private byte[] Serialize(PostingsFile item)
{
using (var stream = new MemoryStream())
{
FileBase.Serializer.Serialize(stream, item);
return(stream.ToArray());
}
}
public void Put(PostingsFile item)
{
if (_postingsFiles == null)
{
_postingsFiles = new Dictionary <string, PostingsFile>();
}
_postingsFiles[item.Token] = item;
}
public bool TryGet(string token, out PostingsFile item)
{
InitReadSession();
PostingsFile pf;
if (_postingsFiles.TryGetValue(token, out pf))
{
item = pf;
return(true);
}
var timer = new Stopwatch();
timer.Start();
var fileName = Path.Combine(_directory, _containerId + ".pc");
if (!File.Exists(fileName))
{
item = null;
return(false);
}
using (var fs = File.Open(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (var reader = new StreamReader(fs, Encoding.ASCII))
{
var readerToken = string.Empty;
string line;
string data = null;
while ((line = reader.ReadLine()) != null)
{
readerToken = line.Substring(0, line.IndexOf(':'));
if (readerToken == token)
{
data = line;
break;
}
}
if (data == null)
{
item = null;
return(false);
}
var base64 = data.Substring(readerToken.Length + 1);
var bytes = Convert.FromBase64String(base64);
using (var memStream = new MemoryStream(bytes))
{
var obj = Deserialize(memStream);
_postingsFiles[token] = obj;
Log.DebugFormat("extracted {0} from {1} in {2}", obj, fileName, timer.Elapsed);
item = obj;
return(true);
}
}
}
