//通过Flowchart节点和自定义活动列表解析NTFE-BPM活动树
private Taobao.Workflow.Activities.Statements.WorkflowActivity ParseWorkflowActivity(XElement root
, IList <ActivitySetting> activitySettings
, bool isCacheMetaData)
{
var activity = new WorkflowActivity();
var variableElements = root.Descendants("Variable").ToList();
//设置变量集合
this.SetVariablesForActivity(variableElements, activity);
var nodeDataElements = root.Descendants("NodeData")
.Where(o => o.Attribute("Category").Value != "Comment")
.ToList();
var linkDataElements = root.Descendants("LinkData").ToList();
var flowNodes = new Dictionary <string, FlowNodeInfo>(); //定义点集合
var temp = new List <string>();
foreach (var nodeDataElement in nodeDataElements)
{
var category = nodeDataElement.Attribute("Category").Value;
if (category == "HumanPar" || category == "ServerPar" || category == "ChildPar" || category == "Start")
{
continue;
}
var activityName = nodeDataElement.Attribute("Text").Value;
var key = nodeDataElement.Attribute("Key").Value;
if (temp.Contains(activityName))
{
throw new InvalidOperationException("流程中包括重复名称的节点，请检查！");
}
temp.Add(activityName);
var activitySetting = activitySettings.FirstOrDefault(o => o.ActivityName == activityName);
if (activitySetting == null)
{
throw new Exception(string.Format(@"解析出错，找不到名称为“{0}”的ActivitySetting", activityName));
}
Taobao.Activities.Statements.FlowStep flowStep = null;
if (activitySetting is HumanSetting)
{
var humanSetting = activitySetting as HumanSetting;
//创建人工节点
flowStep = WorkflowBuilder.CreateHuman(activitySetting
, activitySetting.ActivityName
, new GetUsers(humanSetting.ActionerRule.Scripts)
, activity.CustomActivityResult
, new Dictionary <string, Taobao.Activities.Statements.FlowNode>()
, null);
}
else if (activitySetting is ServerSetting)
{
var customSetting = activitySetting as CustomSetting;
var serverSetting = activitySetting as ServerSetting;
var resultTo = activity.Variables.ToList().FirstOrDefault(o => o.Name == serverSetting.ResultTo);
//创建人工节点
flowStep = WorkflowBuilder.CreateServer(activitySetting
, activitySetting.ActivityName
, serverSetting.Script
, customSetting.FinishRule.Scripts
, resultTo != null ? (Variable <string>)resultTo : null
, activity.CustomActivityResult
, new Dictionary <string, Taobao.Activities.Statements.FlowNode>()
, null);
}
else if (activitySetting is SubProcessSetting)
{
var customSetting = activitySetting as CustomSetting;
var subProcessSetting = activitySetting as SubProcessSetting;
//创建子流程节点
flowStep = WorkflowBuilder.CreateSubProcess(activitySetting
, activitySetting.ActivityName
, customSetting.FinishRule.Scripts
, activity.CustomActivityResult
, new Dictionary <string, Taobao.Activities.Statements.FlowNode>()
, null);
}
else if (activitySetting is ParallelSetting)
{
IList <Custom> customs = new List <Custom>();
//遍历customs
var customParElements = nodeDataElements.Where(o => o.Attribute("SubGraphKey") != null && o.Attribute("SubGraphKey").Value == key).ToList();
foreach (var customParElement in customParElements)
{
var customeCategory = customParElement.Attribute("Category").Value;
var customeActivityName = customParElement.Attribute("Text").Value;
if (temp.Contains(customeActivityName))
{
throw new InvalidOperationException("流程中包括重复名称的节点，请检查！");
}
temp.Add(customeActivityName);
var customActivitySetting = activitySettings.FirstOrDefault(o => o.ActivityName == customeActivityName);
if (customActivitySetting == null)
{
throw new Exception(string.Format(@"解析出错，找不到名称为“{0}”的ActivitySetting", customeActivityName));
}
if (customActivitySetting is HumanSetting)
{
var humanSetting = customActivitySetting as HumanSetting;
//创建并行容器中人工节点
var human = WorkflowBuilder.CreateHuman(customActivitySetting
, customActivitySetting.ActivityName
, new GetUsers(humanSetting.ActionerRule.Scripts)
, activity.CustomActivityResult);
customs.Add(human);
}
else if (customActivitySetting is ServerSetting)
{
var customSetting = customActivitySetting as CustomSetting;
var serverSetting = customActivitySetting as ServerSetting;
var resultTo = activity.Variables.ToList().FirstOrDefault(o => o.Name == serverSetting.ResultTo);
//创建并行容器中自动节点
var server = WorkflowBuilder.CreateServer(customActivitySetting
, customActivitySetting.ActivityName
, serverSetting.Script
, customSetting.FinishRule.Scripts
, resultTo != null ? (Variable <string>)resultTo : null
, activity.CustomActivityResult);
customs.Add(server);
}
else if (customActivitySetting is SubProcessSetting)
{
var customSetting = customActivitySetting as CustomSetting;
var subProcessSetting = customActivitySetting as SubProcessSetting;
//创建并行容器中子流程节点
var subprocess = WorkflowBuilder.CreateSubProcess(customActivitySetting
, customActivitySetting.ActivityName
, customSetting.FinishRule.Scripts
, activity.CustomActivityResult);
customs.Add(subprocess);
}
}
//创建并行容器节点
flowStep = WorkflowBuilder.CreateParallel(activitySetting
, activitySetting.ActivityName
, (activitySetting as ParallelSetting).CompletionCondition
, null
, customs.ToArray());
}
flowNodes.Add(key, new FlowNodeInfo()
{
FlowStep = flowStep
});
}
if (nodeDataElements.Count(o => o.Attribute("Category").Value == "Start") != 1)
{
throw new InvalidOperationException("不包括Start开始节点");
}
//创建流程节点
this.BuildFlowNode(flowNodes, linkDataElements);
var startLinkElement = linkDataElements.FirstOrDefault(o => o.Attribute("From").Value == "Start");
if (startLinkElement == null)
{
throw new InvalidOperationException("不包含Start到初始点连线");
}
activity.Body.StartNode = flowNodes[startLinkElement.Attribute("To").Value].FlowStep;
//初始化Flowchart节点的元素
if (isCacheMetaData)
{
CacheMetadata(activity.Body);
}
return(activity);
}
//通过Flowchart节点和自定义活动列表解析NTFE-BPM活动树
private Statements.WorkflowActivity ParseWorkflowActivity(System.Activities.Statements.Flowchart flowchart
, IList <ActivitySetting> activitySettings
, bool isCacheMetaData)
{
var activity = new WorkflowActivity();
//设置变量集合
this.SetVariablesForActivity(flowchart.Variables, activity);
var flowNodes = new Dictionary <int, FlowNodeInfo>(); //定义点集合
var flowLines = new List <FlowLineInfo>(); //定义线段集合
var temp = new List <string>();
foreach (var wf_node in flowchart.Nodes)
{
if (wf_node is System.Activities.Statements.FlowSwitch <string> )
{
var wf_FlowSwitch = wf_node as System.Activities.Statements.FlowSwitch <string>;
var literal = (System.Activities.Expressions.Literal <string>)wf_FlowSwitch.Expression;
if (literal == null || literal.Value == string.Empty)
{
throw new Exception(@"流程中包括名称为空的节点，请检查！");
}
var expression = literal.Value;
var activityName = ParseActivityName(expression);
if (temp.Contains(activityName))
{
throw new InvalidOperationException("流程中包括重复名称的节点，请检查！");
}
temp.Add(activityName);
var activitySetting = activitySettings.FirstOrDefault(o => o.ActivityName == activityName);
if (activitySetting == null)
{
throw new Exception(string.Format(@"解析出错，找不到名称为“{0}”的ActivitySetting", activityName));
}
Taobao.Activities.Statements.FlowStep flowStep = null;
if (activitySetting is HumanSetting)
{
var humanSetting = activitySetting as HumanSetting;
//创建人工节点
flowStep = WorkflowBuilder.CreateHuman(activitySetting
, activitySetting.ActivityName
, new GetUsers(humanSetting.ActionerRule.Scripts)
, activity.CustomActivityResult
, new Dictionary <string, Taobao.Activities.Statements.FlowNode>()
, null);
}
else if (activitySetting is ServerSetting)
{
var customSetting = activitySetting as CustomSetting;
var serverSetting = activitySetting as ServerSetting;
//创建自动节点
var resultTo = activity.Variables.ToList().FirstOrDefault(o => o.Name == serverSetting.ResultTo);
flowStep = WorkflowBuilder.CreateServer(activitySetting
, activitySetting.ActivityName
, serverSetting.Script
, customSetting.FinishRule.Scripts
, resultTo != null ? (Variable <string>)resultTo : null
, activity.CustomActivityResult
, new Dictionary <string, Taobao.Activities.Statements.FlowNode>()
, null);
}
flowNodes.Add(wf_FlowSwitch.GetHashCode(), new FlowNodeInfo()
{
WF_FlowNode = wf_FlowSwitch, FlowStep = flowStep
});
}
else if (wf_node is System.Activities.Statements.FlowStep)
{
var wf_FlowStep = wf_node as System.Activities.Statements.FlowStep;
if (typeof(System.Activities.Statements.Parallel).IsAssignableFrom(wf_FlowStep.Action.GetType()))
{
IList <Custom> customs = new List <Custom>();
var wf_Parallel = wf_FlowStep.Action as System.Activities.Statements.Parallel;
foreach (var wf_Activity in wf_Parallel.Branches)
{
if (typeof(ICustom).IsAssignableFrom(wf_Activity.GetType()))
{
var expression = (wf_Activity as ICustom).DisplayName;
if (string.IsNullOrEmpty(expression))
{
throw new Exception(@"流程中包括名称为空的节点，请检查！");
}
var activityName = ParseActivityName(expression);
if (temp.Contains(activityName))
{
throw new InvalidOperationException("流程中包括重复名称的节点，请检查！");
}
temp.Add(activityName);
var activitySetting = activitySettings.FirstOrDefault(o => o.ActivityName == activityName);
if (activitySetting == null)
{
throw new Exception(string.Format(@"解析出错，找不到名称为“{0}”的ActivitySetting", activityName));
}
if (activitySetting is HumanSetting)
{
var humanSetting = activitySetting as HumanSetting;
var human = WorkflowBuilder.CreateHuman(activitySetting
, activitySetting.ActivityName
, new GetUsers(humanSetting.ActionerRule.Scripts)
, activity.CustomActivityResult);
customs.Add(human);
}
else if (activitySetting is ServerSetting)
{
var customSetting = activitySetting as CustomSetting;
var serverSetting = activitySetting as ServerSetting;
var resultTo = activity.Variables.ToList().FirstOrDefault(o => o.Name == serverSetting.ResultTo);
var server = WorkflowBuilder.CreateServer(activitySetting
, activitySetting.ActivityName
, serverSetting.Script
, customSetting.FinishRule.Scripts
, resultTo != null ? (Variable <string>)resultTo : null
, activity.CustomActivityResult);
customs.Add(server);
}
}
}
var p_expression = wf_Parallel.DisplayName;
if (string.IsNullOrEmpty(p_expression))
{
throw new Exception(@"流程中包括名称为空的节点，请检查！");
}
var p_activityName = ParseActivityName(p_expression);
if (temp.Contains(p_activityName))
{
throw new InvalidOperationException("流程中包括重复名称的节点，请检查！");
}
temp.Add(p_activityName);
var p_activitySetting = activitySettings.FirstOrDefault(o => o.ActivityName == p_activityName);
if (p_activitySetting == null)
{
throw new Exception(string.Format(@"解析出错，找不到名称为“{0}”的ActivitySetting", p_activityName));
}
var flowStep = WorkflowBuilder.CreateParallel(p_activitySetting
, p_activitySetting.ActivityName
, (p_activitySetting as ParallelSetting).CompletionCondition
, null
, customs.ToArray());
flowNodes.Add(wf_FlowStep.GetHashCode(), new FlowNodeInfo()
{
WF_FlowNode = wf_FlowStep, FlowStep = flowStep
});
}
}
}
var flowNode = flowchart.StartNode;
if (flowNode == null)
{
throw new InvalidOperationException("不包括StartNode开始节点");
}
//创建流程节点
BuildFlowNode(flowNode, flowNodes, flowLines, 0);
//将节点树连接到NTFE
activity.Body.StartNode = flowNodes[flowNode.GetHashCode()].FlowStep;
//初始化Flowchart节点的元素
if (isCacheMetaData)
{
CacheMetadata(activity.Body);
}
return(activity);
}
