void WriteEntry(BufferWriter writer, JournalEntry entry)
{
writer.WriteInt64(entry.Address);
writer.WriteInt32(entry.Data.Length);
writer.WriteBytes(entry.Data);
writer.WriteInt64(entry.Stamp);
var streamNameBytes = Encoding.UTF8.GetBytes(entry.StreamName);
writer.WriteInt32(streamNameBytes.Length);
writer.WriteBytes(streamNameBytes);
}
public byte[] Serialize(Node <EmptyRecordIndexKey> node)
{
var bytes = new byte[MaxSizeForDegree(node.Degree)];
var writer = new BufferWriter(bytes);
writer.WriteInt32(node.Degree); //Degree
writer.WriteInt32(node.EntryList.Count); //Nr of entries
foreach (var entry in node.EntryList.Entries)
{
WriteEntry(writer, entry); //every entry
}
writer.WriteInt32(node.ChildrenAddresses.Count); //Nr of child addresses
foreach (var childAddress in node.ChildrenAddresses.Addresses)
{
writer.WriteInt64(childAddress); //every child address
}
return(writer.Buffer);
}
public byte[] Serialize(CollectionFileRoot root)
{
var expectedSize = sizeof(byte)
+ sizeof(Int32)
+ sizeof(Int64)
+ sizeof(Int64);
var writer = new BufferWriter(new byte[expectedSize]);
writer.WriteByte(SERIALIZATION_VERSION);
writer.WriteInt32(root.FormatVersion);
writer.WriteInt64(root.Head);
writer.WriteInt64(root.NamedRecordIndexAddress);
return(writer.GetTrimmedBuffer());
}
public byte[] Serialize(TransactionJournal journal)
{
var expectedSize = sizeof(byte) + sizeof(Int32) + journal.Entries.Select(entry =>
{
return(sizeof(Int64) +
sizeof(Int32) +
entry.Data.Length +
sizeof(Int64) +
sizeof(Int32) + Encoding.UTF8.GetByteCount(entry.StreamName));
}).Sum();
var writer = new BufferWriter(new byte[expectedSize]);
writer.WriteByte(FORMAT_VERSION);
writer.WriteInt32(journal.Entries.Count);
foreach (var entry in journal.Entries)
{
WriteEntry(writer, entry);
}
return(writer.GetTrimmedBuffer());
}
void WriteEntry(BufferWriter writer, Entry <EmptyRecordIndexKey> entry)
{
writer.WriteInt32(entry.Key.S); //Size
writer.WriteInt64(entry.Key.A); //Address
writer.WriteInt64(entry.Pointer); //Pointer (which is address too);
}
