public override void Read(BinaryStreamBase stream)
{
CollectedTime = stream.ReadUInt64();
TableId = stream.ReadInt32();
DataLength = stream.ReadUInt8();
stream.Read(Data, 0, Data.Length);
}
/// <summary>
/// Loads a <see cref="DatabaseInfo"/> from stream.
/// </summary>
/// <param name="stream"></param>
public DatabaseInfo(BinaryStreamBase stream)
{
byte version = stream.ReadUInt8();
switch (version)
{
case 1:
DatabaseName = stream.ReadString();
KeyTypeID = stream.ReadGuid();
ValueTypeID = stream.ReadGuid();
int count = stream.ReadInt32();
EncodingDefinition[] definitions = new EncodingDefinition[count];
for (int x = 0; x < count; x++)
{
definitions[x] = new EncodingDefinition(stream);
}
SupportedStreamingModes = new ReadOnlyCollection <EncodingDefinition>(definitions);
KeyType = Library.GetSortedTreeType(KeyTypeID);
ValueType = Library.GetSortedTreeType(ValueTypeID);
break;
default:
throw new VersionNotFoundException("Unknown version code.");
}
}
public override void Read(BinaryStreamBase stream)
{
Timestamp = stream.ReadUInt64();
PointID = stream.ReadUInt64();
TableId = stream.ReadInt32();
CollectedTime = stream.ReadUInt64();
}
/// <summary>
/// Loads the header.
/// </summary>
public void LoadHeader(BinaryStreamBase stream)
{
stream.Position = 0;
byte version = stream.ReadUInt8();
if (version == 109)
{
stream.Position = 0;
if (EncodingDefinition.FixedSizeCombinedEncoding != new EncodingDefinition(stream.ReadGuid()))
{
throw new Exception("Header Corrupt");
}
if (TreeNodeType != new EncodingDefinition(stream.ReadGuid()))
{
throw new Exception("Header Corrupt");
}
if (BlockSize != stream.ReadInt32())
{
throw new Exception("Header Corrupt");
}
if (stream.ReadUInt8() != 0)
{
throw new Exception("Header Corrupt");
}
LastAllocatedBlock = stream.ReadUInt32();
RootNodeIndexAddress = stream.ReadUInt32();
RootNodeLevel = stream.ReadUInt8();
}
else if (version == 1)
{
if (BlockSize != stream.ReadInt32())
{
throw new Exception("Header Corrupt");
}
if (TreeNodeType != new EncodingDefinition(stream))
{
throw new Exception("Header Corrupt");
}
LastAllocatedBlock = stream.ReadUInt32();
RootNodeIndexAddress = stream.ReadUInt32();
RootNodeLevel = stream.ReadUInt8();
}
else
{
throw new VersionNotFoundException();
}
}
public unsafe override void Decode(BinaryStreamBase stream, AmiKey prevKey, AmiValue prevValue, AmiKey key, AmiValue value, out bool isEndOfStream)
{
isEndOfStream = false;
key.Timestamp = stream.ReadUInt64();
key.PointID = stream.ReadUInt64();
value.CollectedTime = stream.ReadUInt64();
value.TableId = stream.ReadInt32();
value.DataLength = stream.ReadUInt8();
stream.Read(value.Data, 0, value.DataLength);
}
/// <summary>
/// Reads the header data.
/// </summary>
/// <param name="stream"></param>
/// <param name="treeNodeType"></param>
/// <param name="blockSize"></param>
internal static void ReadHeader(BinaryStreamBase stream, out EncodingDefinition treeNodeType, out int blockSize)
{
stream.Position = 0;
byte version = stream.ReadUInt8();
if (version == 109)
{
stream.Position = 0;
stream.ReadGuid();
treeNodeType = new EncodingDefinition(stream.ReadGuid());
blockSize = stream.ReadInt32();
}
else if (version == 1)
{
blockSize = stream.ReadInt32();
treeNodeType = new EncodingDefinition(stream);
}
else
{
throw new VersionNotFoundException();
}
}
private static MatchFilterBase <TKey, TValue> CreateFromStream <TKey, TValue>(BinaryStreamBase stream)
where TKey : TimestampPointIDBase <TKey>, new()
{
MatchFilterBase <TKey, TValue> filter;
byte version = stream.ReadUInt8();
ulong maxValue;
int count;
switch (version)
{
case 0:
return(null);
case 1:
maxValue = stream.ReadUInt64();
count = stream.ReadInt32();
if (maxValue < 8 * 1024 * 64) //64KB of space, 524288
{
filter = new BitArrayFilter <TKey, TValue>(stream, count, maxValue);
}
else
{
filter = new UIntHashSet <TKey, TValue>(stream, count, maxValue);
}
break;
case 2:
maxValue = stream.ReadUInt64();
count = stream.ReadInt32();
filter = new ULongHashSet <TKey, TValue>(stream, count, maxValue);
break;
default:
throw new VersionNotFoundException("Unknown Version");
}
return(filter);
}
public override void Read(BinaryStreamBase stream)
{
Value = stream.ReadInt32();
}
