public static bool LockFile(this IObjectStorage storage, ObjectInfo info) {
if (info.Path.EndsWith(".x"))
return false;
string lockedPath = String.Concat(info.Path, ".x");
bool success = storage.RenameObject(info.Path, lockedPath);
if (!success)
return false;
info.Path = lockedPath;
return true;
}
public static bool ReleaseFile(this IObjectStorage storage, ObjectInfo info) {
if (!info.Path.EndsWith(".x"))
return false;
string path = info.Path.Substring(0, info.Path.Length - 2);
bool success = storage.RenameObject(info.Path, path);
if (!success)
return false;
info.Path = path;
return true;
}
public static bool IncrementAttempts(this IObjectStorage storage, ObjectInfo info) {
string[] parts = info.Path.Split('.');
if (parts.Length < 3)
throw new ArgumentException(String.Format("Path \"{0}\" must contain the number of attempts.", info.Path));
int version;
if (!Int32.TryParse(parts[1], out version))
throw new ArgumentException(String.Format("Path \"{0}\" must contain the number of attempts.", info.Path));
version++;
string newpath = String.Join(".", parts[0], version, parts[2]);
if (parts.Length == 4)
newpath += "." + parts[3];
string originalPath = info.Path;
info.Path = newpath;
return storage.RenameObject(originalPath, newpath);
}