private Tuple <PropertyId, BinaryData> EncodeDataRecord(
PropertyTag propertyTag,
PropertyValue propertyValue,
IHeapOnNodeGenerator heapOnNodeGenerator,
InternalNIDAllocator nidAllocator,
List <Tuple <NID, BID> > propertiesAllocatedOnSubnodes)
{
if (propertyTag.Type.IsFixedLength())
{
var size = propertyTag.Type.GetFixedLengthTypeSize();
if (size <= 4)
{
return(Tuple.Create(propertyTag.Id, propertyValue.Value));
}
return(AllocatePropertyOnTheHN(propertyTag, propertyValue, heapOnNodeGenerator));
}
if (propertyTag.Type.IsMultiValueFixedLength() || propertyTag.Type.IsVariableLength() || propertyTag.Type.IsMultiValueVariableLength())
{
if (propertyValue.Value.Length <= MaximumHeapOnNodeAllocation)
{
return(AllocatePropertyOnTheHN(propertyTag, propertyValue, heapOnNodeGenerator));
}
}
return(AllocatePropertyOnSubnode(propertyTag, propertyValue, nidAllocator, propertiesAllocatedOnSubnodes));
}
public DataTreeWithPossibleSubnodes Generate(Tuple <PropertyTag, PropertyValue>[] properties)
{
var dataRecords = new List <Tuple <PropertyId, BinaryData> >();
var propertiesAllocatedOnSubnodes = new List <Tuple <NID, BID> >();
var nidAllocator = new InternalNIDAllocator();
var hnGenerator = heapOnNodeGeneratorFactory.Create();
foreach (var property in properties)
{
dataRecords.Add(
EncodeDataRecord(
property.Item1,
property.Item2,
hnGenerator,
nidAllocator,
propertiesAllocatedOnSubnodes));
}
bthGenerator.Generate(2, 6, dataRecords.ToArray(), hnGenerator);
var dataTreeRootBlockId = hnGenerator.Commit(Constants.bTypePC);
return(new DataTreeWithPossibleSubnodes(dataTreeRootBlockId, propertiesAllocatedOnSubnodes.ToArray()));
}
private Tuple <PropertyId, BinaryData> AllocatePropertyOnSubnode(
PropertyTag propertyTag,
PropertyValue propertyValue,
InternalNIDAllocator nidAllocator,
List <Tuple <NID, BID> > propertiesAllocatedOnSubnodes)
{
var dataTreeRootBlockId = dataTreeAllocator.Allocate(new[] { propertyValue.Value });
var nid = nidAllocator.New();
var hnid = new HNID(nid);
propertiesAllocatedOnSubnodes.Add(Tuple.Create(nid, dataTreeRootBlockId));
return(Tuple.Create(propertyTag.Id, hnidEncoder.Encode(hnid)));
}
