// TODO: Remove warning after API has been finalized
public override System.Collections.Generic.ICollection <byte[]> GetPayload()
{
System.Collections.Generic.ICollection <byte[]> result = null;
if (spans.IsPayloadAvailable())
{
result = spans.GetPayload();
}
return(result); //TODO: any way to avoid the new construction?
}
// TODO: Remove warning after API has been finalizedb
public override System.Collections.Generic.ICollection <byte[]> GetPayload()
{
System.Collections.Generic.ICollection <byte[]> result = null;
if (includeSpans.IsPayloadAvailable())
{
result = includeSpans.GetPayload();
}
return(result);
}
// TODO: Remove warning after API has been finalized
public override System.Collections.Generic.ICollection <byte[]> GetPayload()
{
System.Collections.Generic.ICollection <byte[]> result = null;
Spans theTop = Top();
if (theTop != null && theTop.IsPayloadAvailable())
{
result = theTop.GetPayload();
}
return(result);
}
/// <summary>The subSpans are ordered in the same doc, so there is a possible match.
/// Compute the slop while making the match as short as possible by advancing
/// all subSpans except the last one in reverse order.
/// </summary>
private bool ShrinkToAfterShortestMatch()
{
matchStart = subSpans[subSpans.Length - 1].Start();
matchEnd = subSpans[subSpans.Length - 1].End();
System.Collections.Generic.Dictionary <byte[], byte[]> possibleMatchPayloads = new System.Collections.Generic.Dictionary <byte[], byte[]>();
if (subSpans[subSpans.Length - 1].IsPayloadAvailable())
{
System.Collections.Generic.ICollection <byte[]> payload = subSpans[subSpans.Length - 1].GetPayload();
foreach (byte[] pl in payload)
{
if (!possibleMatchPayloads.ContainsKey(pl))
{
possibleMatchPayloads.Add(pl, pl);
}
}
}
System.Collections.Generic.List <byte[]> possiblePayload = null;
int matchSlop = 0;
int lastStart = matchStart;
int lastEnd = matchEnd;
for (int i = subSpans.Length - 2; i >= 0; i--)
{
Spans prevSpans = subSpans[i];
if (collectPayloads && prevSpans.IsPayloadAvailable())
{
System.Collections.Generic.ICollection <byte[]> payload = prevSpans.GetPayload();
possiblePayload = new System.Collections.Generic.List <byte[]>(payload.Count);
possiblePayload.AddRange(payload);
}
int prevStart = prevSpans.Start();
int prevEnd = prevSpans.End();
while (true)
{
// Advance prevSpans until after (lastStart, lastEnd)
if (!prevSpans.Next())
{
inSameDoc = false;
more = false;
break; // Check remaining subSpans for final match.
}
else if (matchDoc != prevSpans.Doc())
{
inSameDoc = false; // The last subSpans is not advanced here.
break; // Check remaining subSpans for last match in this document.
}
else
{
int ppStart = prevSpans.Start();
int ppEnd = prevSpans.End(); // Cannot avoid invoking .end()
if (!DocSpansOrdered(ppStart, ppEnd, lastStart, lastEnd))
{
break; // Check remaining subSpans.
}
else
{
// prevSpans still before (lastStart, lastEnd)
prevStart = ppStart;
prevEnd = ppEnd;
if (collectPayloads && prevSpans.IsPayloadAvailable())
{
System.Collections.Generic.ICollection <byte[]> payload = prevSpans.GetPayload();
possiblePayload = new System.Collections.Generic.List <byte[]>(payload.Count);
possiblePayload.AddRange(payload);
}
}
}
}
if (collectPayloads && possiblePayload != null)
{
foreach (byte[] pl in possiblePayload)
{
if (!possibleMatchPayloads.ContainsKey(pl))
{
possibleMatchPayloads.Add(pl, pl);
}
}
}
System.Diagnostics.Debug.Assert(prevStart <= matchStart);
if (matchStart > prevEnd)
{
// Only non overlapping spans add to slop.
matchSlop += (matchStart - prevEnd);
}
/* Do not break on (matchSlop > allowedSlop) here to make sure
* that subSpans[0] is advanced after the match, if any.
*/
matchStart = prevStart;
lastStart = prevStart;
lastEnd = prevEnd;
}
bool match = matchSlop <= allowedSlop;
if (collectPayloads && match && possibleMatchPayloads.Count > 0)
{
matchPayload.AddRange(possibleMatchPayloads.Keys);
}
return(match); // ordered and allowed slop
}
// TODO: Remove warning after API has been finalized
public override bool IsPayloadAvailable()
{
Spans top = Top();
return(top != null && top.IsPayloadAvailable());
}
// TODO: Remove warning after API has been finalized
public override bool IsPayloadAvailable()
{
return(spans.IsPayloadAvailable());
}