public ReadSpec GetReadSpec(RCSymbol symbol, int limit, bool force, bool fill)
{
ReadSpec result = new ReadSpec(this, limit, force, fill);
if (limit == 0)
{
limit = int.MaxValue;
}
for (int i = 0; i < symbol.Count; ++i)
{
CountRecord current = Get(symbol[i]);
if (current != null)
{
// Start searching from the first known record.
result.Add(symbol[i], current.start, limit);
}
else
{
// In this case we know there is no data so any search should begin
// from the end of time.
result.Add(symbol[i], _dispatched.Count, limit);
}
}
return(result);
}
public Reader(RCCube source, ReadSpec spec, ReadCounter counter, bool forceGCol, int end)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (spec == null)
{
throw new ArgumentNullException("spec");
}
if (counter == null)
{
throw new ArgumentNullException("counter");
}
_source = source;
_spec = spec;
_counter = counter;
_end = end;
RCArray <string> axisCols = new RCArray <string> (source.Axis.Colset);
if (forceGCol)
{
axisCols.Write("G");
}
if (_source.Axis.Global != null && _source.Axis.Count > 0)
{
_initg = _source.Axis.Global[0];
}
_target = new RCCube(axisCols);
}
public ReadSpec GetReadSpec(RCSymbol symbol, RCLong starts, bool force, bool fill)
{
ReadSpec result = new ReadSpec(this, 0, force, fill);
for (int i = 0; i < symbol.Count; ++i)
{
result.Add(symbol[i], (int)starts[i], int.MaxValue);
}
return(result);
}
public Satisfy CanSatisfy(ReadSpec spec)
{
if (spec.IgnoreDispatchedRows)
{
if (spec.SymbolUnlimited)
{
foreach (SpecRecord specRecord in spec)
{
// CountRecord countRecord = Get (specRecord.symbol);
CountRecord countRecord = Get(specRecord);
// The symbol is missing entirely.
if (countRecord == null)
{
continue;
}
// If there are zero rows for the symbol then we are never satsified.
if (countRecord.count > 0)
{
return(Satisfy.Yes);
}
}
return(Satisfy.No);
}
else
{
foreach (SpecRecord specRecord in spec)
{
// CountRecord countRecord = Get (specRecord.symbol);
CountRecord countRecord = Get(specRecord);
// The symbol is missing entirely.
if (countRecord == null)
{
return(Satisfy.No);
}
// If there are zero rows for the symbol then we are never satsified.
if (countRecord.count == 0)
{
return(Satisfy.No);
}
// We will accept any number of them.
if (specRecord.limit == int.MaxValue)
{
continue;
}
// There are not enough records to satisfy the spec for this symbol.
if (countRecord.count < specRecord.limit)
{
return(Satisfy.No);
}
}
}
}
else
{
if (spec.SymbolUnlimited)
{
foreach (SpecRecord specRecord in spec)
{
// CountRecord countRecord = Get (specRecord.symbol);
CountRecord countRecord = Get(specRecord);
// The symbol is missing entirely.
if (countRecord == null)
{
continue;
}
// Notice that while dispatching we look at count. Here at total.
if (countRecord.total > 0)
{
if (specRecord.start == 0)
{
return(Satisfy.Yes);
}
else
{
return(Satisfy.Maybe);
}
}
}
return(Satisfy.No);
}
else
{
if (spec.RecordCount > 0)
{
foreach (SpecRecord specRecord in spec)
{
CountRecord countRecord = Get(specRecord);
// The symbol is missing entirely.
if (countRecord == null)
{
return(Satisfy.No);
}
// Check there are enough records to satisfy the spec for this symbol.
if (specRecord.start == 0)
{
// We will accept any number of them.
if (specRecord.limit == int.MaxValue)
{
continue;
}
if (countRecord.total < specRecord.limit)
{
return(Satisfy.No);
}
}
else
{
// This is for the case where you use read or last from an arbitrary start
// point.
// Since we don't track where the symbols are in this counter, we won't
// know whether
// The query would be satisfied. We just have to do it and see.
return(Satisfy.Maybe);
}
}
}
else
{
return(Satisfy.No);
}
}
}
return(Satisfy.Yes);
}
