private static IWfTransitionDescriptor CreateMainStreamActivities(IWfActivity activityToAppend, IWfActivity startActivity, IWfActivity endActivity, IWfTransitionDescriptor entryTransition, WfControlOperationType operationType)
{
bool useOriginal = true;
IWfTransitionDescriptor resultTransition = null;
if (activityToAppend.Process.MainStream != null)
{
IWfActivityDescriptor startActDesp = startActivity.GetMainStreamActivityDescriptor();
IWfActivityDescriptor endActDesp = endActivity.GetMainStreamActivityDescriptor();
if (startActDesp != null && endActDesp != null)
{
WfCopyMainStreamContext context = new WfCopyMainStreamContext(startActDesp, endActivity.Descriptor, entryTransition, true);
FillCopyContext(context.StartActivityDescriptor, endActDesp, context, operationType);
resultTransition = context.StartActivityDescriptor.GenerateCopiedActivitiesDescriptors(activityToAppend.Process, activityToAppend.Descriptor, context, operationType);
useOriginal = false;
}
}
if (useOriginal)
{
OriginalCreateMainStreamActivities(activityToAppend, startActivity, endActivity, entryTransition, operationType);
}
return(resultTransition);
}
/// <summary>
/// 历史实现规则。当流程不存在MainStream属性时，采用从当前流程活动中爬出来
/// </summary>
/// <param name="activityToAppend"></param>
/// <param name="startActivity"></param>
/// <param name="endActivity"></param>
/// <param name="operationType"></param>
private static void OriginalCreateMainStreamActivities(IWfActivity activityToAppend, IWfActivity startActivity, IWfActivity endActivity, IWfTransitionDescriptor entryTransition, WfControlOperationType operationType)
{
WfCopyMainStreamContext context = new WfCopyMainStreamContext(startActivity.Descriptor, endActivity.Descriptor, entryTransition, false);
FillCopyContext(context.StartActivityDescriptor, endActivity.Descriptor, context, operationType);
context.StartActivityDescriptor.GenerateCopiedActivitiesDescriptors(activityToAppend.Process, activityToAppend.Descriptor, context, operationType);
}
/// <summary>
/// 复制所有的后续活动（没有连线）
/// </summary>
/// <param name="context"></param>
/// <param name="operationType"></param>
internal void CloneRelativeActivities(IWfProcess processInstance, WfCopyMainStreamContext context, WfControlOperationType operationType)
{
if (this.NeedCopy)
{
if (context.ClonedActivities.ContainsKey(this.TemplateActivityDescriptor.Key) == false)
{
IWfActivityDescriptor clonedActDesp = CreateClonedActivityDescriptor(processInstance, context, operationType);
context.ClonedActivities.Add(this.TemplateActivityDescriptor.Key, clonedActDesp);
this.ToActivities.ForEach(sub => sub.ActivityNode.CloneRelativeActivities(processInstance, context, operationType));
}
}
}
private IWfActivityDescriptor CreateClonedActivityDescriptor(IWfProcess processInstance, WfCopyMainStreamContext context, WfControlOperationType operationType)
{
WfActivityDescriptor result = this.TemplateActivityDescriptor.Clone() as WfActivityDescriptor;
result.Key = processInstance.Descriptor.FindNotUsedActivityKey();
//2012/12/03 修改克隆时向开始环节转换时需要设置的属性
if (this.TemplateActivityDescriptor.ActivityType == WfActivityType.InitialActivity && operationType == WfControlOperationType.Return)
{
ResetPropertiesByDefinedName(result, "DefaultReturnToInitialActivityTemplate");
}
//如果模板活动不是主线活动，则使用该活动的关联Key，否则去实例上查找主线活动对应活动的关联Key。
if (this.TemplateActivityDescriptor.IsMainStreamActivity == false)
{
result.AssociatedActivityKey = this.TemplateActivityDescriptor.GetAssociatedActivity().Key;
result.ClonedKey = this.TemplateActivityDescriptor.Key;
}
else
{
IWfActivityDescriptor matchActDesp = FindActivityDescriptorByMainStreamKey(processInstance, this.TemplateActivityDescriptor.Key);
if (matchActDesp != null)
{
result.AssociatedActivityKey = matchActDesp.Key;
result.ClonedKey = matchActDesp.Key;
}
}
//如果原来活动上没有配置资源，则使用原来活动实例的指派人作为资源
if (result.Resources.Count == 0)
{
result.Resources.CopyFrom(this.TemplateActivityDescriptor.Instance.Assignees.ToResources());
}
WfActivityBase newActivity = WfActivityBase.CreateActivityInstance(result, processInstance);
if (context.IsMainStream)
{
newActivity.MainStreamActivityKey = this.TemplateActivityDescriptor.Key;
}
//沈峥调整，生成资源
if (result.Resources.Count == 0)
{
newActivity.Candidates.CopyFrom(this.TemplateActivityDescriptor.Instance.Candidates);
if (newActivity.Candidates.Count == 0)
{
IWfActivityDescriptor matchActDesp = FindActivityDescriptorByMainStreamKey(processInstance, this.TemplateActivityDescriptor.Key);
if (matchActDesp != null && OguBase.IsNotNullOrEmpty(matchActDesp.Instance.Operator))
{
newActivity.Candidates.Add(matchActDesp.Instance.Operator);
}
}
newActivity.Assignees.CopyFrom(newActivity.Candidates);
}
else
{
if (newActivity.Descriptor.Properties.GetValue("AutoGenerateCadidates", true))
{
newActivity.GenerateCandidatesFromResources();
newActivity.Assignees.Clear();
newActivity.Assignees.CopyFrom(newActivity.Candidates);
}
else
{
newActivity.Candidates.Clear();
newActivity.Assignees.Clear();
//仅复制能够和直接转换为用户的角色
foreach (IUser user in result.Resources.ToUsers())
{
newActivity.Candidates.Add(user);
newActivity.Assignees.Add(user);
}
}
}
processInstance.Descriptor.Activities.Add(result);
return(result);
}
/// <summary>
/// 克隆后续的活动并且连线
/// </summary>
/// <param name="endActivity"></param>
/// <param name="context"></param>
/// <param name="operationType"></param>
private void GenerateSubActivitiesDescriptors(IWfProcess processInstance, IWfActivityDescriptor endActivity, IWfActivityDescriptor lastActDesp, WfCopyMainStreamContext context, WfControlOperationType operationType)
{
foreach (WfCopyMainStreamSubActivityNode subNode in this.ToActivities)
{
IWfActivityDescriptor targetActDesp = null;
if (subNode.ActivityNode.NeedCopy)
{
if (context.ClonedActivities.TryGetValue(subNode.ActivityNode.TemplateActivityDescriptor.Key, out targetActDesp) == false)
{
targetActDesp = subNode.ActivityNode.CreateClonedActivityDescriptor(processInstance, context, operationType);
context.ClonedActivities.Add(subNode.ActivityNode.TemplateActivityDescriptor.Key, targetActDesp);
}
}
else
{
targetActDesp = subNode.ActivityNode.OriginalActivityDescriptor;
//targetActDesp = subNode.ActivityNode.TemplateActivityDescriptor;
}
//本身是复制点，则必须复制线
if (this.NeedCopy)
{
WfTransitionDescriptor clonedTransition = (WfTransitionDescriptor)((WfTransitionDescriptor)subNode.FromTransition).Clone();
//沈峥注释，2015-6-25，FindNotUsedTransitionKey应该从实例流程查找
//if (clonedTransition.Key.IsNullOrEmpty())
// clonedTransition.Key = subNode.ActivityNode.TemplateActivityDescriptor.Process.FindNotUsedTransitionKey();
if (clonedTransition.Key.IsNullOrEmpty())
{
clonedTransition.Key = endActivity.Process.FindNotUsedTransitionKey();
}
if (this.IsEndActivity)
{
string targetAssociatedKey = null;
//沈峥调整，2015-1-24，目标点非Clone点且是加签点
if (targetActDesp.ClonedKey.IsNullOrEmpty() && targetActDesp.GetAssociatedActivity() != null)
{
targetAssociatedKey = targetActDesp.GetAssociatedActivity().Key;
}
if (lastActDesp != null && targetAssociatedKey != null && lastActDesp.GetAssociatedActivity().Key == targetAssociatedKey)
{
targetActDesp = lastActDesp;
}
}
endActivity.ToTransitions.AddTransition(targetActDesp, clonedTransition);
}
subNode.ActivityNode.GenerateSubActivitiesDescriptors(processInstance, targetActDesp, lastActDesp, context, operationType);
}
}
/// <summary>
/// 将MainStreamContext中的活动，复制到某个活动后
/// </summary>
/// <param name="processInstance"></param>
/// <param name="activityToAppend"></param>
/// <param name="context"></param>
/// <param name="operationType"></param>
/// <returns>返回的第一个Clone活动的出线</returns>
public IWfTransitionDescriptor GenerateCopiedActivitiesDescriptors(IWfProcess processInstance, IWfActivityDescriptor activityToAppend, WfCopyMainStreamContext context, WfControlOperationType operationType)
{
IWfTransitionDescriptor resultTransition = null;
CloneRelativeActivities(activityToAppend.ProcessInstance, context, operationType);
IWfActivityDescriptor clonedActDesp = null;
if (context.ClonedActivities.TryGetValue(this._TemplateActivityDescriptor.Key, out clonedActDesp))
{
//如果本活动是模板生成的动态活动，且退件的目标不是模板，则删除后续的动态活动
if (activityToAppend.GeneratedByTemplate && clonedActDesp.GeneratedByTemplate == false)
{
IWfTransitionDescriptor templateTransition = activityToAppend.ToTransitions.Find(t => t.GeneratedByTemplate);
while (templateTransition != null)
{
IWfActivityDescriptor actDesp = templateTransition.ToActivity;
//如果线的目标活动是动态活动，则删除，否则忽略
if (actDesp.GeneratedByTemplate)
{
actDesp.Instance.Delete();
}
templateTransition = templateTransition.ToActivity.ToTransitions.Find(t => t.GeneratedByTemplate);
}
}
IWfTransitionDescriptor lastTransition = context.EntryTransition;
if (lastTransition == null)
{
lastTransition = activityToAppend.ToTransitions.GetAllCanTransitForwardTransitions().FindDefaultSelectTransition();
}
IWfActivityDescriptor lastActDesp = null;
if (lastTransition != null)
{
lastActDesp = lastTransition.ToActivity;
}
string entryTransitionKey = (lastTransition != null) ? lastTransition.Key : string.Empty;
//将第一个克隆的活动与原流程的某一个活动关联。
//保留退回线
IList <IWfTransitionDescriptor> originalBackwardTransitions = activityToAppend.ToTransitions.FindAll(t => t.IsBackward);
activityToAppend.ToTransitions.Clear();
foreach (WfTransitionDescriptor t in originalBackwardTransitions)
{
WfTransitionDescriptor newBackwardTransition = (WfTransitionDescriptor)t.Clone();
newBackwardTransition.Key = activityToAppend.Process.FindNotUsedTransitionKey();
activityToAppend.ToTransitions.AddTransition(t.ToActivity, newBackwardTransition);
}
//activityToAppend.ToTransitions.CopyFrom(originalBackwardTransitions);
IWfTransitionDescriptor newTransition = JoinOriginalActivityToClonedActivity(activityToAppend, clonedActDesp, lastTransition);
resultTransition = newTransition;
//将自动流转设置为False
if (clonedActDesp.Properties.GetValue("AutoMoveTo", false))
{
clonedActDesp.Properties.TrySetValue("AutoMoveTo", false);
}
GenerateSubActivitiesDescriptors(processInstance, clonedActDesp, lastActDesp, context, operationType);
}
return(resultTransition);
}
private static void FillCopyContext(WfCopyMainStreamActivityNode currentActivity, IWfActivityDescriptor endActivity, WfCopyMainStreamContext context, WfControlOperationType operationType)
{
foreach (IWfTransitionDescriptor transition in currentActivity.TemplateActivityDescriptor.ToTransitions.GetNotDynamicActivityTransitions())
{
if (context.IsElapsedTransition(transition) == false)
{
IWfActivityDescriptor nextActivityDesp = transition.ToActivity;
if (operationType == WfControlOperationType.Return)
{
nextActivityDesp = FindNotReturnSkippedActivity(transition.ToActivity);
}
bool nextIsEndActivity = nextActivityDesp.Key == endActivity.Key;
IWfActivityDescriptor originalActDesp = nextActivityDesp;
if (context.IsMainStream)
{
originalActDesp = context.EndActivityDescriptor.FindSubsequentActivity((t, actDesp) =>
t.IsBackward == false && actDesp.Instance.MainStreamActivityKey == nextActivityDesp.Key);
}
WfCopyMainStreamActivityNode toActivity = new WfCopyMainStreamActivityNode(
nextActivityDesp,
originalActDesp,
IsSubsequentActivity(nextActivityDesp, endActivity) == false,
nextIsEndActivity);
currentActivity.ToActivities.Add(new WfCopyMainStreamSubActivityNode(transition, toActivity));
context.AddElapsedTransition(transition);
if (currentActivity.TemplateActivityDescriptor.Key != endActivity.Key)
{
FillCopyContext(toActivity, endActivity, context, operationType);
}
}
}
}