private WfProcessCollection LoadProcesses(Action <WhereSqlClauseBuilder> action)
{
action.NullCheck("action");
var whereBuilder = new WhereSqlClauseBuilder();
action(whereBuilder);
var mapping = ORMapping.GetMappingInfo <WfProcessInstanceData>();
string[] fields = ORMapping.GetSelectFieldsName(mapping, "Data");
var sql = string.Format("SELECT {0},{1} FROM {2} WHERE {3}",
string.Join(",", fields),
BINARYDATA,
mapping.TableName,
whereBuilder.ToSqlString(TSqlBuilder.Instance));
var table = DbHelper.RunSqlReturnDS(sql, GetConnectionName()).Tables[0];
WfProcessCollection result = null;
PerformanceMonitorHelper.GetDefaultMonitor().WriteExecutionDuration("DataTableToProcessCollection",
() => result = DataTableToProcessCollection(table)
);
return(result);
}
/// <summary>
/// 得到某个活动的子流程。如果缓存中存在，则使用缓存中的流程
/// </summary>
/// <param name="activityID"></param>
/// <param name="templateKey"></param>
/// <returns></returns>
public static WfProcessCollection GetProcessByOwnerActivityID(string activityID, string templateKey)
{
activityID.CheckStringIsNullOrEmpty("activityID");
templateKey.CheckStringIsNullOrEmpty("templateKey");
WfProcessCollection queryResult = null;
PerformanceMonitorHelper.GetDefaultMonitor().WriteExecutionDuration(string.Format("LoadProcessByOwnerActivityID({0}-{1})", activityID, templateKey), () =>
queryResult = WorkflowSettings.GetConfig().GetPersistManager().LoadProcessByOwnerActivityID(activityID, templateKey)
);
WfProcessCollection result = new WfProcessCollection();
foreach (IWfProcess process in queryResult)
{
//如果缓存中存在，则使用缓存的数据，如果缓存中不存在，则使用查询到的结果
IWfProcess processNeedToAdd = WfProcessContextCache.Instance.GetOrAddNewValue(process.ID, (cache, key) =>
{
cache.Add(key, process);
return(process);
});
result.Add(processNeedToAdd);
}
return(result);
}
/// <summary>
/// 根据ResourceID得到流程
/// </summary>
/// <param name="resourceID"></param>
/// <returns></returns>
public static WfProcessCollection GetProcessByResourceID(string resourceID)
{
resourceID.NullCheck <WfRuntimeException>("resourceID");
WfProcessCollection processes = new WfProcessCollection();
foreach (KeyValuePair <string, IWfProcess> kp in WfProcessContextCache.Instance)
{
if (string.Compare(kp.Value.ResourceID, resourceID, true) == 0)
{
processes.Add(kp.Value);
break;
}
}
WfProcessCollection persistedProcesses = null;
PerformanceMonitorHelper.GetDefaultMonitor().WriteExecutionDuration(string.Format("LoadProcessByResourceID({0})", resourceID), () =>
persistedProcesses = WorkflowSettings.GetConfig().GetPersistManager().LoadProcessByResourceID(resourceID)
);
persistedProcesses.ForEach(p =>
{
if (processes.ContainsKey(p.ID) == false)
{
processes.Add(p);
}
WfProcessContextCache.Instance[p.ID] = p;
});
return(processes);
}
/// <summary>
/// 调用外部服务。对方会返回一个或一组流程ID。本函数返回这组ID对应的流程。
/// </summary>
/// <param name="startupParams"></param>
/// <param name="template"></param>
/// <returns></returns>
private WfProcessCollection InvokeBranchProcess(WfServiceStartupProcessParams startupParams, IWfBranchProcessTemplateDescriptor template)
{
this.Process.ApplicationRuntimeParameters["serviceOP_Paramas"] = startupParams;
WfServiceInvoker svcInvoker = new WfServiceInvoker(template.OperationDefinition);
object obj = svcInvoker.Invoke();
WfProcessCollection processes = new WfProcessCollection();
WfBranchProcessTemplateDescriptor temp = template as WfBranchProcessTemplateDescriptor;
IList array = obj as IList;
if (array != null)
{
IWfProcess process = null;
foreach (string processID in array)
{
process = WfRuntime.GetProcessByProcessID(processID);
processes.Add(process);
}
temp.BranchProcessKey = process.Descriptor.Key;
}
else
{
IWfProcess process = WfRuntime.GetProcessByProcessID(obj.ToString());
processes.Add(process);
temp.BranchProcessKey = process.Descriptor.Key;
}
return(processes);
}
/// <summary>
/// 按照用户的相关性进行排序
/// </summary>
/// <param name="user"></param>
/// <returns></returns>
public WfProcessCollection SortByUserRelativity(IUser user)
{
List <WfProcessAndWeight> pws = new List <WfProcessAndWeight>();
foreach (IWfProcess process in this)
{
int nWeight = 0;
if (process.HasParentProcess == false)
{
nWeight++;
}
if (user != null && process.CurrentActivity != null && process.CurrentActivity.Assignees.Contains(user))
{
nWeight += 2;
}
pws.Add(new WfProcessAndWeight(nWeight, process));
}
pws.Sort((p1, p2) => p2.Weight - p1.Weight);
WfProcessCollection result = new WfProcessCollection();
pws.ForEach(pw => result.Add(pw.Process));
return(result);
}
/// <summary>
/// 启动一个模版（组）下的一组分支流程，在服务模式下，可能返回多个流程。其它情况返回单个流程
/// </summary>
/// <param name="branchTransferParams"></param>
/// <param name="group"></param>
/// <param name="index"></param>
/// <returns></returns>
private WfProcessCollection StartupBranchProcess(WfBranchProcessTransferParams branchTransferParams, IWfBranchProcessGroup group, int index)
{
WfProcessCollection processes = null;
if (branchTransferParams.Template.OperationDefinition == null)
{
WfProcessStartupParams startupParams = PrepareOneBranchProcessStartupParams(branchTransferParams, group, index);
startupParams.CheckStartProcessUserPermission = false;
processes = new WfProcessCollection();
processes.Add(WfRuntime.StartWorkflow(startupParams));
}
else
{
if (WfRuntime.ProcessContext.EnableServiceCall)
{
WfServiceStartupProcessParams startupParams = PrepareOneServiceStartupProcessParams(branchTransferParams, group, index);
processes = InvokeBranchProcess(startupParams, branchTransferParams.Template);
}
else
{
processes = new WfProcessCollection();
}
}
return(processes);
}
public IWfProcess LoadProcessByActivityID(string activityID)
{
activityID.CheckStringIsNullOrEmpty("activityID");
WfProcessCollection processes = LoadProcessesByActivityID(activityID);
(processes.Count > 0).FalseThrow <WfRuntimeException>(Translator.Translate(Define.DefaultCulture, "不能找到ActivityID为{0}的流程", activityID));
return(processes[0]);
}
public IWfProcess LoadProcessByProcessID(string processID)
{
processID.CheckStringIsNullOrEmpty("processID");
WfProcessCollection processes = LoadProcesses(builder => builder.AppendItem("INSTANCE_ID", processID));
(processes.Count > 0).FalseThrow <WfRuntimeException>(Translator.Translate(Define.DefaultCulture, "不能找到ProcessID为{0}的流程", processID));
return(processes[0]);
}
/// <summary>
/// 内部启动分支流程
/// </summary>
/// <param name="branchTransferParams">分支流程启动参数</param>
/// <param name="addToOwnerBranches"></param>
/// <returns></returns>
internal WfProcessCollection InternalStartupBranchProcesses(WfBranchProcessTransferParams branchTransferParams, bool addToOwnerBranches)
{
WfProcessCollection processes = null;
if (CanStartBranchProcessFromTemplate(branchTransferParams.Template))
{
IWfBranchProcessGroup group = this.BranchProcessGroups[branchTransferParams.Template.Key];
//以模版Key为分支流程实例的分组标准
if (group == null)
{
group = new WfBranchProcessGroup(this, branchTransferParams.Template);
this.BranchProcessGroups.Add(group);
}
WfRuntime.ProcessContext.FirePrepareBranchProcessParams(group, branchTransferParams.BranchParams);
ProcessProgress.Current.MaxStep += branchTransferParams.BranchParams.Count;
ProcessProgress.Current.Response();
//根据模板内的分支流程参数，逐一启动具体流程
for (int i = 0; i < branchTransferParams.BranchParams.Count; i++)
{
//processes = StartupBranchProcess(branchTransferParams, group, group.BranchProcessStatistics.MaxSequence++);
processes = StartupBranchProcess(branchTransferParams, group, i);
processes.ForEach(p =>
{
if (addToOwnerBranches)
{
if (group.Branches.Contains(p) == false)
{
group.Branches.Add(p);
}
}
WfRuntime.ProcessContext.FireAfterStartupBranchProcess(p);
});
ProcessProgress.Current.MaxStep = Math.Max(ProcessProgress.Current.MaxStep, ProcessProgress.Current.CurrentStep + processes.Count);
ProcessProgress.Current.IncrementBy(processes.Count);
ProcessProgress.Current.Response();
}
WfRuntime.ProcessContext.AffectedProcesses.AddOrReplace(this.Process);
}
if (processes == null)
{
processes = new WfProcessCollection();
}
return(processes);
}
/// <summary>
/// 根据流程实例，初始化统计值。主要用于分支流程的初始化
/// </summary>
/// <param name="processes"></param>
internal void SyncProcessesStatus(WfProcessCollection processes)
{
this.Total += processes.Count;
foreach (IWfProcess process in processes)
{
IncreaseByStatus(process.Status);
}
this.MaxSequence = processes.GetMaxSequence();
}
/// <summary>
/// 检查分支流程信息是否存在，且检查分支流程中是否有AllProcessesStatus
/// </summary>
internal void CheckProcessesStatusInBranches()
{
if (this.LoadingType == DataLoadingType.External)
{
if (this._Branches == null)
{
this._Branches = new WfProcessCollection();
this._Branches.AllProcessesStatus = WfRuntime.GetProcessStatusByOwnerActivityID(this._OwnerActivity.ID, this.ProcessTemplate.Key, true);
}
}
}
private static WfProcessCollection LoadBranches(string ownerActID, string templateKey, IWfBranchProcessGroup group)
{
WfProcessCollection branches = WfRuntime.GetProcessByOwnerActivityID(ownerActID, templateKey);
foreach (WfProcess process in branches)
{
process.EntryInfo = group;
}
branches.Sort((p1, p2) => p1.Sequence - p2.Sequence);
return(branches);
}
/// <summary>
/// 检查流程实例信息是否在Branches中
/// </summary>
private void CheckProcessInstancesInBranches()
{
if (this._Branches == null)
{
this._Branches = LoadBranches(this._OwnerActivity.ID, this.ProcessTemplate.Key, this);
}
else
{
if (this._Branches.AllProcessesStatus != null)
{
if (this._Branches.AllProcessesStatus.Count > 0 && this._Branches.Count == 0)
{
WfProcessCollection processLoaded = LoadBranches(this._OwnerActivity.ID, this.ProcessTemplate.Key, this);
this._Branches.CopyFrom(processLoaded);
}
}
}
}
private static WfProcessCollection DataTableToProcessCollection(DataTable table)
{
WfProcessCollection result = new WfProcessCollection();
XElementFormatter formatter = new XElementFormatter();
formatter.OutputShortType = WorkflowSettings.GetConfig().OutputShortType;
foreach (DataRow row in table.Rows)
{
WfProcessInstanceData instanceData = new WfProcessInstanceData();
ORMapping.DataRowToObject(row, instanceData);
XElement extData = GetExtData(instanceData.ExtData);
Encoding originalEncoding = GetEncodingFromExtData(extData);
Encoding preferedEncoding = originalEncoding;
byte[] decompressedData = null;
if (null != instanceData.BinaryData)
{
PerformanceMonitorHelper.GetDefaultMonitor().WriteExecutionDuration(string.Format("Extra Process Data:{0}", instanceData.InstanceID),
() => decompressedData = CompressManager.ExtractBytes(instanceData.BinaryData));
PerformanceMonitorHelper.GetDefaultMonitor().WriteExecutionDuration("EncodeProcessString", () =>
{
preferedEncoding = GetPreferedEncoding(decompressedData, originalEncoding);
instanceData.Data = BytesToProcessData(decompressedData, preferedEncoding);
}
);
}
else
{
(instanceData.Data != null).FalseThrow <ArgumentException>(Translator.Translate(Define.DefaultCulture, "流程实例表的Data和BinaryData都为空"));
}
XElement root = null;
try
{
root = XElement.Parse(instanceData.Data);
}
catch (System.Xml.XmlException)
{
if (decompressedData != null)
{
instanceData.Data = ChangeEncoding(decompressedData, preferedEncoding);
root = XElement.Parse(instanceData.Data);
}
else
{
throw;
}
}
extData.SetAttributeValue("encoding", originalEncoding.BodyName);
WfProcess process = null;
PerformanceMonitorHelper.GetDefaultMonitor().WriteExecutionDuration(string.Format("Deserialize Process:{0}", instanceData.InstanceID),
() => process = (WfProcess)formatter.Deserialize(root));
process.LoadingType = DataLoadingType.External;
process.Activities.ForEach(a =>
{
((WfActivityBase)a).LoadingType = DataLoadingType.External;
WfActivityBuilderBase.LoadActions(a);
});
process.UpdateTag = instanceData.UpdateTag;
process.Context["SerilizationExtData"] = extData.ToString();
result.Add(process);
}
return(result);
}
protected override void OnModifyWorkflow(WfExecutorDataContext dataContext)
{
this.StartedProcesses = ((WfActivityBase)this.OwnerActivity).InternalStartupBranchProcesses(this.BranchTransferParams, false);
}
