/// <summary>
/// Add a new Node to the list.
/// </summary>
public void Add(NPOI_Node content)
{
size++;
Node tempCurrent = current;
var rowTypeString = HelpersMethods.StringArrayToString(content.Cells.Select(x => x.CellType.ToString()).ToArray());
var rowValueString = HelpersMethods.StringArrayToString(content.Cells.Select(x => HelpersMethods.GetICellStringValue(x)).ToArray());
var typeHash = HelpersMethods.GetMD5(Encoding.ASCII.GetBytes(rowTypeString));
var valuesHash = HelpersMethods.GetMD5(Encoding.ASCII.GetBytes(rowValueString));
// This is a more verbose implementation to avoid adding nodes to the head of the list
var node = new Node()
{
NodeContent = content,
TypesHash = typeHash,
ValuesHash = valuesHash
};
if (head == null)
{
// This is the first node. Make it the head
head = node;
}
else
{
// This is not the head. Make it current's next node.
current.Next = node;
node.Previous = tempCurrent;
}
// Makes newly added node the current node
current = node;
// This implementation is simpler but adds nodes in reverse order. It adds nodes to the head of the list
//head = new Node()
//{
// Next = head,
// NodeContent = content
//};
}
private void _buildHeadersCombinationFromAttributes()
{
PropertyInfo[] props = _model.GetProperties();
// convert to dictionary
var headders = props
.Where(x => x.GetCustomAttribute <TableHeader>() != null)
.Select
(
x => new KeyValuePair <int, KeyValuePair <string, string[]> >
(
x.GetCustomAttribute <TableHeader>().Index,
new KeyValuePair <string, string[]>(x.Name, x.GetCustomAttribute <TableHeader>().Headers)
)
)
.OrderBy(x => x.Key)
.ToList();
// possible combination count & check
//var combinationPerProperty = headders
// .Select(x => x.Value.Value.Length)
// .ToArray<int>();
//int combinationCount = combinationPerProperty.Aggregate(1, (a, b) => a * b);
List <string[]> combinations = _getCombinations(headders);
_headersCombinationsHash = _getCombinations(headders).Select(x =>
{
byte[] headder = Encoding.ASCII.GetBytes(HelpersMethods.StringArrayToString(x.ToArray()));
return(HelpersMethods.GetMD5(headder));
}).ToArray <string>();
_headderMap = _getCombinations(headders).ToDictionary(k =>
{
return(HelpersMethods.GetMD5(Encoding.ASCII.GetBytes(HelpersMethods.StringArrayToString(k.ToArray()))));
}
, v => v.ToArray());
}
