/// <summary>
/// 将主线活动转换为实例活动
/// </summary>
/// <param name="msActivities"></param>
/// <returns></returns>
private WfMainStreamActivityDescriptorCollection ChangeMainStreamActivitiesToInstanceActivities(WfMainStreamActivityDescriptorCollection msActivities)
{
WfMainStreamActivityDescriptorCollection result = new WfMainStreamActivityDescriptorCollection();
foreach (WfMainStreamActivityDescriptor msActivity in msActivities)
{
IList<IWfActivity> matchedActivities = this.Activities.FindAll(activity => activity.MainStreamActivityKey == msActivity.Activity.Key);
IWfActivity matchedActivity = FindMatchedInstanceActivity(matchedActivities);
if (matchedActivity != null)
{
WfMainStreamActivityDescriptor resultMSActivity = new WfMainStreamActivityDescriptor(matchedActivity.Descriptor);
resultMSActivity.Elapsed = matchedActivities.Exists(activity => activity.Status == WfActivityStatus.Completed ||
activity.Status == WfActivityStatus.Aborted);
result.Add(resultMSActivity);
}
}
return result;
}
/// <summary>
/// 得到流程实例中的主线活动
/// </summary>
/// <param name="includeAllElapsedActivities">是否包含所有经过的活动</param>
/// <returns></returns>
private WfMainStreamActivityDescriptorCollection GetProcessInstanceMainStreamActivities(bool includeAllElapsedActivities)
{
WfMainStreamActivityDescriptorCollection msActivities = new WfMainStreamActivityDescriptorCollection();
IList<IWfTransitionDescriptor> matchedTransitions = null;
this.MainStream.ProbeAllActivities(actArgs =>
{
matchedTransitions = FindMatchedTransitions(actArgs.ActivityDescriptor, includeAllElapsedActivities);
WfMainStreamActivityDescriptor msActivity = new WfMainStreamActivityDescriptor(actArgs.ActivityDescriptor);
msActivity.Level = actArgs.Level;
//当后面有同样的环节后，用后面的环节覆盖前面已经存在的主线活动
IWfMainStreamActivityDescriptor existedMSActivity = msActivities[actArgs.ActivityDescriptor.Key];
if (existedMSActivity != null)
{
if (existedMSActivity.Level < msActivity.Level)
{
msActivities.Remove(msa => msa.Activity.Key == msActivity.Activity.Key);
msActivities.Add(msActivity);
}
}
else
msActivities.Add(msActivity);
return true;
},
transition =>
matchedTransitions.Exists(t => t == transition)
);
//按照遍历的级别深度排序
msActivities.Sort(new Comparison<IWfMainStreamActivityDescriptor>((msa1, msa2) => msa1.Level - msa2.Level));
WfMainStreamActivityDescriptorCollection result = ChangeMainStreamActivitiesToInstanceActivities(msActivities);
FillAsscioatedActivities(result);
return result;
}
