public static T Load <T>(string directoryPath, string name, Func <T> defaultValueFactory)
where T : RocketPackMessageBase <T>
{
if (!Directory.Exists(directoryPath))
{
Directory.CreateDirectory(directoryPath);
}
foreach (string extension in new string[] { ".rpk.gz", ".rpk.gz.bak" })
{
string configPath = Path.Combine(directoryPath, name + extension);
var hub = new Hub();
try
{
if (!File.Exists(configPath))
{
continue;
}
using (var fileStream = new UnbufferedFileStream(configPath, FileMode.Open, FileAccess.Read, FileShare.Read, FileOptions.None, BufferPool.Shared))
using (var gzipStream = new GZipStream(fileStream, CompressionMode.Decompress))
{
for (; ;)
{
var readLength = gzipStream.Read(hub.Writer.GetSpan(1024 * 4));
if (readLength < 0)
{
break;
}
hub.Writer.Advance(readLength);
}
}
hub.Writer.Complete();
var result = RocketPackMessageBase <T> .Import(hub.Reader.GetSequence(), BufferPool.Shared);
hub.Reader.Complete();
return(result);
}
catch (Exception e)
{
_logger.Error(e);
}
finally
{
hub.Reset();
}
}
return(defaultValueFactory());
}
public static T StreamToMessage <T>(Stream inStream)
where T : RocketPackMessageBase <T>
{
using var hub = new Hub();
const int bufferSize = 4096;
while (inStream.Position < inStream.Length)
{
var readLength = inStream.Read(hub.Writer.GetSpan(bufferSize));
if (readLength < 0)
{
break;
}
hub.Writer.Advance(readLength);
}
hub.Writer.Complete();
return(RocketPackMessageBase <T> .Import(hub.Reader.GetSequence(), BufferPool.Shared));
}