public void downLoadFile(string id, MemoryStream fileToDownload)
{
string absoluteFilePath = rootPath + "\\" + id;
FileStream fstream = new FileStream(absoluteFilePath, FileMode.Create);
fileToDownload.WriteTo(fstream);
fstream.Close();
fileToDownload.Close();
TemporaryFileInformation curFile = new TemporaryFileInformation(DateTime.Now, absoluteFilePath);
cachedFiles.Add(id, curFile);
}
/*
* Will check to see if cachedFiles contains a valid instance of the requested file.
* Returns true if it does, if false, will remove the entry in the cache, and on the disk.
*/
public bool containsValidInstanceOfFile(string fileID)
{
TemporaryFileInformation curFileInfo = null;
cachedFiles.TryGetValue(fileID, out curFileInfo);
if (curFileInfo == null)
{
//was not present in the cache
return(false);
}
DateTime curTime = DateTime.Now;
TimeSpan timeElapsed = DateTime.Now.Subtract(curFileInfo.TimeCreated);
if (timeElapsed.TotalMinutes <= TIMEVALIDMINUTES)
{
//file is still 'fresh' enough
return(true);
}
return(false);
}
