public static Dictionary <I, T> LoadIndex <I, T>(
string path,
IIndexInfo <I> indexInfo,
out List <EntityIndex <T> > entities
) where T : class, ISerializable
{
var map = new Dictionary <I, T>();
object[] ctorArgs = new object[1];
var indexType = indexInfo.TypeName;
string indexPath = Path.Combine(path, indexType, $"{indexType}.idx");
string typesPath = Path.Combine(path, indexType, $"{indexType}.tdb");
entities = new List <EntityIndex <T> >();
if (!File.Exists(indexPath) || !File.Exists(typesPath))
{
return(map);
}
using FileStream idx = new FileStream(indexPath, FileMode.Open, FileAccess.Read, FileShare.Read);
BinaryReader idxReader = new BinaryReader(idx);
using FileStream tdb = new FileStream(typesPath, FileMode.Open, FileAccess.Read, FileShare.Read);
BinaryReader tdbReader = new BinaryReader(tdb);
List <Tuple <ConstructorInfo, string> > types = ReadTypes <I>(tdbReader);
var count = idxReader.ReadInt32();
for (int i = 0; i < count; ++i)
{
var typeID = idxReader.ReadInt32();
var number = idxReader.ReadUInt32();
var pos = idxReader.ReadInt64();
var length = idxReader.ReadInt32();
Tuple <ConstructorInfo, string> objs = types[typeID];
if (objs == null)
{
continue;
}
T t;
ConstructorInfo ctor = objs.Item1;
I indexer = indexInfo.CreateIndex(number);
ctorArgs[0] = indexer;
t = ctor.Invoke(ctorArgs) as T;
if (t != null)
{
entities.Add(new EntityIndex <T>(t, typeID, pos, length));
map[indexer] = t;
}
}
tdbReader.Close();
idxReader.Close();
return(map);
}
public static Dictionary <I, T> LoadIndex <I, T>(
string path,
IIndexInfo <I> indexInfo,
out List <EntityIndex <T> > entities
) where T : class, ISerializable
{
var map = new Dictionary <I, T>();
object[] ctorArgs = new object[1];
var indexType = indexInfo.TypeName;
string indexPath = Path.Combine(path, indexType, $"{indexType}.idx");
string typesPath = Path.Combine(path, indexType, $"{indexType}.tdb");
entities = new List <EntityIndex <T> >();
if (!File.Exists(indexPath) || !File.Exists(typesPath))
{
return(map);
}
using FileStream idx = new FileStream(indexPath, FileMode.Open, FileAccess.Read, FileShare.Read);
BinaryReader idxReader = new BinaryReader(idx);
using FileStream tdb = new FileStream(typesPath, FileMode.Open, FileAccess.Read, FileShare.Read);
BinaryReader tdbReader = new BinaryReader(tdb);
List <Tuple <ConstructorInfo, string> > types = ReadTypes <I>(tdbReader);
int count;
var version = idxReader.ReadInt32();
// Handle non-versioned (version 0).
if (version > _idxVersion || idx.Length - 4 - version * 20 == 0)
{
count = version;
version = 0;
}
else
{
count = idxReader.ReadInt32();
}
var now = DateTime.UtcNow;
for (int i = 0; i < count; ++i)
{
var typeID = idxReader.ReadInt32();
var serial = idxReader.ReadUInt32();
var created = version == 0 ? now : new DateTime(idxReader.ReadInt64(), DateTimeKind.Utc);
var lastSerialized = version == 0 ? DateTime.MinValue : new DateTime(idxReader.ReadInt64(), DateTimeKind.Utc);
var pos = idxReader.ReadInt64();
var length = idxReader.ReadInt32();
Tuple <ConstructorInfo, string> objs = types[typeID];
if (objs == null)
{
continue;
}
ConstructorInfo ctor = objs.Item1;
I indexer = indexInfo.CreateIndex(serial);
ctorArgs[0] = indexer;
if (ctor.Invoke(ctorArgs) is T t)
{
t.Created = created;
t.LastSerialized = lastSerialized;
entities.Add(new EntityIndex <T>(t, typeID, pos, length));
map[indexer] = t;
}
}
tdbReader.Close();
idxReader.Close();
return(map);
}
