/* F E V A L U A T E */
/*----------------------------------------------------------------------------
* %%Function: FEvaluate
* %%Qualified: AzLog.AzLogFilter.FEvaluate
* %%Contact: rlittle
*
* Evaluate the item against the filter, return true if it matches
* ----------------------------------------------------------------------------*/
public bool FEvaluate(ILogFilterItem ilf)
{
if (m_plazlfo == null || m_plazlfo.Count == 0)
{
return(true);
}
// evaluate the list using a stack...
List <bool> plfStack = new List <bool>();
for (int i = 0; i < m_plazlfo.Count; i++)
{
AzLogFilterOperation azlfo = m_plazlfo[i];
switch (azlfo.Op)
{
case AzLogFilterOperation.OperationType.Value:
plfStack.Add(azlfo.Condition.FEvaluate(ilf));
break;
case AzLogFilterOperation.OperationType.And:
{
bool f1 = plfStack[plfStack.Count - 1];
bool f2 = plfStack[plfStack.Count - 2];
plfStack.RemoveRange(plfStack.Count - 2, 2);
plfStack.Add(f1 && f2);
break;
}
case AzLogFilterOperation.OperationType.Or:
{
bool f1 = plfStack[plfStack.Count - 1];
bool f2 = plfStack[plfStack.Count - 2];
plfStack.RemoveRange(plfStack.Count - 2, 2);
plfStack.Add(f1 || f2);
break;
}
}
}
if (plfStack.Count > 1)
{
throw new Exception("expression did not reduce");
}
return(plfStack[0]);
}
/* A D D */
/*----------------------------------------------------------------------------
%%Function: Add
%%Qualified: AzLog.AzLogFilter.Add
%%Contact: rlittle
add a boolean log filter operation
----------------------------------------------------------------------------*/
public void Add(AzLogFilterOperation.OperationType ot)
{
InvalFilterID();
m_plazlfo.Add(new AzLogFilterOperation(ot, null));
}
