private SiteInfo LoadSiteInfoFromFile(string domain)
{
if (!SiteInfo.IsValidDomain(domain))
{
return(null);
}
string fileName = GetFullSiteInfoFileName(domain);
if (!File.Exists(fileName))
{
return(null);
}
int retryCount = 3;
do
{
try
{
using (var stream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.None))
{
using (var reader = new StreamReader(stream))
{
string st = reader.ReadToEnd();
return(SiteInfo.DeserializeFromJson(st));
}
}
}
catch (IOException)
{
retryCount--;
if (retryCount == 0)
{
return(null);
}
Thread.Sleep(2);
}
catch
{
return(null);
}
}while (retryCount > 0);
return(null);
}