public bool Upsert(T obj)
{
Debug.Assert(typeof(T) == obj.GetType(), AssertNotDerivedTypesMsg);
var keyBytes = KeyBytes(obj);
var valueBytes = ValueBytes(obj);
ResetKeyPrefix();
if (_kvtr.Find(keyBytes) == FindResult.Exact)
{
var oldValueBytes = _kvtr.GetValue();
_kvtr.CreateOrUpdateKeyValue(keyBytes, valueBytes);
if (_hasSecondaryIndexes)
{
UpdateSecondaryIndexes(obj, keyBytes, oldValueBytes);
}
FreeContentInUpdate(oldValueBytes, valueBytes);
return(false);
}
_kvtr.CreateOrUpdateKeyValue(keyBytes, valueBytes);
if (_hasSecondaryIndexes)
{
AddIntoSecondaryIndexes(obj);
}
_modificationCounter.MarkModification();
return(true);
}
/// <summary>
/// Writes all key value pairs in current prefix to stream (prefix itself is not written)
/// </summary>
/// <param name="transaction">transaction from where export all data</param>
/// <param name="stream">where to write it to</param>
public static void Export(IKeyValueDBTransaction transaction, Stream stream)
{
if (transaction == null) throw new ArgumentNullException(nameof(transaction));
if (stream == null) throw new ArgumentNullException(nameof(stream));
if (!stream.CanWrite) throw new ArgumentException("stream must be writeable", nameof(stream));
var keyValueCount = transaction.GetKeyValueCount();
var tempbuf = new byte[16];
tempbuf[0] = (byte)'B';
tempbuf[1] = (byte)'T';
tempbuf[2] = (byte)'D';
tempbuf[3] = (byte)'B';
tempbuf[4] = (byte)'E';
tempbuf[5] = (byte)'X';
tempbuf[6] = (byte)'P';
tempbuf[7] = (byte)'2';
PackUnpack.PackInt64LE(tempbuf, 8, keyValueCount);
stream.Write(tempbuf, 0, 16);
transaction.FindFirstKey();
for (long kv = 0; kv < keyValueCount; kv++)
{
var key = transaction.GetKey();
PackUnpack.PackInt32LE(tempbuf, 0, key.Length);
stream.Write(tempbuf, 0, 4);
stream.Write(key.Buffer, key.Offset, key.Length);
var value = transaction.GetValue();
PackUnpack.PackInt32LE(tempbuf, 0, value.Length);
stream.Write(tempbuf, 0, 4);
stream.Write(value.Buffer, value.Offset, value.Length);
transaction.FindNextKey();
}
}
/// <summary>
/// Writes all key value pairs in current prefix to stream (prefix itself is not written)
/// </summary>
/// <param name="transaction">transaction from where export all data</param>
/// <param name="stream">where to write it to</param>
public static void Export(IKeyValueDBTransaction transaction, Stream stream)
{
if (transaction == null)
{
throw new ArgumentNullException(nameof(transaction));
}
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (!stream.CanWrite)
{
throw new ArgumentException("stream must be writeable", nameof(stream));
}
var keyValueCount = transaction.GetKeyValueCount();
var tempbuf = new byte[16];
tempbuf[0] = (byte)'B';
tempbuf[1] = (byte)'T';
tempbuf[2] = (byte)'D';
tempbuf[3] = (byte)'B';
tempbuf[4] = (byte)'E';
tempbuf[5] = (byte)'X';
tempbuf[6] = (byte)'P';
tempbuf[7] = (byte)'2';
PackUnpack.PackInt64LE(tempbuf, 8, keyValueCount);
stream.Write(tempbuf, 0, 16);
transaction.FindFirstKey(new ReadOnlySpan <byte>());
Span <byte> keyBuffer = stackalloc byte[256];
for (long kv = 0; kv < keyValueCount; kv++)
{
var key = transaction.GetKey(ref MemoryMarshal.GetReference(keyBuffer), keyBuffer.Length);
PackUnpack.PackInt32LE(tempbuf, 0, key.Length);
stream.Write(tempbuf, 0, 4);
stream.Write(key);
var value = transaction.GetValue();
PackUnpack.PackInt32LE(tempbuf, 0, value.Length);
stream.Write(tempbuf, 0, 4);
stream.Write(value);
transaction.FindNextKey(new ReadOnlySpan <byte>());
}
var ulongCount = transaction.GetUlongCount();
if (transaction.GetCommitUlong() != 0 || ulongCount != 0)
{
PackUnpack.PackUInt64LE(tempbuf, 0, transaction.GetCommitUlong());
stream.Write(tempbuf, 0, 8);
}
if (ulongCount != 0)
{
PackUnpack.PackUInt32LE(tempbuf, 0, ulongCount);
stream.Write(tempbuf, 0, 4);
for (var i = 0u; i < ulongCount; i++)
{
PackUnpack.PackUInt64LE(tempbuf, 0, transaction.GetUlong(i));
stream.Write(tempbuf, 0, 8);
}
}
}
public void LoadGlobalInfo(bool sortTableByNameAsc = false)
{
LoadTableNamesDict();
LoadRelationInfoDict();
MarkLastDictId();
_trkv.InvalidateCurrentKey();
_singletons = new Dictionary <uint, ulong>();
while (_trkv.FindNextKey(ObjectDB.TableSingletonsPrefix))
{
_singletons.Add(new SpanReader(_trkv.GetKey().Slice((int)ObjectDB.TableSingletonsPrefixLen)).ReadVUInt32(), new SpanReader(_trkv.GetValue()).ReadVUInt64());
}
if (sortTableByNameAsc)
{
_singletons = _singletons.OrderBy(item => _tableId2Name.TryGetValue(item.Key, out var name) ? name : "").ToDictionary(item => item.Key, item => item.Value);
}
}
protected virtual T CreateInstance(ByteBuffer keyBytes)
{
var writer = new ByteBufferWriter();
writer.WriteBlock(_keyBytes.Buffer, _keyBytes.Offset + _lengthOfNonDataPrefix, _keyBytes.Length - _lengthOfNonDataPrefix);
writer.WriteBlock(keyBytes);
return((T)_manipulator.RelationInfo.CreateInstance(_tr, writer.Data, _keyValueTr.GetValue(), false));
}
internal static IEnumerable <KeyValuePair <uint, string> > LoadTablesEnum(IKeyValueDBTransaction tr)
{
tr.InvalidateCurrentKey();
while (tr.FindNextKey(TableNamesPrefix))
{
yield return(new KeyValuePair <uint, string>(
(uint)PackUnpack.UnpackVUInt(tr.GetKey().Slice(TableNamesPrefixLen)),
new SpanReader(tr.GetValue()).ReadString()));
}
}
protected virtual T CreateInstance(ByteBuffer keyBytes)
{
var data = new byte[_keyBytes.Length - _lengthOfNonDataPrefix + keyBytes.Length];
Array.Copy(_keyBytes.Buffer, _keyBytes.Offset + _lengthOfNonDataPrefix, data, 0,
_keyBytes.Length - _lengthOfNonDataPrefix);
Array.Copy(keyBytes.Buffer, keyBytes.Offset, data, _keyBytes.Length - _lengthOfNonDataPrefix,
keyBytes.Length);
return((T)ItemLoader.CreateInstance(_tr, ByteBuffer.NewAsync(data), _keyValueTr.GetValue()));
}
protected virtual TValue CreateInstance(ByteBuffer prefixKeyBytes, ByteBuffer keyBytes)
{
var data = new byte[_keyBytes.Length - _lengthOfNonDataPrefix + keyBytes.Length];
Array.Copy(_keyBytes.Buffer, _keyBytes.Offset + _lengthOfNonDataPrefix, data, 0,
_keyBytes.Length - _lengthOfNonDataPrefix);
Array.Copy(keyBytes.Buffer, keyBytes.Offset, data, _keyBytes.Length - _lengthOfNonDataPrefix,
keyBytes.Length);
return((TValue)_manipulator.RelationInfo.CreateInstance(_tr, ByteBuffer.NewAsync(data),
_keyValueTr.GetValue(), false));
}
/// <summary>
/// Writes all key value pairs in current prefix to stream (prefix itself is not written)
/// </summary>
/// <param name="transaction">transaction from where export all data</param>
/// <param name="stream">where to write it to</param>
public static void Export(IKeyValueDBTransaction transaction, Stream stream)
{
if (transaction == null)
{
throw new ArgumentNullException(nameof(transaction));
}
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (!stream.CanWrite)
{
throw new ArgumentException("stream must be writeable", nameof(stream));
}
var keyValueCount = transaction.GetKeyValueCount();
var tempbuf = new byte[16];
tempbuf[0] = (byte)'B';
tempbuf[1] = (byte)'T';
tempbuf[2] = (byte)'D';
tempbuf[3] = (byte)'B';
tempbuf[4] = (byte)'E';
tempbuf[5] = (byte)'X';
tempbuf[6] = (byte)'P';
tempbuf[7] = (byte)'2';
PackUnpack.PackInt64LE(tempbuf, 8, keyValueCount);
stream.Write(tempbuf, 0, 16);
transaction.FindFirstKey();
for (long kv = 0; kv < keyValueCount; kv++)
{
var key = transaction.GetKey();
PackUnpack.PackInt32LE(tempbuf, 0, key.Length);
stream.Write(tempbuf, 0, 4);
stream.Write(key.Buffer, key.Offset, key.Length);
var value = transaction.GetValue();
PackUnpack.PackInt32LE(tempbuf, 0, value.Length);
stream.Write(tempbuf, 0, 4);
stream.Write(value.Buffer, value.Offset, value.Length);
transaction.FindNextKey();
}
if (transaction.GetCommitUlong() != 0)
{
PackUnpack.PackUInt64LE(tempbuf, 0, transaction.GetCommitUlong());
stream.Write(tempbuf, 0, 8);
}
}
public KeyValueDBValueReader(IKeyValueDBTransaction transaction) : base(transaction.GetValue())
{
_transaction = transaction;
}
public void Restart()
{
Restart(_transaction.GetValue());
}
void FreeContent(IReaderCtx readerCtx, int cfgId)
{
var config = ODBDictionaryConfiguration.Get(cfgId);
var ctx = (DBReaderWithFreeInfoCtx)readerCtx;
if (config.FreeContent == null)
{
var method = ILBuilder.Instance.NewMethod <FreeContentFun>($"IDictFinder_Cfg_{cfgId}");
var ilGenerator = method.Generator;
var readerLoc = ilGenerator.DeclareLocal(typeof(IReaderCtx));
ilGenerator
.Ldarg(0)
.Ldarg(2)
// ReSharper disable once ObjectCreationAsStatement
.Newobj(() => new DBReaderWithFreeInfoCtx(null, null))
.Stloc(readerLoc);
var readerOrCtx = _valueHandler.NeedsCtx() ? (Action <IILGen>?)(il => il.Ldloc(readerLoc)) : null;
_valueHandler.FreeContent(ilGenerator, il => il.Ldarg(1), readerOrCtx);
ilGenerator.Ret();
config.FreeContent = method.Create();
}
var findIDictAction = (FreeContentFun)config.FreeContent;
long prevProtectionCounter = 0;
long pos = 0;
while (true)
{
if (pos == 0)
{
if (!_keyValueTr.FindFirstKey(_prefix))
{
break;
}
}
else
{
if (_keyValueTr.CursorMovedCounter != prevProtectionCounter)
{
if (!_keyValueTr.SetKeyIndex(_prefix, pos))
{
break;
}
}
else
{
if (!_keyValueTr.FindNextKey(_prefix))
{
break;
}
}
}
prevProtectionCounter = _keyValueTr.CursorMovedCounter;
var valueBytes = _keyValueTr.GetValue();
var valueReader = new SpanReader(valueBytes);
findIDictAction(ctx.GetTransaction(), ref valueReader, ctx.DictIds);
pos++;
}
}
public ByteBuffer GetValue()
{
return(_keyValueDBTransaction.GetValue());
}
public KeyValueDBValueReader(IKeyValueDBTransaction transaction):base(transaction.GetValue())
{
_transaction = transaction;
}
public static byte[] GetValueAsByteArray(this IKeyValueDBTransaction transaction)
{
return(transaction.GetValue().ToByteArray());
}