private bool IsChildFunction(BuiltInFunctionIDType idType, string parentID, SCConditionCalculatingContext callerContext)
{
parentID.CheckStringIsNullOrEmpty("parentID");
bool result = false;
SCUser currentUser = (SCUser)callerContext.CurrentObject;
switch (idType)
{
case BuiltInFunctionIDType.CodeName:
result = currentUser.CurrentParents.Exists(p => string.Compare(p.Properties.GetValue("CodeName", string.Empty), parentID, true) == 0);
break;
case BuiltInFunctionIDType.Guid:
result = currentUser.CurrentParentRelations.Exists(r => string.Compare(r.ParentID, parentID, true) == 0);
break;
case BuiltInFunctionIDType.FullPath:
{
SCObjectAndRelation parent = GetObjectByID(idType, parentID, callerContext);
if (parent != null)
{
result = currentUser.CurrentParentRelations.Exists(r => string.Compare(r.ParentID, parent.ID, true) == 0);
}
break;
}
default:
throw new NotSupportedException(string.Format("不支持的BuiltInFunctionIDType类型{0}", idType));
}
return(result);
}
private bool IsChildAllFunction(BuiltInFunctionIDType idType, string parentID, SCConditionCalculatingContext callerContext)
{
parentID.CheckStringIsNullOrEmpty("parentID");
bool result = false;
SCUser currentUser = (SCUser)callerContext.CurrentObject;
switch (idType)
{
case BuiltInFunctionIDType.CodeName:
result = currentUser.CurrentParents.AllAndNotEmpty(p => string.Compare(p.Properties.GetValue("CodeName", string.Empty), parentID, true) == 0);
break;
case BuiltInFunctionIDType.Guid:
result = currentUser.CurrentParentRelations.AllAndNotEmpty(r => string.Compare(r.ParentID, parentID, true) == 0);
break;
case BuiltInFunctionIDType.FullPath:
{
SCObjectAndRelation parent = GetObjectByID(idType, parentID, callerContext);
if (parent != null)
result = currentUser.CurrentParentRelations.AllAndNotEmpty(r => string.Compare(r.ParentID, parent.ID, true) == 0);
break;
}
default:
throw new NotSupportedException(string.Format("不支持的BuiltInFunctionIDType类型{0}", idType));
}
return result;
}
private static SCPropertyAccessorBase GetPropertyAccessor(string funcName, SCConditionCalculatingContext context)
{
SCPropertyAccessorBase result = null;
SchemaNameAndPropertyName snpn = SchemaNameAndPropertyName.FromFullName(funcName);
snpn.CheckIsValid();
if (context.PropertyAccessors.TryGetValue(snpn, out result) == false)
{
result = new DefaultUsersPropertyAccessor(snpn);
context.PropertyAccessors.Add(snpn, result);
}
return(result);
}
private static object CalculateUserFunction(string funcName, ParamObjectCollection arrParams, object callerContext)
{
SCConditionCalculatingContext context = (SCConditionCalculatingContext)callerContext;
object result = null;
if (SCBuiltInFunctionsCalculator.Instance.IsFunction(funcName))
{
//如果是内置函数，则返回内置函数的结果
result = SCBuiltInFunctionsCalculator.Instance.Calculate(funcName, arrParams, context);
}
else
{
//根据函数名称，获取属性访问器
SCPropertyAccessorBase accessor = GetPropertyAccessor(funcName, context);
result = accessor.GetValue(context, arrParams);
}
return(result);
}
private bool PropEndWithFunction(string propName, string suffix, SCConditionCalculatingContext callerContext)
{
string propValue = callerContext.CurrentObject.Properties.GetValue(propName, string.Empty);
return(propValue.EndsWith(suffix, StringComparison.OrdinalIgnoreCase));
}
private SCObjectAndRelation GetObjectByID(BuiltInFunctionIDType idType, string objectID, SCConditionCalculatingContext callerContext)
{
SCCalculatorObjectCache cache = null;
if (callerContext.ExtendedData.ContainsKey("SCCalculatorObjectCache"))
{
cache = (SCCalculatorObjectCache)callerContext.ExtendedData["SCCalculatorObjectCache"];
}
if (cache == null)
{
cache = new SCCalculatorObjectCache();
callerContext.ExtendedData.Add("SCCalculatorObjectCache", cache);
}
SCObjectAndRelation result = null;
if (cache.TryGetValue(idType, objectID, out result) == false)
{
result = QueryObjectByID(idType, objectID);
cache.AddObject(idType, objectID, result);
}
return(result);
}
private bool IsDescendantFunction(BuiltInFunctionIDType idType, string ancestorID, SCConditionCalculatingContext callerContext)
{
ancestorID.CheckStringIsNullOrEmpty("ancestorID");
bool result = false;
SCObjectAndRelation ancestor = GetObjectByID(idType, ancestorID, callerContext);
if (ancestor != null)
{
result = callerContext.CurrentObject.CurrentParentRelations.Exists(r =>
r.FullPath.IndexOf(ancestor.FullPath, StringComparison.OrdinalIgnoreCase) == 0);
}
return(result);
}
private bool PropEndWithFunction(string propName, string suffix, SCConditionCalculatingContext callerContext)
{
string propValue = callerContext.CurrentObject.Properties.GetValue(propName, string.Empty);
return propValue.EndsWith(suffix, StringComparison.OrdinalIgnoreCase);
}
private SCObjectAndRelation GetObjectByID(BuiltInFunctionIDType idType, string objectID, SCConditionCalculatingContext callerContext)
{
SCCalculatorObjectCache cache = null;
if (callerContext.ExtendedData.ContainsKey("SCCalculatorObjectCache"))
cache = (SCCalculatorObjectCache)callerContext.ExtendedData["SCCalculatorObjectCache"];
if (cache == null)
{
cache = new SCCalculatorObjectCache();
callerContext.ExtendedData.Add("SCCalculatorObjectCache", cache);
}
SCObjectAndRelation result = null;
if (cache.TryGetValue(idType, objectID, out result) == false)
{
result = QueryObjectByID(idType, objectID);
cache.AddObject(idType, objectID, result);
}
return result;
}
private bool IsDescendantFunction(BuiltInFunctionIDType idType, string ancestorID, SCConditionCalculatingContext callerContext)
{
ancestorID.CheckStringIsNullOrEmpty("ancestorID");
bool result = false;
SCObjectAndRelation ancestor = GetObjectByID(idType, ancestorID, callerContext);
if (ancestor != null)
result = callerContext.CurrentObject.CurrentParentRelations.Exists(r =>
r.FullPath.IndexOf(ancestor.FullPath, StringComparison.OrdinalIgnoreCase) == 0);
return result;
}
private static SCPropertyAccessorBase GetPropertyAccessor(string funcName, SCConditionCalculatingContext context)
{
SCPropertyAccessorBase result = null;
SchemaNameAndPropertyName snpn = SchemaNameAndPropertyName.FromFullName(funcName);
snpn.CheckIsValid();
if (context.PropertyAccessors.TryGetValue(snpn, out result) == false)
{
result = new DefaultUsersPropertyAccessor(snpn);
context.PropertyAccessors.Add(snpn, result);
}
return result;
}