封装K2.net 2003中的K2ROM
在用K2.net 2003开发Workflow时,我们常常要封装一个K2ROM以对K2流程进行处理.下面就是一个K2流程要用到的最基本的一些操作.
using
System;
using
System.Collections;
using
SourceCode.K2ROM;
using
System.Data;
using
System.Data.SqlClient;
using
System.Configuration;
namespace
K2ROM
{
/**//// <summary>
/// Summary description for K2Helper.
/// </summary> public class K2Helper { public K2Helper() { // // TODO: Add constructor logic here // } public static string GetConnectionString(string domain, string userName, string password) { return string.Format(@"[;];Authenication=Windows;Domain={0};User={1};Password={2}", domain, userName, "Dell1234"); } /**//// <summary> /// Authenication /// </summary> public static string ConnectionString = "[;];Authenication=Windows;Domain=mstech;User=administrator;Password=Satyam123241"; /**//// <summary> /// Getting the K2 server name. /// </summary> public static string ServerName = ConfigurationManager.AppSettings["K2Server"].ToString(); /**//// <summary> /// Start a process instance in k2 server. /// </summary> /// <param name="processName">Process name</param> /// <param name="param">Process instance data,stored as a hashtable</param> /// <returns>Return process instance</returns> public static ProcessInstance StartProcessInstance(string processName, Hashtable param) { Connection con = new Connection(); con.Open(ServerName); ProcessInstance instance = con.CreateProcessInstance(processName); IDictionaryEnumerator list = param.GetEnumerator(); while (list.MoveNext()) instance.DataFields[list.Key.ToString()].Value = list.Value; con.StartProcessInstance(instance); con.Close(); return instance; } /**//// <summary> /// Submit the result to K2 server. /// </summary> /// <param name="item">WorklistItem</param> /// <param name="isSubmit">Stop or Finish</param> /// <returns></returns> public static bool UpdateWorkItem(WorklistItem item, bool isSubmit) { if (item == null) throw new NullReferenceException("WorklitItem item is null!"); if (isSubmit) item.Finish(); else item.Update(); return true; } /**//// <summary> /// Redirect the work item to specified person. /// </summary> /// <param name="item"></param> /// <param name="userName"></param> /// <returns></returns> public static bool RedirectWorkItem(WorklistItem item, string userName) { if (item != null) { item.Redirect(userName); return true; } return false; } /**//// <summary> /// Get WorklistItem by serialnumber. /// </summary> /// <param name="serialNumber"></param> /// <returns></returns> public static WorklistItem GetWorkistItem(string serialNumber) { Connection con = new Connection(); con.Open(ServerName); WorklistItem item = con.OpenWorklistItem(serialNumber, "ASP"); return item; } /**//// <summary> /// Open a server item /// </summary> /// <param name="serialNumber"></param> /// <returns></returns> public static ServerItem GetServerItem(string serialNumber) { Connection con = new Connection(); con.Open(ServerName); return con.OpenServerItem(serialNumber); } /**//// <summary> /// convert worklist to dataset /// </summary> /// <param name="list"></param> /// <returns></returns> public static DataTable GetWorklistDataTable(Worklist list) { if (list == null || list.Count == 0) return null; DataTable dt = CreatWorkListTable(); foreach (WorklistItem item in list) { DataRow dr = dt.NewRow(); dr["ProcInstID"] = item.ProcessInstance.ID; dr["StartDate"] = item.ProcessInstance.StartDate; dr["SerialNumber"] = item.SerialNumber; //The id implement alternant opration between K2 DB and Location DB. dr["WorkItemID"] = item.ProcessInstance.DataFields["WorkItemID"].Value.ToString(); dt.Rows.Add(dr); } return dt; } /**//// <summary> /// Creat a datatable to store WorkList. /// </summary> /// <returns></returns> public static DataTable CreatWorkListTable() { DataTable dt = new DataTable(); dt.Columns.Add("ProcInstID"); dt.Columns.Add("StartDate"); dt.Columns.Add("SerialNumber"); dt.Columns.Add("WorkItemID"); return dt; } /**//// <summary> /// Get Worklist by criteria. /// </summary> /// <param name="criteria"></param> /// <returns></returns> public static Worklist GetWorklist(WorklistCriteria criteria) { Connection con = new Connection(); con.Open(ServerName); return con.OpenWorklist(criteria); } /**//// <summary> /// Get Worklist by process name. /// </summary> /// <param name="processName"></param> /// <returns></returns> public static Worklist GetWorklist(string processName) { WorklistCriteria criteria = new WorklistCriteria(); criteria.AddFilterField(WCField.ProcessName, WCCompare.Equal, processName); return GetWorklist(criteria); } /**//// <summary> /// Get Worklist by process name and activity name. /// </summary> /// <param name="processName"></param> /// <param name="activityName"></param> /// <returns></returns> public static Worklist GetWorklist(string processName, string activityName) { WorklistCriteria criteria = new WorklistCriteria(); criteria.AddFilterField(WCField.ProcessName, WCCompare.Equal, processName); criteria.AddFilterField(WCField.ActivityName, WCCompare.Equal, activityName); return GetWorklist(criteria); } /**//// <summary> /// Stop a process instance by process ID. /// </summary> /// <param name="ProcessID"></param> /// <returns></returns> public static bool StopProcessInstance(int ProcessID) { SourceCode.K2Mng.K2Manager mgr = K2Helper.GetK2Manager(); bool flag = mgr.StopProcessInstances(ProcessID); mgr.Logout(); return flag; } /**//// <summary> /// Access K2 service as admin. /// </summary> /// <returns></returns> public static SourceCode.K2Mng.K2Manager GetK2Manager() { SourceCode.K2Mng.K2Manager mgr = new SourceCode.K2Mng.K2Manager(); try { mgr.Login(ConfigurationManager.AppSettings["K2Server"], int.Parse(ConfigurationManager.AppSettings["K2AdminPort"]), ConfigurationManager.AppSettings["K2AdminConnectionString"]); } catch (Exception ex) { throw new Exception("Access to K2 Server denied!", ex); } return mgr; } }
}