public ECollegeResponseCacheEntry Get(string cacheKey)
{
string dirPath = GetDirectoryForCacheKey(cacheKey);
ECollegeResponseCacheEntry result = null;
lock (dirPath)
{
if (storage.DirectoryExists(dirPath))
{
string existingCacheFileName = storage.GetFileNames(GetFileGlobForCacheKey(cacheKey)).FirstOrDefault();
if (existingCacheFileName != null)
{
var existingCacheFilePath = string.Format("{0}\\{1}", dirPath, existingCacheFileName);
var expirationDate =
DateTime.FromFileTimeUtc(long.Parse(Path.GetFileNameWithoutExtension(existingCacheFileName)));
if (expirationDate >= DateTime.UtcNow)
{
using (var f = new IsolatedStorageFileStream(existingCacheFilePath, FileMode.Open, FileAccess.Read, storage))
{
using (var sr = new StreamReader(f))
{
result = new ECollegeResponseCacheEntry();
result.CachedAt = DateTime.Now;
result.Data = sr.ReadToEnd();
}
}
}
else
{
storage.DeleteFile(existingCacheFilePath);
storage.DeleteDirectory(dirPath);
}
}
else
{
storage.DeleteDirectory(dirPath);
}
}
}
return(result);
}
public ECollegeResponseCacheEntry Get(string scope, string cacheKey, TimeSpan?expiration)
{
ECollegeResponseCacheEntry result = null;
string scopePath = GetDirectoryForScope(scope);
lock (scopePath)
{
if (_storage.DirectoryExists(scopePath))
{
string cacheEntryPath = GetDirectoryForCacheEntry(scope, cacheKey);
lock (cacheEntryPath)
{
if (_storage.DirectoryExists(cacheEntryPath))
{
string matchingCacheFileName = GetLatestFileForCacheEntry(scope, cacheKey, expiration);
if (matchingCacheFileName != null)
{
var matchingCacheFilePath = string.Format("{0}\\{1}", cacheEntryPath, matchingCacheFileName);
using (var f = new IsolatedStorageFileStream(matchingCacheFilePath, FileMode.Open, FileAccess.Read, _storage))
{
using (var sr = new StreamReader(f))
{
result = new ECollegeResponseCacheEntry();
result.CachedAt = DateTime.Now;
result.Data = sr.ReadToEnd();
}
}
}
}
}
}
}
return(result);
}