public TemplateInstance(long recordPosition, BinaryReader dataStream, ChunkInfo chunk)
{
RecordPosition = recordPosition;
Size = 10; //default size until we know better
SubstitutionEntries = new List <SubstitutionArrayEntry>();
var version = dataStream.ReadByte();
//TODO
//can we not track these internally since they are just going to be in the Template itself anyways?
dataStream.ReadInt32(); //TemplateId
var templateOffset = dataStream.ReadInt32();
dataStream.ReadInt32(); //NextTemplateOffset
Template = chunk.GetTemplate(templateOffset);
Size = Template.Size;
if (templateOffset < recordPosition)
{
//the template has already been defined, so we need to back up before NextTemplateOffset
dataStream.BaseStream.Seek(-4, SeekOrigin.Current);
}
else
{
//new template, so we have to slide forward a bit to get to beginning of template
dataStream.BaseStream.Seek(0x14, SeekOrigin.Current);
//we do not need to process the template bytes here since we did it once when the chunk was originally processed
dataStream.BaseStream.Seek(Size, SeekOrigin.Current);
}
//Template contains the...TEMPLATE and it has a Nodes collection to use later. This, along with the substitution stuff coming next, are what is needed to build an event record.
//substitution array starts here
//first is 32 bit # with how many to expect
//followed by that # of pairs of 16 bit numbers, first is length, second is type
var substitutionArrayLen = dataStream.ReadInt32();
Log.Verbose(" Substitution length: 0x{Length:X}", substitutionArrayLen);
var totalSubstitutionSize = 0;
for (var i = 0; i < substitutionArrayLen; i++)
{
var subSize = dataStream.ReadUInt16();
var subType = dataStream.ReadUInt16();
totalSubstitutionSize += subSize;
Log.Verbose(
" Position: {I} Size: 0x{Size} Type: {Type}", i.ToString().PadRight(5), subSize.ToString("X").PadRight(5), (TagBuilder.ValueType)subType);
SubstitutionEntries.Add(new SubstitutionArrayEntry(i, subSize, (TagBuilder.ValueType)subType));
}
Log.Verbose("Substitution data length: 0x{Size:X}", totalSubstitutionSize);
//get the data into the substitution array entries
foreach (var substitutionArrayEntry in SubstitutionEntries)
{
substitutionArrayEntry.DataBytes = dataStream.ReadBytes(substitutionArrayEntry.Size);
Log.Verbose(" {Entry}", substitutionArrayEntry);
}
}