private WitnessList FindBestMatchInFullList(WitnessRecord W1Record, WitnessRecord W2Record, bool bNoSplit)
{
var revWitnesList = ConstraintMatching(W1Record, W2Record, bNoSplit);
var W1RecordLen = W1Record.GetWitnessRecordItems().Count;
var W2RecordLen = W2Record.GetWitnessRecordItems().Count;
var revRecordLen = revWitnesList.FullMergeWintess[0].GetWitnessRecordItems().Count;
if (!((revRecordLen > W1RecordLen) && (revRecordLen > W2RecordLen)))
{
revWitnesList.addToPartialMerge(W1Record);
revWitnesList.addToPartialMerge(W2Record);
revWitnesList.FullMergeWintess.Clear();
}
return revWitnesList;
}
protected WitnessList ConstraintMatching(WitnessRecord WitnessOne, WitnessRecord WitnessTwo, bool bIgnoreIfSplit)
{
WitnessList newWitnessList = new WitnessList(ref wintessList);
List<string> newRecordItems = new List<string>();
List<string> subWitnessitems = null;
bool bSplit = false;
int iLastVistedPos = 0;
string lastMatchdString = string.Empty;
try
{
foreach (var WOneRecordItem in WitnessOne.GetWitnessRecordItems())
{
string witnessItem_W1 = WOneRecordItem.getWitness();
bool bFirstItem_W1 = WOneRecordItem.IsFirstItem;
bool bLastItem_W1 = WOneRecordItem.isLastItem;
bool bNextItem_W1 = false;
int ItemIndex;
if (!bFirstItem_W1 && !bLastItem_W1)
bNextItem_W1 = true;
bool bItemMatched = isItemMatched(witnessItem_W1, WitnessTwo, out ItemIndex);
var WitnessTwoItemsList = WitnessTwo.GetWitnessRecordItems();
if (bItemMatched)
{
int stPos = WitnessTwo.LastVistedItem + 1;
var WitnessTwoItems = WitnessTwoItemsList[ItemIndex];
string witnessItem_W2 = WitnessTwoItems.getWitness();
bool bFirstItem_W2 = WitnessTwoItems.IsFirstItem;
bool bLastItem_W2 = WitnessTwoItems.isLastItem;
bool bNextItem_W2 = false;
string witnessGroup = WitnessTwoItems.WitnessGroup;
lastMatchdString = witnessItem_W2;
if (!bFirstItem_W2 && !bLastItem_W2)
{
bNextItem_W2 = true;
}
if ((bFirstItem_W1 && bFirstItem_W2) ||
(bNextItem_W1 && bFirstItem_W2) ||
(bLastItem_W1 && bFirstItem_W2))
{
newRecordItems.Add(witnessItem_W2);
WitnessTwo.LastVistedItem = ItemIndex;
}
else if ((bFirstItem_W1 && bNextItem_W2) ||
(bFirstItem_W1 && bLastItem_W2))
{
for (int j = stPos; j <= ItemIndex; j++)
{
newRecordItems.Add(WitnessTwoItemsList[j].getWitness());
}
WitnessTwo.LastVistedItem = ItemIndex;
}
else if ((bNextItem_W1 && bNextItem_W2) ||
(bNextItem_W1 && bLastItem_W2))
{
WitnessTwo.LastVistedItem = ItemIndex;
if (WitnessOne.GetPrevItemMatched(witnessGroup))
{
for (int j = stPos; j <= ItemIndex; j++)
{
newRecordItems.Add(WitnessTwoItemsList[j].getWitness());
}
}
else
{
if (!bIgnoreIfSplit)
{
//split
bSplit = true;
subWitnessitems = new List<string>();
int stIndex = stPos > 0 ? (stPos - 1) : -1;
if (stIndex >= 0)
CopyTillLastMatch(ref newRecordItems, WitnessTwoItemsList[stIndex].getWitness(), ref subWitnessitems);
for (int j = stPos; j <= ItemIndex; j++)
{
subWitnessitems.Add(WitnessTwoItemsList[j].getWitness());
}
newRecordItems.Add(witnessItem_W2);
}
}
}
else if ((bLastItem_W1 && bNextItem_W2) ||
(bLastItem_W1 && bLastItem_W2))
{
WitnessTwo.LastVistedItem = WitnessTwoItemsList.Count;
if (WitnessOne.GetPrevItemMatched(witnessGroup))
{
for (int j = stPos; j < WitnessTwoItemsList.Count; j++)
{
newRecordItems.Add(WitnessTwoItemsList[j].getWitness());
}
}
else
{
if (!bIgnoreIfSplit)
{
//split
bSplit = true;
subWitnessitems = new List<string>();
int stIndex = stPos > 0 ? (stPos - 1) : -1;
if (stIndex >= 0)
CopyTillLastMatch(ref newRecordItems, WitnessTwoItemsList[stIndex].getWitness(), ref subWitnessitems);
int matchedItemPos = stPos;
bool bVisit = false;
for (int j = stPos; j < WitnessTwoItemsList.Count; j++)
{
if (witnessItem_W2.Equals(WitnessTwoItemsList[j].getWitness()))
{
if (!bVisit)
{
matchedItemPos = j;
bVisit = true;
}
}
subWitnessitems.Add(WitnessTwoItemsList[j].getWitness());
}
for (int j = matchedItemPos; j < WitnessTwoItemsList.Count; j++)
{
newRecordItems.Add(WitnessTwoItemsList[j].getWitness());
}
}
}
}
iLastVistedPos = WitnessTwo.LastVistedItem;
WitnessOne.SetPrevItemMatched(true, witnessGroup);
}
else
{
iLastVistedPos++;
var groupName = WitnessTwoItemsList[0].WitnessGroup;
if (!bIgnoreIfSplit)
{
if (iLastVistedPos + 1 == WitnessTwoItemsList.Count) // last item in second list
{
bSplit = true;
subWitnessitems = new List<string>();
CopyTillLastMatch(ref newRecordItems, lastMatchdString, ref subWitnessitems);
for (int j = WitnessTwo.LastVistedItem + 1; j < WitnessTwoItemsList.Count; j++)
{
subWitnessitems.Add(WitnessTwoItemsList[j].getWitness());
}
}
if (bLastItem_W1 && WitnessOne.GetPrevItemMatched(groupName))
{
if ((iLastVistedPos + 1) > WitnessTwoItemsList.Count) // No more elements in W2
{
if (subWitnessitems == null)
subWitnessitems = new List<string>();
subWitnessitems.Add(witnessItem_W1);
}
}
}
newRecordItems.Add(witnessItem_W1);
WitnessOne.SetPrevItemMatched(false, groupName);
}
}
if (!bSplit)
{
newWitnessList.addToFullMerge(CreateWitnessRecord(newRecordItems));
}
else
{
if (!bIgnoreIfSplit)
{
if (subWitnessitems != null)
{
newWitnessList.addToPartialMerge(CreateWitnessRecord(subWitnessitems));
}
newWitnessList.addToPartialMerge(CreateWitnessRecord(newRecordItems));
}
else
newWitnessList.addToPartialMerge(WitnessTwo);
}
}
catch (Exception e)
{
Console.WriteLine("Contraint matching error" + e.Message);
}
finally
{
WitnessTwo.LastVistedItem = -1;
}
return newWitnessList;
}