private void DeleteAllScopeTasks(IExecutionEntity scopeExecution, ITaskEntityManager taskEntityManager)
{
ICollection <ITaskEntity> tasksForExecution = taskEntityManager.FindTasksByExecutionId(scopeExecution.Id);
foreach (ITaskEntity taskEntity in tasksForExecution)
{
taskEntityManager.DeleteTask(taskEntity, execution.DeleteReason, false, false);
}
}
/// <summary>
///
/// </summary>
/// <param name="execution"></param>
/// <param name="signalName"></param>
/// <param name="signalData"></param>
/// <param name="throwError"></param>
public override void Trigger(IExecutionEntity execution, string signalName, object signalData, bool throwError = true)
{
ICommandContext commandContext = Context.CommandContext;
ITaskEntityManager taskEntityManager = commandContext.TaskEntityManager;
IList <ITaskEntity> taskEntities = taskEntityManager.FindTasksByExecutionId(execution.Id); // Should be only one
foreach (ITaskEntity taskEntity in taskEntities)
{
if (!taskEntity.Deleted)
{
if (throwError)
{
throw new ActivitiException("UserTask should not be signalled before complete");
}
}
}
Leave(execution, signalData);
}
/// <summary>
///
/// </summary>
protected override void RunOperation()
{
try
{
// Find the actual scope that needs to be destroyed.
// This could be the incoming execution, or the first parent execution where isScope = true
// Find parent scope execution
IExecutionEntity scopeExecution = execution.IsScope ? execution : FindFirstParentScopeExecution(execution);
if (scopeExecution == null)
{
throw new ActivitiException("Programmatic error: no parent scope execution found for boundary event");
}
IExecutionEntityManager executionEntityManager = commandContext.ExecutionEntityManager;
DeleteAllChildExecutions(executionEntityManager, scopeExecution);
// Delete all scope tasks
ITaskEntityManager taskEntityManager = commandContext.TaskEntityManager;
DeleteAllScopeTasks(scopeExecution, taskEntityManager);
// Delete all scope jobs
ITimerJobEntityManager timerJobEntityManager = commandContext.TimerJobEntityManager;
DeleteAllScopeJobs(scopeExecution, timerJobEntityManager);
// Remove variables associated with this scope
IVariableInstanceEntityManager variableInstanceEntityManager = commandContext.VariableInstanceEntityManager;
RemoveAllVariablesFromScope(scopeExecution, variableInstanceEntityManager);
commandContext.HistoryManager.RecordActivityEnd(scopeExecution, scopeExecution.DeleteReason);
executionEntityManager.Delete(scopeExecution);
}
catch (Exception ex)
{
logger.LogError(ex, ex.Message);
throw;
}
}
public virtual void DeleteDataForExecution(IExecutionEntity executionEntity, string deleteReason, bool cancel)
{
// To start, deactivate the current incoming execution
executionEntity.Ended = true;
executionEntity.IsActive = false;
bool enableExecutionRelationshipCounts = IsExecutionRelatedEntityCountEnabled(executionEntity);
if (executionEntity.Id.Equals(executionEntity.ProcessInstanceId) && (!enableExecutionRelationshipCounts || (enableExecutionRelationshipCounts && ((ICountingExecutionEntity)executionEntity).IdentityLinkCount > 0)))
{
IIdentityLinkEntityManager identityLinkEntityManager = IdentityLinkEntityManager;
ICollection <IIdentityLinkEntity> identityLinks = identityLinkEntityManager.FindIdentityLinksByProcessInstanceId(executionEntity.ProcessInstanceId);
foreach (IIdentityLinkEntity identityLink in identityLinks)
{
identityLinkEntityManager.Delete(identityLink);
}
}
// Get variables related to execution and delete them
if (!enableExecutionRelationshipCounts || (enableExecutionRelationshipCounts && ((ICountingExecutionEntity)executionEntity).VariableCount > 0))
{
ICollection <IVariableInstance> executionVariables = executionEntity.VariableInstancesLocal.Values;
foreach (IVariableInstance variableInstance in executionVariables)
{
if (variableInstance is IVariableInstanceEntity variableInstanceEntity)
{
IVariableInstanceEntityManager variableInstanceEntityManager = VariableInstanceEntityManager;
variableInstanceEntityManager.Delete(variableInstanceEntity);
if (variableInstanceEntity.ByteArrayRef != null && variableInstanceEntity.ByteArrayRef.Id is object)
{
ByteArrayEntityManager.DeleteByteArrayById(variableInstanceEntity.ByteArrayRef.Id);
}
}
}
}
// Delete current user tasks
if (!enableExecutionRelationshipCounts || (enableExecutionRelationshipCounts && ((ICountingExecutionEntity)executionEntity).TaskCount > 0))
{
ITaskEntityManager taskEntityManager = TaskEntityManager;
ICollection <ITaskEntity> tasksForExecution = taskEntityManager.FindTasksByExecutionId(executionEntity.Id);
foreach (ITaskEntity taskEntity in tasksForExecution)
{
taskEntityManager.DeleteTask(taskEntity, deleteReason, false, cancel);
}
}
// Delete jobs
if (!enableExecutionRelationshipCounts || (enableExecutionRelationshipCounts && ((ICountingExecutionEntity)executionEntity).TimerJobCount > 0))
{
ITimerJobEntityManager timerJobEntityManager = TimerJobEntityManager;
ICollection <ITimerJobEntity> timerJobsForExecution = timerJobEntityManager.FindJobsByExecutionId(executionEntity.Id);
foreach (ITimerJobEntity job in timerJobsForExecution)
{
timerJobEntityManager.Delete(job);
if (EventDispatcher.Enabled)
{
EventDispatcher.DispatchEvent(ActivitiEventBuilder.CreateEntityEvent(ActivitiEventType.JOB_CANCELED, job));
}
}
}
if (!enableExecutionRelationshipCounts || (enableExecutionRelationshipCounts && ((ICountingExecutionEntity)executionEntity).JobCount > 0))
{
IJobEntityManager jobEntityManager = JobEntityManager;
ICollection <IJobEntity> jobsForExecution = jobEntityManager.FindJobsByExecutionId(executionEntity.Id);
foreach (IJobEntity job in jobsForExecution)
{
JobEntityManager.Delete(job);
if (EventDispatcher.Enabled)
{
EventDispatcher.DispatchEvent(ActivitiEventBuilder.CreateEntityEvent(ActivitiEventType.JOB_CANCELED, job));
}
}
}
if (!enableExecutionRelationshipCounts || (enableExecutionRelationshipCounts && ((ICountingExecutionEntity)executionEntity).SuspendedJobCount > 0))
{
ISuspendedJobEntityManager suspendedJobEntityManager = SuspendedJobEntityManager;
ICollection <ISuspendedJobEntity> suspendedJobsForExecution = suspendedJobEntityManager.FindJobsByExecutionId(executionEntity.Id);
foreach (ISuspendedJobEntity job in suspendedJobsForExecution)
{
suspendedJobEntityManager.Delete(job);
if (EventDispatcher.Enabled)
{
EventDispatcher.DispatchEvent(ActivitiEventBuilder.CreateEntityEvent(ActivitiEventType.JOB_CANCELED, job));
}
}
}
if (!enableExecutionRelationshipCounts || (enableExecutionRelationshipCounts && ((ICountingExecutionEntity)executionEntity).DeadLetterJobCount > 0))
{
IDeadLetterJobEntityManager deadLetterJobEntityManager = DeadLetterJobEntityManager;
ICollection <IDeadLetterJobEntity> deadLetterJobsForExecution = deadLetterJobEntityManager.FindJobsByExecutionId(executionEntity.Id);
foreach (IDeadLetterJobEntity job in deadLetterJobsForExecution)
{
deadLetterJobEntityManager.Delete(job);
if (EventDispatcher.Enabled)
{
EventDispatcher.DispatchEvent(ActivitiEventBuilder.CreateEntityEvent(ActivitiEventType.JOB_CANCELED, job));
}
}
}
// Delete event subscriptions
if (!enableExecutionRelationshipCounts || (enableExecutionRelationshipCounts && ((ICountingExecutionEntity)executionEntity).EventSubscriptionCount > 0))
{
IEventSubscriptionEntityManager eventSubscriptionEntityManager = EventSubscriptionEntityManager;
IList <IEventSubscriptionEntity> eventSubscriptions = eventSubscriptionEntityManager.FindEventSubscriptionsByExecution(executionEntity.Id);
foreach (IEventSubscriptionEntity eventSubscription in eventSubscriptions)
{
eventSubscriptionEntityManager.Delete(eventSubscription);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="execution"></param>
public override void Execute(IExecutionEntity execution)
{
ICommandContext commandContext = Context.CommandContext;
ITaskEntityManager taskEntityManager = commandContext.TaskEntityManager;
//如果当前任务为补偿任务，则修改任务的父级为流程实例
if ((execution.CurrentFlowElement as UserTask).ForCompensation)
{
execution.Parent = execution.ProcessInstance;
}
ITaskEntity task = taskEntityManager.Create();
task.Execution = execution;
task.TaskDefinitionKey = userTask.Id;
task.IsRuntimeAssignee();
task.CanTransfer = userTask.CanTransfer;
task.OnlyAssignee = task.OnlyAssignee;
ProcessEngineConfigurationImpl processEngineConfiguration = Context.ProcessEngineConfiguration;
ExpressionManager expressionManager = processEngineConfiguration.ExpressionManager;
string activeTaskName;
string activeTaskDescription;
string activeTaskDueDate;
string activeTaskCategory;
string activeTaskSkipExpression;
string activeTaskPriority;
string activeTaskFormKey;
string activeTaskAssignee;
string activeTaskOwner;
IList <string> activeTaskCandidateUsers;
IList <string> activeTaskCandidateGroups;
if (Context.ProcessEngineConfiguration.EnableProcessDefinitionInfoCache)
{
JToken taskElementProperties = Context.GetBpmnOverrideElementProperties(userTask.Id, execution.ProcessDefinitionId);
activeTaskName = GetActiveValue(userTask.Name, DynamicBpmnConstants.USER_TASK_NAME, taskElementProperties);
activeTaskDescription = GetActiveValue(userTask.Documentation, DynamicBpmnConstants.USER_TASK_DESCRIPTION, taskElementProperties);
activeTaskDueDate = GetActiveValue(userTask.DueDate, DynamicBpmnConstants.USER_TASK_DUEDATE, taskElementProperties);
activeTaskPriority = GetActiveValue(userTask.Priority, DynamicBpmnConstants.USER_TASK_PRIORITY, taskElementProperties);
activeTaskCategory = GetActiveValue(userTask.Category, DynamicBpmnConstants.USER_TASK_CATEGORY, taskElementProperties);
activeTaskFormKey = GetActiveValue(userTask.FormKey, DynamicBpmnConstants.USER_TASK_FORM_KEY, taskElementProperties);
activeTaskSkipExpression = GetActiveValue(userTask.SkipExpression, DynamicBpmnConstants.TASK_SKIP_EXPRESSION, taskElementProperties);
activeTaskAssignee = GetActiveValue(userTask.Assignee, DynamicBpmnConstants.USER_TASK_ASSIGNEE, taskElementProperties);
activeTaskOwner = GetActiveValue(userTask.Owner, DynamicBpmnConstants.USER_TASK_OWNER, taskElementProperties);
activeTaskCandidateUsers = GetActiveValueList(userTask.CandidateUsers, DynamicBpmnConstants.USER_TASK_CANDIDATE_USERS, taskElementProperties);
activeTaskCandidateGroups = GetActiveValueList(userTask.CandidateGroups, DynamicBpmnConstants.USER_TASK_CANDIDATE_GROUPS, taskElementProperties);
}
else
{
activeTaskName = userTask.Name;
activeTaskDescription = userTask.Documentation;
activeTaskDueDate = userTask.DueDate;
activeTaskPriority = userTask.Priority;
activeTaskCategory = userTask.Category;
activeTaskFormKey = userTask.FormKey;
activeTaskSkipExpression = userTask.SkipExpression;
activeTaskAssignee = userTask.Assignee;
activeTaskOwner = userTask.Owner;
activeTaskCandidateUsers = userTask.CandidateUsers;
activeTaskCandidateGroups = userTask.CandidateGroups;
}
if (!string.IsNullOrWhiteSpace(activeTaskName))
{
string name;
try
{
name = (string)expressionManager.CreateExpression(activeTaskName).GetValue(execution);
}
catch (ActivitiException e)
{
name = activeTaskName;
log.LogWarning("property not found in task name expression " + e.Message);
}
task.Name = name;
}
if (!string.IsNullOrWhiteSpace(activeTaskDescription))
{
string description;
try
{
description = (string)expressionManager.CreateExpression(activeTaskDescription).GetValue(execution);
}
catch (ActivitiException e)
{
description = activeTaskDescription;
log.LogWarning("property not found in task description expression " + e.Message);
}
task.Description = description;
}
if (!string.IsNullOrWhiteSpace(activeTaskDueDate))
{
object dueDate = expressionManager.CreateExpression(activeTaskDueDate).GetValue(execution);
if (dueDate != null)
{
if (dueDate is DateTime time)
{
task.DueDate = time;
}
else if (dueDate is string @string)
{
string businessCalendarName;
if (!string.IsNullOrWhiteSpace(userTask.BusinessCalendarName))
{
businessCalendarName = expressionManager.CreateExpression(userTask.BusinessCalendarName).GetValue(execution).ToString();
}
else
{
businessCalendarName = DueDateBusinessCalendar.NAME;
}
IBusinessCalendar businessCalendar = Context.ProcessEngineConfiguration.BusinessCalendarManager.GetBusinessCalendar(businessCalendarName);
task.DueDate = businessCalendar.ResolveDuedate(@string);
}
else
{
throw new ActivitiIllegalArgumentException("Due date expression does not resolve to a Date or Date string: " + activeTaskDueDate);
}
}
}
if (!string.IsNullOrWhiteSpace(activeTaskPriority))
{
object priority = expressionManager.CreateExpression(activeTaskPriority).GetValue(execution);
if (priority != null)
{
if (priority is string @string)
{
try
{
task.Priority = Convert.ToInt32(@string);
}
catch (FormatException e)
{
throw new ActivitiIllegalArgumentException("Priority does not resolve to a number: " + priority, e);
}
}
else if (priority is int || priority is long)
{
task.Priority = (int)priority;
}
else
{
throw new ActivitiIllegalArgumentException("Priority expression does not resolve to a number: " + activeTaskPriority);
}
}
}
if (!string.IsNullOrWhiteSpace(activeTaskCategory))
{
object category = expressionManager.CreateExpression(activeTaskCategory).GetValue(execution);
if (category != null)
{
if (category is string)
{
task.Category = category.ToString();
}
else
{
throw new ActivitiIllegalArgumentException("Category expression does not resolve to a string: " + activeTaskCategory);
}
}
}
if (!string.IsNullOrWhiteSpace(activeTaskFormKey))
{
object formKey = expressionManager.CreateExpression(activeTaskFormKey).GetValue(execution);
if (formKey != null)
{
if (formKey is string)
{
task.FormKey = formKey.ToString();
}
else
{
throw new ActivitiIllegalArgumentException("FormKey expression does not resolve to a string: " + activeTaskFormKey);
}
}
}
taskEntityManager.Insert(task, execution);
bool skipUserTask = false;
if (!string.IsNullOrWhiteSpace(activeTaskSkipExpression))
{
IExpression skipExpression = expressionManager.CreateExpression(activeTaskSkipExpression);
skipUserTask = SkipExpressionUtil.IsSkipExpressionEnabled(execution, skipExpression) && SkipExpressionUtil.ShouldSkipFlowElement(execution, skipExpression);
}
// Handling assignments need to be done after the task is inserted, to have an id
if (!skipUserTask)
{
HandleAssignments(taskEntityManager, activeTaskAssignee, activeTaskOwner, activeTaskCandidateUsers, activeTaskCandidateGroups, task, expressionManager, execution);
}
processEngineConfiguration.ListenerNotificationHelper.ExecuteTaskListeners(task, BaseTaskListenerFields.EVENTNAME_CREATE);
// All properties set, now fire events
if (Context.ProcessEngineConfiguration.EventDispatcher.Enabled)
{
IActivitiEventDispatcher eventDispatcher = Context.ProcessEngineConfiguration.EventDispatcher;
eventDispatcher.DispatchEvent(ActivitiEventBuilder.CreateEntityEvent(ActivitiEventType.TASK_CREATED, task));
if (string.IsNullOrWhiteSpace(task.Assignee) == false)
{
eventDispatcher.DispatchEvent(ActivitiEventBuilder.CreateEntityEvent(ActivitiEventType.TASK_ASSIGNED, task));
}
}
if (skipUserTask)
{
taskEntityManager.DeleteTask(task, null, false, false);
Leave(execution);
}
}
/// <summary>
///
/// </summary>
/// <param name="taskEntityManager"></param>
/// <param name="assignee"></param>
/// <param name="owner"></param>
/// <param name="candidateUsers"></param>
/// <param name="candidateGroups"></param>
/// <param name="task"></param>
/// <param name="expressionManager"></param>
/// <param name="execution"></param>
protected internal virtual void HandleAssignments(ITaskEntityManager taskEntityManager, string assignee, string owner, IList <string> candidateUsers, IList <string> candidateGroups, ITaskEntity task, ExpressionManager expressionManager, IExecutionEntity execution)
{
if (!string.IsNullOrWhiteSpace(assignee))
{
object assigneeExpressionValue = expressionManager.CreateExpression(assignee).GetValue(execution);
string assigneeValue = null;
if (assigneeExpressionValue != null)
{
assigneeValue = assigneeExpressionValue.ToString();
}
string assigneeUser = null;
if (string.IsNullOrWhiteSpace(assigneeValue) == false)
{
IUserServiceProxy userService = ProcessEngineServiceProvider.Resolve <IUserServiceProxy>();
var user = userService.GetUser(assigneeValue)
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
assigneeUser = user?.FullName;
task.SetVariableLocal(assigneeValue, user);
}
taskEntityManager.ChangeTaskAssigneeNoEvents(task, assigneeValue, assigneeUser);
}
if (!string.IsNullOrWhiteSpace(owner))
{
object ownerExpressionValue = expressionManager.CreateExpression(owner).GetValue(execution);
string ownerValue = null;
if (ownerExpressionValue != null)
{
ownerValue = ownerExpressionValue.ToString();
}
taskEntityManager.ChangeTaskOwner(task, ownerValue);
}
if (candidateGroups != null && candidateGroups.Count > 0)
{
foreach (string candidateGroup in candidateGroups)
{
IExpression groupIdExpr = expressionManager.CreateExpression(candidateGroup);
object value = groupIdExpr.GetValue(execution);
if (value is string @string)
{
IList <string> candidates = ExtractCandidates(@string);
task.AddCandidateGroups(candidates);
}
else if (value is ICollection)
{
task.AddCandidateGroups((ICollection <string>)value);
}
else
{
throw new ActivitiIllegalArgumentException("Expression did not resolve to a string or collection of strings");
}
}
}
if (candidateUsers != null && candidateUsers.Count > 0)
{
foreach (string candidateUser in candidateUsers)
{
IExpression userIdExpr = expressionManager.CreateExpression(candidateUser);
object value = userIdExpr.GetValue(execution);
if (value is string @string)
{
IList <string> candidates = ExtractCandidates(@string);
task.AddCandidateUsers(candidates);
}
else if (value is ICollection)
{
task.AddCandidateUsers((ICollection <string>)value);
}
else
{
throw new ActivitiException("Expression did not resolve to a string or collection of strings");
}
}
}
if (userTask.CustomUserIdentityLinks != null && userTask.CustomUserIdentityLinks.Count > 0)
{
foreach (string customUserIdentityLinkType in userTask.CustomUserIdentityLinks.Keys)
{
foreach (string userIdentityLink in userTask.CustomUserIdentityLinks[customUserIdentityLinkType])
{
IExpression idExpression = expressionManager.CreateExpression(userIdentityLink);
object value = idExpression.GetValue(execution);
if (value is string @string)
{
IList <string> userIds = ExtractCandidates(@string);
foreach (string userId in userIds)
{
task.AddUserIdentityLink(userId, customUserIdentityLinkType);
}
}
else if (value is ICollection collection)
{
IEnumerator userIdSet = collection.GetEnumerator();
while (userIdSet.MoveNext())
{
task.AddUserIdentityLink((string)userIdSet.Current, customUserIdentityLinkType);
}
}
else
{
throw new ActivitiException("Expression did not resolve to a string or collection of strings");
}
}
}
}
if (userTask.CustomGroupIdentityLinks != null && userTask.CustomGroupIdentityLinks.Count > 0)
{
foreach (string customGroupIdentityLinkType in userTask.CustomGroupIdentityLinks.Keys)
{
foreach (string groupIdentityLink in userTask.CustomGroupIdentityLinks[customGroupIdentityLinkType])
{
IExpression idExpression = expressionManager.CreateExpression(groupIdentityLink);
object value = idExpression.GetValue(execution);
if (value is string @string)
{
IList <string> groupIds = ExtractCandidates(@string);
foreach (string groupId in groupIds)
{
task.AddGroupIdentityLink(groupId, customGroupIdentityLinkType);
}
}
else if (value is ICollection collection)
{
IEnumerator groupIdSet = collection.GetEnumerator();
while (groupIdSet.MoveNext())
{
task.AddGroupIdentityLink((string)groupIdSet.Current, customGroupIdentityLinkType);
}
}
else
{
throw new ActivitiException("Expression did not resolve to a string or collection of strings");
}
}
}
}
}