// <summary>
/// 初始化流程实例。
/// </summary>
/// <param name="processSign">流程标识。</param>
/// <param name="processInstanceName">流程实例名称。</param>
/// <param name="employeeID">进行操作的用户ID。</param>
/// <param name="employeeName">进行操作的用户名称。</param>
/// <param name="processInstanceID">初始化流程实例的唯一标识。</param>
/// <param name="msgError">调用失败时的错误消息。</param>
/// <returns>实例化成功则返回true,否则返回false。</returns>
public bool InitFlow(string processSign, string processInstanceName, GUIDEx employeeID, string employeeName, out GUIDEx processInstanceID, out string msgError)
{
lock (this)
{
bool result = false;
msgError = processInstanceID = null;
try
{
#region 验证参数。
if (string.IsNullOrEmpty(processSign))
{
msgError = "流程标识为空。";
return result;
}
if (string.IsNullOrEmpty(processInstanceName))
{
msgError = "流程实例名称为空。";
return result;
}
#endregion
#region 获取流程定义。
GUIDEx processID = this.flowProcessEntity.FindProcessID(processSign);
if (!processID.IsValid)
{
msgError = "流程标识不正确。";
return result;
}
Process p = ModuleUtils.CreateProcess(processID);
if (p == null)
{
msgError = "流程定义序列化失败。";
return result;
}
string strVerify = null;
string processSerialization = Utils.SerializerDatabaseFormart<Process>(p, out strVerify);
#endregion
FlowProcessInstance flowProcessInstance = new FlowProcessInstance();
flowProcessInstance.ProcessID = processID;
flowProcessInstance.ProcessName = p.ProcessName;
flowProcessInstance.ProcessInstanceID = processInstanceID = GUIDEx.New;
flowProcessInstance.ProcessInstanceName = processInstanceName;
flowProcessInstance.ProcessSerialization = processSerialization;
flowProcessInstance.Verify = strVerify;
flowProcessInstance.CreateDate = DateTime.Now;
flowProcessInstance.EndDate = null;
flowProcessInstance.FromEmployeeID = employeeID;
flowProcessInstance.FromEmployeeName = employeeName;
flowProcessInstance.InstanceProcessStatus = (int)EnumInstanceProcessStatus.Run;
result = this.flowProcessInstanceEntity.UpdateRecord(flowProcessInstance);
}
catch (Exception e)
{
msgError = e.Message;
if (processInstanceID.IsValid)
{
FlowInstanceRunError err = new FlowInstanceRunError();
err.ErrorID = GUIDEx.New;
err.ProcessInstanceID = processInstanceID;
err.StepInstanceID = GUIDEx.Null;
err.ErrorMessage = msgError;
this.flowInstanceRunErrorEntity.UpdateRecord(err);
}
}
return result;
}
}
/// <summary>
/// 提交任务。
/// </summary>
/// <param name="processInstanceID">流程实例ID。</param>
/// <param name="stepSign">当前步骤标识。</param>
/// <param name="employeeID">进行操作的用户ID。</param>
/// <param name="employeeName">进行操作的用户名称。</param>
/// <param name="parameters">参数集合，为流程流转提供参数。</param>
/// <param name="approvalViews">审批意见。</param>
/// <param name="toDoEmployees">推进该流程一下步骤的相关人员（用户ID,用户名称），为空表示流程定义中的所有相关人员。</param>
/// <param name="toViewEmployees">流程一下步骤待阅的相关人员（用户ID,用户名称），为空表示无待阅。</param>
/// <param name="taskID">流程任务ID。</param>
/// <param name="msgError">调用失败时的错误消息。</param>
/// <returns>提交任务成功则返回true,否则返回false。</returns>
public bool CommitFlow(GUIDEx processInstanceID, string stepSign, GUIDEx employeeID, string employeeName, ParamInstanceCollection parameters, string approvalViews,string taskID, string[][] toDoEmployees, string[][] toViewEmployees, out string msgError)
{
lock (this)
{
msgError = null;
bool result = false;
GUIDEx stepInstanceID = GUIDEx.Null;
try
{
#region 验证参数。
if (string.IsNullOrEmpty(processInstanceID))
{
msgError = "流程实例ID为空。";
return result;
}
if (string.IsNullOrEmpty(stepSign))
{
msgError = "当前步骤标识为空。";
return result;
}
#endregion
#region 获取流程实例。
FlowProcessInstance flowProcessInstance = new FlowProcessInstance();
flowProcessInstance.ProcessInstanceID = processInstanceID;
if (false == (result = this.flowProcessInstanceEntity.LoadRecord(ref flowProcessInstance)))
{
msgError = "流程实例ID不正确。";
return result;
}
EnumInstanceProcessStatus ips = (EnumInstanceProcessStatus)flowProcessInstance.InstanceProcessStatus;
if (ips == EnumInstanceProcessStatus.Complete)
{
msgError = string.Format("该流程实例[{0}]已经完成。", flowProcessInstance.ProcessInstanceName);
return result;
}
if (ips == EnumInstanceProcessStatus.Stop)
{
msgError = string.Format("该流程实例[{0}]已经被暂停。", flowProcessInstance.ProcessInstanceName);
return result;
}
if (ips != EnumInstanceProcessStatus.Run)
{
msgError = string.Format("该流程实例[{0}]未在运行状态。", flowProcessInstance.ProcessInstanceName);
return result;
}
Process p = Utils.DeSerializerDatabaseFormart<Process>(flowProcessInstance.ProcessSerialization);
if (p == null)
{
msgError = string.Format("该流程实例[{0}]反序列化失败,无法加载流程定义。", flowProcessInstance.ProcessInstanceName);
return result;
}
#endregion
#region 流程步骤处理。
Step step = p.Steps.FindStep(stepSign);
if (step == null)
{
msgError = string.Format("该流程实例[{0}]的步骤[{1}]不存在。", flowProcessInstance.ProcessInstanceName, stepSign);
return result;
}
FlowStepInstance flowStepInstance = new FlowStepInstance();
flowStepInstance.StepInstanceID = stepInstanceID = GUIDEx.New;
flowStepInstance.StepID = step.StepID;
flowStepInstance.StepName = step.StepName;
flowStepInstance.ProcessInstanceID = flowProcessInstance.ProcessInstanceID;
flowStepInstance.CreateDate = DateTime.Now;
flowStepInstance.EndDate = null;
flowStepInstance.FromEmployeeID = employeeID;
flowStepInstance.FromEmployeeName = employeeName;
flowStepInstance.InstanceStepStatus = (int)EnumInstanceStepStatus.Suspended;
IDBAccess dbAccess = this.flowStepInstanceEntity.DatabaseAccess;
try
{
//启动事务。
dbAccess.BeginTransaction();
if (result = this.flowStepInstanceEntity.UpdateRecord(flowStepInstance))
{
#region 参数处理。
bool pResult = true;
if (parameters != null && parameters.Count > 0 && step.Parameters != null && step.Parameters.Count > 0)
{
FlowParameterInstance flowParameterInstance = new FlowParameterInstance();
FlowParameterInstanceEntity flowParameterInstanceEntity = new FlowParameterInstanceEntity();
flowParameterInstanceEntity.DatabaseAccess = dbAccess;
foreach (ParamInstance pi in parameters)
{
Parameter parameter = step.Parameters.FindParameter(pi.ParamName);
if (parameter == null)
{
msgError = string.Format("该流程实例[{0}]的步骤[{1}]中参数[{2}]不存在。", flowProcessInstance.ProcessInstanceName, stepSign, pi.ParamName);
pResult = false;
break;
}
flowParameterInstance.StepInstanceID = flowStepInstance.StepInstanceID;
flowParameterInstance.ParameterID = parameter.ParameterID;
flowParameterInstance.ParameterName = parameter.ParameterName;
flowParameterInstance.ParameterValue = pi.ParamValue;
result = flowParameterInstanceEntity.UpdateRecord(flowParameterInstance);
}
if (!pResult)
flowParameterInstanceEntity.DeleteRecord(flowStepInstance.StepInstanceID);
}
if (!pResult && !string.IsNullOrEmpty(msgError))
{
this.flowStepInstanceEntity.DeleteRecord(flowStepInstance);
stepInstanceID = GUIDEx.Null;
throw new Exception(msgError);
}
#endregion
}
#region 记录审批意见。
if (result && !string.IsNullOrEmpty(approvalViews))
{
FlowStepInstanceData flowStepInstanceData = new FlowStepInstanceData();
flowStepInstanceData.TaskDataID = string.IsNullOrEmpty(taskID) ? GUIDEx.New : new GUIDEx(taskID);
flowStepInstanceData.StepInstanceID = flowStepInstance.StepInstanceID;
flowStepInstanceData.CreateDate = DateTime.Now;
flowStepInstanceData.DataCategory = (int)EnumDataCategory.FlowData;
flowStepInstanceData.DataText = approvalViews;
this.flowStepInstanceDataEntity.DatabaseAccess = dbAccess;
result = this.flowStepInstanceDataEntity.UpdateRecord(flowStepInstanceData);
}
#endregion
#region toDoEmployees
if (result && toDoEmployees != null && toDoEmployees.Length > 0)
{
StringBuilder builder = new StringBuilder("toDoEmployees:{");
bool bFlag = false;
foreach (string[] ep in toDoEmployees)
{
if (ep != null && ep.Length == 2)
{
bFlag = true;
builder.Append(string.Join(":", ep));
builder.Append(";");
}
}
if (bFlag)
builder.Remove(builder.Length - 1, 1);
builder.Append("}");
FlowStepInstanceData flowStepInstanceData = new FlowStepInstanceData();
flowStepInstanceData.TaskDataID = GUIDEx.New;
flowStepInstanceData.StepInstanceID = flowStepInstance.StepInstanceID;
flowStepInstanceData.CreateDate = DateTime.Now;
flowStepInstanceData.DataCategory = (int)EnumDataCategory.AddData;
flowStepInstanceData.DataText = builder.ToString();
flowStepInstanceDataEntity.DatabaseAccess = dbAccess;
result = flowStepInstanceDataEntity.UpdateRecord(flowStepInstanceData);
}
#endregion
#region toViewEmployees
if (result && toViewEmployees != null && toViewEmployees.Length > 0)
{
StringBuilder builder = new StringBuilder("toViewEmployees:{");
bool bFlag = false;
foreach (string[] ve in toViewEmployees)
{
if (ve != null && ve.Length == 2)
{
bFlag = true;
builder.Append(string.Join(":", ve));
builder.Append(";");
}
}
if (bFlag)
builder.Remove(builder.Length - 1, 1);
builder.Append("}");
FlowStepInstanceData flowStepInstanceData = new FlowStepInstanceData();
flowStepInstanceData.TaskDataID = GUIDEx.New;
flowStepInstanceData.StepInstanceID = flowStepInstance.StepInstanceID;
flowStepInstanceData.CreateDate = DateTime.Now;
flowStepInstanceData.DataCategory = (int)EnumDataCategory.AddData;
flowStepInstanceData.DataText = builder.ToString();
flowStepInstanceDataEntity.DatabaseAccess = dbAccess;
result = flowStepInstanceDataEntity.UpdateRecord(flowStepInstanceData);
}
#endregion
#region 流程任务处理。
if (!string.IsNullOrEmpty(taskID))
{
FlowInstanceTaskEntity flowInstanceTaskEntity = new FlowInstanceTaskEntity();
FlowInstanceTask flowInstanceTask = new FlowInstanceTask();
flowInstanceTask.TaskID = taskID;
if (flowInstanceTaskEntity.LoadRecord(ref flowInstanceTask))
{
if (flowInstanceTask.EndMode == (int)EnumTaskEndMode.None)
{
flowInstanceTask.DoEmployeeID = employeeID;
flowInstanceTask.DoEmployeeName = employeeName;
flowInstanceTask.EndDate = DateTime.Now;
flowInstanceTask.EndMode = (int)EnumTaskEndMode.Normal;
flowInstanceTask.BeginMode = (int)((employeeID == flowInstanceTask.EmployeeID) ? EnumTaskBeginMode.Normal : EnumTaskBeginMode.Authorize);
result = flowInstanceTaskEntity.UpdateRecord(flowInstanceTask);
}
}
}
#endregion
flowStepInstance.InstanceStepStatus = (int)EnumInstanceStepStatus.Committed;
result = this.flowStepInstanceEntity.UpdateRecord(flowStepInstance);
//提交事务。
result = dbAccess.CommitTransaction();
}
catch (Exception ex)
{
result = false;
dbAccess.RollbackTransaction();
throw ex;
}
#endregion
}
catch (Exception e)
{
msgError = e.Message;
if (processInstanceID.IsValid)
{
FlowInstanceRunError err = new FlowInstanceRunError();
err.ErrorID = GUIDEx.New;
err.ProcessInstanceID = processInstanceID;
err.StepInstanceID = stepInstanceID;
err.ErrorMessage = msgError;
err.CreateDate = DateTime.Now;
this.flowInstanceRunErrorEntity.UpdateRecord(err);
}
}
return result;
}
}
