private void UnhookOldEnvironments(WorkbookEvaluator[] evaluators)
{
List <object> oldEnvs = new List <object>();
for (int i = 0; i < evaluators.Length; i++)
{
oldEnvs.Add(evaluators[i].GetEnvironment());
}
CollaboratingWorkbooksEnvironment[] oldCWEs = new CollaboratingWorkbooksEnvironment[oldEnvs.Count];
oldCWEs = (CollaboratingWorkbooksEnvironment[])oldEnvs.ToArray();
for (int i = 0; i < oldCWEs.Length; i++)
{
oldCWEs[i].Unhook();
}
}
public static void Setup(string[] workbookNames, WorkbookEvaluator[] evaluators)
{
int nItems = workbookNames.Length;
if (evaluators.Length != nItems)
{
throw new ArgumentException("Number of workbook names is " + nItems
+ " but number of evaluators is " + evaluators.Length);
}
if (nItems < 1)
{
throw new ArgumentException("Must provide at least one collaborating worbook");
}
CollaboratingWorkbooksEnvironment env = new CollaboratingWorkbooksEnvironment(workbookNames, evaluators, nItems);
HookNewEnvironment(evaluators, env);
}
public WorkbookEvaluator(IEvaluationWorkbook workbook, IEvaluationListener evaluationListener, IStabilityClassifier stabilityClassifier, UDFFinder udfFinder)
{
_workbook = workbook;
_evaluationListener = evaluationListener;
_cache = new EvaluationCache(evaluationListener);
_sheetIndexesBySheet = new Dictionary <object, object>();
_sheetIndexesByName = new Dictionary <string, int>();
_collaboratingWorkbookEnvironment = CollaboratingWorkbooksEnvironment.EMPTY;
_workbookIx = 0;
_stabilityClassifier = stabilityClassifier;
AggregatingUDFFinder defaultToolkit = // workbook can be null in unit tests
workbook == null ? null : (AggregatingUDFFinder)workbook.GetUDFFinder();
if (defaultToolkit != null && udfFinder != null)
{
defaultToolkit.Add(udfFinder);
}
_udfFinder = defaultToolkit;
}
private static void HookNewEnvironment(WorkbookEvaluator[] evaluators, CollaboratingWorkbooksEnvironment env)
{
// All evaluators will need To share the same cache.
// but the cache takes an optional evaluation listener.
int nItems = evaluators.Length;
IEvaluationListener evalListener = evaluators[0].GetEvaluationListener();
// make sure that all evaluators have the same listener
for (int i = 0; i < nItems; i++)
{
if (evalListener != evaluators[i].GetEvaluationListener())
{
// This would be very complex To support
throw new Exception("Workbook evaluators must all have the same evaluation listener");
}
}
EvaluationCache cache = new EvaluationCache(evalListener);
for (int i = 0; i < nItems; i++)
{
evaluators[i].AttachToEnvironment(env, cache, i);
}
}
/* package */
public void DetachFromEnvironment()
{
_collaboratingWorkbookEnvironment = CollaboratingWorkbooksEnvironment.EMPTY;
_cache = new EvaluationCache(_evaluationListener);
_workbookIx = 0;
}
/* package */
public void AttachToEnvironment(CollaboratingWorkbooksEnvironment collaboratingWorkbooksEnvironment, EvaluationCache cache, int workbookIx)
{
_collaboratingWorkbookEnvironment = collaboratingWorkbooksEnvironment;
_cache = cache;
_workbookIx = workbookIx;
}