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RetrieveWorkItem.aspx.cs
资源名称：H3_OA.rar　[点击查看]
上传用户：li2971742
上传日期：2021-11-18
资源大小：39096k
文件大小：5k
源码类别：

OA系统

开发平台：

C#

RetrieveWorkItem.aspx.cs：源码内容
  1. using System;
  2. using System.Data;
  3. using System.Configuration;
  4. using System.Collections;
  5. using System.Web;
  6. using System.Web.Security;
  7. using System.Web.UI;
  8. using System.Web.UI.WebControls;
  9. using System.Web.UI.WebControls.WebParts;
  10. using System.Web.UI.HtmlControls;
  12. namespace OThinker.H3.Portal
  13. {
  14.     public partial class RetrieveWorkItem : PortalPage
  15.     {
  16.         public string _WorkItemID = OThinker.H3.WorkItem.WorkItem.NullWorkItemID;
  17.         public string WorkItemID
  18.         {
  19.             get
  20.             {
  21.                 if (this._WorkItemID == OThinker.H3.WorkItem.WorkItem.NullWorkItemID)
  22.                 {
  23.                     string itemId = Request.QueryString[Param_WorkItemID];
  24.                     if (itemId != null && itemId != "")
  25.                     {
  26.                         this._WorkItemID = itemId;
  27.                     }
  28.                 }
  29.                 return this._WorkItemID;
  30.             }
  31.         }
  33.         private OThinker.H3.WorkItem.WorkItem _WorkItem = null;
  34.         public OThinker.H3.WorkItem.WorkItem WorkItem
  35.         {
  36.             get
  37.             {
  38.                 if(this._WorkItem == null)
  39.                 {
  40.                     this._WorkItem = OThinker.H3.Server.Engine.WorkItemManager.GetWorkItem(this.WorkItemID);
  41.                 }
  42.                 return this._WorkItem;
  43.             }
  44.         }
  46.         protected void Page_Load(object sender, EventArgs e)
  47.         {
  48.             // 检查是否能够取回
  50.             if (this.WorkItem == null)
  51.             {
  52.                 this.NotifyMessage("该工作项不存在");
  53.             }
  55.             // 获得当前的Token是否存在多个分支
  56.             OThinker.H3.Instance.IToken currentToken = OThinker.H3.Server.Engine.TokenPool.GetToken(this.WorkItem.InstanceId, this.WorkItem.TokenId);
  57.             if (currentToken == null)
  58.             {
  59.                 this.NotifyMessage("不具有取回的条件");
  60.             }
  62.             // 获得后继的Token
  63.             long[] postTokenIds = OThinker.H3.Server.Engine.TokenPool.QueryPostToken(this.WorkItem.InstanceId, this.WorkItem.TokenId);
  65.             // 发送回退消息
  66.             if (postTokenIds == null || postTokenIds.Length == 0)
  67.             {
  68.                 // 已经取回过了
  69.                 this.NotifyMessage("不存在后继活动，或者已经取回过了");
  70.             }
  71.             else if (postTokenIds.Length > 1)
  72.             {
  73.                 this.NotifyMessage("不具有取回的条件，后继存在多个活动");
  74.             }            
  76.             long postTokenId = postTokenIds[0];
  77.             OThinker.H3.Instance.IToken postToken = OThinker.H3.Server.Engine.TokenPool.GetToken(this.WorkItem.InstanceId, postTokenId);
  78.             if (!postToken.Retrievable)
  79.             {
  80.                 // 无法取回
  81.                 this.NotifyMessage("不具有取回的条件，后继活动已经不允许取回，或者后继已经做了不可取回的操作了");
  82.             }
  84.             // 具备取回的条件
  86.             // 记录流程ID，TokenID和参与者信息
  87.             string instanceId = this.WorkItem.InstanceId;
  88.             long tokenId = this.WorkItem.TokenId;
  89.             string participant = this.WorkItem.Participant;
  91.             OThinker.H3.Messages.CancelActivityMessage rollback
  92.             = new OThinker.H3.Messages.CancelActivityMessage(
  93.                 OThinker.H3.Messages.MessageEmergencyType.Normal,
  94.                 this.WorkItem.InstanceId,
  95.                 postToken.Activity,
  96.                 true,
  97.                 null);
  98.             OThinker.H3.Server.Engine.InstanceManager.SendMessage(rollback);
  100.             // 读取新的工作项
  101.             // 获得该实例的任务
  102.             string[] items = null;
  103.             for (int triedTimes = 0; triedTimes < 10; triedTimes++)
  104.             {
  105.                 System.Threading.Thread.Sleep(1500);
  107.                 items = OThinker.H3.Server.Engine.WorkItemManager.Query(
  108.                     null,
  109.                     new string[] { instanceId },
  110.                     new string[] { participant },
  111.                     System.DateTime.MinValue,
  112.                     System.DateTime.MaxValue,
  113.                     OThinker.H3.WorkItem.WorkItemState.Unfinished);
  114.                 if (items != null && items.Length != 0)
  115.                 {
  116.                     break;
  117.                 }
  118.             }
  120.             if (items == null || items.Length == 0)
  121.             {
  122.                 this.NotifyMessage(
  123.                     "超时，可能是如下原因造成的：<BR>" +
  124.                     "1、创建或启动流程的时候出现了异常，请点击Web控制台上的管理->异常，查看是否出现了异常<BR>" +
  125.                     "2、系统正忙，请稍后在待办任务中查看是否存在该工作项");
  126.             }
  127.             else
  128.             {
  129.                 // 获得该任务
  130.                 OThinker.H3.WorkItem.WorkItem item = OThinker.H3.Server.Engine.WorkItemManager.GetWorkItem(items[0]);
  131.                 // 任务已经收到
  132.                 this.Response.Redirect(PortalPage.GetWorkSheetUrl(item));
  133.             }
  134.         }
  135.     }
  136. }