public IEnumerable <IDataItem> GetAll(IKey key)
{
List <DataBlockInfo> offsets = null;
if (isSealed)
{
offsets = GetOffsetListFromHeader(key);
}
else if (GetHelper(key))
{
offsets = index[key];
}
else
{
return(null);
}
DataItems <KeyType, ValType> di = null;
if (offsets != null)
{
di = new DataItems <KeyType, ValType>(offsets, this, key);
}
return(di);
}
public IEnumerable <IDataItem> GetAllWithSkip(IKey key, long startTimeStamp, long endTimeStamp, long skip)
{
List <DataBlockInfo> allOffsets = null;
if (isSealed)
{
allOffsets = GetOffsetListFromHeader(key);
}
else if (GetHelper(key))
{
allOffsets = index[key];
}
else
{
return(null);
}
DataItems <KeyType, ValType> di = null;
if (allOffsets != null)
{
List <DataBlockInfo> requiredOffsets = new List <DataBlockInfo>();
foreach (DataBlockInfo datablockinfo in allOffsets)
{
if (datablockinfo.ts > endTimeStamp)
{
break;
}
else if (datablockinfo.ts >= startTimeStamp && datablockinfo.ts <= endTimeStamp && (datablockinfo.ts - startTimeStamp) % skip == 0)
{
requiredOffsets.Add(datablockinfo);
}
}
di = new DataItems <KeyType, ValType>(requiredOffsets, this, key);
}
return(di);
}
public IEnumerable <IDataItem> GetAll(IKey key, long startTimeStamp, long endTimeStamp)
{
if (logger != null)
{
logger.Log("Start ValueDataStream Get Offset");
}
List <DataBlockInfo> allOffsets = null;
if (isSealed)
{
allOffsets = GetOffsetListFromHeader(key);
}
else if (GetHelper(key))
{
allOffsets = index[key];
}
else
{
return(null);
}
DataItems <KeyType, ValType> di = null;
if (allOffsets != null)
{
List <DataBlockInfo> offsets = new List <DataBlockInfo>();
int startTSIndex = allOffsets.BinarySearch(new DataBlockInfo(startTimeStamp, 0), new DataBlockInfoComparer());
int endTSIndex = allOffsets.BinarySearch(new DataBlockInfo(endTimeStamp, 0), new DataBlockInfoComparer());
if (startTSIndex < 0)
{
startTSIndex = ~startTSIndex;
}
if (endTSIndex < 0)
{
endTSIndex = ~endTSIndex - 1;
}
for (int i = startTSIndex; i <= endTSIndex; i++)
{
offsets.Add(allOffsets.ElementAt(i));
}
/*
* foreach (DataBlockInfo tso in allOffsets)
* {
* if (tso.Between(startTimeStamp, endTimeStamp))
* {
* offsets.Add(tso);
* }
* }
*/
di = new DataItems <KeyType, ValType>(offsets, this, key);
if (logger != null)
{
logger.Log("End ValueDataStream Get Offset");
}
}
return(di);
}
