private List <ExecutionRequestParameters> FillExecutionRequestParameters(Guid processId, ProcessInstance processInstance, IEnumerable <TransitionDefinition> transitions)
{
var newExecutionParameters = new List <ExecutionRequestParameters>();
foreach (var transition in transitions)
{
var parametersLocal = ExecutionRequestParameters.Create(processInstance.ProcessId,
processInstance.ProcessParameters,
transition, true);
if (transition.Trigger.Type != TriggerType.Auto || transition.Restrictions.Count() > 0)
{
var actors = GetActors(processId, transition);
parametersLocal.AddParameterInContainer(
ParameterDefinition.Create(DefaultDefinitions.ParameterIdentityIds,
actors));
}
if (transition.Trigger.Type == TriggerType.Command)
{
parametersLocal.AddParameterInContainer(ParameterDefinition.Create(DefaultDefinitions.ParameterCurrentCommand, (object)transition.Trigger.Command.Name));
}
newExecutionParameters.Add(parametersLocal);
}
return(newExecutionParameters);
}
private void SetStateWithExecution(Guid identityId,
Guid impersonatedIdentityId,
IDictionary <string, object> parameters,
ActivityDefinition activityToSet,
ProcessInstance processInstance)
{
SetProcessNewStatus(processInstance, ProcessStatus.Running);
IEnumerable <TransitionDefinition> transitions;
try
{
PersistenceProvider.FillSystemProcessParameters(processInstance);
PersistenceProvider.FillPersistedProcessParameters(processInstance);
var parametersLocal = new List <ParameterDefinitionWithValue>();
foreach (var commandParameter in parameters)
{
var parameterDefinition = processInstance.ProcessScheme.GetParameterDefinition(commandParameter.Key);
if (parameterDefinition != null)
{
parametersLocal.Add(ParameterDefinition.Create(parameterDefinition, commandParameter.Value));
}
}
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterCurrentCommand,
(object)DefaultDefinitions.CommandSetState.Name));
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterIdentityId, identityId));
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterImpersonatedIdentityId,
impersonatedIdentityId));
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterSchemeId, processInstance.SchemeId));
parametersLocal.ForEach(processInstance.AddParameter);
}
catch (Exception)
{
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
throw;
}
//TODO Убрать после обработки команд
try
{
Bus.QueueExecution(ExecutionRequestParameters.Create(processInstance.ProcessId,
processInstance.ProcessParameters,
activityToSet,
ConditionDefinition.Always));
}
catch (Exception ex)
{
Logger.Log.Error(string.Format("Workflow Id={0}", processInstance.ProcessId), ex);
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
throw;
}
}
/// <summary>
/// 执行流程起始节点出的初始化活动
/// </summary>
/// <param name="processInstance"></param>
private void ExecuteRootActivity(ProcessInstance processInstance)
{
PersistenceProvider.FillProcessParameters(processInstance);
processInstance.AddParameter(ParameterDefinition.Create(DefaultDefinitions.ParameterSchemeId, processInstance.SchemeId));
//TODO Убрать после обработки команд
try
{
Bus.QueueExecution(ExecutionRequestParameters.Create(processInstance.ProcessId,
processInstance.ProcessParameters,
processInstance.ProcessScheme.InitialActivity,
ConditionDefinition.Always));
}
catch (Exception ex)
{
Logger.Log.Error(string.Format("Error Execute Root Workflow Id={0}", processInstance.ProcessId), ex);
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
throw;
}
}
//private object _timerSaveLock = new object();
//void _runtimeTimer_NeedSave(object sender, EventArgs e)
//{
// lock (_timerSaveLock)
// {
// _runtimePersistence.SaveTimer(Id, _runtimeTimer);
// }
//}
private void TimerComplete(object sender, RuntimeTimerEventArgs e)
{
TransitionDefinition currentTimerTransition;
ProcessInstance processInstance;
try
{
processInstance = Builder.GetProcessInstance(e.ProcessId);
PersistenceProvider.FillProcessParameters(processInstance);
currentTimerTransition =
processInstance.ProcessScheme.GetTimerTransitionForActivity(processInstance.CurrentActivity).
FirstOrDefault(p => p.Trigger.Timer.Name == e.TimerName);
}
catch (Exception ex)
{
Logger.Log.Error("Error Timer Complete Workflow UNKNOWN", ex);
throw;
}
if (currentTimerTransition != null)
{
try
{
SetProcessNewStatus(processInstance, ProcessStatus.Running);
var parametersLocal = new List <ParameterDefinitionWithValue>();
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterIdentityId, Guid.Empty));
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterImpersonatedIdentityId, Guid.Empty));
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterSchemeId, processInstance.SchemeId));
var newExecutionParameters = new List <ExecutionRequestParameters>();
newExecutionParameters.Add(ExecutionRequestParameters.Create(processInstance.ProcessId, processInstance.ProcessParameters, currentTimerTransition));
Bus.QueueExecution(newExecutionParameters);
}
catch (Exception ex)
{
Logger.Log.Error(string.Format("Error Timer Complete Workflow Id={0}", processInstance.ProcessId), ex);
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
}
}
}
public void PreExecute(Guid processId)
{
var processInstance = Builder.GetProcessInstance(processId);
//从这里分析什么是SystemProcessParameters，系统参数
PersistenceProvider.FillSystemProcessParameters(processInstance);
var activity = processInstance.ProcessScheme.FindActivity(processInstance.CurrentActivityName);
var currentActivity = processInstance.ProcessScheme.InitialActivity;
if (activity.State != currentActivity.State)
{
return; //TODO Workflow Temporary
}
var executor = new ActivityExecutor(true);
processInstance.AddParameter(ParameterDefinition.Create(DefaultDefinitions.ParameterProcessId, processId));
processInstance.AddParameter(ParameterDefinition.Create(DefaultDefinitions.ParameterSchemeId, processInstance.SchemeId));
if (currentActivity.HavePreExecutionImplementation)
{
var response = executor.Execute(new List <ExecutionRequestParameters>
{
ExecutionRequestParameters.Create(processInstance.ProcessId,
processInstance.ProcessParameters,
processInstance.ProcessScheme.InitialActivity,
ConditionDefinition.Always,
true)
});
if (PreExecuteProcessResponse(processInstance, response))
{
return;
}
}
do
{
if (!string.IsNullOrEmpty(currentActivity.State))
{
processInstance.AddParameter(ParameterDefinition.Create(DefaultDefinitions.ParameterCurrentState, (object)currentActivity.State));
}
var transitions =
processInstance.ProcessScheme.GetPossibleTransitionsForActivity(currentActivity).Where(t => t.Classifier == TransitionClassifier.Direct);
currentActivity = null;
var autotransitions = transitions.Where(t => t.Trigger.Type == TriggerType.Auto);
var newExecutionParameters = FillExecutionRequestParameters(processId, processInstance, autotransitions);
if (newExecutionParameters.Count > 0)
{
var response = executor.Execute(newExecutionParameters);
if (!PreExecuteProcessResponse(processInstance, response))
{
currentActivity =
processInstance.ProcessScheme.FindTransition(response.ExecutedTransitionName).To;
}
}
if (currentActivity == null)
{
var commandTransitions = transitions.Where(t => t.Trigger.Type == TriggerType.Command);
if (commandTransitions.Count(t => t.Condition.Type == ConditionType.Always && !t.Condition.ResultOnPreExecution.HasValue) < 2) //Это не является ошибкой валидациии при разных командах
{
newExecutionParameters = FillExecutionRequestParameters(processId, processInstance,
commandTransitions);
if (newExecutionParameters.Count > 0)
{
var response = executor.Execute(newExecutionParameters);
if (!PreExecuteProcessResponse(processInstance, response))
{
currentActivity =
processInstance.ProcessScheme.FindTransition(response.ExecutedTransitionName).To;
}
}
}
}
} while (currentActivity != null && !currentActivity.IsFinal);
}
/// <summary>
/// 执行审批流程中的命令WorkflowCommand
/// </summary>
/// <param name="processId"></param>
/// <param name="identityId">执行该命令的用户ID</param>
/// <param name="impersonatedIdentityId">针对谁执行的，对方的用户ID,因为审批流程中的活动总是在两个或者多个人之间流转的
/// 如果一个人执行活动，并同时向多个人分发，怎么办，例如 会签的情况
/// </param>
/// <param name="command"></param>
public void ExecuteCommand(Guid processId, Guid identityId, Guid impersonatedIdentityId, WorkflowCommand command)
{
//TODO Workflow Temporary
//if (!command.Validate())
// throw new CommandNotValidException();
var processInstance = Builder.GetProcessInstance(processId);
SetProcessNewStatus(processInstance, ProcessStatus.Running);
IEnumerable <TransitionDefinition> transitions;
try
{
//根据当前的流程实例填写系统定义的流程参数及参数值，系统要统一维护该参数值，
//以保证状态和流程的运转
PersistenceProvider.FillSystemProcessParameters(processInstance);
if (processInstance.CurrentActivityName != command.ValidForActivityName)
{
throw new CommandNotValidForStateException();
}
transitions =
processInstance.ProcessScheme.GetCommandTransitionForActivity(
processInstance.ProcessScheme.FindActivity(processInstance.CurrentActivityName),
command.CommandName);
if (!transitions.Any())
{
throw new InvalidOperationException();
}
}
catch (Exception ex)
{
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
throw;
}
//命令需要的参数及参数值
var parametersLocal = new List <ParameterDefinitionWithValue>();
try
{
foreach (var commandParameter in command.Parameters)
{
//从processInstance获取命令需要的参数值
var parameterDefinition = processInstance.ProcessScheme.GetParameterDefinition(commandParameter.Name);
if (parameterDefinition != null)
{
parametersLocal.Add(ParameterDefinition.Create(parameterDefinition, commandParameter.Value));
}
}
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterCurrentCommand,
(object)command.CommandName));
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterIdentityId, identityId));
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterImpersonatedIdentityId,
impersonatedIdentityId));
parametersLocal.Add(ParameterDefinition.Create(DefaultDefinitions.ParameterSchemeId,
processInstance.SchemeId));
parametersLocal.ForEach(processInstance.AddParameter);
//保存运行前的状态
PersistenceProvider.SavePersistenceParameters(processInstance);
PersistenceProvider.FillPersistedProcessParameters(processInstance);
}
catch (Exception)
{
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
throw;
}
var newExecutionParameters = new List <ExecutionRequestParameters>();
newExecutionParameters.AddRange(
transitions.Select(
at =>
ExecutionRequestParameters.Create(processInstance.ProcessId, processInstance.ProcessParameters, at)));
try
{
Bus.QueueExecution(newExecutionParameters);
}
catch (Exception ex)
{
Logger.Log.Error(string.Format("Error Execute Command Workflow Id={0}", processInstance.ProcessId), ex);
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
throw;
}
}
//通过注入的规则(IWorkflowBus)，方法执行完成后调用本方法。
internal void BusExecutionComplete(object sender, ExecutionResponseEventArgs e)
{
var executionResponseParameters = e.Parameters;
var processInstance = Builder.GetProcessInstance(executionResponseParameters.ProcessId);
PersistenceProvider.FillSystemProcessParameters(processInstance);
//TODO Сделать метод филл CurrentActivity
if (executionResponseParameters.IsEmplty)
{
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
//var timerTransitions =
// processInstance.ProcessScheme.GetTimerTransitionForActivity(processInstance.CurrentActivity).ToList();
//timerTransitions.ForEach(p=>_runtimeTimer.UpdateTimer(processInstance.ProcessId,p.Trigger.Timer));
return;
}
if (executionResponseParameters.IsError)
{
var executionErrorParameters = executionResponseParameters as ExecutionResponseParametersError;
Logger.Log.Error(string.Format("Error Execution Complete Workflow Id={0}", processInstance.ProcessId), executionErrorParameters.Exception);
if (string.IsNullOrEmpty(executionErrorParameters.ExecutedTransitionName))
{
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
throw executionErrorParameters.Exception;
}
var transition = processInstance.ProcessScheme.FindTransition(executionErrorParameters.ExecutedTransitionName);
var onErrorDefinition = transition.OnErrors.Where(
oe => executionErrorParameters.Exception.GetType().Equals(oe.ExceptionType)).
OrderBy(oe => oe.Priority).FirstOrDefault() ??
transition.OnErrors.Where(
oe => oe.ExceptionType.IsAssignableFrom(executionErrorParameters.Exception.GetType())).
OrderBy(oe => oe.Priority).FirstOrDefault();
if (onErrorDefinition == null)
{
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
throw executionErrorParameters.Exception;
}
if (onErrorDefinition.ActionType == OnErrorActionType.SetActivity)
{
var from = processInstance.CurrentActivity;
var to = processInstance.ProcessScheme.FindActivity((onErrorDefinition as SetActivityOnErrorDefinition).NameRef);
PersistenceProvider.UpdatePersistenceState(processInstance, TransitionDefinition.Create(from, to));
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
}
throw executionErrorParameters.Exception;
//return;
}
try
{
ActivityDefinition newCurrentActivity;
if (string.IsNullOrEmpty(executionResponseParameters.ExecutedTransitionName))
{
if (executionResponseParameters.ExecutedActivityName == processInstance.ProcessScheme.InitialActivity.Name)
{
newCurrentActivity = processInstance.ProcessScheme.InitialActivity;
}
else
{
var from = processInstance.CurrentActivity;
var to = processInstance.ProcessScheme.FindActivity(executionResponseParameters.ExecutedActivityName);
newCurrentActivity = to;
PersistenceProvider.UpdatePersistenceState(processInstance, TransitionDefinition.Create(from, to));
}
}
else
{
var executedTransition =
processInstance.ProcessScheme.FindTransition(executionResponseParameters.ExecutedTransitionName);
newCurrentActivity = executedTransition.To;
PersistenceProvider.UpdatePersistenceState(processInstance, executedTransition);
}
FillParameters(processInstance, (executionResponseParameters as ExecutionResponseParametersComplete));
PersistenceProvider.SavePersistenceParameters(processInstance);
var autoTransitions =
processInstance.ProcessScheme.GetAutoTransitionForActivity(newCurrentActivity).ToList();
if (autoTransitions.Count() < 1)
{
SetProcessNewStatus(processInstance,
newCurrentActivity.IsFinal ? ProcessStatus.Finalized : ProcessStatus.Idled);
//var timerTransitions =
//processInstance.ProcessScheme.GetTimerTransitionForActivity(newCurrentActivity).ToList();
//timerTransitions.ForEach(p => _runtimeTimer.SetTimer(processInstance.ProcessId, p.Trigger.Timer));
return;
}
PersistenceProvider.FillProcessParameters(processInstance);
var newExecutionParameters = new List <ExecutionRequestParameters>();
newExecutionParameters.AddRange(
autoTransitions.Select(
at =>
ExecutionRequestParameters.Create(processInstance.ProcessId, processInstance.ProcessParameters,
at)));
Bus.QueueExecution(newExecutionParameters);
}
catch (ActivityNotFoundException)
{
SetProcessNewStatus(processInstance, ProcessStatus.Terminated);
}
//TODO Обработка ошибок
catch (Exception ex)
{
Logger.Log.Error(string.Format("Error Execution Complete Workflow Id={0}", processInstance.ProcessId), ex);
SetProcessNewStatus(processInstance, ProcessStatus.Idled);
}
}
