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);
}
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);
}
}
private void UnhookOldEnvironments(WorkbookEvaluator[] evaluators)
{
ArrayList oldEnvs = new ArrayList();
for (int i = 0; i < evaluators.Length; i++)
{
oldEnvs.Add(evaluators[i].GetEnvironment());
}
CollaboratingWorkbooksEnvironment[] oldCWEs = new CollaboratingWorkbooksEnvironment[oldEnvs.Count];
oldCWEs = (CollaboratingWorkbooksEnvironment[])oldEnvs.ToArray(typeof(CollaboratingWorkbooksEnvironment));
for (int i = 0; i < oldCWEs.Length; i++)
{
oldCWEs[i].Unhook();
}
}