private static AnnotationDatabase Open(string path, FileStream stream)
{
using (var binaryReader = new Util.BinaryReader(stream, Encoding.UTF8, true))
{
var signature = binaryReader.ReadBytes(Signature.Length);
if (!signature.SequenceEqual(Signature))
{
throw new DatabaseException("Incompatible Statsify Database format");
}
var major = binaryReader.ReadByte();
var minor = binaryReader.ReadByte();
var version = new Version(major, minor);
if (version != new Version(1, 0))
{
throw new DatabaseException("Incompatible Statsify Database version");
}
} // using
return(new AnnotationDatabase(path));
}
private static DatapointDatabase Open(string path, Stream stream, Func <DateTime> currentTimeProvider = null)
{
using (var binaryReader = new Util.BinaryReader(stream, Encoding.UTF8, true))
{
var signature = binaryReader.ReadBytes(Signature.Length);
if (!signature.SequenceEqual(Signature))
{
throw new DatabaseException("Incompatible Statsify Database format");
}
var major = binaryReader.ReadByte();
var minor = binaryReader.ReadByte();
var version = new Version(major, minor);
if (version != new Version(1, 0))
{
throw new DatabaseException("Incompatible Statsify Database version");
}
var dowsamplingMethod = (DownsamplingMethod)binaryReader.ReadInt32();
var downsamplingFactor = binaryReader.ReadSingle();
var maxRetention = binaryReader.ReadInt32();
var archivesLength = binaryReader.ReadInt32();
var archives = new List <Archive>();
for (var i = 0; i < archivesLength; ++i)
{
var offset = binaryReader.ReadInt32();
var precision = binaryReader.ReadInt32();
var history = binaryReader.ReadInt32();
archives.Add(new Archive(offset, history * DatapointSize, new Retention(TimeSpan.FromSeconds(precision), history)));
} // for
return(new DatapointDatabase(path, downsamplingFactor, dowsamplingMethod, maxRetention, archives, currentTimeProvider));
} // using
}
public static PixelFormat Deserialize(Util.BinaryReader reader)
{
return(new PixelFormat()
{
BitsPerPixel = reader.ReadByte(),
Depth = reader.ReadByte(),
BigEndianFlag = reader.ReadByte(),
TrueColorFlag = reader.ReadByte(),
RedMax = reader.ReadUInt16(),
GreenMax = reader.ReadUInt16(),
BlueMax = reader.ReadUInt16(),
RedShift = reader.ReadByte(),
GreenShift = reader.ReadByte(),
BlueShift = reader.ReadByte(),
Padding = reader.ReadBytes(3),
});
}
