private IPersistentStorage GetStorage(Solution solution, string workingFolderPath)
{
lock (_lookupAccessLock)
{
// see whether we have something we can use
AbstractPersistentStorage storage;
if (_lookup.TryGetValue(solution.FilePath, out storage))
{
// previous attempt to create esent storage failed.
if (storage == null && !SolutionSizeAboveThreshold(solution))
{
return(NoOpPersistentStorageInstance);
}
// everything seems right, use what we have
if (storage?.WorkingFolderPath == workingFolderPath)
{
storage.AddRefUnsafe();
return(storage);
}
}
// either this is the first time, or working folder path has changed.
// remove existing one
_lookup.Remove(solution.FilePath);
var dbFile = EsentPersistentStorage.GetDatabaseFile(workingFolderPath);
if (!File.Exists(dbFile) && !SolutionSizeAboveThreshold(solution))
{
_lookup.Add(solution.FilePath, storage);
return(NoOpPersistentStorageInstance);
}
// try create new one
storage = TryCreateEsentStorage(workingFolderPath, solution.FilePath);
_lookup.Add(solution.FilePath, storage);
if (storage != null)
{
RegisterPrimarySolutionStorageIfNeeded(solution, storage);
storage.AddRefUnsafe();
return(storage);
}
return(NoOpPersistentStorageInstance);
}
}
