/// <summary>
/// 统一创建流程引擎
/// </summary>
/// <returns></returns>
public FlowEngine BuildEngine()
{
FlowEngine flowEngine = new FlowEngine();
flowEngine.FinishedHandler -= new FlowEngine.FinishedEventHandler(FlowManager.FlowFinished);
flowEngine.FinishedHandler += new FlowEngine.FinishedEventHandler(FlowManager.FlowFinished);
return flowEngine;
}
/// <summary>
/// 拼接当前流程至已存在流程后
/// </summary>
/// <param name="newFlowEngine">新流程</param>
/// <param name="oldFlowEngine">old流程</param>
public static void Concat(FlowEngine newFlowEngine, FlowEngine oldFlowEngine)
{
foreach (var step in newFlowEngine.FlowSteps)
{
oldFlowEngine.Add(step);
}
}
/// <summary>
/// 普通节点设置IActor
/// 条件节点设置ICondition
/// </summary>
/// <param name="flowEngine">流程对象</param>
public void Assign(FlowEngine flowEngine, FlowAttachment flowAttachment)
{
foreach (var step in flowEngine.FlowSteps)
{
foreach (var node in step.Nodes)
{
//node.Participant.Actor = new DepartmentActor();
if (node is NodeCondition)
{
((NodeCondition)node).Condition = new RevenuCondition();
}
}
}
flowEngine.Reset(flowAttachment);
}
/// <summary>
/// 拼接当前流程至已存在流程后
/// </summary>
/// <param name="id">编号</param>
/// <param name="category">分类</param>
/// <param name="flowEngine">新流程</param>
public static void Concat(int id, FlowEngine newFlowEngine)
{
FlowManager flowMgr = FlowManager.Instance();
if (flowMgr.FlowExists(id))
{
int index = 0;
FlowEngine oldFlowEngine = flowMgr.Load(id);
Step returnedStep = FindLastReturned(oldFlowEngine);
if (returnedStep == null) return;
SetDisableAtReturned(oldFlowEngine, returnedStep);
foreach (var step in oldFlowEngine.FlowSteps)
{
newFlowEngine.Insert(step, index++);
}
}
}
/// <summary>
/// 序列化流程至文件 BinaryFormatter
/// </summary>
/// <param name="path">文件全路径名称</param>
/// <param name="workFlow">流程对象</param>
public static void Save(string path, FlowEngine workFlow)
{
try
{
if (!Directory.Exists(Path.GetDirectoryName(path)))
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
}
Stream sw = File.Create(path);
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(sw, workFlow);
sw.Close();
}
catch (Exception ex)
{
throw new Exception("Exception save workflow file", ex);
}
}
/// <summary>
/// 保存流程数据
/// </summary>
/// <param name="flowEngine">流程</param>
/// <param name="category">分类</param>
/// <param name="owner">具体业务数据对应的PK</param>
public void FlowSave(Eastday.WorkFlowEngine.FlowEngine flowEngine)
{
using (WorkFlowBLL workFlowBLL = new WorkFlowBLL())
{
workFlowBLL.DbContext = workFlowBLL.CreateDbContext(true);
WorkFlowEntity workFlowEntity = workFlowBLL.Usp_Flow_ByOwner(flowEngine.Attachment.Owner);
if (workFlowEntity == null)
{
workFlowEntity = new WorkFlowEntity();
}
workFlowEntity.I_Owner = flowEngine.Attachment.Owner;
workFlowEntity.I_State = (int)flowEngine.FlowState;
workFlowEntity.I_Flag = 1;
//ParticipantEntity
var aCurrent = flowEngine.GetCurrent();
var steps = from step in flowEngine.FlowSteps where !(step is StepEnd) select step;
List <ParticipantEntity> participants = new List <ParticipantEntity>();
foreach (var step in steps)
{
foreach (var node in step.Nodes)
{
ParticipantEntity participantEntity = new ParticipantEntity();
participantEntity.I_Reference = node.Participant.Reference;
participantEntity.I_WorkFlow = workFlowEntity.Id;
participantEntity.C_Step = step.Identification;
participantEntity.C_Node = node.Identification;
participantEntity.I_Auditer = node.Conclusion.Auditer;
participantEntity.D_Audit = node.Conclusion.AuditDate;
participantEntity.I_Bind = node.Participant.Category;
participantEntity.I_Current = step == aCurrent && node.AuditType == AuditType.UnAudit ? 1 : (int)node.Conclusion.AuditType;
participants.Add(participantEntity);
}
}
if (workFlowBLL.Usp_Flow_Insert(workFlowEntity, participants) > 0)
{
workFlowBLL.DbContext.CommitTransaction();
this.Save(flowEngine);
}
}
}
/// <summary>
/// 反序列化加载流程 BinaryFormatter
/// </summary>
/// <param name="path">文件全路径名称</param>
/// <returns>流程对象</returns>
public static FlowEngine Load(string path)
{
if (!System.IO.File.Exists(path))
{
return(null);
}
try
{
BinaryFormatter bf = new BinaryFormatter();
FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
FlowEngine workFlow = (FlowEngine)bf.Deserialize(fs);
fs.Close();
return(workFlow);
}
catch (Exception ex)
{
throw new Exception("Exception load workflow file", ex);
}
}
private static Step FindLastReturned(FlowEngine flowEngine)
{
IEnumerable<Step> reverseSteps = flowEngine.FlowSteps.Reverse();
foreach (var step in reverseSteps)
{
foreach (var node in step.Nodes)
{
if (node.AuditType == AuditType.Returned)
return step;
}
}
return null;
}
private static Step FindByReference(FlowEngine flowEngine, long reference)
{
foreach (var step in flowEngine.FlowSteps)
{
foreach (var node in step.Nodes)
{
if (node.AuditType == AuditType.UnAudit && node.Participant.Reference == reference)
{
return step;
}
}
}
return null;
}
/// <summary>
/// 保存模板
/// </summary>
/// <param name="template">模板名称</param>
/// <param name="flowEngine">流程</param>
/// <remarks>命名: TEMP_0001 TEMP_002</remarks>
public void TemplateSave(string template, FlowEngine flowEngine)
{
string file = this.GetTemplateFile(template);
string directory = System.IO.Path.GetDirectoryName(file);
if (!System.IO.Directory.Exists(directory))
{
System.IO.Directory.CreateDirectory(directory);
}
FlowEngine.Save(file, flowEngine);
}
private static void SetDisableAtReturned(FlowEngine flowEngine, Step returnedStep)
{
LinkedListNode<Step> stepNode = flowEngine.FlowSteps.Find(returnedStep);
if (stepNode == null) return;
stepNode = stepNode.Next;
while (stepNode != null)
{
Step step = stepNode.Value;
foreach (var node in step.Nodes)
{
if (node.AuditType != AuditType.Disable)
{
node.AuditType = AuditType.Disable;
}
}
stepNode = stepNode.Next;
}
}
/// <summary>
/// 流程终止
/// </summary>
/// <param name="flowEngine"></param>
public bool Abort(FlowEngine flowEngine, string auditDesc, int userId)
{
if (this.Audit(flowEngine, AuditType.Passed, auditDesc, userId))
{
flowEngine.Abort();
return true;
}
return false;
}
/// <summary>
/// 流程退回
/// </summary>
/// <param name="flowEngine"></param>
public bool Returned(FlowEngine flowEngine, AuditType auditType, string auditDesc, int userId)
{
if (this.Audit(flowEngine, auditType, auditDesc, userId))
{
flowEngine.Returned();
return true;
}
return false;
}
/// <summary>
/// 判断是否属于当前人审核
/// </summary>
/// <param name="flowEngine"></param>
/// <param name="userId"></param>
/// <returns></returns>
public bool CanAudit(FlowEngine flowEngine, int userId)
{
Step current = flowEngine.GetCurrent();
if (current == null || current.NodeValidCount == 0) return false;
IList<Node> nodes = current.Nodes;
using (AppBLL bll = new AppBLL())
{
IList<FunctionEntity> userFuncs = bll.FillList<FunctionEntity>("Usp_Funcs_ByUser", new { UserId = userId });
foreach (var userFunc in userFuncs)
{
var auditNodes = from node in nodes
where node.Participant.Reference == userFunc.Id || node.Participant.Department == userId
select node;
if (auditNodes.Any()) return true;
}
}
return false;
}
/// <summary>
/// 流程审核
/// </summary>
/// <param name="flowEngine">流程</param>
/// <param name="auditType">审核类型</param>
/// <param name="auditDesc">审核描述</param>
/// <param name="userId">Sys_User.Id</param>
/// <returns>true 审核成功 false 不能审核</returns>
public bool Audit(FlowEngine flowEngine, AuditType auditType, string auditDesc, int userId)
{
using (AppBLL bll = new AppBLL())
{
Participant participant = null;
Conclusion conclusion = null;
IList<FunctionEntity> userFuncs = bll.FillList<FunctionEntity>("Usp_Funcs_ByUser", new { UserId = userId });
foreach (var userFunc in userFuncs)
{
participant = new Participant() { Category = 1, Department = -1, Reference = (long)userFunc.Id };
conclusion = new Conclusion(auditType, (long)userId, DateTime.Now) { Description = auditDesc };
if (flowEngine.Audit(conclusion, participant))
{
return true;
}
}
participant = new Participant() { Category = 0, Department = userId, Reference = -1 };
conclusion = new Conclusion(auditType, userId, DateTime.Now) { Description = auditDesc };
if (flowEngine.Audit(conclusion, participant))
{
return true;
}
}
return false;
}
/// <summary>
/// 增加会签
/// </summary>
/// <param name="flowEngine">流程</param>
/// <param name="funcEntry"></param>
/// <param name="users"></param>
private static void AddCountersign(FlowEngine flowEngine, FunctionEntity funcEntry, IList<UserEntity> users)
{
Step firstStep = flowEngine.FlowSteps.First();
Step newStep = null;
foreach (var user in users)
{
newStep = new StepGeneral();
Participant participant = new Participant() { Department = -1, Category = 1, Reference = (long)funcEntry.Id };
newStep.Add(new Node(funcEntry.C_Name, participant) { Description = funcEntry.C_Name });
flowEngine.AddAfter(firstStep, newStep);
firstStep = newStep;
}
}
/// <summary>
/// 序列化流程至文件 BinaryFormatter
/// </summary>
/// <param name="path">文件全路径名称</param>
/// <param name="workFlow">流程对象</param>
public static void Save(string path, FlowEngine workFlow)
{
try
{
if (!Directory.Exists(Path.GetDirectoryName(path)))
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
}
Stream sw = File.Create(path);
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(sw, workFlow);
sw.Close();
}
catch (Exception ex)
{
throw new Exception("Exception save workflow file", ex);
}
}
private void Save(FlowEngine flowEngine)
{
if (flowEngine.Attachment.Owner == -1)
{
throw new ArgumentException("Owner is null");
}
if (flowEngine.FlowState != FlowState.Finished)
{
FlowKey flowKey = new FlowKey() { Owner = flowEngine.Attachment.Owner };
if (!this.dicFlow.ContainsKey(flowKey))
{
this.dicFlow.Add(flowKey, flowEngine);
}
else if (flowEngine.GetCurrent() == null)
{
this.dicFlow.Remove(flowKey);
}
else if (this.dicFlow.ContainsKey(flowKey))
{
this.dicFlow[flowKey] = flowEngine;
}
}
string fileName = FlowManager.GetFlowFile(flowEngine.Attachment.Owner);
FlowEngine.Save(fileName, flowEngine);
}