/// <summary>Add filter callback to an event evaluator, which could be either an index node or a set node.</summary>
/// <param name="remainingParameters">any remaining parameters</param>
/// <param name="filterCallback">the filter callback</param>
/// <param name="eventEvaluator">to add the filterCallback to.</param>
/// <param name="lockFactory">
/// <para>the lock factory</para>
/// </param>
/// <returns>boolean indicating if the eventEvaluator was successfully added</returns>
private static bool AddToEvaluator(
ArrayDeque<FilterValueSetParam> remainingParameters,
FilterHandle filterCallback,
EventEvaluator eventEvaluator,
FilterServiceGranularLockFactory lockFactory)
{
if (eventEvaluator is FilterHandleSetNode) {
var node = (FilterHandleSetNode) eventEvaluator;
AddToNode(remainingParameters, filterCallback, node, lockFactory);
return true;
}
// Check if the next index matches any of the remaining filterCallback parameters
var nextIndex = (FilterParamIndexBase) eventEvaluator;
var parameter = IndexHelper.FindParameter(remainingParameters, nextIndex);
if (parameter != null) {
remainingParameters.Remove(parameter);
AddToIndex(remainingParameters, filterCallback, nextIndex, parameter.FilterForValue, lockFactory);
return true;
}
// This eventEvaluator does not work with any of the remaining filter parameters
return false;
}
public void TestFindParameter()
{
var indexOne = IndexFactory.CreateIndex(MakeLookupable("BoolPrimitive"), lockFactory, FilterOperator.EQUAL);
Assert.IsNull(IndexHelper.FindParameter(parameters, indexOne));
var indexTwo = IndexFactory.CreateIndex(MakeLookupable("string"), lockFactory, FilterOperator.EQUAL);
Assert.AreEqual(parameterThree, IndexHelper.FindParameter(parameters, indexTwo));
var indexThree = IndexFactory.CreateIndex(MakeLookupable("IntPrimitive"), lockFactory, FilterOperator.GREATER);
Assert.AreEqual(parameterOne, IndexHelper.FindParameter(parameters, indexThree));
}