internal SqlFileStream(string filename, SqlFileStreamMode mode, ManafestEntry entry) : this(filename, mode)
{
_entry = entry;
if (mode == SqlFileStreamMode.Read)
{
var index = 0;
_typeMappings = entry.Schema.ToDictionary(k => index++, v => v.LookupDataType());
_objectBuffer = new object[entry.Schema.Count];
}
}
public SqlArchive(string filename, SqlFileStreamMode mode, string tempFolder = null)
{
_filename = filename;
_mode = mode;
tempFolder = Path.Combine(tempFolder ?? Path.GetTempPath(), "SqlFileStream");
//create the temp directory if not there
var di = new DirectoryInfo(tempFolder);
if (!di.Exists)
{
di.Create();
}
_folder = Path.Combine(tempFolder, Guid.NewGuid().ToString());
var di2 = new DirectoryInfo(_folder);
if (!di2.Exists)
{
di2.Create();
}
}
// ReSharper disable once MemberCanBePrivate.Global
public SqlFileStream(string filename, SqlFileStreamMode mode)
{
_mode = mode;
_jsonSerializer = new JsonSerializer();
switch (mode)
{
case SqlFileStreamMode.Read:
_fileStream = File.Open(filename, FileMode.Open);
_compressionStream = new GZipStream(_fileStream, CompressionMode.Decompress);
_streamReader = new StreamReader(_compressionStream);
_jsonReader = new JsonTextReader(_streamReader);
break;
case SqlFileStreamMode.Write:
_fileStream = File.Open(filename, FileMode.Create);
_compressionStream = new GZipStream(_fileStream, CompressionMode.Compress);
break;
default:
throw new ArgumentOutOfRangeException(nameof(mode), mode, null);
}
IsClosed = false;
}
