public DocumentLinkedList GetDocument()
{
DocumentLinkedList document = _documentLinkedLists.First.Value;
_documentLinkedLists.RemoveFirst();
return(document);
}
public void AddDocument(DocumentLinkedList document)
{
if (document == null)
{
throw new ArgumentNullException(nameof(document));
}
AddDocumentToPriorityNode(document, document.Priority);
}
private void AddDocumentToPriorityNode(DocumentLinkedList document, int priority)
{
if (priority > 9 || priority < 0)
{
throw new ArgumentException("Priority must be Between 0 and 9");
}
if (_priorityNode[priority].Value == null)
{
--priority;
if (priority <= 0)
{
//AddDocumentToPriorityNode(document, priority);
}
else
{
_documentLinkedLists.AddLast(document);
_priorityNode[document.Priority] = _documentLinkedLists.Last;
}
}
else
{
LinkedListNode <DocumentLinkedList> prioNode = _priorityNode[priority];
if (priority == document.Priority)
{
_documentLinkedLists.AddAfter(prioNode, document);
_priorityNode[document.Priority] = prioNode.Next;
}
else
{
LinkedListNode <DocumentLinkedList> firstNode = prioNode;
while (firstNode.Previous != null && firstNode.Previous.Value.Priority == prioNode.Value.Priority)
{
firstNode = prioNode;
prioNode = firstNode;
}
_documentLinkedLists.AddBefore(firstNode, document);
_priorityNode[document.Priority] = firstNode.Previous;
}
}
}