private void ReadRootPartition()
{
SeqReadResult result;
_reader.Reposition(0);
while ((result = _reader.TryReadNext()).Success)
{
var rec = result.LogRecord;
switch (rec.RecordType)
{
case LogRecordType.PartitionType:
var r = ((PartitionTypeLogRecord)rec).Record;
if (r.StringPayload == RootPartitionTypeName && r.SubHeader.PartitionId == Guid.Empty)
{
RootTypeId = r.Header.RecordId;
_log.Debug("Root partition type read, id: {id}", RootTypeId);
break;
}
throw new InvalidDataException(
"Unexpected partition type encountered while trying to read the root partition type.");
case LogRecordType.Partition:
var p = ((PartitionLogRecord)rec).Record;
if (p.StringPayload == RootPartitionName && p.SubHeader.PartitionTypeId == RootTypeId &&
p.SubHeader.ParentPartitionId == Guid.Empty)
{
RootId = p.Header.RecordId;
_recordFactory.SetRootPartitionId(RootId.Value);
_log.Debug("Root partition read, id: {id}", RootId);
return;
}
throw new InvalidDataException(
"Unexpected partition encountered while trying to read the root partition.");
case LogRecordType.System:
var systemLogRecord = (ISystemLogRecord)result.LogRecord;
if (systemLogRecord.SystemRecordType == SystemRecordType.Epoch)
{
continue;
}
throw new ArgumentOutOfRangeException("SystemRecordType",
"Unexpected system record while trying to read the root partition");
default:
throw new ArgumentOutOfRangeException("RecordType",
"Unexpected record while trying to read the root partition");
}
}
}
public SeqReadResult TryReadNext()
{
return(Reader.TryReadNext());
}
