflowInstance" />.
/// </param>
/// <returns>A <see cref="Task" /> that will complete when all conditions have been evaluated.</returns>
/// <remarks>
/// The actions will be executed sequentially. If a condition is not met, remaining
/// conditions will not be evaluated.
/// This is a helper method for internal use only. It is used to make code
/// more readable when evaluating exit/transition/entry conditions.
/// </remarks>
private async Task <bool> CheckConditionsAsync(
IEnumerable <IWorkflowCondition> conditions,
WorkflowInstance instance,
IWorkflowTrigger trigger)
{
foreach (IWorkflowCondition condition in conditions)
{
string conditionName = condition.GetType().Name;
this.logger.LogDebug("Evaluating condition {ConditionId} {ConditionName}", condition.Id, conditionName);
if (!await condition.EvaluateAsync(instance, trigger).ConfigureAwait(false))
{
this.logger.LogDebug("Condition false: {ConditionId} {ConditionName}", condition.Id, conditionName);
return(false);
}
this.logger.LogDebug("Condition true: {ConditionId} {ConditionName}", condition.Id, conditionName);
}
return(true);
}
/// <summary>
/// Initializes a new instance of the <see cref="WorkflowInstanceTransitionCloudEventData"/> class.
/// </summary>
/// <param name="workflowInstanceId">The <see cref="WorkflowInstanceId"/>.</param>
/// <param name="trigger">The (optional) <see cref="Trigger"/>.</param>
public WorkflowInstanceTransitionCloudEventData(string workflowInstanceId, IWorkflowTrigger trigger = null)
{
this.WorkflowInstanceId = workflowInstanceId;
this.Trigger = trigger;
}
/// <inheritdoc />
public Task <bool> EvaluateAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
bool result = trigger.ContentType == this.TriggerContentType;
return(Task.FromResult(result));
}
/// <inheritdoc/>
public Task ProcessTriggerAsync(IWorkflowTrigger trigger, string workflowInstanceId, string partitionKey = null)
{
return(this.ProcessInstanceWithLeaseAsync(trigger, workflowInstanceId, partitionKey));
}
public async Task <OpenApiResult> HandleTrigger(string tenantId, string workflowInstanceId, IWorkflowTrigger body)
{
ITenant tenant = await this.marainServicesTenancy.GetRequestingTenantAsync(tenantId).ConfigureAwait(false);
IWorkflowEngine workflowEngine = await this.workflowEngineFactory.GetWorkflowEngineAsync(tenant).ConfigureAwait(false);
await workflowEngine.ProcessTriggerAsync(body, workflowInstanceId).ConfigureAwait(false);
return(this.OkResult());
}
/// <summary>
/// Retrieves a single <see cref="WorkflowInstance" /> and passes it the trigger
/// to process.
/// </summary>
/// <param name="trigger">The trigger to process.</param>
/// <param name="instanceId">The Id of the <see cref="WorkflowInstance" /> that will process the trigger.</param>
/// <param name="partitionKey">The partition key for the instance. If not supplied, the Id will be used.</param>
/// <returns>A <see cref="Task" /> that will complete when the instance has finished processing the trigger.</returns>
/// <remarks>
/// This method retrieves the workflow instance from storage, passes it the trigger
/// and, if the instance has updated as a result of the trigger, puts it back in
/// storage.
/// </remarks>
private async Task ProcessInstanceAsync(IWorkflowTrigger trigger, string instanceId, string partitionKey)
{
WorkflowInstance item = null;
Workflow workflow = null;
// We need to gather data for the final CloudEvent prior to applying the transition, as some of the data
// we publish is pre-transition - e.g. previous state and context.
var workflowEventData = new WorkflowInstanceTransitionCloudEventData(instanceId, trigger);
string workflowEventType = WorkflowEventTypes.TransitionCompleted;
try
{
item = await this.workflowInstanceStore.GetWorkflowInstanceAsync(instanceId, partitionKey).ConfigureAwait(false);
workflow = await this.workflowStore.GetWorkflowAsync(item.WorkflowId).ConfigureAwait(false);
workflowEventData.PreviousContext = item.Context.ToDictionary(x => x.Key, x => x.Value);
workflowEventData.WorkflowId = item.WorkflowId;
workflowEventData.PreviousState = item.StateId;
workflowEventData.PreviousStatus = item.Status;
this.logger.LogDebug("Accepting trigger {TriggerId} in instance {ItemId}", trigger.Id, item.Id);
WorkflowTransition transition = await this.AcceptTriggerAsync(item, trigger).ConfigureAwait(false);
workflowEventData.TransitionId = transition?.Id;
workflowEventData.NewState = item.StateId;
workflowEventData.NewStatus = item.Status;
workflowEventData.NewContext = item.Context;
this.logger.LogDebug("Accepted trigger {TriggerId} in instance {ItemId}", trigger.Id, item.Id);
}
catch (WorkflowInstanceNotFoundException)
{
// Bubble this specific exception out as the caller needs to know that they sent through an
// invalid workflow instance id.
this.logger.LogError(
new EventId(0),
"Unable to locate the specified instance {InstanceId} for trigger {TriggerId}",
instanceId,
trigger.Id);
throw;
}
catch (Exception ex)
{
this.logger.LogError(
new EventId(0),
ex,
"Error accepting trigger {TriggerId} in instance {ItemId}",
trigger.Id,
item?.Id);
if (item != null)
{
item.Status = WorkflowStatus.Faulted;
item.IsDirty = true;
workflowEventData.NewStatus = item.Status;
workflowEventType = WorkflowEventTypes.InstanceFaulted;
}
}
finally
{
if (item?.IsDirty == true)
{
await this.workflowInstanceStore.UpsertWorkflowInstanceAsync(item, partitionKey).ConfigureAwait(false);
await this.cloudEventPublisher.PublishWorkflowEventDataAsync(
this.cloudEventSource,
workflowEventType,
item.Id,
workflowEventData.ContentType,
workflowEventData,
workflow.WorkflowEventSubscriptions).ConfigureAwait(false);
}
}
}
/// <summary>
/// Wraps the <see cref="ProcessInstanceAsync" /> method to use the current <see cref="leaseProvider" />
/// to take a lease on the workflow instance prior to processing.
/// </summary>
/// <param name="trigger">The trigger to process.</param>
/// <param name="instanceId">The Id of the <see cref="WorkflowInstance" /> that will process the trigger.</param>
/// <param name="partitionKey">The partition key for the instance. If not supplied, the Id will be used.</param>
/// <returns>A <see cref="Task" /> that will complete when the instance has finished processing the trigger.</returns>
/// <remarks>
/// If another instance of WorkflowEngine already has a lease on the WorkflowInstance,
/// this method will wait for the lease to become available.
/// </remarks>
private Task ProcessInstanceWithLeaseAsync(IWorkflowTrigger trigger, string instanceId, string partitionKey)
{
return(this.leaseProvider
.ExecuteWithMutexAsync(_ => this.ProcessInstanceAsync(trigger, instanceId, partitionKey), instanceId));
}
public Task <bool> EvaluateAsync(WorkflowInstance instance, IWorkflowTrigger trigger)
{
return(Task.FromResult(trigger.Id == this.TriggerId));
}
/// <summary>
/// Determines whether an <see cref="WorkflowState" /> is able to accept a trigger,
/// and processes it if so.
/// </summary>
/// <param name="workflow">The workflow that is in operation.</param>
/// <param name="state">The state that will process the trigger.</param>
/// <param name="instance">The <see cref="WorkflowInstance" /> that is in this state.</param>
/// <param name="trigger">The <see cref="IWorkflowTrigger" /> to process.</param>
/// <returns>
/// A <see cref="Task" /> that will complete when the trigger has been
/// processed, or it is determined that the trigger can't be processed
/// for the given <see cref="WorkflowInstance" /> and <see cref="WorkflowState" />.
/// </returns>
/// <remarks>
/// <para>
/// This method consists of three parts:
/// <list type="bullet">
/// <item>
/// <description>
/// Determining if the supplied trigger can be accepted by the
/// <see cref="WorkflowInstance" /> in its current state.
/// </description>
/// </item>
/// <item>
/// <description>
/// Executing the actions required to move to the new state.
/// </description>
/// </item>
/// <item>
/// <description>
/// Updating the <see cref="WorkflowInstance" /> with the new state and
/// associated interests.
/// </description>
/// </item>
/// </list>
/// </para>
/// <para>
/// To determine the transition to use, the following steps are taken:
/// <list type="bullet">
/// <item>
/// <description>
/// Evaluate the exit conditions of the current state (from
/// <see cref="WorkflowState.ExitConditions" />. If any conditions
/// evaluate to false, processing ends.
/// </description>
/// </item>
/// <item>
/// <description>
/// Iterate the <see cref="WorkflowState.Transitions" /> collection
/// and select the first <see cref="WorkflowTransition" /> whose
/// <see cref="WorkflowTransition.Conditions" /> all evaluate to true.
/// If no transitions match, then processing ends.
/// </description>
/// </item>
/// <item>
/// <description>
/// Retrieve the target state from the transition, and evaluate its
/// entry conditions (from <see cref="WorkflowState.EntryConditions" />.
/// If any conditions evaluate to false, processing ends.
/// </description>
/// </item>
/// </list>
/// </para>
/// <para>
/// Once it has been determined that the trigger can be processed, actions
/// from the current state, transition and target state are executed in order:
/// <list type="bullet">
/// <item>
/// <description>
/// The current state's <see cref="WorkflowState.ExitActions" />.
/// </description>
/// </item>
/// <item>
/// <description>
/// The transition's <see cref="WorkflowTransition.Actions" />
/// </description>
/// </item>
/// <item>
/// <description>
/// The target state's <see cref="WorkflowState.ExitActions" />.
/// </description>
/// </item>
/// </list>
/// </para>
/// <para>
/// Once all actions have been processed, the <see cref="WorkflowInstance" />s status
/// is set back to <see cref="WorkflowStatus.Waiting" />, if the new current state
/// contains any transitions. If the new current state doesn't contain any transitions,
/// there is no way of leaving this state and the workflow status is set to
/// <see cref="WorkflowStatus.Complete" />. Additionally, the <see cref="WorkflowInstance.IsDirty" />
/// property is set to true to ensure that the instance is saved by the <see cref="IWorkflowEngine" />.
/// </para>
/// </remarks>
private async Task <WorkflowTransition> AcceptTriggerAsync(
Workflow workflow,
WorkflowState state,
WorkflowInstance instance,
IWorkflowTrigger trigger)
{
bool exitAllowed = await this.CheckConditionsAsync(state.ExitConditions, instance, trigger).ConfigureAwait(false);
if (!exitAllowed)
{
this.logger.LogDebug(
"Exit not permitted from state {StateId} [{StateDisplayName}] in instance {InstanceId} with trigger {TriggerId}",
state.Id,
state.DisplayName,
instance.Id,
trigger.Id);
instance.Status = WorkflowStatus.Waiting;
return(null);
}
WorkflowTransition transition = await this.FindTransitionAsync(state.Transitions, instance, trigger).ConfigureAwait(false);
if (transition == null)
{
this.logger.LogDebug(
"No transition found from state {StateId} [{StateDisplayName}] in instance {InstanceId} with trigger {TriggerId}",
state.Id,
state.DisplayName,
instance.Id,
trigger.Id);
instance.Status = WorkflowStatus.Waiting;
return(transition);
}
WorkflowState targetState = workflow.GetState(transition.TargetStateId);
this.logger.LogDebug(
"Transition {TransitionId} [{TransitionDisplayName}] found from state {StateId} [{StateDisplayName}] to state {TargetStateId} [{TargetStateDisplayName}] in instance {InstanceId} with trigger {TriggerId}",
transition.Id,
transition.DisplayName,
state.Id,
state.DisplayName,
targetState.Id,
targetState.DisplayName,
instance.Id,
trigger.Id);
bool entryAllowed = await this.CheckConditionsAsync(targetState.EntryConditions, instance, trigger)
.ConfigureAwait(false);
if (!entryAllowed)
{
this.logger.LogDebug(
"Entry not permitted into state {TargetStateId} [{TargetStateDisplayName}] in instance {InstanceId} with trigger {TriggerId}",
targetState.Id,
targetState.DisplayName,
instance.Id,
trigger.Id);
instance.Status = WorkflowStatus.Waiting;
return(transition);
}
this.logger.LogDebug(
"Executing exit actions on transition {TransitionId} from state {StateId} [{StateDisplayName}] to state {TargetStateId} [{TargetStateDisplayName}] in instance {InstanceId} with trigger {TriggerId}",
transition.Id,
state.Id,
state.DisplayName,
targetState.Id,
targetState.DisplayName,
instance.Id,
trigger.Id);
await this.ExecuteAsync(state.ExitActions, instance, trigger).ConfigureAwait(false);
this.logger.LogDebug(
"Executing transition actions on transition {TransitionId} from state {StateId} [{StateDisplayName}] to state {TargetStateId} [{TargetStateDisplayName}] in instance {InstanceId} with trigger {TriggerId}",
transition.Id,
state.Id,
state.DisplayName,
targetState.Id,
targetState.DisplayName,
instance.Id,
trigger.Id);
await this.ExecuteAsync(transition.Actions, instance, trigger).ConfigureAwait(false);
instance.Status = targetState.Transitions.Count == 0 ? WorkflowStatus.Complete : WorkflowStatus.Waiting;
instance.SetState(targetState);
this.logger.LogDebug(
"Executing entry actions on transition {TransitionId} from state {StateId} [{StateDisplayName}] to state {TargetStateId} [{TargetStateDisplayName}] in instance {InstanceId} with trigger {TriggerId}",
transition.Id,
state.Id,
state.DisplayName,
targetState.Id,
targetState.DisplayName,
instance.Id,
trigger.Id);
await this.ExecuteAsync(targetState.EntryActions, instance, trigger).ConfigureAwait(false);
// Then update the instance status, set the new state
instance.IsDirty = true;
return(transition);
}