/// <summary>
/// method
/// US:902
/// returns the parsed expression if no errors were found
/// </summary>
/// <param name="strExp"></param>
/// <returns></returns>
public CStringStatus Parse(string strExp)
{
string strPlaceHolder = CExpression.GetNextPlaceHolder(strExp);
while (!string.IsNullOrEmpty(strPlaceHolder))
{
strPlaceHolder = strPlaceHolder.TrimStart(CExpression.BeginPHTkn).TrimEnd(CExpression.EndPHTkn);
CStringStatus status = ParsePlaceHolder(strPlaceHolder);
if (!status.Status)
{
return(status);
}
strExp = strExp.Replace(CExpression.BeginPHTkn + strPlaceHolder + CExpression.EndPHTkn, status.Value);
strPlaceHolder = CExpression.GetNextPlaceHolder(strExp);
}
return(new CStringStatus(true, k_STATUS_CODE.Success, string.Empty, strExp));
}
/// <summary>
/// method
/// US:902
/// executes the actions in the expression passed in
/// </summary>
/// <param name="strExp"></param>
/// <returns></returns>
public CStatus Execute(string strExp)
{
CParseExpression ParseExp = new CParseExpression(BaseData, PatientID, PatCLID, ChecklistID, ItemID);
CStringStatus ss = ParseExp.ParseAction(strExp);
if (!ss.Status)
{
return(ss);
}
switch (ss.Value)
{
case "checklist.cancel()":
return(CancelChecklist(PatCLID));
case "item.disable()":
return(DisableChecklistItem(PatCLID, ItemID));
default:
return(ParseSpecifiedAction(ss.Value));
}
}
/// <summary>
/// method
/// US:902
/// returns the parsed action if no errors were found
/// </summary>
/// <param name="strExp"></param>
/// <returns></returns>
public CStringStatus ParseAction(string strExp)
{
if (string.IsNullOrEmpty(strExp))
{
return(new CStringStatus(false, k_STATUS_CODE.Failed, "TODO", string.Empty));
}
int nParamStartIndex = strExp.IndexOf(CExpression.ParamStartTkn);
int nParamEndIndex = strExp.IndexOf(CExpression.ParamEndTkn);
if (nParamStartIndex < 0 ||
nParamEndIndex < 0 ||
nParamEndIndex < nParamStartIndex)
{
return(new CStringStatus(true, k_STATUS_CODE.Success, string.Empty, strExp));
}
string strParam = strExp.Substring(nParamStartIndex + 1, nParamEndIndex - nParamStartIndex - 1);
CStringStatus status = null;
switch (strParam)
{
case "defaultunknownstate":
case "defaultgoodstate":
case "defaultbadstate":
status = ParseStatic(strParam);
break;
default:
status = ParseDynamicParam(strExp);
break;
}
strExp = strExp.Replace(CExpression.ParamStartTkn + strParam + CExpression.ParamEndTkn,
CExpression.ParamStartTkn + status.Value + CExpression.ParamEndTkn);
return(new CStringStatus(true, k_STATUS_CODE.Success, string.Empty, strExp));
}
/// <summary>
/// method
/// US:902
/// evaluates all the expressions in the list
/// </summary>
/// <returns></returns>
public CStatus Evaluate()
{
CParseExpression ParseExp = new CParseExpression(BaseData, PatientID, PatCLID, ChecklistID, ItemID);
CStatus status = new CStatus();
foreach (CExpression exp in this)
{
CStringStatus ss = ParseExp.Parse(exp.GetIf());
if (!ss.Status)
{
status = ss;
break;
}
if (ss.Value.IndexOf(CExpression.NullTkn) >= 0)
{
CPatChecklistItemData PatChecklistItem = new CPatChecklistItemData(BaseData);
CPatChecklistItemDataItem di = null;
status = PatChecklistItem.GetPatCLItemDI(PatCLID, ItemID, out di);
if (!status.Status)
{
return(status);
}
di.TSID = Convert.ToInt64(k_DEFAULT_STATE_ID.Bad);
di.OSID = Convert.ToInt64(k_DEFAULT_STATE_ID.Unknown);
di.IsOverridden = k_TRUE_FALSE_ID.False;
di.OverrideDate = CDataUtils.GetNullDate();
di.DSID = Convert.ToInt64(k_DEFAULT_STATE_ID.Bad);
status = PatChecklistItem.UpdatePatChecklistItem(di);
if (!status.Status)
{
return(status);
}
continue;
}
int nResult = CLogic.Evaluate(ss.Value);
CExecuteExpression ExecuteExp = new CExecuteExpression(
BaseData,
PatientID,
PatCLID,
ChecklistID,
ItemID);
switch (nResult)
{
// false
case 0:
string strElse = exp.GetElse();
if (!string.IsNullOrEmpty(strElse))
{
status = ExecuteExp.Execute(strElse);
}
break;
// true
case 1:
status = ExecuteExp.Execute(exp.GetThen());
break;
// error
case 2:
status.Status = false;
status.StatusCode = k_STATUS_CODE.Failed;
status.StatusComment = LogicModuleMessages.ERROR_LOGIC + exp.Expression;
break;
}
if (!status.Status)
{
break;
}
}
return(status);
}
/// <summary>
/// method
/// US:902
/// parses a static place holder
/// </summary>
/// <param name="strPlaceHolder"></param>
/// <returns></returns>
private CStringStatus ParseStatic(string strPlaceHolder)
{
CStringStatus status = new CStringStatus();
switch (strPlaceHolder)
{
case "state.good":
status.Value = Convert.ToInt64(k_STATE_ID.Good).ToString();
break;
case "state.unknown":
status.Value = Convert.ToInt64(k_STATE_ID.Unknown).ToString();
break;
case "state.bad":
status.Value = Convert.ToInt64(k_STATE_ID.Bad).ToString();
break;
case "sex.male":
status.Value = Convert.ToInt64(k_SEX.MALE).ToString();
break;
case "sex.female":
status.Value = Convert.ToInt64(k_SEX.FEMALE).ToString();
break;
case "source.vista":
status.Value = Convert.ToInt64(k_SOURCE_TYPE_ID.VistA).ToString();
break;
case "source.vappct":
status.Value = Convert.ToInt64(k_SOURCE_TYPE_ID.VAPPCT).ToString();
break;
case "defaultunknownstate":
status.Value = Convert.ToInt64(k_DEFAULT_STATE_ID.Unknown).ToString();
break;
case "defaultgoodstate":
status.Value = Convert.ToInt64(k_DEFAULT_STATE_ID.Good).ToString();
break;
case "defaultbadstate":
status.Value = Convert.ToInt64(k_DEFAULT_STATE_ID.Bad).ToString();
break;
case "value.selected":
status.Value = Convert.ToInt64(k_TRUE_FALSE_ID.True).ToString();
break;
case "value.notselected":
status.Value = Convert.ToInt64(k_TRUE_FALSE_ID.False).ToString();
break;
default:
return(new CStringStatus(
false,
k_STATUS_CODE.Failed,
LogicModuleMessages.ERROR_PARSE + strPlaceHolder,
CExpression.NullTkn));
}
return(status);
}
