public Engine()
{
_source = null;
_destination = null;
_matchList = null;
_diffStateList = null;
_level = DiffEngineLevel.Fast;
}
public DiffEngine()
{
_source = null;
_dest = null;
_matchList = null;
_stateList = null;
_level = DiffEngineLevel.FastImperfect;
}
public DiffEngine()
{
_source = null;
_dest = null;
_matchList = null;
_stateList = null;
_level = DiffEngineLevel.FastImperfect;
}
public double ProcessDiff(IDiffList source, IDiffList destination)
{
DateTime dt = DateTime.Now;
_source = source;
_dest = destination;
_matchList = new ArrayList();
int dcount = _dest.Count();
int scount = _source.Count();
if ((dcount > 0) && (scount > 0))
{
_stateList = new DiffStateList(dcount);
ProcessRange(0, dcount - 1, 0, scount - 1);
}
TimeSpan ts = DateTime.Now - dt;
return(ts.TotalSeconds);
}
public double ProcessDiff(IDiffList source, IDiffList destination)
{
DateTime dt = DateTime.Now;
_source = source;
_dest = destination;
_matchList = new ArrayList();
int dcount = _dest.Count();
int scount = _source.Count();
if ((dcount > 0)&&(scount > 0))
{
_stateList = new DiffStateList(dcount);
ProcessRange(0,dcount - 1,0, scount - 1);
}
TimeSpan ts = DateTime.Now - dt;
return ts.TotalSeconds;
}
public ArrayList ProcessDiff(DiffEngineLevel level)
{
ArrayList result = new ArrayList();
if (_source == null || _dest == null)
return result;
_level = level;
_matchList = new ArrayList();
int dcount = _dest .Count();
int scount = _source.Count();
if ((dcount > 0) && (scount > 0)) {
_stateList = new DiffStateList(dcount);
ProcessRange(0, dcount - 1, 0, scount - 1);
}
//Deal with the special case of empty files
if (dcount == 0) {
if (scount > 0) {
result.Add(DiffResultSpan.CreateDeleteSource(0, scount));
}
return result;
} else {
if (scount == 0) {
result.Add(DiffResultSpan.CreateAddDestination(0, dcount));
return result;
}
}
_matchList.Sort();
int curDest = 0;
int curSource = 0;
DiffResultSpan last = null;
//Process each match record
foreach (DiffResultSpan drs in _matchList) {
if ((!AddChanges(result, curDest, drs.DestIndex, curSource, drs.SourceIndex)) &&
(last != null)) {
last.AddLength(drs.Length);
} else {
result.Add(drs);
}
curDest = drs.DestIndex + drs.Length;
curSource = drs.SourceIndex + drs.Length;
last = drs;
}
//Process any tail end data
AddChanges(result, curDest, dcount, curSource, scount);
return result;
}
